A toothing, in particular of a drive spindle for driving a roll in rolling mills or continuous casting plants, which has several teeth and meshes with a second toothing in the manner of a spline, wherein a flank line of the teeth has a curvature, and a deflection angle is formed between the rotational axis of the second toothing and the rotational axis of the drive spindle toothing, and wherein the teeth of drive spindle toothing have a twist in form of profile angle deviation over the tooth width in the flank direction.
B21B 35/14 - Broches d'accouplement ou d'entraînement, ou supports de broches spécialement adaptés aux laminoirs ou spécialement disposés dans ceux-ci
F16D 3/18 - Joints universels dans lesquels la flexibilité est réalisée par pivots ou organes de liaisons coulissants ou roulants les pièces d'accouplement comportant des dents d'engrènement coulissant
F16D 11/00 - Embrayages dans lesquels les organes ont des parties qui se pénètrent mutuellement
2.
CASTING/ROLLING INSTALLATION AND METHOD FOR DISMANTLING AND INSTALLING ROLLS IN A REDUCING STAND OF THE CASTING/ROLLING INSTALLATION
The invention relates to a casting/rolling installation for producing hot-rolled strip. In order to save investment costs for the roll changing device in a corresponding installation with two parallel casting lines, without a roll change taking place in the process in a less operationally reliable and more complicated manner, it is proposed according to the invention to configure the roll changing device in the form of a rotary table and to arrange the latter in the intermediate space between the two casting lines.
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 31/10 - Changement des cylindres, des supports de cylindres ou des châssis par déplacement horizontal
3.
INSTALLATION PIECE FOR SUPPORTING A ROLLER IN A ROLLER STAND
The invention relates to an installation piece for supporting a roller in a roller stand of a roller frame. The installation piece comprises a main bore for receiving a journal of the roller, an inlet (120) for a lubricant, an outlet for the lubricant, and a pump device (130) for pumping the lubricant leaving the installation piece through the outlet. The pump device has a housing (132), an inlet channel (134), and an outlet channel (136), said inlet channel communicating with the inlet and said outlet channel communicating with the outlet for the flow of the lubricant. The pump device is driven by the flow of the lubricant in the inlet. The invention describes a pump device for an installation piece as an alternative to the prior art. The housing of the pump device according to the invention is equipped with a screw pump (137) and a turbine (139), which is driven by the pressurized inflowing lubricant, in the inlet channel for driving the screw pump.
The invention relates to a device (1) and a method for laterally guiding a slab (2) on a transport track (3), comprising a first guide rule (4) and a second guide rule (5). The guide rules (4, 5) are arranged opposite each other on both sides of the transport track (3) and are each connected to at least one actuating drive (6) so as to move in a direction of a width of the transport track (3). The actuating drive can be actuated perpendicularly to the transport direction (7) of the slab (2), wherein the respective longitudinal axis (4L, 5L) of the first guide rule (4) and/or the second guide rule (5) can be positioned at a specified angle (α) relative to the transport direction (7) of the slab (2). The first and/or the second guide rule (4, 5) has at least one contact roller (8) which can be brought into contact with a lateral edge of the slab (2) in order to guide and/or compress the slab (2).
B21B 13/06 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires dont les axes des cylindres sont disposés verticalement
B21C 47/34 - Dispositifs d'alimentation ou de guidage non spécialement adaptés à un type particulier d'appareil
B21B 37/68 - Commande de la cambrure ou de la direction des bandes, des feuilles ou des tôles, p. ex. prévention des méandres
B21B 39/14 - Guidage, présentation ou alignement des pièces travaillées
The invention relates to a shears (1), in particular cross-cutting shears, for cutting flat material, comprising a upper blade support (2) and a lower blade support (3), at least the upper blade support (2) or the lower blade support (3) being reciprocatingly displaceably guided and being displaceable by means of at least one adjustment device (4, 5) relative to the other respective blade support (3, 2), the displaceable blade support (2, 3) being guided by means of the adjustment device (4, 5) and the adjustment device (4, 5) being designed such that it absorbs all the cutting forces and transversal forces.
The invention relates to an exhaust gas system comprising an exhaust gas channel for receiving exhaust gas from an exhaust gas generator at the exhaust gas channel inlet and for discharging the exhaust gas at the exhaust gas channel outlet, comprising a valve in the exhaust gas channel, comprising a suction fan arranged in the exhaust gas channel downstream of the valve for conducting the exhaust gas within the exhaust gas channel in the direction of the outlet, and comprising a regulating device. The aim of the invention is to save on energy and costs. This is achieved by an alternative regulating process for the exhaust gas system, wherein the degree of opening of the valve is adjusted to a specified target degree of opening by varying the rotational speed of the suction fan in a suitable manner.
The invention relates to a method for winding a metal strip (1) onto a reel with a winding mandrel (2), to which the metal strip (1) is routed through a pair consisting of a first and a second driver roller (5, 6), at least one of which is driven. The method is characterised in that a difference between the strip speed (vB) of the metal strip (1) and the speed (v5, v6) of the driver rollers is adjusted on the basis of measuring, from measurable process variables, the strip speed and the speed (v5, v6) of at least one of the driver rollers (5, 6).
B21C 47/00 - Enroulement, bobinage ou dévidage des fils, bandes ou autres matériaux flexibles métalliques, caractérisés par le fait que ces opérations ne s'appliquent qu'au travail des métaux
B21C 47/34 - Dispositifs d'alimentation ou de guidage non spécialement adaptés à un type particulier d'appareil
8.
METHOD AND DEVICE FOR PREDICTING, CONTROLLING AND/OR REGULATING STEELWORKS PROCESSES
The present invention relates to a method for predicting, controlling and/or regulating steelworks processes, comprising the steps of monitoring at least two input variables related to a target variable, determining the relationship between the at least two input variables and at least one target variable by means of regression analysis or classification methods, and using the determined target variable for predicting, controlling and/or regulating the steelworks process.
The present invention relates to a device (3) for cooling rolled stock (2), preferably for cooling during cold rolling, comprising a nozzle (32) for applying a cooling medium (34) to the rolled stock (2), wherein a cooling chamber (4) that is in fluid communication with the nozzle (32) and extends substantially parallel to the strip running plane (10) is provided for applying the cooling medium (34) to the rolled stock (2).
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
The invention relates to a method for operating a rolling mill (1), comprising the steps of recording at least one operating parameter as a measured actual value and identifying at least one mass segment or volume segment of a rolling material passing through using measured operating parameters and/or other operating parameters by means of integration, wherein at a specified measuring point (MO, M1, M2,..., Mn), at least one of the operating parameters comes from the group of strip thickness, strip width, strip speed, strip density and strip cross-section, and is factored into the identification process as an unmeasured target value.
