Abrégé

The invention relates, on the one hand, to a strand guide unit for a continuous casting system for producing a strand, comprising strand guide rollers for guiding a strand on both sides and, on the other hand, to a continuous casting system. One object of the invention is to create a strand guide unit that produces a temperature distribution on the surface of the strand which is as uniform as possible during the continuous casting process. This influences the temperature distribution in the strand and improves the quality of the end product. The object is achieved in that the strand guide rollers of the strand guide unit each have at least three centre bearing points, wherein the at least two centre rolls each have the same length in the width direction. The two edge rolls of each strand guide roller have a difference in length to each other in the width direction that corresponds to half the length of a centre roll including half the width of a centre bearing point. Viewed in the casting direction, directly adjacent strand guide rollers are each mirrored around a plane that runs along half the total length of the strand guide rollers in the casting direction.

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement

Abrégé

A method for the reduction of a metal oxide-containing material in which a reducing gas that is obtained using ammonia (NH3) is used. The reducing gas is supplied to a reduction reactor containing the metal oxide-containing material, and a top gas is discharged from the reduction reactor. At least one sub-quantity of the top gas is used as components in the preparation of the reducing gas, optionally after the top gas is prepared. A device for the reduction of the metal oxide-containing material that includes a reduction reactor, a top gas discharge line for discharging top gas, a supply line for an ammonia contribution, a preparation system for preparing the reducing gas, a supply line for the ammonia contribution leading into the preparation system, and a feed line for feeding the reducing gas and/or a precursor of the reducing gas to the reduction reactor.

Classes IPC  ?

• C21B 5/00 - Fabrication de la fonte brute dans les hauts fourneaux
• B01J 8/18 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées
• C21B 7/00 - Hauts fourneaux
• C21B 7/10 - RefroidissementDispositifs à cet effet

Abrégé

The invention relates to a driver (51) and to a method for operating a driver (51) of a rolling mill having a reel, the driver (51) being designed to control the feeding of the rolled material to the reel by means of a driver roll (5, 53, 55) which contacts the rolled material. The driver (51) has a sensor unit (1) for capturing a surface structure of the driver roll (5, 53, 55). The sensor unit (1) comprises a sensor support (9) with a plurality of laser sensors (7) which are designed to each output a divergent laser light beam (23) onto the surface (54, 56) of the driver roll (53, 55) and to receive laser light (29). The driver (5) can have a control unit (11) for capturing the surface structure of the driver roll (53, 55) on the basis of the reflected laser light (29). For the purpose of demounting, the sensor unit (1) can be arranged such that it can be removed from the driver (51) by means of a lifting device or such that it can be laterally led out of the driver (51).

Classes IPC  ?

• B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
• B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
• G01B 11/245 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes en utilisant plusieurs transducteurs fixes fonctionnant simultanément
• G01B 11/25 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes en projetant un motif, p. ex. des franges de moiré, sur l'objet
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 21/952 - Inspection de la surface extérieure de corps cylindriques ou de fils

Abrégé

A dispensing device that intermittently dispenses a cooling medium onto a cast strand in a continuous casting installation. The dispensing device has a housing with at least one inlet opening for letting the cooling medium into the housing and a dispensing opening for dispensing the cooling medium out of the housing. A switching valve is arranged in the housing and is designed to open and close the dispensing opening. The switching valve has a sleeve, which is filled with a working fluid and which, on the dispensing opening side, is closed with a closure in a fluid-tight manner. The closure has a switching element, which, by controlling the pressure in the working fluid, is displaceable relative to the sleeve into a closing position in which the switching element closes the dispensing opening.

Classes IPC  ?

• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B05B 1/08 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de nature pulsatoire, p. ex. débitant un liquide en quantités successives séparées
• B05B 1/30 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour commander un débit, p. ex. à l'aide de conduits de section réglable
• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules

Abrégé

The invention relates to a method for reducing a metal oxide-containing material. A reduction gas which at least contains hydrogen is supplied to a reduction reactor (3), and a hydrogen-containing top gas is discharged from the reduction reactor (3). A sub-quantity of the top gas is supplied to gas burners (6), which are used in the preparation of the reduction gas, as a component of the fuel gas. If the content of hydrogen in the reduction gas and/or in the top gas increases, the content of water vapor in the fuel gas is increased. A device for this purpose comprises a reduction reactor (3), a top gas discharge (5) for discharging a top gas out of the reduction reactor (3), a preparation system (7) which comprises at least one gas burner (6) for preparing reduction gas, and a supply line (8) for supplying a sub-quantity of the top gas to the at least one gas burner (6) as a fuel gas component. The device is characterized by also comprising at least one member of the group consisting of the two members a) at least one device (9) for determining the water vapor content in the reduction gas and/or in the top gas and b) a device (9a) for ascertaining an increase of the proportion of hydrogen in the reduction gas and/or in the top gas as well as a device (10) for controlling and/or regulating the water vapor content in the fuel gas using the hydrogen content in the reduction gas and/or in the top gas.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• F27D 19/00 - Aménagement des dispositifs de commande

Abrégé

33 and carbon-containing gas is used. During the process of obtaining the reducing gas, a first gas stream, which contains ammonia, is subjected to an ammonia cracking process, and a cracked gas stream is produced. A second gas stream, which contains carbon, is subjected to a reforming process, and a reformed gas stream is produced. At least one sub-quantity of the cracked gas stream and at least one sub-quantity of the reformed gas stream are combined, and heat accumulated during the reforming process is supplied to the ammonia cracking process. The invention also relates to a device for the reduction (10) of a metal oxide-containing material, comprising: a reducing assembly (30), a reducing gas feed line (40) which opens into the reducing assembly (30), a first gas stream line (50) for ammonia-containing gas, a second gas stream line (70) for carbon-containing gas, a device for the ammonia cracking process (60), a reforming device (80), a cracked gas stream line (61), a reformed gas stream line (81), and a combined gas stream line (90). The first gas stream line (50) opens into the device for the ammonia cracking process (60), and the second gas stream line (70) opens into the reforming device (80). The cracked gas stream line (61) goes out from the device for the ammonia cracking process (60), and the reformed gas stream line (81) goes out from the reforming device (80). The cracked gas stream line (61) and the reformed gas stream line (81) open into the combined gas stream line (90). A heat supply device (100) is provided for supplying heat from the heat accumulated during the reforming process in the reforming device (80) to the device for the ammonia cracking process (60).

Classes IPC  ?

• C21B 5/06 - Utilisation des gaz de sortie des hauts fourneaux
• C01B 3/34 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants
• C01B 3/38 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec des catalyseurs
• C21B 7/00 - Hauts fourneaux
• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C22B 9/05 - Affinage par traitement avec des gaz, p. ex. par décrassage par un gaz

Abrégé

The invention relates to a method for the reduction of a metal oxide-containing material, wherein a reducing gas which is obtained using ammonia NH3 and carbon-containing gas is used. During the process of obtaining the reducing gas, a mixture which comprises ammonia and carbon-containing gas is provided. At least one sub-quantity of the mixture is first subjected to ammonia-cracking conditions at a temperature in a range with an upper limit of 650 °C, and a cracked gas mixture is produced. At least one sub-quantity of the cracked gas mixture is then subjected to reforming conditions at a temperature in a range with a lower limit of 700 °C. A device for this purpose comprises a reducing assembly (30), a reduced gas feed line (40) which opens into the reducing assembly (30), a supply line for carbon-containing gas (50), and an ammonia supply line (60). The invention is characterized in that the supply line for carbon-containing gas (50) and the ammonia supply line (60) open into a mixture line (70), and the mixture line (70) opens into a device for an ammonia cracking process (80). A cracked gas mixture line (90) goes out from the device for the ammonia cracking process (80), said cracked gas mixture line opening into a reforming device (100), and a reformed gas line (110) goes out from the reforming device (100), said reformed gas line opening into the reduced gas feed line (40).

Classes IPC  ?

• C21B 5/06 - Utilisation des gaz de sortie des hauts fourneaux
• C01B 3/02 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène
• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac
• C01B 3/34 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants
• C01B 3/38 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air par réaction d'hydrocarbures avec des agents gazéifiants avec des catalyseurs
• C21B 7/00 - Hauts fourneaux
• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C22B 9/05 - Affinage par traitement avec des gaz, p. ex. par décrassage par un gaz

Abrégé

A method that includes casting liquid metal in the mould of the strand casting system, extracting a metal strand from the mould using rollers of the strand guide of the strand casting system, determining a measurement variable, which correlates to the fluctuation of the casting level in the mould, cyclically changing the spacing of the opposing rollers of the strand guide in directions opposite to the fluctuations of the casting level to reduce fluctuations of the casting level, and detecting casting level fluctuation frequencies and providing at least one observer, which determines the actual value (ACT) of the roller spacing being used as one of the input variables for the observer in order to compensate a phase shift and/or amplitude of the actual value (ACT) of the roller spacing.

Classes IPC  ?

• B22D 11/20 - Commande ou régulation des opérations ou du fonctionnement du retrait des barres coulées

Abrégé

The present invention is in the field of combined casting and rolling processes, which can be carried out in a continuous mode and in a batch mode. The object of the present invention is to provide a compact installation that is intended for producing a metal strip and can be operated both in continuous mode and in a batch mode. The object is achieved on the one hand by an outfeed device (5a) and an infeed device (5b) being arranged between the first casting installation (1) and a rolling mill (8). The outfeed device (5a) can outfeed cut first slabs (40) transversely to the casting direction (G). Directly downstream of the outfeed device (5a) is an infeed device (5b) which has a heating furnace (5c) and is intended for infeeding cut slabs (41). The distance (L) between the end of the first casting installation (1) and the start of the rolling mill (8) is less than 100 m, preferably less than 80 m, particularly preferably less than 60 m.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 13/22 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires pour laminer du métal immédiatement après la coulée continue
• B21B 39/00 - Systèmes pour faire avancer, soutenir ou présenter le matériau, ou pour commander son mouvement, combinés avec des laminoirs, disposés dans des laminoirs, ou spécialement conçus pour être utilisés avec des laminoirs
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs

Abrégé

The invention relates to an apparatus (1) for treating exhaust gas (2) of a main process (3), comprising a filter unit (4), which has a first and a second filter stage (5, 6), and a gas feed line (11) for feeding the exhaust gas (2) from the main process (3) to the filter unit (4). The first filter stage (5) comprises a first filter (7) and a second filter (8); the second filter stage (6) comprises a third filter (9). The third filter (9) is disposed in the filter unit (4) between the first filter (7) and the second filter (8). The gas feed line (11) has a device (12) for dividing the incoming exhaust gas (2) among a first and a second gas feed line (13, 14). A gas transfer system (18) is used to transfer the partial gas flows (16, 17), after flow through the first and second filters (7, 8), to the third filter (9). The gas transfer system (18) has a main-additive feed device (21) for feeding a main additive (22) to the exhaust gas. Discharge devices (23, 25, 27) are provided for discharging filter products (24, 26, 28) removed by the filters (7, 8, 9). The invention also relates to a method for treating exhaust gas of a main process by means of the apparatus according to the invention.

Classes IPC  ?

• B01D 53/83 - Procédés en phase solide avec des réactifs en mouvement
• B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
• B01D 46/32 - Séparateurs de particules utilisant une substance non agglomérée, p. ex. appareils de précipitation de poussières dont la substance filtrante est mobile pendant la filtration
• B01D 46/58 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en parallèle
• B01D 46/62 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en série
• B01D 46/66 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre
• B01D 53/10 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants mobiles avec adsorbants dispersés
• B01D 39/08 - Tissus filtrants, c.-à-d. matériau tissé, tricoté ou entrelacé

Abrégé

A method and a device that bridge an interruption in production in a combined casting-rolling installation to provide a combined casting-rolling installation for producing a hot-rolled finished strip, in which, in the case of an interruption, also thick precursor material having a thickness of >30 mm can be separated in a rapid and reliable manner from the next precursor material.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 13/22 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires pour laminer du métal immédiatement après la coulée continue
• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs

Abrégé

The present invention is provided with: a first temperature-raising device provided on a rolling line between a continuous casting machine 12 and a roughing mill 70; a second temperature-raising device provided on a temperature-raising line different from the rolling line; a first slab conveyance device 40 configured to be capable of moving a slab 100 between the outlet side for the slab 100 in the rolling line of the first temperature-raising device and the inlet side for the slab 100 in the temperature-raising line of the second temperature-raising device; and a second slab conveyance device 42 configured to be capable of moving the slab 100 between the inlet side for the slab 100 in the rolling line of the first temperature-raising device and the outlet side for the slab 100 in the temperature-raising line of the second temperature-raising device. The first temperature-raising device has a first induction heating slab heater 20, and the second temperature-raising device has a second induction heating slab heater 22. As a result, the present invention provides: a temperature-raising device with which it is possible to improve the temperature-raising efficiency before feeding a cast slab to the roughing mill as compared with the prior art; rolling equipment provided with the same; and a method for raising the temperature of the cast slab.