The invention relates to a method for operating a brush roll (1) on a roll stand (2), wherein the brush roll (1) comprises at least one rotating brush (3) which can be brought into engagement with a working roll (4) on the roll stand (2). The brush (3) is driven in rotation by a hydraulic motor (5). The hydraulic motor (5) can be brought into connection with a hydraulic fluid supply source (6), wherein the hydraulic fluid supply source (6) comprises a pump (7) and a drive motor (8) driving the pump (7) and wherein a working fluid is maintained at a predefined base pressure (p0) by the pump (7). The method according to the invention provides the following steps to reduce the heat input into the brush roll: a) determination of the load applied by the brush (3) onto the working roll (4) and/or the power (PB) consumed by the brush (3); b) determination of a working pressure (p1) of the working fluid necessary for the brush (3) to apply the load or consume the power (PB); c) comparison of the required working pressure (p1) with the base pressure (p0); d) reduction of the drive output (PM) of the drive motor (8) in the hydraulic fluid supply source (6) if the working pressure (p1), particularly taking a tolerance into consideration, is lower than the base pressure (p0) and increasing the drive output (PM) of the drive motor (8) in the hydraulic fluid supply source (6) if the working pressure (p1), particularly taking a tolerance into consideration, is greater than the base pressure (p0). The invention further relates to a brush roll.
B24B 29/00 - Machines ou dispositifs pour polir des surfaces de pièces au moyen d'outils en matière souple ou flexible avec ou sans application de produits de polissage solides ou liquides
F04B 49/08 - Régulation par la pression de refoulement
F03C 1/26 - Machines motrices à liquide à pistons alternatifs adaptées à une utilisation particulière ou combinées avec les appareils qu'elles entraînent
B21B 27/00 - CylindresLubrification, refroidissement ou chauffage des cylindres en cours d'utilisation
The invention relates to a method for operating an arc furnace (1), wherein the arc furnace comprises a receiving vessel (2) for molten material (3) and also at least one electrode (4), wherein the electrode (4) is arranged on a carrier arm (5) and is held thereby, wherein a foamed slag former (C) is introduced into the receiving vessel (2) in order to form a layer of foamed slag (6) with a height (h) on the molten material (3). In order to determine the foamed slag height in an improved manner, and to thereby optimize the feed of the foamed slag former, the method comprises the following steps: a) determining a functional relationship (h = f (a)) between the oscillations of the electrode (4) or of the carrier arm (5) during operation of the arc furnace (1) and the height (h) of the foamed slag (6) by measurement; b) operating the arc furnace (1), the oscillations of the electrode (4) or of the carrier arm (5) being measured and, on the basis of these measured values, the height (h) of the foamed slag (6) being determined using the functional relationship (h = f (a)) determined in step a).
C21C 5/52 - Fabrication de l'acier au four électrique
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 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
G01F 23/00 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme
The present invention relates to a method for dynamically supplying coolant to a cooling device, in particular at least one spray bar, for cooling metal strip or other rolled stock. According to the method, a pre-accelerated stream of coolant is provided, which passes by the cooling device (1) and is fed into a return (3). Furthermore, the presence and/or the temperature of a metal strip or other rolled stock to be cooled is monitored and, depending on the presence and/or the temperature of the metal strip or the other rolled stock, the stream of coolant is diverted to the cooling device (1), wherein, instead of passing by the cooling device (1) and being fed into a return (3), the stream of coolant is fed to the cooling device (1) for cooling the metal strip or the other rolled stock. The present invention also comprises a corresponding device for carrying out the method.
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
B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
14.
METHOD FOR CLEANING AND/OR DESCALING A SLAB OR A PRELIMINARY STRIP BY MEANS OF A DESCALING DEVICE, AND DESCALING DEVICE
The invention relates to a method for cleaning and/or descaling a slab or a preliminary strip (1) by means of a descaling device (2), wherein the descaling device (2) has at least one nozzle (3), through which water under pressure (p) is discharged onto the surface of the slab or of the preliminary strip (1). In the method according to the invention, in order to achieve a good descaling result in an energy-saving manner, the outlet (4) of the nozzle (3) is rectangular, or is slit-shaped and has an arcuate course at least in some sections, in a direction normal (N) to the surface of the slab or of the preliminary strip (1), such that the water is discharged as a continuously strip-shaped jet (5) across the entire width (B) of the slab or of the preliminary strip (1), wherein the width (b) of the outlet (4) of the nozzle (3) in a conveying direction (F) of the slab or of the preliminary strip (1) is selected between 0.2 mm and 1.5 mm, wherein the water is fed to the nozzle (3) at a pressure between 5 bar and 50 bar and wherein the distance (a) between the outlet (4) of the nozzle (3) and the surface of the slab or of the preliminary strip (1) is selected between 8 mm and 50 mm. The invention further relates to a descaling device.
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 45/08 - 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 hydrauliquement
The invention relates to a device for trimming rolled material (10) in a rolling mill, comprising a trimmer (1, 2) for trimming the edges of the rolled material (10) and an edge cutter (6) arranged after the trimmer (1, 2) for cutting up the cut-off edge (11), wherein an edge press (9) for pressing the cut-off edge (12) is arranged after the edge cutter (6).
B23D 31/04 - Machines à cisailler ou dispositifs de cisaillage couverts par aucun ou par plusieurs des groupes Combinaisons de machines à cisailler pour ébavurer les pièces et en même temps découper les copeaux en petits morceaux
16.
DEVICE AND METHOD FOR REPLENISHING AN ELECTRODE FOR A METALLURGICAL FURNACE
The invention relates to a method and a device (1) for replenishing an electrode (2) of a metallurgical furnace having a furnace cover (14), said electrode having a sensitive length section (21). The device (1) comprises a first and a second clamping ring (4, 5), adjusting cylinders (6, 7) for moving the first clamping ring (4) in relation to the second clamping ring (5) by a compensation stroke and for moving the electrode (2) in relation to the furnace cover (14) and a control apparatus (1s) for controlling the clamping rings (4, 5) and the adjusting cylinders (6, 7), wherein the control apparatus (1s) is programmed such that the compensation stroke for the adjusting cylinders (6, 7) for moving the first clamping ring (4) in relation to the second ring (5) can be set variably and in an automated manner, such that retightening of the first clamping ring (4) around the electrode (2) after the compensation stroke has been reached occurs only adjacently to the sensitive length section (21) of the electrode (2) and not within said length section (21).
H05B 7/102 - Fixations, supports ou bornes à la tête de l'électrode, c.-à-d. à l'extrémité éloignée de l'arc spécialement adaptés pour les électrodes consommables
The invention relates to a continuously operating casting and rolling system having a strip tension control means, consisting of a casting unit having a melt-containing feed vessel comprising a horizontal casting channel and a discharge region in the form of a casting nozzle, and a primary cooling zone comprising two guide rolls (2) and a circulating cooled casting strip (1) and at least one downstream rolling unit (4) consisting of at least two drivable rollers. In order to minimise the tension on the cast strip, the casting unit and the subsequent rolling unit are mechanically decoupled, wherein for the decoupling at least one driver unit (3, 3', 3") comprising at least two drivable rollers for driving the strip is arranged between the casting belt and the rolling unit.
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
18.
METHOD AND DEVICE FOR COOLING SURFACES IN CASTING INSTALLATIONS, ROLLING INSTALLATIONS OR OTHER STRIP PROCESSING LINES
The invention relates to a method for cooling a surface of cast material, rolled material (1) or a roll. Provided for the method is a nozzle, which comprises an inlet (3) and an outlet (5) lying opposite the surface to be cooled. Also provided is a preferably single-phase volume flow (V) of a cooling fluid, which is fed to the nozzle (2) via the inlet (3) and leaves the nozzle (2) through the outlet (5). According to the invention, the nozzle outlet (5) is mounted at a variable distance (d) from the surface to be cooled, wherein the volume flow (V) of the cooling fluid fed to the inlet (3) of the nozzle (2) is set in such a way that, in accordance with the Bernoulli principle, the nozzle (2) is sucked firmly against the surface (1) to be cooled. In addition, the invention is directed to a cooling device (10) for carrying out the method according to the invention and to a rolling device comprising this cooling device (10).
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
The invention relates to a roll arrangement (100) for use in metallurgical technology, comprising a roll that has a roll barrel (11) and two roll necks (10), and at least one neck bushing (20) for accommodating at least one of the roll necks (10) in a rotationally fixed manner. A dog element (25) that functions as a form-locking rotationally fixed connection is arranged between the roll neck (10) and the neck bushing (20). In order to increase the load-bearing capacity of the roll bearing without increasing the size of or the mounting space for the roll bearing and at the same time ensure easy assembly, the roll neck (10) is mounted in the neck bushing (20) with some radial play such that a circumferential cavity (12) is formed between the neck bushing (20) and the roll neck (10) in the unloaded state as a result of the radial play. In order to increase the size of the cavity (12), the roll neck (10) or the inner surface (21) of the neck bushing (20) additionally has a concave contour (50) or profile.
The invention relates to method for tapping slag and metal from an electric arc furnace comprising a lower vessel, cooled lateral walls adjoining the lower vessel and a cover that closes off the furnace in an upward direction and that has electrodes guided therethrough, wherein the lower vessel has a tapping channel for metal and, for tapping slag, can be tilted through a diametrically opposite furnace door in the direction of the longitudinal axis. The invention also relates to an electric arc furnace for carrying out the method. The method is characterised in that the furnace for tapping the slag and also for tapping metal is tilted beyond the starting point merely by raising at one side or by repositioning without lowering.
F27B 3/06 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique à chambre ou sole mobile, p. ex. inclinable
C21C 5/52 - Fabrication de l'acier au four électrique
C21C 5/56 - Fabrication de l'acier par d'autres méthodes
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 3/19 - Aménagement des dispositifs de déchargement
F27D 3/15 - Équipement de piquéeÉquipement pour l'élimination du laitier
21.
METHOD FOR MEASURING THE DISTANCE OF A MEASURING POSITION FROM A REFERENCE POSITION
The present invention relates to a method for measuring the distance (d) of a measuring position from a reference position, wherein the distance measurement is carried out using the measuring beam (2) of a laser tracker (1), and the measuring position is marked prior to the actual distance measurement by means of the measuring beam, wherein the distance measurement is controlled in a wireless manner. The invention further relates to a measuring device for measuring the distance (d) of a measuring position from a reference position, comprising a laser tracker (1) for carrying out a distance measurement by means of the measuring beam (2), and a control device (5) for controlling the laser tracker (1), wherein the control device (5) is configured such that the measuring position can be marked prior to the actual distance measurement by means of the measuring beam (2), wherein the distance measurement can be controlled in a wireless manner.
The invention relates to a roll arrangement (100) for use in metallurgical technology, comprising a roll that has a roll barrel (11) and two roll necks (10), and at least one neck bushing (20) for accommodating one of the roll necks (10) without play and in a rotationally fixed manner. In order to increase the load-bearing capacity of a roll arrangement without increasing the size of or the mounting space for the roll arrangement, a circumferential cavity is formed between the neck bushing (20) and the roll neck (10) in the unloaded state of the roll arrangement.
The invention relates to a method for opening and closing a tapping opening (1) of a metallurgical melting vessel (2), in particular of an electric arc furnace, in the bottom region (3) of which a wall section (4) having an opening (5) is arranged, wherein a device (6) for moving block elements (7, 8) in a direction (T) perpendicular to the surface normal of the wall section (4) in the area of the opening (5) is arranged below the opening (5), wherein the device (6) holds the block elements (7, 8) on the wall section (4) in such a way that the block elements lie against the wall section in a sealing manner. In order to achieve wear-free and reliable opening and closing of the tapping opening, it is provided that, in order to close the tapping opening (1), a block element (7) free of passage openings is moved under the opening (5) by the device (6), and that, in order to open the tapping opening (1), a block element (8) having at least one passage opening (9) is moved under the opening (5) by the device (6), such that liquid metal can drain from the melting vessel (2) through the passage opening (9) in the block element (8). The invention further relates to a metallurgical melting vessel.
The invention relates to a method for the surface inspection of strip pieces (120). The invention further relates to a device for carrying out the method. The method according to the invention comprises the following steps: cutting off the strip pieces (120) from a metal strip (210), wherein the strip pieces (120) comprise a length less than twice the circumference of a work roll (230) by means of which the metal strip (210) has previously been rolled; automatically checking the upper and/or lower side of the cut-off strip pieces (120) with the aid of a camera system (150) and an analysis unit (300) in regard to any periodic types of faults that may be present and caused by the work roll; ending the surface inspection process if periodically occurring types of faults are detected, or; feeding the cut-off strip pieces (120) to a strip inspection unit (140) for checking by means of inspection personnel for non-periodic types of faults if no periodic types of faults had previously been detected.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
25.
METHOD FOR OPERATING A CONVEYOR BELT OF A STRIP CASTING SYSTEM, AND STRIP CASTING SYSTEM
The invention relates to a method for operating a conveyor belt (3) of a strip casting system (1), comprising the steps of performing a profile measurement of the conveyor belt (3) in order to detect the position and/or the expansion of deformations (340) of the conveyor belt (3) and selectively heating the conveyor belt (3) in the area of the detected deformations (340) in order to reduce and/or eliminate the deformations by means of subsequent thermal contraction.
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
26.
METHOD AND STRAND GUIDE FOR INFLUENCING THE SOLIDIFICATION OF THE PARTIALLY STILL LIQUID CORE DURING CONTINUOUS CASTING
The invention relates to a method for influencing the solidification of the partially still liquid core of slabs and billets of steel during continuous casting. It is provided in this respect that the effect of a force or displacement is periodically applied to the wide sides of the strand.