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue

Abrégé

A direct reduction plant that includes a catalytic reformer and/or a gas furnace and a gas compression plant having one or more compressors. The gas compression plant includes at least one compression stage, and wherein at least one gas cooler for compressed gas. A direct introduction line for introducing gas directly into the reformer and/or into the gas furnace proceeds from the gas compression plant or the gas cooler. A bypass is provided at least at one of the compressors. During operation, at least a portion of the compressed gas is cooled and compressed gas from the gas compression plant or the gas cooler is introduced directly into the reformer and/or the gas furnace. At least intermittently, a portion of a gas compressed by a compressor is returned by means of the bypass.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

The invention relates to a stirrer roller (55, 60) for a continuous casting machine (10) for producing a hot strand (40) and to a continuous casting machine (10) comprising such a stirrer roller (55, 60), said stirrer roller (55, 60) having a first barrel (70) which is rotatably mounted about a first rotational axis (65), a second barrel (75) which is rotatably mounted about the first rotational axis (65), a connecting unit (81), a first coil assembly (85) with at least one first electric coil (165), a second coil assembly (90) with at least one second electric coil (170), and an intermediate bearing (80), wherein the connecting unit (81) and the intermediate bearing (80) are arranged axially between the first barrel (70) and the second barrel (75) with respect to the first rotational axis (65), and the intermediate bearing (80) engages around the circumference of the connecting unit (81) and is designed to support a respective force (F) from the first barrel (70) and the second barrel (75). The connecting unit (81) electrically connects the first electric coil (165) to the second electric coil (170) in a series circuit, and the first coil assembly (85) and the second coil assembly (90) are designed to generate a respective magnetic field which acts radially outwards relative to the first barrel (70) and the second barrel (75) when the first electric coil (165) and the second electric coil (170) are energized.

Classes IPC  ?

• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B22D 11/115 - Traitement du métal liquide en utilisant des moyens agitateurs ou vibrants en utilisant des champs magnétiques

Abrégé

A die (for a continuous casting installation) that includes a movably mounted frame having a first subframe and a second subframe; a first broad-side insert which is positioned on the first subframe; and a second broad-side insert which is positioned on the second subframe. Narrow sides each having a narrow-side copper plate and abuting the two broad-side inserts are positioned between the two broad-side inserts. The die also has: a clamping device which is designed to exert, on the subframes, a clamping force that acts between the subframes; and an oscillation drive which is designed to make the frame oscillate in and counter to a horizontal width direction (H) relative to the narrow sides. A spring band assembly which guides the subframes is positioned on each subframe on sides which are opposite one another in the width direction (H).

Classes IPC  ?

• B22D 11/051 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond dans des moules ayant des parois oscillantes
• B22D 11/053 - Moyens pour faire osciller les moules

Abrégé

The present invention describes a method and a device for data processing for automatically adjusting parameters in a mathematical model. The technical problem consists in improving a computer-implemented method for automatically adjusting parameters in a mathematical model for the monitoring and/or open-loop/closed-loop control of a production process for steelmaking, said improvement being achieved by optimizing parameters. Input variables comprising at least one measured value are fed into the mathematical model, and the mathematical model outputs output variables that are used for the monitoring and/or open-loop/closed-loop control of the production processes. The technical problem is solved in that the input variables and the parameters are recorded at least in part, wherein operands comprise at least one process variable, for which measurands are also available. A cost function of differences is determined which evaluates the deviation between said measurands and the corresponding operands, with a sensitivity vector being determined from the cost function of differences and from the parameters. By means of an optimization method, parameters are determined progressively such that the cost function of differences is minimized.

Classes IPC  ?

• G05B 17/02 - Systèmes impliquant l'usage de modèles ou de simulateurs desdits systèmes électriques

Abrégé

122) between two identical pairs of rollers (12) varies within the roller arrangement (10, 10a, 10b).

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B21B 1/02 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer de grosses pièces, p. ex. des lingots, brames, billettes dont la section droite est sans importance

Abrégé

The invention relates to a method and a system (20) for applying a lubricant (11) during cold rolling of a metal rolling product (2) on a rolling stand (1) having two work rolls (3, 4) spaced apart from one another by a roll gap (7). The lubricant (11) is dispensed by a plurality of single-material nozzles (23), each designed as a flat jet nozzle, either onto a surface (2.1, 2.2) of the rolling product (2) or onto a surface of the work roll (3, 4). Each single-material nozzle (23) dispenses an amount of lubricant in the range of 200 ml/min to 500 ml/min at a pressure in the range of 2 bar to 10 bar, and the amount of lubricant dispensed by each single-material nozzle (23) is adjusted such that the amount of lubricant dispensed by the single-material nozzle (23) per unit area onto the surface (2.1, 2.2) of the rolling product (2) or onto a surface of a work roll (3, 4) is essentially independent of the current rolling speed.

Classes IPC  ?

• B21B 27/10 - Lubrification, refroidissement ou chauffage des cylindres extérieurement
• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer

Abrégé

Liquid metal (3) is cast to form a metal strand (4) by means of a continuous-casting die (2) of a continuous-casting installation (1). The cast metal strand (4) is drawn off from the continuous-casting die (2) at a drawing-off rate (vA) in a drawing-off direction (x) by means of a strand guide (5) of the continuous-casting installation. When it is being drawn off from the continuous-casting die (2), the cast metal strand (4) has a solid strand shell (6) and a still-liquid core (7), which gradually solidifies while the cast metal strand (4) is running through the strand guide (5). A control device (14) controls a separating device (10) of the continuous-casting installation (1) as and when required in such a way that the separating device (10) detaches an already solidified portion (11) of the metal strand (4) from the cast metal strand (4) at a cutting location (12). The cutting location (12) is that location along the strand guide (5) at which the detachment of the already solidified portion (11) from the cast metal strand (4) begins. Before the respective detachment, the respective cutting location (12), as seen in the drawing-off direction (x), is known to the control device (14) individually for the respective detaching operation. Before the respective detachment, the control device (14) positions the separating device (10) at the respective cutting location (12), as seen in the drawing-off direction (x).

Classes IPC  ?

• B22D 11/126 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour la coupe
• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement

Abrégé

A conveying device for conveying metal strip coils. The conveying device includes: at least one coil carrier to carry a metal strip coil; two conveying stations arranged at different heights and each designed to receive one coil carrier; and a conveyor track extending between the conveying stations and having a conveyor drive by means of which a coil carrier can be conveyed on the conveyor track between the conveying stations. Each conveying station is tiltable between a first end position in which the conveying station is oriented horizontally and a second end position, wherein the conveying station has an inclination in the second end position which corresponds to the inclination of the conveyor track and adjoins the conveyor track so that a coil carrier can be conveyed by means of the conveyor drive from the conveyor track into the conveying station and from the conveying station onto the conveyor track.

Classes IPC  ?

• B21D 43/00 - Dispositifs d'alimentation, de positionnement ou de stockage combinés à des appareils pour travailler ou traiter les tôles, les tubes ou les profilés, disposés dans ces appareils ou spécialement adaptés pour être utilisés en association avec ces appareilsAssociation de dispositifs de coupe avec ces appareils

Abrégé

An elongated rolled product (2) made of metal is conveyed through a working region (3) of an inductive heating element (1) in a transport direction (x) by means of a transport device (4) such that first a rolled product head (6), then a starting region (7) which adjoins the rolled product head (6), then a central piece (8) which adjoins the starting region (7), then a terminating region (9) which adjoins the central piece (8), and finally a rolled product foot (10) which terminates the terminating region (9) enter the working region (3) and then later exit the working region (3). The working region (3) is the region in which the inductive heating process is carried out. The starting region (7), the central piece (8), and the terminating region (9) are defined in that at a first point in time (t1) at which the rolled product head (6) exits the working region (3), the transition from the starting region (7) to the central piece (8) enters the working region (3) and at a second point in time (t2) at which the rolled product foot (10) enters the working region (3), the transition from the central piece (8) to the terminating region (9) exits the working region (3). Prior to the first point in time (t1) and after the second point in time (t2), the controller (11) operates the inductive heating element (1) according to a voltage control, and between the first and second point in time (t1, t2), the controller operates the inductive heating element according to a power control.

Classes IPC  ?

• H05B 6/06 - Commande, p. ex. de la température, de la puissance
• H05B 6/10 - Appareils de chauffage par induction, autres que des fours, pour des applications spécifiques
• C21D 1/42 - Chauffage par induction

Abrégé

A method for producing a dual-phase steel strip in a system having a finish-rolling train with a first stand group that includes at least one first finish-rolling stand, and a second stand group that includes at least one stand cooler. The system has a cooling section that includes a first cooling section group and a second cooling section group. Immediately following finish-rolling of a finish-rolled strip, the finish-rolled strip is fed to the second stand group, and force-cooled to a second exit temperature (TA2) so that upon exiting the second stand group the strip has a predominantly austenitic structure. Once the force-cooling stops, a ferritic and austenitic structure forms in the finish-rolled strip during transport. The finish-rolled strip is force-cooled to a fourth exit temperature (TA4) in the second cooling section group so that, upon exiting, the finish-rolled strip has a dual-phase structure composed of martensite and ferrite.

Classes IPC  ?

• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B21B 3/02 - Laminage des alliages ferreux particuliers
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
• C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse

Abrégé

Work roll balance force setting method of rolling mill. Determine kiss roll load Pk, rolling load Pr, and rolling torque Tr of work rolls relative to work roll angle θx of tip position of rolled material between start and completion of biting of rolled material using mill longitudinal rigidity coefficient K and rolling condition. Determine traction coefficient μrt between work and intermediate rolls, and maximum value μrtmax of μrt in relation to θx when hypothetical work roll balance force Pb is applied from sum P of Pk, Pr, and Pb, and Tr between start and completion of biting. Compare tolerated value μrter of μrt with μrtmax. Work roll balance force at start of biting reset to equal to or larger than required when μrt assumes maximum value μrtmax, and equal to or smaller than limit based on strength of rolling mill, when μrter is equal to or larger than μrtmax.

Classes IPC  ?

• B21B 13/14 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires ayant des dispositifs de contre-pression agissant sur les cylindres pour les empêcher de ployer sous l'effort
• B21B 13/02 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires dont les axes des cylindres sont disposés horizontalement
• B21B 31/20 - Réglage des cylindres en déplaçant les cylindres perpendiculairement à leur axe
• B21B 37/58 - Commande de la force de laminageCommande de l'écartement des cylindres

Abrégé

The invention relates to a dry granulator (10), wherein: the dry granulator (10) has a housing (15) and an atomizer (20), which is arranged in the housing (15) and has an atomizer element (55) mounted rotatably about an axis of rotation (45); the housing (15) has a first housing inner wall (70), with a first housing inner-wall section (295) and a second housing inner-wall section (305); the atomizer element (55) has a wall (115) and a floor (110); on an axially remote axial side in relation the the floor (110), the wall (115) has a rim (125) located axially at a distance from the floor (110); the rim (125) extends varyingly between a first high point (185) and a first low point (190); the rim (125) is at a closer distance from the floor (110) at the first low point (190) than at the first high point (185); the rim (125), between the first high point (185) and the first low point (190), inclusive, is designed to spray molten material (35) from the atomizer element (55) along different trajectories (291, 296) in the direction of the first housing inner-wall section (295) and the second housing inner-wall section (305).

Classes IPC  ?

• C21B 3/06 - Traitement du laitier liquide
• C21B 3/08 - Refroidissement du laitier

Abrégé

A pedestal bearing that has a pedestal bearing housing with a bearing seat, a cooling duct system with at least one cooling duct, and an anti-friction bearing arranged in the bearing seat and has an anti-friction bearing outer ring. The bearing seat has a first inner circumferential side. The pedestal bearing housing has a first contact surface and is configured to transmit a bearing force (F) from the anti-friction bearing outer ring to the first contact surface. The cooling duct extends circumferentially and is configured to conduct a coolant, which can be fed into the cooling duct in order to cool the anti-friction bearing and/or the pedestal bearing housing. The first inner circumferential side of the bearing seat of the pedestal bearing housing delimits the cooling duct radially on the outside and the anti-friction bearing outer ring delimits the cooling duct radially on the inside.