The invention relates to a method for producing a metal strip, by applying a metal melt to a moving ferromagnetic conveyor belt, wherein an electromagnetic alternating field, which is at least predominantly or substantially perpendicular to the surface of the metal melt, is generated by means of a magnet system comprising a magnet yoke and coil. The alternating field is formed by a pair of electrically connected coils arranged parallel to one another and extending in the width direction of the metal strip. The alternating field acts stationarily on the melt, across the entire width of the metal strip that is forming, in such a manner that in the width direction of the metal strip an electromagnetic flux is generated in the metal melt and, by means of superimposition with the alternating field, force is exerted perpendicularly on the metal melt.
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
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
The invention relates to a device (1) for cooling a roll (2), in particular a working roll (2) for rolling materials (3) to be rolled, comprising a cooling shell (50), which lies opposite at least one sub-region of the circumference of the roll surface, for forming a cooling gap (5), through which a cooling fluid can flow, between the sub-region of the roll surface and the cooling shell (50). The device (1) further comprises a first lever (40) which can be pivoted about a suspension point (8), which can be pivoted in the direction of the roll surface, and which is rotatably connected to a first end region (51) of the cooling shell (5), when viewed in the circumferential direction (U) of the roll (2), and a second lever (90) which can be pivoted about another suspension point (8), which can be pivoted in the direction of the roll surface, and which is movably connected to the second end region (59) of the cooling shell, when viewed in the circumferential direction (U) of the roll, such that the cooling gap (5) can be selectively reduced or increased by pivoting the levers (40, 90). The invention further relates to an installation (10) for cooling a roll (2), said installation comprising the device (1) according to the invention, and to a method for using the device (1) or the installation (10).
The application is directed to a device (1, 1') for cooling a roll (2), in particular a working roll (2) for rolling rolling stock (3), wherein the device comprises a cooling shell (50, 60) which lies opposite at least one part region of the circumference of the roll surface for forming a cooling gap (5) between the part region of the roll surface and the cooling shell (50, 60), through which cooling gap (5) cooling fluid can flow, and a lever (40, 44) which can be pivoted about a suspension point (8, 48), can be pivoted in the direction of the roll surface and is connected rotatably to a first half (51, 61) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2), wherein the cooling gap (5) can optionally be reduced in size or enlarged by pivoting of the lever (40, 44). Furthermore, the device according to the invention comprises a variable-length linear guide (90, 99) which can be pivoted about a further suspension point (88, 48) and is connected rotatably to the second half (59, 69) of the cooling shell (50, 60) as viewed in the circumferential direction (U) of the roll (2).
The invention relates to a cooling device for a melting furnace, in particular for cooling a liquid slag (S) in a reduction furnace. The device comprises a lining (3) for laterally shielding a liquid molten metal bath (M) and a liquid slag (S) which is located on said bath, and the device also comprises a metal plate (5) which is arranged on a lining (3) side facing away from the molten metal bath (M) and the slag (S). The metal plate (5) comprises a plurality of slots (13) which are oriented in a substantially vertical manner and which are arranged adjacently to one another, wherein one copper plate (7) extends into the lining (3) through each of the slots (13) substantially perpendicular to the metal plate (5). The device further comprises cooling channels (9) through which coolant can flow and each of which is arranged between two adjacently arranged slots (13) and the copper plates (7) extending through said slots (13) on the metal plate (5) side facing away from the molten metal bath (M) and the slag (S). The invention additionally relates to a furnace comprising the cooling device and to a method for producing such a cooling device or such a furnace.
The invention relates to a scrap melting furnace-ladle furnace system, in which the scrap is melted in the scrap melting furnace by means of supplied primary energy, and the metal melt is tapped into a ladle furnace, in which the melted metal is superheated by electrical energy, particularly an arc furnace, and the steel optionally undergoes a final alloying process. The invention also relates to a method for operating a scrap melting furnace-ladle furnace system.
The invention relates to a low-shaft arc furnace with a shaft tube, in which at least one electrode is arranged so that it can move axially, a scrap feed in which at least one electrode is arranged so that it can move axially, a scrap feed in the intermediate space between the furnace vessel outer wall and the shaft tube, a hearth adjoining the lower end of the furnace vessel and intended for receiving the molten metal and also a tapping hole for the slag and a tapping hole for the metal as well as burners directed into the furnace chamber. According to the invention, scrap ledges or fingers are provided in the region of the lower end of the shaft tube, facing in the direction of the shaft tube from the outer wall of the furnace vessel and surrounding the shaft tube at a distance. Primary gas burners are also arranged above the scrap ledges or fingers for melting the scrap collecting on the scrap ledges. The annular space between the scrap ledges and the shaft tube is dimensioned such that the liquid metal can flow through the annular space into the hearth.
F27B 1/02 - Fours à cuve ou fours verticaux similaires ou à prédominance verticale à plusieurs cuves ou chambres, p. ex. à plusieurs étages
C21C 5/56 - Fabrication de l'acier par d'autres méthodes
F27B 3/04 - Fours à sole, p. ex. fours à réverbérationFours à arc électrique du type à plusieurs solesFours à sole, p. ex. fours à réverbérationFours à arc électrique du type à plusieurs chambresCombinaisons de fours à soles
F27D 13/00 - Appareils pour le préchauffage des chargesDispositions pour le préchauffage des charges
The invention relates to a support roller (1, 10), particularly for rolling mill systems or equipment for casting, conveying or straightening metal products, comprising a cylindrical roller axle (2, 20), a hollow cylindrical outer ring (3, 30) arranged concentrically in relation to the roller axle (2, 20), and a plurality of rolling bodies (5, 50) arranged between the roller axle (2, 20) and the outer ring (3, 30). According to the invention, the roller axle (20) further comprises a cavity (70), at least in certain sections between its central axis (A) and a load introduction point. Due to the provision of the cavity according to the invention, particularly the load rating and the service life of the support roller are increased.
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 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
34.
SUPPLY DEVICE FOR A SHAFT FURNACE CONNECTED TO A GAS EXTRACTING UNIT
The invention relates to a supply device for a shaft furnace connected to a gas extracting unit, having a feed device leading to the head of the upper vessel of the furnace and a loading device at least partially integrated in the atmosphere in the furnace for filling the furnace vessel with bulk material. The loading device consists of a drum which is rotatable about a rotational axis arranged horizontally with respect to the longitudinal axis of the furnace and has, at the circumference thereof, a sector-shaped cutout for introducing and removing the load.
The present invention relates to a method for the surface inspection of metallurgic cast products (1) in a production line, comprising the steps of receiving a thermographic image of at least one partial area of the cast product (1) and evaluating the thermographic image for the presence of surface defects and/or defects near the surface. The invention further relates to a device for inspecting metallurgic cast products (1) in the production line, comprising a thermography camera (2), which is arranged such that a thermographic image of at least one partial area of a cast product (1) can be made using said camera, and an evaluating device (5) for evaluating the thermographic image for the presence of surface defects and/or defects near the surface.
The invention relates to an apparatus for straightening metal strips, comprising a first, upper group (1) and a second, lower group (1') of straightening rollers arranged in each case immediately in succession in a strip running direction, and a group of individually controllable actuators (2) arranged alongside one another in a transverse direction, wherein an axial bending profile of at least a first of the straightening rollers (1) is settable by the group of actuators (2), wherein at least one second group of individually controllable actuators (2) arranged alongside one another in the transverse direction is provided, wherein an axial bending profile of the least a second of the straightening rollers (1), which is in particular different from the bending profile of the first bending roller (1), is settable by the second group of actuators.
B21D 1/02 - Redressage, remise en forme ou élimination des distorsions locales des tôles ou d'objets déterminés faits à partir de tôlesÉtirage des feuilles métalliques combiné avec le laminage au moyen de rouleaux matriceurs
The invention relates to a device (1) for detecting the presence of rolling or cast stock (2), more particularly a metal strip or plate (2), in a casting, rolling or other strip processing facility, wherein the device comprises a detection device (3) for detecting a fluid jet (5) which indicates the presence of the rolling or cast stock (2), and this detection device in turn comprises an air-filled cavity (7), which has a tubular opening (9), and a pressure sensor (11) for detecting an air pressure change in the cavity (7) when the fluid jet (5) hits the tubular opening (9). The invention further relates to a corresponding method for determining the position of rolling or cast stock (2), more particularly a metal strip or plate (2), which moves through a casting, rolling or other strip processing facility.
B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
B65H 7/02 - Commande de l'alimentation en articles, de l'enlèvement des articles, de l'avance des piles ou d'appareils associés permettant de tenir compte d'une alimentation incorrecte, de la non présence d'articles ou de la présence d'articles défectueux par palpeurs ou détecteurs
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
The invention relates to a sealing device (100) for installation in a roll arrangement between the roll journals (110) of a roll (200) and an installation piece (300). The sealing device has an annular main body (110) having sealing rims (120-1, 120-2) that extend radially outwards. Furthermore, the sealing device (100) has an annular reinforcement element (130) having a strip-like section (132) which coaxially surrounds the main body (110) on the outer side thereof. In order to ensure the dimensional stability and thus also the function of the sealing device even after the installation thereof in the roll arrangement, that is to say after said sealing device has been pushed onto the frustoconical roll journals, the reinforcement element according to the invention has, in addition to the coaxial strip-like section, at least one flange (134-1, 134-2) which is connected thereto and is connected to the sealing rim (120-1, 120-2). Furthermore, the invention relates to said roll arrangement.
The invention relates to a Steckel mill (1), comprising at least one reversing roll stand (2), a coiling furnace (3) arranged on the inlet side of the reversing roll stand (2), and a coiling furnace (4) arranged on the outlet side of the reversing roll stand. According to the invention, in order to achieve an economical implementation of a Steckel mill while maintaining high functionality, respective integral units (5, 6) having a driver (7), a shear (8), and a looper (8) are arranged between the coiling furnace (3) arranged on the inlet side and the at least one reversing roll stand (2) and between the at least one reversing roll stand (2) and the coiling furnace (4) arranged on the outlet side.
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
40.
DEVICE FOR STRAIGHTENING A FLOW FOR COOLING A ROLL OR A METAL STRIP
The invention is directed to a device (1) for straightening a stream of cooling medium for cooling a roll or a metal strip. This device (1) comprises a hollow body (3), extending over at least part of the width of the roll or the metal strip, and a tube (5), arranged in the hollow body (3) and extending in the direction of the width (B) of the roll or the metal strip, wherein the hollow body (3) is divided in the direction of the width (B) of the roll or the metal strip into a number of chambers and the tube (5) comprises openings (9) for introducing cooling medium into the chambers of the hollow body (3) and the chambers respectively comprise an opening for the flowing out of cooling medium from the hollow body (3). Furthermore, according to the invention the chambers respectively comprise a channel (12), formed between the inner wall of the hollow body (3) and the tube (5), for conducting cooling medium from the openings (9) of the tube (5) to the opening for the flowing out of cooling medium from the hollow body (3), wherein the flow cross section of the channel (12) narrows at least at its downstream end.
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
41.
METHOD FOR THE CONTINUOUS CASTING OF A METAL STRAND IN A CONTINUOUS CASTING INSTALLATION AND A CONTINUOUS CASTING INSTALLATION
The invention relates to a method for the continuous casting of a metal strand in a continuous casting installation (1), in which, in a casting machine (2), the metal formed into a slab, with a still molten core, is brought out vertically (V) from a mould, wherein, downstream of the mould in the conveying direction (F), the slab is made to move along a casting bow (3), through a number of casting bow segments (4, 5, 6, 7, 8, 9, 10, 11), and is deflected into the horizontal (H), wherein each casting bow segment (4, 5, 6, 7, 8, 9, 10, 11) has a number of segment rollers (12, 13), which are designed for coming into contact with the surface of the slab. To allow consistently optimum process conditions to be maintained while the casting speed is changing, the invention provides that, in the region before the end of the casting machine (14), a number of segment rollers (12, 13) are lifted off from the surface of the slab, or are not installed in receptacles provided, and so the contact between the slab and the segment roller (12, 13) is interrupted or there is no contact. The invention also relates to a continuous casting installation.
The invention relates to a method for producing a metal strip (1) in a plant, comprising a continuous casting installation (2), a first furnace (3), a second furnace (4) and an adjoining rolling mill (5). To save energy, according to the invention the method provides the following steps: a) setting a production level of metal slabs or metal strips (1) to be produced, comprising at least two different metal slabs or metal strips (1); b) determining the respective entry temperatures (TFM) into the rolling mill (5) for all the metal slabs or metal strips (1) to be produced; c) determining an exit temperature (TAO1) from the first furnace (3), wherein this temperature is chosen to be lower than the highest entry temperature (TFM) into the rolling mill (5) determined in step b) and is chosen to be lower than or substantially the same as the lowest entry temperature (TFM) into the rolling mill (5) determined in step b); d) operating the first furnace (3) in such a way that the metal slabs or metal strips (1) to be produced leave the first furnace (3) with the exit temperature (TAO1) determined according to step c); e) heating or reheating a metal slab to be produced or metal strip (1) to be produced by means of the second furnace (4) to its required entry temperature (TFM) into the rolling mill (5), provided that this temperature lies above the exit temperature (TAO1) of the first furnace (3) that was reached according to step d). The invention also relates to a plant for producing a metal slab or a metal strip.