Classes IPC  ?

• F16C 37/00 - Refroidissement des paliers
• F16C 33/58 - Chemins de roulementBagues de roulement
• F16C 35/04 - Supports rigides de paliersCorps de paliers, p. ex. calottes, couvercles dans le cas de roulements à billes ou à rouleaux

Abrégé

The invention is in the field of steel manufacture, specifically in the field of steel manufacture using an electric arc furnace. The aim of the present invention is to offer a cost-effective solution and to allow for different expansion behaviors of the materials used. This aim is achieved in that the side wall (3) and a first portion of the melting vessel base, which is connected to the closed side wall (3), are manufactured from a metal, preferably steel having magnetic properties. A second portion of the melting vessel base (4), which is enclosed by the first portion, is designed as a recess (5); the recess (5) is closed by a cover sheet (10) having non-magnetic properties. The cover sheet (10) has an overlapping support face which rests on the first portion; the cover sheet (10) is mounted floatingly. Stops (11) that are arranged accordingly ensure that the cover sheet (5) always has an overlapping support face (4a) across the entire periphery of the recess (5).

Classes IPC  ?

• F27D 27/00 - Dispositifs agitateurs pour matériaux fondus
• C21C 5/52 - Fabrication de l'acier au four électrique
• F27D 11/12 - Aménagement des éléments pour le chauffage électrique dans ou sur les fours avec champs électromagnétiques agissant directement sur le matériau à chauffer
• F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
• F27D 1/00 - CarcassesGarnissagesParoisVoûtes
• F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur

Abrégé

The present invention relates to the field of continuous casting technology and describes a hydraulic system and a continuous casting plant. The hydraulic system comprises a hydraulic station (1), downstream of which at least one pressure amplifier having a control device (8) is connected, which pressure amplifier can output high pressure at the outlet. At least one valve assembly (5b) is connected to an output of the pressure amplifier having the control device (8), and the valve assembly (5b) can supply a downstream hydraulic actuator (5a) with high pressure. The continuous casting plant contains the hydraulic system, comprising a hydraulic station (1) for providing an operating pressure, as well as a plurality of strand guide units for guiding the strand and/or reducing the thickness of a casting strand, which have (hydraulic actuators 5a) for adjusting the casting gap. At least one pressure amplifier having the control device (8) is connected downstream of the hydraulic station, which pressure amplifier is supplied with the operating pressure at the input and can output high pressure at the output. At least one strand guide unit having at least one hydraulic actuator (5a) is connected, via an upstream valve assembly (5b), to an output of the pressure amplifier having the control device (8).

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 27/11 - Traitement du métal dans le moule pendant qu'il est liquide ou plastique en appliquant une pression en utilisant un dispositif presseur mécanique
• B22D 46/00 - Commande, surveillance, non limitées à un procédé de coulée couvert par un seul groupe principal, p. ex. pour des raisons de sécurité

Abrégé

A six-high rolling (also known as sexto) mill stand that is suited for hot rolling an intermediate strip into a thin strip that is less than 0.8 mm thick. A combined casting and rolling installation that includes the six-high rolling mill stand allowing for hot rolling in long uninterrupted sequences, without any change of the work rolls to obtain a strip with good geometry due to moderate rolling forces.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 13/02 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires dont les axes des cylindres sont disposés horizontalement
• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
• B21B 37/42 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant une combinaison de la flexion et du déplacement axial des cylindres
• B21B 37/44 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant le chauffage, la lubrification ou le refroidissement par jets d'eau, du produit
• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer

Abrégé

During the operation of a metallurgical plant (1, 9, 10) in iron or steel production, a gas (2) containing solid particles (4) is produced. Samples of the gas (2) are repeatedly taken. By means of analysis of the samples taken, at least one analysis value (n) of the gas (2) is determined in each case. Based on the determination of the analysis value (n), at least one process parameter (P) of the metallurgical plant (1, 9, 10) is updated. The objective is for the at least one analysis value (n) of the gas (2) to come closer to a target value (n*). The at least one analysis value (n) is a quantity of solid particles (4) based on a predetermined amount of the gas (2).

Classes IPC  ?

• C21B 5/00 - Fabrication de la fonte brute dans les hauts fourneaux
• F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
• F27D 19/00 - Aménagement des dispositifs de commande
• C21C 5/52 - Fabrication de l'acier au four électrique
• C21C 5/30 - Réglage et commande du soufflage
• C21C 5/46 - Parties constitutives ou accessoires

Abrégé

The invention relates to an overall system which comprises, as sub-systems, a DRI system (1), an electrolysis system (4), a hydrogen store (6) and a supply device (7). The DRI system (1) and the electrolysis system (4) are connected to an electricity-supply network (2) for receiving electricity, the DRI system (1), the electrolysis system (4) and the hydrogen store (6) are interconnected for transferring hydrogen, and the DRI system (1) and the supply device (7) are interconnected for supplying the DRI system (1) with natural gas and/or ammonia. Information about current states (Z1, Z4, Z6, Z7) of the sub-systems (1, 4, 6, 7); at least one desired production plan (PP) for the DRI system (1) for a forecast horizon (PH); a cost (B1) for electricity received via the electricity-supply network (2) which cost can at least be expected; and a cost (P2, B3) for the natural gas and/or ammonia which cost can at least be expected, is obtained by a controller (8). The controller (8) calculates operating modes (B1, B4, B6, B7) for the sub-systems (1, 4, 6, 7) for the forecast horizon (PH) and determines final states (Z1', Z4', Z6', Z7') that can be expected for the sub-systems (1, 4, 6, 7) on the basis of the current states (Z1, Z4, Z6, Z7) and the operating modes (B1, B4, B6, B7). The controller (8) varies the calculated operating modes (B1, B4, B6, B7) for the forecast horizon (PH) and varies, on the basis thereof, the final states (Z1', Z4', Z6', Z7') that can be expected so as to minimize a cost function (K). The costs for receiving electricity from the electricity-supply network (2) and for consuming natural gas and/or ammonia, and losses of hydrogen located in the hydrogen store (6) enter into the cost function (K). The operating modes (B1, B4, B6, B7) of the sub-systems (1, 4, 6, 7) and/or assessments of the expected final states (Z1', Z4', Z6', Z7') of the sub-systems (1, 4, 6, 7) which final states can be expected also enter into the cost function (K). The productivity of the DRI system (1) also enters into the cost function (K). The controller (8) operates the sub-systems (1, 4, 6, 7) according to the varied operating modes (B1, B4, B6, B7) at least for the beginning of the forecast horizon (PH).

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

A process for production of a TRIP steel strip that includes supplying a finished strip to a first cooling group of a cooling sector to force-cool the core of the finished strip to a second exit temperature (TA2) in the range 620° C. to 700° C., whereby, upon exiting the first cooling group, the core has a predominantly austenitic microstructure, transporting the finished strip to a third cooling group establishing, during the transport, a second cooling rate of the core of the finished strip in the range −25 K/s to 20 K/s to convert a first portion of the austenitic microstructure into a ferritic microstructure, force-cooling the core of the finished strip in the third cooling group to a third exit temperature (TA3) which is not more than the bainite starting temperature (BS) to at least partially convert a second portion of the austenite into a bainitic microstructure.

Classes IPC  ?

• C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
• B21B 1/26 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu par laminage à chaud
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
• C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
• C21D 6/00 - Traitement thermique des alliages ferreux
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium

Abrégé

The invention relates to a cast-rolling combination plant (10) which has a finish-rolling mill (55) and a cooling section (65), wherein: following the finish rolling of the finished strip (165), the finished strip (165) is fed to a first cooling group (166) in the cooling section (65), and a core of the finished strip (165) is force-cooled to a second exit temperature (TA2) in the first cooling group (166), the second exit temperature (TA2) being in the range of 620-700°C; when exiting the first cooling group (166), the core has a predominantly austenitic structure; the finished strip (165) is conveyed to a third cooling group (168) which is spaced from the first cooling group (166); while the finished strip (165) is being conveyed, the cooling rate of the core of the finished strip (165) changes to a second cooling rate; the second cooling rate of the core amounts to -25 K/s to 20 K/s, and, while the finished strip is being conveyed, a first portion of the austenitic structure in the finished strip (165) is converted into a ferritic structure; in the third cooling group (168), the core of the finished strip (165) is force-cooled to a third exit temperature (TA3) which is less than or equal to the bainite starting temperature (BS), so that a second portion of the austenite in the finished strip (165) is converted at least in part into a bainitic structure.

Classes IPC  ?

• C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium

Abrégé

The invention relates to a device (1) and a method for removing cooling lubricant during rolling of a rolled strip (100) in a cold rolling system having at least one roll stand. The device (1) comprises a squeezing roller (3) which is arranged between a first and a second roll rack (21, 21') of the roll stand. The squeezing roller (3) is mounted in a holder (2) to rotate about a rotational axis (R) and comprises a roller casing (15) and an internal electric rotary drive (5) which is designed as an internal rotor. By means of a positioning device (4), the squeezing roller (3) can be positioned against the rolled strip (100). An open- and closed-loop control device (30) actuates the rotary drive (5) synchronously to a current speed (v) of the rolled strip (100) behind the roll stand such that the roller casing (15) rolls on a surface (101) of the rolled strip (100) without slip and guides cooling lubricant from the rolled strip (100) in a lateral direction.

Classes IPC  ?

• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer

Abrégé

The present invention relates to the field of gas withdrawal of dust-laden gas in metallurgical installations, and to the preparation of the gas for the purpose of gas analysis. The invention relates to a gas-withdrawal device (1) for withdrawing a hot, dust-laden gas from a waste-gas line (2) of a metallurgical installation, in particular of an oxygen top-blowing converter or an electric-arc furnace. The hot, dust-laden gas contains ferromagnetic particulate material. A withdrawal tube (3) is arranged in the waste-gas line in such a way that a partial flow of the gas is withdrawn, wherein the following are located downstream of the withdrawal tube: - a cooling section (4), - a gas-purification section (6), - an analysis section (7a), - a gas-conveying unit (8), and - a return pipe (9). The invention also relates to a gas-analysis device comprising the gas-withdrawal device (1). The aim of this invention is to provide a device which makes it possible to measure the gas composition of a hot, dust-laden waste gas with low time delay, low measurement uncertainty and high reliability. This aim is achieved in that the gas-purification section 6 comprises a magnetic particle separator by means of which a corresponding proportion of the ferromagnetic particulate material is separated from the partial flow of the gas.

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant

Abrégé

A rail for a rail vehicle track that has a longitudinal extension (L), an apparatus for identifying the rail, and a method for identifying the rail. An identification marker is attached along the longitudinal extension (L) of the rail on an inner side and/or an outer side of the rail. The identification marker is composed of a plurality of symbols, each symbol having at least one partial length (TL) of 0.15 meters, and one identification marker having at least eight symbols. The rail makes it possible for the rail vehicle to identify the rail laid as track during travel in normal operation.

Classes IPC  ?

• B61L 23/04 - Dispositifs de commande, d'avertissement ou autres dispositifs de sécurité le long de la voie ou entre les véhicules ou les trains pour contrôler l'état mécanique de la voie

Abrégé

The present invention relates to a scrap clearing system (1) for a metal-strip production line (50), in particular a combined casting and rolling system, to a metal-strip production line (50) having a scrap clearing system (1) of this type, and to a method (100) for clearing scrap from a metal-strip production line (50). A cutting means (10) for cutting up a metal strip (2) fed to the scrap clearing system (1) and a strip catcher (20) located upstream of the cutting means (10) in a transport direction (T) of the metal strip (2) are provided. The strip catcher (20) has a pivotably mounted catching arm (21).

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
• B21C 47/26 - Dispositions particulières permettant un traitement simultané ou subséquent du matériau

Abrégé

A process that produces a microalloyed steel in an integrated casting-rolling plant having a continuous casting machine with a mold, a single- or multi-stand prerolling train, a finish-rolling train having a first stand group with at least one first finish-rolling stand and a second stand group having at least one stand cooler. A metallic melt is cast in the mold to obtain a partly solidified thin-slab strand, which is supported, deflected and cooled. The solidified thin-slab strand is rolled by the prerolling train to obtain a prerolled strip that is finish-rolled in the first stand group to obtain the finish-rolled strip, which is fed to the second stand group and force-cooled in the second stand group, the finish-rolled strip having a thickness that results in a cooling rate of the core of the finish-rolled strip in the second stand group greater than 20° C./s and less than 200° C./s.

Classes IPC  ?

• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
• C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium

Abrégé

A method for determining mechanical properties of a first rolled material by a hybrid model that includes production datasets relating to further rolled materials, a physical production model and a statistical data model. The production dataset relating to the first rolled material is used to determine a first mechanical dataset, a further production dataset and a metallurgical dataset and also a second mechanical dataset. An averaged normalized distance value for production datasets relating to the further rolled materials is determined that is used to ascertain the mechanical properties of the rolled material as a weighted average from the first and second mechanical datasets. When creating the hybrid model, the physical production model is used to determine further production datasets relating to the further rolled goods for training the statistical data model.

Classes IPC  ?

• G06N 20/00 - Apprentissage automatique
• B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle

Abrégé

A method for cooling a rolled product in a cooling section which is located upstream of a finishing train of a hot rolling mill. The cooling section includes a cooling device which can deliver a coolant flow of a coolant onto a rolled product surface of the rolled product. In the method, a coolant flow is delivered, by means of each cooling device and in each cooling section pass, onto the rolled product surface, which flow is set to a set value that is assigned to the relevant cooling device for the cooling section pass. The set values for a cooling section pass are determined in a simulation of the cooling section pass so that surface temperatures, determined in the simulation, of the rolled product surface upon leaving active regions of the cooling device do not exceed a minimum value for a surface temperature of the rolled product surface.

Classes IPC  ?

• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• B21B 37/76 - Commande du refroidissement sur la table de sortie

Abrégé

A flat metal rolling stock (2) extends transversely to a longitudinal direction (x), from a left to a right rolling stock edge (3, 4). By means of a first inductive heating device (5), the left rolling stock edge (3) is heated more intensely than the right rolling stock edge (4), and by means of a second inductive heating device (6), the right rolling stock edge (4) is heated more intensely than the left rolling stock edge (3). During the heating of the two rolling stock edges (3, 4), characteristic variables (K1, K2) are recorded which are characteristic of the heating of the respective rolling stock edge (3, 4). The characteristic variables (K1, K2) are fed to a control device (8), which determines a control command (P1, P2) based on the ratio (k) or the difference (δK) between the two characteristic variables (K1, K2). Based on the control command (P1, P2), a lateral position of at least one of the two heating devices (5, 6) relative to the rolling stock edge (3, 4) that is heated more intensely by the particular heating device (5, 6) is adjusted. The control command (P1, P2) is determined by the control device (8) in such a way that the ratio (k) of the two characteristic variables (K1, K2) is brought closer to a setpoint ratio (k*) or the difference (δK) between the two characteristic variables (K1, K2) is brought closer to a setpoint difference (δK*). The setpoint ratio (k*) or the setpoint difference (δK*) can be re-specified to the control device (8) directly or indirectly by an operator (15) at any time.

Classes IPC  ?

• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs

Abrégé

The invention relates to a method for heating, in particular reheating, an intermediate strip (2) when producing a flat strip, wherein the intermediate strip (2) is heated using induction module heads (12) of induction modules (10) of an induction furnace (1), in particular of a rolling mill, preferably of a steel strip production system, and the induction module heads (12) are mechanically positioned according to at least one current parameter of the intermediate strip (2) at/in the induction furnace (1).

Classes IPC  ?

• C21D 1/10 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire par induction électrique
• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• C21D 1/42 - Chauffage par induction
• C21D 1/52 - Méthodes de chauffage à la flamme
• F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
• F27B 9/36 - Aménagement des dispositifs de chauffage
• F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
• F27D 19/00 - Aménagement des dispositifs de commande
• F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

A lining machine that includes a base frame, a rail group, a feed apparatus, a lift apparatus and a working platform, the rail group being mechanically fastened to the base frame and the rail group having at least one rail arrangement. The lift apparatus has a roller carriage and a lift unit located on the roller carriage, the roller carriage being provided on the rail arrangement so as to be movable between an installation position and an operating position. The lift unit is connected to the working platform and is designed to lower the working platform into the converter via the converter opening, and the feed apparatus has a roller conveyor, one end of which ends at the lift apparatus.

Classes IPC  ?

• C21C 5/44 - Garnissage réfractaire
• F27D 1/00 - CarcassesGarnissagesParoisVoûtes
• F27D 1/16 - Confection ou réparation des garnissages

Abrégé

Energy-efficient production of a ferritic hot-rolled strip (6) in an integrated casting-rolling plant (1), which modifies the known processes for producing a ferritic hot-rolled strip (6) in an integrated casting-rolling plant (1) so that the ferritic hot-rolled strip (6) can be produced significantly more energy-efficiently but nevertheless has good metallurgical properties and a good surface quality.

Classes IPC  ?

• C21D 9/60 - Fours continus pour bandes ou fils métalliques avec chauffage par induction
• C21D 1/42 - Chauffage par induction
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C23G 3/02 - Appareils pour nettoyer ou décaper les matériaux métalliques pour le nettoyage des fils, rubans, filaments métalliques en continu

Abrégé

The invention relates to a method for introducing carbon into direct reduced iron (DRI) (20), wherein at least one solid carbon carrier is added to the DRI (20), and the DRI (20) is hardened once the solid carbon carrier has been added to the DRI (20).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C21B 13/12 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs dans des fours électriques

Abrégé

The invention relates to a method for melting DRI (20, 90) consisting at least partly of HBI (40) and/or HCI (110) using a melting process, wherein the HBI (40) and/or the HCI (110) is comminuted before being supplied to the melting process, and HBI (40) or HCI (110) fragments obtained during the comminuting process are supplied to the melting process.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C21B 13/14 - Procédés à plusieurs phases
• C21C 5/28 - Fabrication d'acier dans des convertisseurs
• C21C 5/52 - Fabrication de l'acier au four électrique
• C22B 1/00 - Traitement préliminaire de minerais ou de débris ou déchets métalliques
• F27B 3/08 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chauffage électrique, p. ex. fours à arc électrique, avec ou sans une autre source de chaleur
• F27B 3/18 - Aménagement des dispositifs de chargement
• F27D 3/00 - ChargementDéchargementManutention des charges

Abrégé

The invention relates to a method for producing molten iron (20). The reduction of iron oxide-containing material (50) in order to form a metallized product (30) is carried out using a reduction gas consisting at least largely of hydrogen H2, and a top gas (60) is accumulated during the reduction process, wherein - optionally after a treatment of the top gas (60) - a first sub-quantity (100) of the top gas (60) is combined with reducing reduction gas components (110) in order to provide reduction gas, and a second sub-quantity (120) of the top gas (60), as a discharged gas, is subjected to a gas separation process into a hydrogen-enriched gas flow (140) and a hydrogen-depleted tail gas flow (150). The metallized product (30) of the reduction process is combined with carbon carriers so as to be melted in a melting device (10) in order to form a molten iron (20), and a smelting exhaust gas (180) is accumulated. In the process, at least a sub-quantity of the tail gas flow (150) is combined with at least a sub-quantity of the smelting exhaust gas (180), and a tail gas mixture (190) is produced. At least a sub-quantity of the tail gas mixture (190) is supplied to a thermal use (200).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

A planar rolled stock material (2) made of metal is heated in an induction furnace (1). The rolled stock (2) passes through the induction furnace (1) in a longitudinal direction (x). It extends transversely thereto from a first to a second rolled stock edge (3, 4). The induction furnace (1) has a plurality of module pairs (5) which, viewed in the longitudinal direction (x), follow one another sequentially and each have a first and a second induction module (6, 7). The induction modules (6, 7), as viewed in the transverse direction (y), are positioned at a respective initial position (p1*, p2*), so that the first induction modules (6) are arranged offset towards the first rolled stock edge (3) and the second induction modules (7) are arranged offset towards the second rolled stock edge (4). The induction modules (6, 7) are each supplied with electrical power via their own power supply device (8), which is assigned in a proprietary manner to the respective induction module (6, 7). A respective electrical target variable (I1*, I2*) is defined for each induction module (6, 7). It is monitored whether actual variables (I1, I2), with which the induction modules (6, 7) are operated, correspond with their respective target variables (I1*, I2*). In the event that only one actual variable (I11), with which one of the first induction modules (61) is operated, has a reduced value compared with its corresponding target variable (I11*), the target variables (I12* to I15*) for the remaining first induction modules (62 to 65) are increased, while maintaining the operation of all the second induction modules (71 to 75), so that any reduced heating of the rolled stock (2) caused by the reduced actual variable (I11) is compensated as much as possible. This applies to both those first induction modules that are arranged upstream of the first induction module (61) for which the actual variable (I11) has a reduced value compared to its corresponding target variable (I11*), as well as to the first induction modules (62 to 65) which are arranged downstream of that first induction module (61) for which the actual variable (I11) has a reduced value compared to its corresponding target variable (I11*).

Classes IPC  ?

• F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
• F27B 9/36 - Aménagement des dispositifs de chauffage
• F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
• F27D 19/00 - Aménagement des dispositifs de commande
• F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
• F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• H05B 6/06 - Commande, p. ex. de la température, de la puissance
• B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs

Abrégé

The invention relates to a reel system (45) for a combined casting-rolling system (10) and a method for operating the reel system (45), wherein the reel system (45) comprises at least one first mandrel (90), a first coil unit (95), a first strip feed (100), a second strip feed (105), a strip store (110) and a drive unit (115), wherein the drive unit (115) has a component carrier (150) and a drive motor (145) that is connected to the component carrier (150), wherein the first coil unit (95) and the second strip feed (105) are secured to the component carrier (150) and the drive motor (145) is designed to rotate the component carrier (150), the first coil unit (95) and the second strip feed (105) about the winding axis (140), wherein the strip store (110) is arranged radially on the outside of the component carrier (150) and the first coil unit (95), wherein the finished rolled strip (80) is supplied via the first strip feed (100), wherein the strip store (110) is designed to wind the finished rolled strip (80) supplied via the first strip feed (100) to form an intermediate ring (305), wherein the second strip feed (105) is designed to unwind the finished rolled strip (80) wound into the intermediate ring (305) radially inside the intermediate ring (305) and to supply same to the first coil unit (95), and wherein the first coil unit (95) reels the finished rolled strip (80) on the first mandrel (90) to form a coil (85).

Classes IPC  ?

• B21C 47/06 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile avec des rouleaux ou des chevilles d'appui ou des moyens équivalents maintenant le matériau sur la bobine ou le tambour
• B21C 47/24 - Manipulation des matériaux enroulés, pour les transférer vers les appareils à enrouler, les sortir de ces appareils, les mettre en position de fonctionnement dans ces appareils, ou les retirer de cette positionMoyens pour empêcher le déroulement pendant le transport
• B21C 49/00 - Dispositifs pour accumuler temporairement les matériaux

Abrégé

A device and a method for depositing undissolved materials, in particular undissolved silicon compounds, from a pickling fluid in a pickling plant. A pickling circuit of the pickling plant has a pickling tank for pickling metal strips, a return line between the pickling tank and a circuit tank, a circulation pump for circulating a main volume flow of pickling fluid from the pickling tank, and a heating device arranged in a pressure line between the circuit tank and the pickling tank. The device includes a flocculation device for introducing at least one flocculant into the main volume flow, and a deposition device in the circuit tank and preferably designed as an inclined clarifying device, for the sedimentation of undissolved materials directly from the main volume flow. When pickling silicon-containing steel strips (electrical steel strips), an at least two-stage flocculation can be carried out using two or more mixing zone containers.

Classes IPC  ?

• C23G 1/36 - Régénération des liqueurs de décapage usées

Abrégé

An optimization method in which a computer ascertains expected values (E1) for actual variables (I1) of a technical process based on values (R) for target variables (Z1) of the technical process that attain the values (R) as far as possible. From data records (D), the computer provisionally selects a number (n1) of records (D) in which the variables (I1) display a minimum distance from the values (E1). The computer then ascertains expected values (E2) for the actual variables (I2) based on the values (R) and the values (E1). From the provisionally selected data records (D), the computer selects a predetermined second number (n2) of data records (D) in which the variables (I1, I2) display a minimum distance from the values (E1, E2). The computer ascertains set values (S) for the variables (Z2) for a yet-to-be-executed cycle to attain variables (Z1) as close to possible to the values (R).

Classes IPC  ?

• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]

Abrégé

The present invention relates to a method (100) and to a system (1) for winding a continuously produced metal band (2). The metal band (2) is guided (S1) via a guide pulley (11), positioned in a first pulley position (P1) and belonging to a pair (10) of guide pulleys, along a first transport path (22) to a first reel (20) and divided (S3a, S4b) upstream of the pair (10) of guide pulleys. In addition, the guide pulley (11) of the pair (10) of guide pulleys is repositioned (S3b, S4a) into a second pulley position (P2), in which the metal band (2) is guided (S5a, S5b) via the guide pulley (11) along a second transport path (32) to at least one second reel (30). According to the invention, the repositioning of the guide pulley (11) depending on a thickness of the metal band (2) and/or a transport speed of the metal band (2) is undertaken in terms of time either before or after the dividing of the metal band (2).

Classes IPC  ?

• B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
• B21C 47/34 - Dispositifs d'alimentation ou de guidage non spécialement adaptés à un type particulier d'appareil
• B21C 47/24 - Manipulation des matériaux enroulés, pour les transférer vers les appareils à enrouler, les sortir de ces appareils, les mettre en position de fonctionnement dans ces appareils, ou les retirer de cette positionMoyens pour empêcher le déroulement pendant le transport

Abrégé

A strip (2) of steel is rolled in a rolling stand (3) of a rolling mill (1). During the rolling of successively rolled sections (10) of the strip (2), values are measured that are characteristic of the rolling force (FW) and/or the rolling moment (M) occurring. A gradient (G) of the rolling force (FW) and/or the rolling moment (M) relative to the temperature (T) is determined by utilising the rolling forces (FW) and/or rolling moments (M) that occur and changes (δT) in the associated temperatures (T) of the sections (10) of the strip (2). The gradient (G) is used to determine whether or not a phase transition from an austenitic to a ferritic microstructure occurs in the sections (10) of the strip (2) during rolling in the rolling stand (3).

Classes IPC  ?

• B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
• B21B 38/06 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la tension ou la compression

Abrégé

The invention relates to a coil-transporting carriage with adjustable retaining arms and to a method for the reliable handling of metal coils of small external diameter, or of sleeves, on a coiler mandrel. The coil-transporting carriage has a vertically displaceable coil saddle for accommodating a coil or a sleeve, also has two retaining arms for stabilizing the coil or the sleeve, the retaining arms being arranged opposite one another on the coil saddle and being pivotable by means of rotary drives, and additionally has a second drive unit for moving the coil-transporting carriage. For pulling off from a coiler mandrel, the coil saddle is positioned against a coil located on the coiler mandrel and the retaining arms are pivoted onto the coil. For pushing onto a coiler mandrel, first a sleeve is placed on the coil saddle of the coil-transporting carriage and is thereby guided by the retaining arms.

Classes IPC  ?

• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide
• B21C 47/24 - Manipulation des matériaux enroulés, pour les transférer vers les appareils à enrouler, les sortir de ces appareils, les mettre en position de fonctionnement dans ces appareils, ou les retirer de cette positionMoyens pour empêcher le déroulement pendant le transport

Abrégé

The invention relates to a method for producing an iron melt (80) from iron-oxide-containing material (30), wherein a reduction gas (90) containing at least hydrogen is fed to a reduction reactor (20), containing the iron-oxide-containing material (30), for prereduction. The iron-oxide-containing material (30) comprises at least 35 mass% sinter, and the reduction gas (90) comprises at least 60 vol.% hydrogen H2. Solid, prereduced product obtained in the prereduction step is fed from the reduction reactor (20) into a melting device (40) and is subjected there to a treatment comprising at least the following steps: - introducing energy to generate a melt, said energy being introduced substantially in the form of electricity, and - reducing at least some of the iron oxides contained in the solid prereduced product. The treatment can also include setting a carbon content in the melt. A reduction reactor (20) for prereduction is embodied as a reduction shaft which has a feed region (A) for feeding in the iron-oxide-containing material (30); - a removal region (B) for removing the solid prereduced product obtained in the prereduction step; and - an introduction region (C) for introducing reduction gas (90), wherein the reduction shaft is conical below the introduction region (C), with a wall angle to the vertical of less than 20°, and tapers from the introduction region to the removal region (B). A system for carrying out the method according to the invention comprises: - a reduction reactor (20) for direct reduction of iron-oxide-containing material; - a melting device (60); and - a feed device (50) for feeding solid product obtained by the direct reduction process into the melting device (60).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C21B 13/14 - Procédés à plusieurs phases

Produits et services

Simulation software; simulation software for simulating industrial systems. Development, installation and maintenance of simulation software for simulating industrial systems; computer software consulting for simulation software for simulating industrial systems; software as a service [SaaS] with simulation software for simulating industrial systems; customer-specific software adaptation of simulation software for the simulation of industrial systems.

Abrégé

A combined casting and rolling installation that produces hot-rolled strip with a final thickness<1.2 mm, and includes a first continuous casting installation and a second continuous casting installation, each producing slabs from liquid steel; a slab manipulator that conveys the slabs into a walking beam furnace that conveys the slabs into a rolling installation and heats the slabs to rolling temperature. The rolling installation includes a rough rolling mill forming rough-rolled strips from the heated slabs; a coil box forming a coil from the rough-rolled strip and unwinding the rough-rolled strip; a joining device forming an endless rough-rolled strip by connecting its ends without filler material; a multi-stand finishing rolling mill finish-rolling the endless rough-rolled strip to form a finished strip with the final thickness; a cooling section forming the hot-rolled strip; and a plurality of coiling devices coiling the hot-rolled strip.

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B21B 1/04 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer de grosses pièces, p. ex. des lingots, brames, billettes dont la section droite est sans importance selon un processus continu
• C21D 6/00 - Traitement thermique des alliages ferreux
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques

Abrégé

A process for steel production that includes: production of sponge iron from iron oxide-containing starting material by direct reduction with reduction gas, wherein the reduction gas has at least 20% by volume of hydrogen H2, and production of an iron melt having a carbon content of 1-5% by mass from the sponge iron. A process for steel production that includes: production of sponge iron from iron oxide-containing starting material by direct reduction with reduction gas, wherein the reduction gas has at least 20% by volume of hydrogen H2, and production of an iron melt having a carbon content of 1-5% by mass from the sponge iron. Sponge iron is subjected to a treatment that includes: energy input and addition of additives to produce a melt and a slag, wherein the energy input is effected substantially from electricity and wherein the slag has a basicity B2 of less than 1.3, preferably less than 1.25, particularly preferably less than 1.2, adjustment of the carbon content in the melt, reduction of at least a sub-amount of the iron oxides present in the sponge iron A process for steel production that includes: production of sponge iron from iron oxide-containing starting material by direct reduction with reduction gas, wherein the reduction gas has at least 20% by volume of hydrogen H2, and production of an iron melt having a carbon content of 1-5% by mass from the sponge iron. Sponge iron is subjected to a treatment that includes: energy input and addition of additives to produce a melt and a slag, wherein the energy input is effected substantially from electricity and wherein the slag has a basicity B2 of less than 1.3, preferably less than 1.25, particularly preferably less than 1.2, adjustment of the carbon content in the melt, reduction of at least a sub-amount of the iron oxides present in the sponge iron The slag is separated during and/or after the treatment.

Classes IPC  ?

• C21B 13/14 - Procédés à plusieurs phases
• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C21C 5/52 - Fabrication de l'acier au four électrique

Abrégé

Strand guiding roller (1) comprising, for each bearing, a bearing carrier (60) which is arranged between a shaft portion surrounded by the roller sleeve (30) and the roller sleeve (30). Between the bearing carrier (60) and the roller sleeve (30) there is at least one channel (70), and between the bearing carrier (60) and the shaft (20) there is at least one channel (80). There is at least one channel (90) which connects the cavity (21) in the shaft (20) to the channel (80) between the bearing carrier (60) and the shaft (20). There is at least one channel which connects the cavity (21) in the shaft (20) or the channel (80) between the bearing carrier (60) and the shaft (20) to the channel between the bearing carrier (60) and the roller sleeve (30). There is at least one channel (110) in the bearing carrier (60) which connects the channel (80) between the bearing carrier (60) and the shaft (20) and/or the channel (70) between the bearing carrier (60) and the roller sleeve (30) to the cooling channel (40) for receiving a cooling fluid for cooling the roller sleeve (30).

Classes IPC  ?

• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• F16C 13/02 - Paliers
• F16C 37/00 - Refroidissement des paliers

Abrégé

The invention is in the field of metallurgical installations, specifically in the field of metallurgical vessels for metals. The present invention addresses the problem of providing a simple type of construction for the tapping device in which liquid metal is prevented from solidifying in the tapping channel. The problem is solved by a metallurgical vessel (1) with a tapping device (10) for the controlled tapping of liquid metal which is located in a lower part of the vessel. A partial region of a vessel wall (3) has, from an inner side (3a) of the vessel wall (3) to an outer side (3b) of the vessel wall (3), an outflow channel (4) which opens out into a tapping channel (11) of the tapping device (10). Measured from an edge where the vessel wall (3) and the vessel bottom (2) intersect, a lower edge (5) of the outflow channel (4) on the inner side (3a) of the vessel wall (3) is at a height (H) of 50-300 mm. At least in a partial region of the vessel wall (3), the outflow channel (4) extends through substantially at an angle of 90° to the vessel wall (3).

Classes IPC  ?

• F27B 3/19 - Aménagement des dispositifs de déchargement
• F27B 3/20 - Aménagement des dispositifs de chauffage
• F27D 3/15 - Équipement de piquéeÉquipement pour l'élimination du laitier

Abrégé

The invention relates to a method for determining a fill level height (h1) of a metal melt in a mould (4) of a continuous casting machine by means of a virtual fill level sensor, wherein the metal melt in the mould forms a mould level (5) with the fill level height (h1), and to a virtual fill level sensor suitable therefor. The problem addressed by the invention is that of finding a method for determining the fill level in the mould (4) of the continuous casting machine, so that the start and end of casting can be carried out fully automatically and without using a radiometric sensor. The technical problem is solved by a method according to claim 1.

Classes IPC  ?

• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement
• B22D 11/18 - Commande ou régulation des opérations ou du fonctionnement de la coulée
• B22D 11/20 - Commande ou régulation des opérations ou du fonctionnement du retrait des barres coulées

Produits et services

Downloadable simulation software for simulating industrial systems Development, installation and maintenance of simulation software for simulating industrial systems; Computer software consulting for simulation software for simulating industrial systems; Software as a Service (SaaS) services featuring simulation software for simulating industrial systems; customer-specific software adaptation in the nature of custom design of computer software of simulation software for the simulation of industrial systems

Abrégé

The present invention relates to a method and a computer system for controlling a process of a metallurgical plant, the method comprising two phases, wherein in a first phase a data driven (regression) model is trained with offline process data, and wherein in a second phase online measured data are input to the trained data driven (regression) model, which outputs optimized production parameters. At least one process variable of a process of the metallurgical plant is predicted by means of a data driven model (1) for the prediction of the at least one process variable.

Classes IPC  ?

• G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs

Abrégé

The invention relates to a method for reducing a metal oxide-containing material. A reduction gas which at least contains hydrogen is supplied to a reduction reactor (3), and a hydrogen-containing top gas is discharged from the reduction reactor (3). A sub-quantity of the top gas is supplied to gas burners (6), which are used in the preparation of the reduction gas, as a component of the fuel gas. If the content of hydrogen in the reduction gas and/or in the top gas increases, the content of water vapor in the fuel gas is increased. A device for this purpose comprises a reduction reactor (3), a top gas discharge (5) for discharging a top gas out of the reduction reactor (3), a preparation system (7) which comprises at least one gas burner (6) for preparing reduction gas, and a supply line (8) for supplying a sub-quantity of the top gas to the at least one gas burner (6) as a fuel gas component. The device is characterized by also comprising at least one member of the group consisting of the two members a) at least one device (9) for determining the water vapor content in the reduction gas and/or in the top gas and b) a device (9a) for ascertaining an increase of the proportion of hydrogen in the reduction gas and/or in the top gas as well as a device (10) for controlling and/or regulating the water vapor content in the fuel gas using the hydrogen content in the reduction gas and/or in the top gas.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• F27D 19/00 - Aménagement des dispositifs de commande

Abrégé

The invention relates to a dissipator (1) comprising a hydraulic inductor (21), a hydraulic resistor (22) and a hydraulic capacitor (23) for damping vibrations in a roll stand for producing flat metal rolled material. The dissipator (1) has an intermediate piece (20) with a first hydraulic interface (24) for directly hydraulically-mechanically linking to an adjusting cylinder (2) of the roll stand. Via a second hydraulic interface (26), a valve block (6) with a control valve (11) for the adjusting cylinder (2) can be directly hydraulically-mechanically linked to the dissipator (2). The intermediate piece (20) can be formed as a rigid block, to which the hydraulic resistor (22) and the hydraulic capacitor (23) are detachably fluidically connected. The hydraulic inductor (21) is introduced into the block, preferably in the form of a tubular cavity and fluidically connected to the first and second hydraulic interfaces (24, 26).