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 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
The invention relates to an edger rolling mill (1) for edging metal strips, comprising a roll housing (20, 22) and a mechanical adjustment device (3) for adjustment of an edging roll (2), wherein the mechanical adjustment device (3) comprises an adjusting screw (30) and a clamping nut (32) for adjusting the edging roll (2). The edger rolling mill has a balancing device (4), comprising a balance bushing (40) arranged on the roll housing (22), which receives the clamping nut (32) and the adjusting screw (30) and which is movable in order to balance the edging roll (2) relative to the roll housing (22).
B21B 13/06 - Cages de laminoirs, c.-à-d. ensembles composés d'un châssis, de cylindres et d’accessoires dont les axes des cylindres sont disposés verticalement
44.
METHOD FOR RECOVERING A METAL FROM A SLAG CONTAINING THE METAL AND DEVICE FOR RECOVERING SAID METAL
The present invention relates to a method for recovering a metal from a slag containing the metal, in which the metal-containing slag is heated in at least one stirred tank reactor (2), and in which the liquid slag in the stirred tank reactor (2) is stirred by means of an appropriately directed magnetic field, wherein the slag is periodically stirred. The invention further relates to a device for recovering a metal from a slag containing said metal, comprising a stirred tank reactor (2) for heating the metal-containing slag and an electromagnet (13, 14) for generating a magnetic field in such a way that the liquid slag is stirred, wherein a switching device (15) is provided for the periodic operation of the electromagnet (13, 14).
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 3/10 - Parties constitutives, accessoires ou équipement, p. ex. collecteurs de poussière, spécialement adaptés aux fours à sole
F27B 14/06 - Fours à creusetsFours à bassin chauffés électriquement, p. ex. creusets à induction, avec ou sans une autre source de chaleur
F27B 14/08 - Parties constitutives spécialement adaptées aux fours à creusets ou à bassin
F27B 19/04 - Combinaisons de différents genres de fours qui ne sont pas tous couverts par un seul des groupes principaux disposés pour un travail conjugué
F27D 27/00 - Dispositifs agitateurs pour matériaux fondus
C22B 9/18 - Refusion sous laitier électroconducteur
The present invention relates to a method for temperature control in a rolling mill for production of preliminary strip comprising the steps: determining sections of reduced temperature in the preliminary strip and selective addition of heat energy to the sections of reduced temperature of the preliminary strip. The present invention further relates to a device for temperature control in a rolling mill.
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
46.
METHOD AND DEVICE FOR ROLLING ROLLING STOCK AND USE OF A COOLING LUBRICANT
The present invention relates to a method for rolling rolling stock (1), wherein a water-based cooling lubricant is applied to the rolling stock (1) and/or to at least one roller (20, 22, 30, 32) which forms a roll gap (200, 300), at least one water-soluble and tribologically active additive being added to the water-based cooling lubricant prior to application to the rolling stock and/or to the at least one roller.
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
47.
METALLURGICAL DEVICE AND SEALING MEANS FOR A METALLURGICAL DEVICE
The present invention relates to a metallurgical device comprising at least one cooling device (10), into which at least one coolant duct (20, 22) is introduced, wherein the coolant duct (20, 22) is sealed by a sealing means (3) arranged in a sealing means mounting (24), wherein the sealing means (3) has a radial seal (4) for sealing the coolant duct (20, 22). The invention further relates to a sealing means (3) for a coolant duct (20, 22) of a continuous casting mould (1), wherein the sealing means (3) has a radial seal (4) for sealing the coolant duct (20, 22).
The invention relates to a method for cooling a roll (1), in particular a working roll (1) of a hot-rolling system, comprising the steps of feeding coolant (3) by means of a nozzle (5) into a gap (7) between at least a part of the roll surface and a cooling shell (9, 11) that can be placed against the part of the roll surface and adjusting the gap height (h) between the cooling shell (9, 11) and the roll surface. According to the invention, the adjustment of the gap height (h) comprises either measuring the pressure (Pactual) of the fed coolant (3) or measuring the volumetric flow rate (Vactual) of the fed coolant (3). The invention further relates to a corresponding device (10) for cooling a roll (1).
The invention relates to a converter gas discharge for a rotatable and pivotable blowing jet converter, having a cooling chimney hood between converter and static cooling chimney top section for discharging the converter gas to a gas recovery unit, wherein the cooling chimney hood is located at the top edge of the converter in a sealing manner. The cooling chimney hood can be raised and lowered relative to the static cooling chimney top section in order to leave free, in an upper position, an adequately large gap between converter edge and cooling chimney hood to allow the converter to make rotating and pivoting movements, while the edge of the cooling chimney hood facing the converter is located in a lower position at the edge of the static converter in a sealing manner. A seal permitting a vertical displacement between cooling chimney hood and cooling chimney top section is provided in the transition region from the cooling chimney hood to the static cooling chimney top section, and the cooling chimney hood can be lowered into a further position, in which it can be laterally displaced relative to the static cooling chimney top section.
In the case of a Cardan-joint shaft (1) comprising a first and a second jointed shaft portion (2, 3) and comprising bearing lugs (4) fastened in each case to a fastening region (7) of the first and second jointed shaft portions (2, 3) in particular by means of screw connections (8), which bearing lugs project in each case at one end beyond the respectively associated first or second jointed shaft portion (2, 3) and, in said projecting region (4a), hold between them a single-piece journal cross (6) which is mounted with in each case one journal (5) in an opening (10) of in each case one bearing lug (4), it is sought to provide a solution which permits the realisation of a Cardan joint which is of compact construction and nevertheless permits the transmission of high torques. This is achieved in that each bearing lug (4), at least in regions, engages in a positively locking and force-transmitting manner into in each case one of two recesses (12) formed diametrically oppositely in the fastening region (7) in the outer surface, in particular circumferential surface, of the first and of the second jointed shaft portion (2, 3).
F16D 3/38 - Joints de Hooke ou autres joints avec organe intermédiaire équivalent auquel chaque pièce d'accouplement est reliée par pivot ou par glissement avec un seul organe intermédiaire à tourillons ou paliers disposés sur deux axes perpendiculaires l'un à l'autre
B21B 35/14 - Broches d'accouplement ou d'entraînement, ou supports de broches spécialement adaptés aux laminoirs ou spécialement disposés dans ceux-ci
51.
METHOD FOR MAINTAINING AND/OR REPAIRING THE SPOUT AREA OF A METALLURGICAL VESSEL
The invention relates to a method for maintaining and/or repairing the spout area (1) of a metallurgical vessel, wherein a substantially hollow-cylindrical sleeve (3) in a perforated brick (2) of the metallurgical vessel is removed. In order to allow the sleeve to be replaced quickly and simply in the event of wear, the method according to the invention has the following steps: a) introducing at least one radially extending slit (4) into the sleeve (3), whereby the sleeve (3) is interrupted at at least one circumferential point (5); b) reaching behind the sleeve (3) or segments (3', 3'') thereof with a pulling tool (6); c) pulling the sleeve (3) or segments (3, 3'') thereof out of the perforated brick (2); and d) inserting a new sleeve (3) or a new brick material into the perforated brick (2).