Classes IPC  ?

• B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés

Abrégé

33 is used. The reducing gas is supplied to a reduction reactor (2) containing the metal oxide-containing material, and a top gas is discharged from the reduction reactor. At least one sub-quantity of the top gas is used as components in the preparation of the reducing gas, optionally after the top gas is prepared. A device (1) for the reduction of the metal oxide-containing material (3) comprises a reduction reactor (2), a top gas discharge line (4) for discharging top gas out of the reduction reactor (2), at least one supply line for an ammonia contribution (7), a preparation system (6) for preparing the reducing gas, at least one supply line for the ammonia contribution (7) leading into the preparation system, and a feed line (8) for feeding the reducing gas and/or a precursor of the reducing gas to the reduction reactor (2), wherein the top gas discharge line (5) leads into the preparation system (6).

Classes IPC  ?

• C21B 5/06 - Utilisation des gaz de sortie des hauts fourneaux
• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• C21B 13/02 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs dans des fours à cuve

Abrégé

The invention relates to a dispensing device (1) for intermittently dispensing a cooling medium (6) onto a cast strand (2) in a continuous casting installation (3). The dispensing device (1) comprises a housing (4) with at least one inlet opening (5) for letting the cooling medium (6) into the housing (4) and with a dispensing opening (7) for dispensing the cooling medium (6) out of the housing (4), and comprises a switching valve (8) which is arranged in the housing (4) and which is designed to open and close the dispensing opening (7). The switching valve (8) has a sleeve (9) which is filled with a working fluid (7) and which, on the dispensing opening side, is closed with a closure (11) in a fluid-tight manner. The closure (11) comprises a switching element (12) which, by controlling a pressure in the working fluid (10), is displaceable relative to the sleeve (9) into a closing position in which the switching element (12) closes the dispensing opening (7).

Classes IPC  ?

• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B05B 1/30 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour commander un débit, p. ex. à l'aide de conduits de section réglable
• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules

Abrégé

A casting-rolling integrated plant that is capable of producing, from a steel melt, in a cost-effective manner and with high productivity, a hot-rolled finished strip having a thickness of ≤0.6 mm, an excellent flatness, and an excellent profile by dividing the thickness reduction into at least three stages (roughing, intermediate and finishing train), measuring the actual profile after the roughing, intermediate and finishing train, and equipping the stands in the roughing, intermediate and finishing train with actuators for influencing the strip profile and/or the strip flatness.

Classes IPC  ?

• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement
• B21B 37/28 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles
• B21B 13/22 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires pour laminer du métal immédiatement après la coulée continue
• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue

Abrégé

The invention relates to the technical field of combined casting-rolling installation for producing hot-rolled finished strip. The aim of the invention is to modify an existing combined casting-rolling installation and a method for producing a hot-rolled finished strip in such a way that the strand leaves the horizontal strand guide of the continuous casting installation at a high strand temperature even at low casting speeds, but without the segments or the strand guide rolls overheating. The horizontal strand guide (6) of the continuous casting installation has at least one, preferably multiple, dry-castable dry-cast segments (20), the dry-cast segments (20) each having a plurality of strand guide rolls, arranged one behind the other in the transport direction (T), above and below the strand (41), the strand guide rolls of the dry-cast segments (20) having, on the inside of the lateral surface guiding the strand (41), at least one decentralised axial cooling channel for cooling with a liquid coolant so that the strand guide rollers do not reach inadmissibly high temperatures during a casting sequence in dry operation (32), wherein each dry-cast segment (20) has cooling nozzles for cooling the upper and lower side of the strand (41) and at least one valve for adjusting the quantity of coolant to the cooling nozzles, and wherein a dry-cast segment (20) can be selectively operated either 1) in dry operation (32), i.e. without spraying a liquid or liquid-gas coolant onto the strand (41), or 2) in wet operation , i.e. by spraying a liquid or liquid-gas coolant onto the strand (41).

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 37/76 - Commande du refroidissement sur la table de sortie
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
• B21B 45/04 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour décaper, p. ex. décalaminer
• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules
• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs

Abrégé

A method for direct reduction of metal oxide-containing starting materials to produce metallized material by contact with hot reduction gas in a reduction unit (1), wherein the product of the direct reduction is discharged from the reduction unit (1) by means of a product discharge device (3) which is flushed with seal gas and from which vent gas is drawn and subsequently de-dusted. The vent gas is de-dusted dry and the content of at least one gaseous constituent is reduced by catalytic conversion or combustion. Also, a device for carrying out the method is disclosed.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs
• F27B 1/21 - Aménagement des dispositifs de déchargement
• F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires

Abrégé

A method and an installation for inductively heating flat objects that are transported in a feed direction. The installation has at least one transverse field inductor device which extends transversely to the feed direction over the width of the flat object and has a longitudinal axis running parallel to the transverse axis of the flat object. The transverse field inductor device is positioned such that the longitudinal axis extends in a vertical plane obliquely with respect to the transverse axis of the flat object. With the method it is possible to vary the distance between the flat object and the inductor device and thus the temperature distribution over the transverse profile of the flat object so that the flat object is heated homogeneously.

Classes IPC  ?

• B21B 37/44 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant le chauffage, la lubrification ou le refroidissement par jets d'eau, du produit
• B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies

Abrégé

The invention relates to a finishing train for finish rolling hot strip. It is the object of the invention to modify an existing finishing train in such a way that the surface quality of the hot strip produced is improved without, however, significantly increasing the use of energy during production. This is intended to enable the thin hot strip produced to be used even for applications with high demands on surface quality. This object is achieved by a cleaning nozzle which cleans the upper side of the exit table, thus ensuring that scale and/or rolling dust are/is removed from the exit table.

Classes IPC  ?

• B21B 13/22 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires pour laminer du métal immédiatement après la coulée continue
• B21B 28/02 - Maintenance des cylindres en état de fonctionnement, p. ex. remise en état
• B21B 27/10 - Lubrification, refroidissement ou chauffage des cylindres extérieurement
• B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
• B21B 1/26 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu par laminage à chaud
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs

Produits et services

Metal cutting machines for the iron and steel industry; Flame cutting machines for the iron and steel industry; Thermic lances for the iron and steel industry. Installation, maintenance and repair of the following goods: Metal cutting machines for the iron and steel industry, flame cutting machines for the iron and steel industry and thermic lances for the iron and steel industry. Engineering services in relation to the following goods: Metal cutting machines for the iron and steel industry, flame cutting machines for the iron and steel industry and thermic lances for the iron and steel industry; Conducting technical project studies, in relation to the following fields: Installations for metal cutting machines, for flame cutting machines and for thermic lances for the iron and steel industry; Industrial design, in relation to the following goods: Metal cutting machines for the iron and steel industry, flame cutting machines for the iron and steel industry and thermic lances for the iron and steel industry.

Abrégé

The invention relates to a die (1) for a continuous casting installation. The die (1) comprises: a movably mounted frame (2) having a first subframe (2.1) and a second subframe (2.2); a first broad-side insert (3) which is positioned on the first subframe (2.1); and a second broad-side insert (4) which is positioned on the second subframe (2.2). Narrow sides (7, 8) which each have a narrow-side copper plate (9) and which abut the two broad-side inserts (3, 4) are positioned between the two broad-side inserts (3, 4). The die (1) also comprises: a clamping device (11) which is designed to exert, on the subframes (2.1, 2.2), a clamping force that acts between the subframes (2.1, 2.2); and an oscillation drive (13) which is designed to make the frame (2) oscillate in and counter to a horizontal width direction (H) relative to the narrow sides (7, 8). A spring band assembly (17) which guides the subframes (2.1, 2.2) is positioned on each subframe (2.1, 2.2) on sides which are opposite one another in the width direction (H).

Classes IPC  ?

• B22D 11/053 - Moyens pour faire osciller les moules
• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement

Abrégé

The invention relates to a conveying device (1) for conveying metal strip coils (2). The conveying device (1) comprises: at least one coil carrier (3) which is designed to carry a metal strip coil (2); two conveying stations (4, 5) which are arranged at different heights and which are each designed to receive one coil carrier (3); and a conveyor track (6) which extends between the conveying stations (4, 5) and has a conveyor drive (7) by means of which a coil carrier (3) can be conveyed on the conveyor track (6) between the conveying stations (4, 5). Each conveying station (4, 5) is tiltable between a first end position in which the conveying station (4, 5) is oriented horizontally and a second end position, wherein the conveying station (4, 5) has an inclination in the second end position which corresponds to the inclination of the conveyor track (6) and adjoins the conveyor track (6) so that a coil carrier (3) can be conveyed by means of the conveyor drive (7) from the conveyor track (6) into the conveying station (4, 5) and from the conveying station (4, 5) onto the conveyor track (6).

Classes IPC  ?

• B65G 19/02 - Transporteurs comportant un impulseur ou une série d'impulseurs portés par un élément de traction sans fin et disposés de façon à déplacer objets ou matériaux sur une surface porteuse ou sur un matériau de base, p. ex. transporteurs sans fin à raclettes pour objets, p. ex. des réceptacles
• B65G 47/57 - Dispositifs pour transférer objets ou matériaux entre transporteurs, p. ex. pour décharger ou alimenter vers des sections de transporteurs à chaîne inclinés ou verticaux ou à partir de ces sections pour objets

Abrégé

The invention relates to a method for producing a dual-phase steel strip (245), to a dual-phase steel strip (245) and to a combined casting and rolling system (10) for producing the dual-phase steel strip (245), wherein the combined casting and rolling system (10) has a finish-rolling train (55) having a first stand group (135) which comprises at least one first finish-rolling stand (145), and having a second stand group (140) which comprises at least one stand cooler (155), the system also having a cooling section (65) which comprises a first cooling section group (236) and a second cooling section group (240), wherein, immediately following the finish-rolling process of a finish-rolled strip (165), the finish-rolled strip (165) is fed to the second stand group (140), and the finish-rolled strip (165) is force-cooled to a second exit temperature (TA2) in the second stand group (140) in such a way that the finish-rolled strip (165), upon exiting the second stand group (140), has a predominantly austenitic structure, wherein force-cooling of the finish-rolled strip (165) is deactivated in the first cooling section group (236), wherein a ferritic and austenitic structure forms in the finish-rolled strip (165) during transport, and wherein the finish-rolled strip (165) is force-cooled to a fourth exit temperature (TA4) in the second cooling section group (240) in such a way that, upon exiting, the finish-rolled strip (165) has a dual-phase structure composed of martensite and ferrite.

Classes IPC  ?

• C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
• C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
• B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
• B21B 13/00 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires
• C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
• C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
• C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques

Abrégé

In a work roll balance force setting method of a rolling mill, a kiss roll load Pk, a rolling load Pr, and rolling torque Tr of work rolls 610 and 611 in relation to a work roll angle θx of the tip position of a rolled material 5 between the start of biting of the rolled material 5 and completion of the biting are determined by using a mill longitudinal rigidity coefficient K and a rolling condition. Thereafter, the traction coefficient μrt between the work rolls 610 and 611 and intermediate rolls 620 and 621, and a maximum value μrtmax of μrt in relation to θx in a state in which hypothetical work roll balance force Pb is applied are determined from a sum P of Pk, Pr, and Pb, and Tr between the start of biting of the rolled material 5 and completion of the biting. Thereafter, a tolerated value μrtcr of μrt is compared with μrtmax, and work roll balance force at the start of biting of the rolled material 5 is reset to a value which is equal to or larger than a value that is required when μrt assumes the maximum value μrtmax, and equal to or smaller than a value that is a limit based on a constraint in terms of strength of the rolling mill, in a case where μrtcr is equal to or larger than μrtmax.

Classes IPC  ?

• B21B 35/00 - Entraînement des laminoirs
• B21B 39/06 - Introduction du matériau dans le creux par poussée ou à force

Abrégé

A dynamic production planning method for a continuous casting plant for casting a strand with a production system which has a predefined production plan, which method includes comparing target production parameters with actual production parameters. If the actual production parameters deviate from the target production parameters, a strand image is created on the basis of actual production parameters. With the aid of the calculated strand image, a check is carried out within the predefined production plan and, if possible, a new production plan is created. If no solution can be found from the predefined production plan, the strand image is transmitted to a production planning system. The production planning system creates a new production plan from all available orders on the basis of a predefined optimization criterion. The new production plan is subsequently transmitted to the production system.

Classes IPC  ?

• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement
• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]
• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées

Abrégé

The invention relates to a pedestal bearing (135) and a production plant (10) with a pedestal bearing (135) of this type, to a pedestal bearing (125) for mounting a slowly running body in a production plant (10), in particular a continuous casting installation, for producing a hot-rolled material (15), wherein the pedestal bearing (135) has a pedestal bearing housing (145) with a bearing seat (175), a cooling duct system (261) with at least one cooling duct (325), and an anti-friction bearing (230) which is arranged in the bearing seat (175) and has an anti-friction bearing outer ring (280), wherein the bearing seat (175) has a first inner circumferential side (170) which runs around the rotational axis (130), wherein the pedestal bearing housing (145) has a first contact surface (146), wherein the pedestal bearing housing (145) is configured to transmit a bearing force (F) from the anti-friction bearing outer ring (280) to the first contact surface (146), wherein the cooling duct (325) extends in the circumferential direction around the rotational axis (130) and is configured to conduct a coolant (410), which can be fed into the cooling duct (225), in order to cool the anti-friction bearing (230) and/or the pedestal bearing housing (145), wherein the first inner circumferential side (170) of the bearing seat (175) of the pedestal bearing housing (145) delimits the cooling duct (225) radially on the outside and the anti-friction bearing outer ring (280) delimits the cooling duct (225) radially on the inside.

Classes IPC  ?

• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
• F16C 33/58 - Chemins de roulementBagues de roulement
• F16C 37/00 - Refroidissement des paliers

Abrégé

The invention relates to a pedestal bearing (135) and a production plant (10) with a pedestal bearing (135) of this type, to a pedestal bearing (125) for mounting a slowly running body in a production plant (10), in particular a continuous casting installation, for producing a hot-rolled material (15), wherein the pedestal bearing (135) has a pedestal bearing housing (145) with a bearing seat (175), a cooling duct system (261) with at least one cooling duct (325), and an anti-friction bearing (230) which is arranged in the bearing seat (175) and has an anti-friction bearing outer ring (280), wherein the bearing seat (175) has a first inner circumferential side (170) which runs around the rotational axis (130), wherein the pedestal bearing housing (145) has a first contact surface (146), wherein the pedestal bearing housing (145) is configured to transmit a bearing force (F) from the anti-friction bearing outer ring (280) to the first contact surface (146), wherein the cooling duct (325) extends in the circumferential direction around the rotational axis (130) and is configured to conduct a coolant (410), which can be fed into the cooling duct (225), in order to cool the anti-friction bearing (230) and/or the pedestal bearing housing (145), wherein the first inner circumferential side (170) of the bearing seat (175) of the pedestal bearing housing (145) delimits the cooling duct (225) radially on the outside and the anti-friction bearing outer ring (280) delimits the cooling duct (225) radially on the inside.

Classes IPC  ?

• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• F16C 37/00 - Refroidissement des paliers
• F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
• F16C 33/58 - Chemins de roulementBagues de roulement

Abrégé

A strand-guiding section arranged downstream of a continuous casting mould of a continuous casting line. The strand-guiding section has at least one strand-guiding roller supporting a metal strand cast with the continuous casting mould, is mounted in roller bearings in the strand-guiding section, and has at least one sensor device, which has at least one vibration sensor acoustically coupled to the strand-guiding roller or its roller bearings to detect the vibrations occurring with the rotation of the strand-guiding roller in the roller bearings. The strand-guiding roller is cooled internally by a cooling water. The vibration sensor is acoustically coupled to the strand-guiding roller and/or to the roller bearings via the cooling water. The evaluation device determines the status of the at least one roller bearing by evaluating the vibration data.

Classes IPC  ?

• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules
• B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
• F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
• G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur

Abrégé

The invention relates to a method for regulating a strand casting system, the strand casting system having a mould (1) and a strand guide (8) downstream of the mould (1), in which method - liquid metal (3) is cast into the mould (1), in particular via a feeder device (4), - the metal strand (7) is extracted from the mould (1) using spaced apart rollers (8b) of the strand guide (8), - a measurement variable, which correlates to the fluctuation of the casting level forming in the mould, is determined, said measurement variable is processed with the involvement of at least one calculation specification and is used to reduce fluctuations of the casting level (9), - in order to reduce fluctuations of the casting level, the mutual spacing of the opposing rollers (8b) of the strand guide is changed cyclically, specifically by cyclically changing the spacing of opposing rollers (8b) of the strand guide (8) in directions opposite to the fluctuations of the casting level (9), - frequencies of fluctuations of the casting level (9) are detected and at least one observer (25) is provided, which determines on the basis of this a compensation value (k') for a setpoint value (SET) of the spacing of the rollers (8b), the actual value (ACT) of the roller spacing being used as one of the input variables for said observer (25) in order to compensate a phase shift and/or amplitude of the actual value (ACT) of the roller spacing.

Classes IPC  ?

• B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement
• B22D 11/18 - Commande ou régulation des opérations ou du fonctionnement de la coulée
• B22D 11/20 - Commande ou régulation des opérations ou du fonctionnement du retrait des barres coulées

Produits et services

Extraction machines for exhaust gases; shut-off valves [parts of machines]; gate valves; transport and conveying machines; conveyors and belts for conveyors; bucket conveyors; archimedian screws (screw pumps); dust removing installations for cleaning purposes; cyclones; electric driving motors for machines; regulators [parts of machines]; systems for generating hydrogen, in particular for generating hydrogen by electrolysis, eg proton exchange membrane electrolysis or alkaline electrolysis, by natural gas pyrolysis or steam reforming; compressors for gases; machines for fine ore reduction; nozzles as machine parts, for injecting gases containing fine substances, hydrogen and carbon; parts and accessories (not included in other classes) for the aforesaid goods; plants being combinations of machines for the production of sponge iron (directly reduced iron). Furnaces; furnaces for metallurgical purposes; furnaces for the reduction of iron ores and for the production of sponge iron (directly reduced iron); control devices for furnaces for the reduction of iron ores and for the production of sponge iron (directly reduced iron); gas cleaning systems for exhaust gases and process gases; separator for gas cleaning of exhaust gases and process gases; wet or dry separators (gas cleaning devices) for industrial purposes; industrial drying installations; industrial drying systems based on fluidized beds; industrial drying systems for drying raw materials; heat exchangers, other than parts of machines; gas heating systems, in particular heat exchangers and recuperators for preheating gases; automatic devices for preheating minerals; reactors for metallurgical industrial plants, especially for fine ore reduction; fluidized bed based reactors for metallurgical industrial plants; reactors for gas-solids reactions; reactors as chemical industrial plants for the production of hydrogen; charging systems for industrial furnaces, for industrial drying systems, for reactors for metallurgical industrial systems, for reactors for gas-solid reactions and for reactors as chemical industrial systems for the production of hydrogen; material locks as part of the aforesaid goods; installations for the collection of gases; loading apparatus for systems for the production of sponge iron (directly reduced iron); control devices as parts for the aforesaid goods; parts and accessories (not included in other classes) for the aforesaid goods.

Abrégé

A direct reduction plant that includes a catalytic reformer and/or a gas furnace and a gas compression plant having one or more compressors. The gas compression plant includes at least one compression stage, and at least one gas cooler for compressed gas. A direct introduction line for introducing gas directly into the reformer and/or into the gas furnace proceeds from the gas compression plant or the gas cooler. A bypass is provided at least at one of the compressors. During operation, at least a portion of the compressed gas is cooled and compressed gas from the gas compression plant or the gas cooler is introduced directly into the reformer and/or the gas furnace. At least intermittently, a portion of a gas compressed by a compressor is returned by means of the bypass.

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

The invention relates to a direct reduction plant (10), comprising a catalytic reformer (60) and/or a gas furnace and comprising a gas compression system (50) having one or more compressors, wherein the gas compression system (50) comprises at least one compression stage (A, B), and wherein at least one gas cooler (51) for compressed gas is provided. A direct injection line (70) for injecting gas directly into the reformer (60) and/or into the gas furnace extends from the gas compression system (50) or from the gas cooler (51). A bypass (130) is provided at at least one of the compressors. During operation, at least a portion of the compressed gas is cooled, and compressed gas from the gas compression system (50) or from the gas cooler (51) is injected directly into the reformer (60) and/or into the gas furnace. At least some of the time, a portion of a gas compressed by a compressor is returned by means of the bypass (130).

Classes IPC  ?

• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

The present invention relates to the field of casting plants, preferably continuous casting plants for producing slabs. The problem addressed by the present invention is that of providing a method which allows quality-reducing defects to be detected before the cast product has left the casting plant. The problem is solved by a method for establishing a likelihood of defects in a cast product section (7a-7d). By means of a multi-stage product section calculation performed in real time, in a first calculation step at least changes in matrix phase proportions and an element concentration profile in phase regions are calculated in each case for a temperature-time step. The results of the first calculation step are fed to a second calculation step wherein, in the second calculation step, a change in precipitation proportions out of at least one phase region is determined for the subsequent temperature-time step. The results of the second calculation step are used as input variables for the first calculation step. The results of the product section calculation are used to determine at least one defect index.

Classes IPC  ?

• B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement

Abrégé

fifffff,miffii) relating to the further rolled goods (2') for training the statistical data model (14).

Classes IPC  ?

• B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés

Abrégé

The invention relates to the field of flow rate measurement of liquids by means of a magnetic-inductive flowmeter. The aim of the present invention is to provide a method which corrects the erroneous flow rate measurement. The aim is achieved by a method for compensating for at least one disturbance variable caused by a magnetic field in a flow rate measurement of liquids by means of a magnetic-inductive flowmeter (1), which supplies an erroneous flow rate (22) on the basis of the disturbance variable. An actual flow rate (23) is determined with the aid of the erroneous flow rate (22) and also a data-based model (20) of the disturbance variable. Characteristic influencing parameters of the disturbance variable are used as input parameters (21) for the data-based model (20). The aim is also achieved by an evaluation device (25) for carrying out the method. The invention further comprises an electric arc furnace (30) having a cooling system (27) which has an inflow (28) and an outflow (29) and in each case comprises a magnetic-inductive flowmeter (1). Each of the flowmeters (1) has an evaluation device (25).

Classes IPC  ?

• G01F 1/58 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets électriques ou magnétiques par débitmètres électromagnétiques
• G01F 15/02 - Compensation ou correction des variations de pression, de poids spécifique ou de température
• F27D 9/00 - Refroidissement des fours ou des charges s'y trouvant
• B22D 11/055 - Refroidissement des moules

Abrégé

The invention concerns a six-high rolling (also known as sexto) mill stand (1) for hot rolling an intermediate strip (2) into a thin strip (3) and a method for producing a thin strip (3) in a combined casting and rolling installation (40), wherein the thickness of the thin strip (3) is < 0.8 mm. It is an object of the invention to come up with a six-high rolling mill stand (1) that is suitable for hot-rolling of ultra-thin steel strip (3) with a thickness < 0.8 mm in a combined casting and rolling installation (1), whereby the hot rolling can be done in long uninterrupted sequences, without any change of the work rolls (4a, 4b), and very good geometry of the strip due to moderate rolling forces. This object is solved by the six-high rolling mill stand (1) for hot rolling an intermediate strip (2) into a thin strip (3) according to claim 1.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 13/14 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires ayant des dispositifs de contre-pression agissant sur les cylindres pour les empêcher de ployer sous l'effort
• B21B 29/00 - Dispositif de contre-pression agissant sur les cylindres pour les empêcher de ployer sous l'effort, p. ex. cylindres d'appui
• B21B 37/32 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant une commande du bombé des cylindres en refroidissant, en chauffant ou en lubrifiant les cylindres
• B21B 37/38 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant la flexion du cylindre
• B21B 38/02 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la planéité ou le profil des bandes

Abrégé

The invention relates to a transport apparatus (105), a lining machine (20), a system (10) and a method for operating such a system, the lining machine comprising a base frame (85), a rail group (90), a feed apparatus (95), a lift apparatus (110) and a working platform (100), the rail group (90) being mechanically fastened to the base frame (85) and the rail group (90) having at least one rail arrangement (150). The lift apparatus (110) has a roller carriage (220) and a lift unit (225) located on the roller carriage (220), the roller carriage (220) being provided on the rail arrangement (150) so as to be movable between an installation position and an operating position. The lift unit (225) is connected to the working platform (100) and is designed to lower the working platform (100) into the converter (35) via the converter opening (45), and the feed apparatus (95) has a roller conveyor (215), one end of which ends at the lift apparatus (110).

Classes IPC  ?

• C21C 5/44 - Garnissage réfractaire
• B66C 17/06 - Ponts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés spécialement adaptés à des buts particuliers, p. ex. dans des fonderies ou des forgesPonts roulants à chariot transbordeur comportant une ou plusieurs poutres principales sensiblement horizontales dont les extrémités reposent directement sur des roues ou des rouleaux se déplaçant sur une voie soutenue par des supports espacés combinés avec des appareils auxiliaires servant des buts particuliers
• F27B 5/08 - Aménagement des garnissages réfractaires
• F27D 1/16 - Confection ou réparation des garnissages
• F27D 1/04 - CarcassesGarnissagesParoisVoûtes caractérisés par la forme des briques ou des blocs utilisés
• F27D 1/00 - CarcassesGarnissagesParoisVoûtes

Abrégé

The invention relates to rails for a rail vehicle track. The problem addressed by the present invention is that of making it possible, during travel in normal operation, for the rail vehicle to identify rails (2) laid as track. This problem is solved by a rail (2) for a rail vehicle track, the rail (2) having a longitudinal extension (L). An identification marker (1) is attached along the longitudinal extension (L) of the rail (2), preferably on an inner side (2a) and/or an outer side (2b) of the rail (1). Said identification marker (2) is composed of a plurality of symbols, each symbol (1a) having at least one partial length (TL) of 0.15 metres, and one identification marker (1) consisting at least of eight, preferably of sixteen, particularly preferably of twenty symbols (1a). The invention further relates to an apparatus and to a method for identifying a rail (2).

Classes IPC  ?

• B61L 23/04 - Dispositifs de commande, d'avertissement ou autres dispositifs de sécurité le long de la voie ou entre les véhicules ou les trains pour contrôler l'état mécanique de la voie

Abrégé

The invention relates to rails for a rail vehicle track. The problem addressed by the present invention is that of making it possible, during travel in normal operation, for the rail vehicle to identify rails (2) laid as track. This problem is solved by a rail (2) for a rail vehicle track, the rail (2) having a longitudinal extension (L). An identification marker (1) is attached along the longitudinal extension (L) of the rail (2), preferably on an inner side (2a) and/or an outer side (2b) of the rail (1). Said identification marker (2) is composed of a plurality of symbols, each symbol (1a) having at least one partial length (TL) of 0.15 metres, and one identification marker (1) consisting at least of eight, preferably of sixteen, particularly preferably of twenty symbols (1a). The invention further relates to an apparatus and to a method for identifying a rail (2).

Classes IPC  ?

• B61L 23/04 - Dispositifs de commande, d'avertissement ou autres dispositifs de sécurité le long de la voie ou entre les véhicules ou les trains pour contrôler l'état mécanique de la voie

Abrégé

The invention relates to a method for cooling a rolled product (15) in a cooling section (19) which is located upstream of a finishing train (9) of a hot rolling mill (1) and which comprises at least one cooling device (21, 22, 23) by means of which a coolant flow of a coolant (35) can be delivered onto a rolled product surface (29) of the rolled product (15). In the method, a coolant flow is delivered, by means of each cooling device (21, 22, 23) and in each cooling section pass, onto the rolled product surface (29), which flow is set to a set value that is assigned to the relevant cooling device (21, 22, 23) for the cooling section pass. The set values for a cooling section pass are determined in a simulation of the cooling section pass in such a manner that surface temperatures, determined in the simulation, of the rolled product surface (29) upon leaving active regions (31, 32, 33) of the cooling device (21, 22, 23) do not exceed a minimum value for a surface temperature of the rolled product surface (29).

Classes IPC  ?

• B21B 37/76 - Commande du refroidissement sur la table de sortie
• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer

Abrégé

The invention relates to a method for producing a microalloyed steel, to a microalloyed steel, and to a combined casting/rolling installation. The combined casting/rolling installation (10) has a strand casting machine (15) with a mold (90); a single- or multi-stand pre-rolling train (20); and a finishing rolling train (50) comprising a first stand group (115) with at least one first finishing rolling stand (125) and a second stand group (120) with at least one stand cooler (135). A molten metal (95) is cast in the mold (90) in order to form a partially solidified thin slab (100), wherein the partially solidified thin slab (100) is supported, deflected, and cooled, and the thin slab (100) is supplied to the pre-rolling train (20) in a substantially completely solidified state. The pre-rolling train (20) rolls the thin slab (100) into a pre-rolled strip (110), and the first stand group (115) finish-rolls the pre-rolled strip (110) into a finished rolled strip (145). The finished rolled strip (145) is then supplied to the second stand group (120) immediately after the finish-rolling process, and the finished rolled strip (145) is force-cooled in the second stand group (120) while maintaining the thickness of the finished rolled strip (145) such that the cooling speed of the core of the finished rolled strip (145) in the second stand group (120) is greater than 20°C/s and less than 200°C/s.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
• C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
• C21D 9/60 - Fours continus pour bandes ou fils métalliques avec chauffage par induction
• C21D 1/42 - Chauffage par induction
• C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
• B21B 31/00 - Structures des cages de laminoirMontage, réglage ou échange des cylindres, des supports de cylindres ou des châssis
• B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
• B22D 11/04 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules sans fond
• B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
• B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement

Abrégé

The invention relates to a method and a device for bridging an interruption in production in a combined casting-rolling installation (1). The aim of the invention is to provide a combined casting-rolling installation for producing a hot-rolled finished strip, in which, in the case of an interruption, also thick precursor material (3) having a thickness of > 30 mm can be separated in a rapid and reliable manner from the next precursor material (3). This problem is solved by a method according to claim 1 and a device according to claim 6.

Classes IPC  ?

• B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs

Abrégé

The invention relates to a method for coiling a metal strip (205) to form a coil (200), to a coil (200) and to a coiling device (10), wherein the strip (205) is guided to a coiling mandrel (25) and is coiled on the coiling mandrel (25) to form a coil (200) with a coil opening (215), through which the coiling mandrel (25) extends, about a coiling axis (20) to form a first winding (230) of a first coil portion (220), and during coiling is pressed against the coiling mandrel (25) by at least a first winding roller (30), wherein a material is applied to an outer side (235), facing away from the coil opening (215), of the first winding (230) of the strip (205), wherein the strip (205) is coiled radially on the outside of the first winding (230) about the coil axis (20) in at least a second winding (250) to form a second coil portion (225), wherein, during the coiling by the first winding roller (30), the strip (205) is pressed against the applied material, wherein the material is hardened to form a connecting layer (240) that mechanically connects the strip (205) of the first winding (230) to the strip (205) of the second winding (250).

Classes IPC  ?

• B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
• B21C 47/24 - Manipulation des matériaux enroulés, pour les transférer vers les appareils à enrouler, les sortir de ces appareils, les mettre en position de fonctionnement dans ces appareils, ou les retirer de cette positionMoyens pour empêcher le déroulement pendant le transport
• B21C 47/26 - Dispositions particulières permettant un traitement simultané ou subséquent du matériau

Abrégé

A device for stabilizing of working rollers and back-up rollers of a mill stand that has, for each bending block, first hydraulic pressing units being arranged upstream of the working roller, each first hydraulic pressing unit having a piston with a piston rod and a pressure plate, the piston and the piston rod being integrated in the bending block and the pressure plate being pressable against a working roller chock, and for each stand column, at least one second hydraulic pressing unit, the second hydraulic pressing unit being arranged downstream of the back-up roller and having a piston with a piston rod and a pressure plate, the piston and the piston rod being integrated in the stand column and the pressure plate being pressable against the back-up roller chock, and a first hydraulic pressing unit containing a first oscillation absorber.

Classes IPC  ?

• B21B 13/22 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires pour laminer du métal immédiatement après la coulée continue

Abrégé

The present invention relates to stabilizing the work rolls (1) and the backup rolls (2) of a roll stand (30) during the hot rolling of a rolling material (31) to form a strip (32) in the roll stand (30). The problem addressed by the invention is that of finding a device for stabilizing the work rolls (1) and the backup rolls (2) of a roll stand (30), the device allowing the stand oscillations arising to be lastingly and reliably reduced. This problem is solved by means of a device according to claim 1, comprising: for each bending block (4a), a plurality of first hydraulic pressing units (6) for stabilizing the work rolls (1) in the stand frame (3), the first hydraulic pressing units (6) being upstream of the work roll (1) in the transport direction of the rolling material (TR), each first hydraulic pressing unit (6) comprising a piston (8) with a piston rod (9) and comprising a pressure plate (10), the piston (8) and the piston rod (9) being integrated into the bending block (4a), and the pressure plate (10) being able to be hydraulically pressed against a work roll installation piece (4); and, for each stand frame (3), at least one second hydraulic pressing unit (7) for stabilizing the backup rolls (2) in the stand frame (3), the second hydraulic pressing unit (7) being downstream of the backup roll (2) in the transport direction of the rolling material (TR), the second hydraulic pressing unit (7) comprising a piston (8) with a piston rod (9) and comprising a pressure plate (10), the piston (8) and the piston rod (9) being integrated into the stand frame (3), and the pressure plate (10) being able to be hydraulically pressed against the backup roll installation piece (5); wherein a first hydraulic pressing unit (6) contains a first oscillation damper (11a), which reduces arising pressure oscillations in a pressure chamber of the first hydraulic pressing unit (6).

Classes IPC  ?

• B21B 31/02 - Châssis de laminoirSupports de cylindres
• B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés

Abrégé

A method for cold rolling rolled stock (2) in a mill train (1) with multiple roll stands (3 to 7). An upper limit temperature and/or a lower limit temperature is provided for a rolled stock temperature of the rolled stock (2) for at least one rolling pass, and the rolled stock temperature is controlled and/or regulated by at least one control or regulating measure such that during the at least one rolling pass, the rolled stock temperature does not exceed the upper limit temperature specified for the rolling pass and/or the rolled stock temperature does not fall below the lower limit temperature specified for the rolling pass.

Classes IPC  ?

• B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
• B21B 1/28 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu par laminage à froid
• B21B 3/00 - Laminage des matériaux faits d'alliages particuliers dans la mesure où la nature de l'alliage exige ou permet l'emploi de méthodes ou de séquences particulières
• B21B 27/10 - Lubrification, refroidissement ou chauffage des cylindres extérieurement
• B21B 37/46 - Commande de la vitesse des cylindres ou du moteur d'entraînement
• B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
• B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
• B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer

Abrégé

The invention relates to a device and a method for depositing undissolved materials, in particular undissolved silicon compounds, from a pickling fluid in a pickling plant. A pickling circuit of the pickling plant has a pickling tank for pickling metal strips, a return line between the pickling tank and a circuit tank, a circulation pump for circulating a main volume flow of pickling fluid from the pickling tank, and a heating device arranged in a pressure line between the circuit tank and the pickling tank. The device according to the invention comprises a flocculation device, with which at least one flocculant can be introduced into the main volume flow, as well as a deposition device, arranged in the circuit tank and preferably designed as an inclined clarifying device, for the sedimentation of undissolved materials directly from the main volume flow. When pickling e.g. silicon-containing steel strips (electrical steel strips), an at least two-stage flocculation can be carried out using two or more mixing zone containers.

Classes IPC  ?

• C23G 1/36 - Régénération des liqueurs de décapage usées
• B01D 21/00 - Séparation par sédimentation de particules solides en suspension dans des liquides
• B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
• B01D 21/02 - Bacs de décantation
• C23G 1/08 - Fer ou acier
• C23G 1/00 - Nettoyage ou décapage de matériaux métalliques au moyen de solutions ou de sels fondus
• C23G 3/02 - Appareils pour nettoyer ou décaper les matériaux métalliques pour le nettoyage des fils, rubans, filaments métalliques en continu

Abrégé

A device for laterally guiding a metal strip (1, 13) running over a loop lifter (4, 12) between two roll stands (2, 3, 8, 9) of a finishing train. The device includes at least one main member module (14) extending in a direction between the roll stands. The module has a guiding plane (15), and also supports a number of wear members (18, 19, 20), each with a wear surface (21, 22, 23). Those wear members can be turned to a number of rotational positions. At least two wear members (18, 19, 20) are respectively arranged between one of the roll stands (2, 3, 8, 9) and the loop lifter, wherein, seen in the direction of the loop lifter (4, 12), the surface area of the wear surface (21, 22, 23) of adjacent wear member bodies (18, 19, 20) increases. During the operation of the device, at least one of the wear members is rotated while the metal strip (1, 13) is running to expose another area of the wear surface to the side of the strip.

Classes IPC  ?

• B21B 39/14 - Guidage, présentation ou alignement des pièces travaillées
• B21B 1/24 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu
• B21B 13/02 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires dont les axes des cylindres sont disposés horizontalement