The invention relates to an installation part for mounting an upper support roll in a roll stand. The installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole (130) extends, in the lower region of the installation part, in the direction of the drain side of the installation part. In order to be able to reduce the width in the lower region of the installation part and while guaranteeing the stability of the installation part, it is proposed according to the invention that the distance d from the centre point of the lubricant drain hole (130) to the vertical longitudinal centre plane LM of the installation part is ≤ half the diameter of the main hole and that - in the vertical longitudinal centre plane - the vertical minimum distance s from the counter face of a ring seal (400) in the lower region of the installation part to the horizontal tangential plane (500) at the top edge of the lubricant drain hole is not below a specified minimum clearance threshold value.
The invention relates to an installation part for mounting a lower support roll in a roll stand. The lower installation part has, on its cambered side, a lubricant receiving space, from which at least one lubricant drain hole 130 extends, in the lower region of the installation part, in the direction of the drain side of the installation part. Provided on the cambered side of the installation part is a seal holding ring for holding a round seal 400 for sealing the lubricant receiving space against the roll journal. In order to reduce the costs of producing the installation part and the costs incurred for maintaining the installation part, the invention proposes producing the installation part as one piece by means of casting with the seal holding ring 140.
With known trimming shears having a pair of scrap-cutting blades on the discharge side, the moving upper scrap-cutting blade must be moved as closely as possible past the trimmed plate edge in order to push the cutoff edge still hanging on the plate downward against the lower fixed scrap-cutting blade, which requires precise adjustment of the upper scrap-cutting blade. To that end, according to the invention, the distance between the upper scrap-cutting blade (2) or the lower scrap-cutting blade (3) and the trimming blade plane (5) is set prior to trimming in accordance with the thickness of each heavy plate (10) to be trimmed by displacement of the upper scrap-cutting blade (2) and/or the lower scrap-cutting blade (3) in a displacement direction with at least one component transverse to the trimming blade plane (5).
B23D 31/04 - Machines à cisailler ou dispositifs de cisaillage couverts par aucun ou par plusieurs des groupes Combinaisons de machines à cisailler pour ébavurer les pièces et en même temps découper les copeaux en petits morceaux
B23D 15/04 - Machines à cisailler ou dispositifs de cisaillage taillant au moyen de lames se déplaçant parallèlement les unes par rapport aux autres n'ayant qu'une lame mobile
B23D 31/00 - Machines à cisailler ou dispositifs de cisaillage couverts par aucun ou par plusieurs des groupes Combinaisons de machines à cisailler
B23D 35/00 - Outils des machines à cisailler ou des dispositifs de cisaillagePorte-outils ou mandrins pour ces outils
55.
ELECTRIC ARC FURNACE AND METHOD FOR OPERATING SAME
The invention relates to an electric arc furnace and a method for operating same. The electric arc furnace comprises a lower vessel and a lid 120 placed on said lower vessel. The lower vessel has a tapping device for tapping molten metal. At least one electrode protrudes through the lid into the interior of the electric arc furnace, said electrode being held by an electrode holding device. A voltage supply device 150 is provided for supplying an electric direct current or alternating current to the electrode 130. The aim of the invention is to allow a continuous operation of the electric arc furnace. This is achieved in that the electrode holding device has an electrode adjusting device for adjusting the electrode dependent on the wear of the electrode and an electrode nippling device for nippling the electrode during the operation of the electric arc furnace. According to the invention, both the electrode adjusting device as well as the electrode nippling device 144 operate when the supply voltage of the electrode is switched on.
Arc furnace with at least one furnace vessel, a furnace cover and a support arm system assigned to the furnace cover, said support arm system being designed so as to be capable of rotating and/or lifting and lowering the furnace cover onto the oven vessel via a rotating and/or lifting portal connected to the support arm system, and with at least one electrode support arm, which is designed to be capable of lifting and lowering an electrode through at least one passage opening in the furnace cover; with a single-acting hydraulic cylinder used on the piston side, which is connected to the base of the rotating and/or lifting portal at a first reception point and is rotatably mounted with a reception simulation assigned to the rotating and/or lifting portal at a second reception point, which is aligned in a line flush with the first reception point.
F27D 1/18 - Montures de portesPortes, couvercles ou couvercles amovibles
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
The invention relates to a blowing lance (2) for a BOF converter. A vibration sensor (5) is provided within the blowing lance (2) in order to detect the lance vibrations.
F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
G01F 23/22 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p. ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme en mesurant des variables physiques autres que les dimensions linéaires, la pression ou le poids, selon le niveau à mesurer, p. ex. par la différence de transfert de chaleur de vapeur ou d'eau
58.
ROLLING MILL DRIVE COMPRISING A TOOTHED ARTICULATED SPINDLE
The invention relates to a rolling mill drive (1) having an axially displaceable toothed articulated spindle (3) extending between a toothed articulated element (50) arranged between an interlocking chamber (20) on the roller side and a toothed articulated element (52) arranged in an interlocking chamber (40) on the transmission side, wherein at least one of the interlocking chambers (20, 40) is filled with a lubricating medium, wherein the lubricating medium pretensions the toothed articulated spindle (3) with an axial force (Fws) directed towards the roller side (WS).
The present invention relates to a stripper (11) for an operating roll of a rolling stand, in particular a hot-rolling stand, wherein the stripper (11) has a stripper tip (5) for making contact with an operating roll (1) of the rolling stand and a first screening element (8) for screening the material (10) being rolled against cooling water of the rolling stand is provided, wherein a second screening element (6) for screening the first screening element (8) against a thermal loading by the material (10) being rolled is provided.
The present invention relates to a roller line (1) for a continuous casting installation, comprising at least one roller body (4, 42), which has a roller surface (40) and is intended for forming a supporting length of the roller line, wherein the roller body has internal cooling (5, 50, 52, 54, 56) for cooling the roller surface (40), the internal cooling having at least two regions (b1, b2, b3) of different cooling output over the supporting length.
The invention relates to an insulating body (1) for protecting a radio sensor (2), preferably from hot metal sparks and spatters in smelting systems. According to the invention, the insulating body (1) comprises ceramic fibres that are bonded to each other by a binding agent. The insulating body (1) according to the invention further comprises a hollow space (7, 9) for accommodating and at least partially enclosing the radio sensor (2).
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
B28B 1/52 - Fabrication d'objets façonnés à partir du matériau spécialement adaptée à la fabrication d'objets à partir de mélanges contenant des fibres
B28B 23/00 - Aménagements spécialement adaptés à la fabrication d'objets façonnés avec des éléments complètement ou partiellement enrobés dans le matériau de moulage
G01K 1/12 - Dispositifs de protection, p. ex. étuis pour prévenir les dommages dus aux surcharges thermiques
In a method for processing iron(III) oxide (Fe2O3) obtained from a solution containing iron chloride by means of a hydrolysis step with a reduction of chloride groups (Cl-) adhering to the iron(III) oxide, the aim of the invention is to create a solution that makes it possible to remove adherent chloride from the iron(III) oxide obtained by means of the hydrolysis step in the processing of a solution containing iron chloride and at the same time to maintain a high specific surface area of the iron oxide. Said aim is achieved in that the iron oxide (Fe2O3) is treated in a leaching stage (2) with a basic solution (3) having a pH value > 7, preferably > 8.
The invention relates to a device and a method for depositing a metal coil (200) on two support points (110-1; 110-2). In order to avoid risks, in particular instability, while depositing metal coils having high residual stress, according to the invention the risk of an unstable position of equilibrium is checked, if a change in the relative position of the two support points (110-1; 110-2) with respect to one another is foreseeable, it is carried out such that the metal coil (200) comes to rest on both support points at least approximately in a stable position of equilibrium.
B23Q 17/00 - Agencements sur les machines-outils pour indiquer ou mesurer
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
64.
EXTRUSION DEVICE AND USE OF PIEZOELECTRIC ACTUATORS
The invention relates to an extrusion device, comprising a mould and an adjoining strand guiding system, wherein the mould is mounted movably with respect to a fixed bearing and wherein the mould as a whole is movable by means of at least one vibration generator. In order to achieve low-cost and reliable oscillation of the mould as a whole, it is proposed according to the invention that the vibration generator comprises a piezoelectric actuator.
The invention relates to a device (1) for measuring at least one tribological quantity of a sample (2), wherein a stationary sample container (3) having a second part of the sample (2") and a movable sample container (4) having a first part of the sample (2') are arranged in the device (1) in such a way that said sample containers can be moved relative to each other. In order to be able to test in particular sample parts that are exposed to an aggressive environment with respect to the tribological properties of said sample parts, an accommodating chamber (6) is provided, which is designed to accommodate at least part of the sample (2), preferably the complete sample (2), wherein the accommodating chamber (6) is at least partially sealed from the environment (U) and wherein means (7) for introducing a test gas (G) into the accommodating chamber (6) are provided.
The invention relates to a method for descaling a surface of a metal semi-finished product (2), in particular for descaling forging material or rolling material such as slab, thin slab, billets, hot strip, cold strip, pre-strip and/or long products made of steel and iron alloys, wherein the surface of the metal semi-finished product (2) is sprayed with a fluid under pressure that is greater than the atmospheric pressure and wherein the fluid is heated before being spraying on the surface of the metal semi-finished product. The invention further relates to a corresponding device for carrying out the method.
B21B 45/08 - 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 hydrauliquement
67.
COMBINED ROLL LOCK/ DRIVE SPINDLE HOLDER FOR ROLL SYSTEMS
Following the release of the lock on axially movable rolls, during a roll change for example, the necessary holding and/or clamping of the drive spindle heads is achieved with known devices by means of their own separate mechanical unit, which is hydraulically actuated and fastened to the base, to the roll upright or to the extension rails of the rolls. Due to the extremely restricted spatial conditions on the drive side of the rolls, a roll displacement arrangement with roll lock device and a drive spindle head holder on the drive side can often be realised only by means of complex, expansive and heavy structures. In order to structurally simplify, using suitable space and cost-saving means, the locking of the rolls and the holding of the drive spindle heads, and to enable both also on the drive side of the rolls under otherwise inadequate spatial conditions, the invention proposes combining the roll lock device (10) and the drive spindle head holder to form one compact structural unit (11), containing a swing bolt (12) rotatably arranged in a coaxial direction around the axial displacement cylinder (17), said swing bolt during operation of the roll system being swivelled in for locking and swivelled out for unlocking, wherein while the swing bolt (12) is being swivelled out, a side support arm (14), which is part of the swing bolt (12), is swivelled in as a support for the drive spindle head.
Using a method for producing a material block or material section cast from liquid metal, wherein the temperature distribution prevailing inside the material block or material section is calculated by means of a temperature calculation model based on dynamic temperature control (Dynamic Solidification Control), wherein in one calculation step, the total enthalpy of the system formed by the material block or material section is determined and processed as an input variable within the temperature calculation model, and one or more output variable(s) of the temperature control model is/are used in the control and/or management process of the casting process, a solution is created that permits an improved calculation and prediction of the temperature distribution within a material section or material block cast from liquid metal during the setting process and more particularly, with a continuous casting method or process, permits an improved calculation and prediction of the setting length (position of the liquid phase tip) in the setting metal strip. This is achieved by calculating the total enthalpy from the total of the free molar enthalpies (Gibbs free energy) of all phases and/or phase fractions currently existing within the material block or material section.
The invention relates to a method of flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills, in particular in continuous hot strip rolling mills, wherein for exchange of working rolls by opening a rolling stand, those are disengaged from a to be rolled hot strip. According to the invention a regulated strip tension that can substitute the tension of the open rolling stand, is applied to the to-be-rolled hot strip with at least one hold-down roller that is introduced in a rolling line.
The invention relates to a roller device (1), in particular for forming a strand-guiding segment (100) of a casting machine, comprising at least one roller element (10) mounted on roller bearings (20, 22), wherein two roller bearings are connected together via a crosspiece (30) comprising a line means for a medium.
B65G 39/00 - Rouleaux, p. ex. rouleaux d'entraînement, ou leurs aménagements incorporés dans des chemins de roulement ou dans d'autres types de transporteurs mécaniques
71.
DEVICE FOR SPRAYING COOLANT IN A METALLURGICAL PLANT
The invention relates to a device for spraying coolant in a metallurgical plant, comprising at least one feed (2) of a first substance and one feed (3) of a second substance, a mixing region (4) for mixing the at least two substances to form a coolant mixture, and an outlet (5) of the coolant mixture arranged downstream of the mixing region (4), wherein by means of a control element (7), the first substance flows into the mixing region (4) at least partially through a first nozzle element (8) in a first operating mode and flows into the mixing region at least partially through a second nozzle element (9) in a second operating mode.
B22D 11/124 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour le refroidissement
B05B 7/04 - Pistolets pulvérisateursAppareillages pour l'évacuation avec des dispositifs permettant le mélange de liquides ou d'autres matériaux fluides avant l'évacuation
72.
Method for foamed slag generation of a non-corrosive melt in a converter
In order to carry out foaming of a slag having a high ratio of chromium oxide having values of often above 20% of a non-corrosive melt in an AOD (Argon Oxygen Decarburization) or MRP (Metallurgical Refining Process) converter or CONARC SSt for stainless steel by adding a foam material, according to the invention a previously defined mixture (5) of a metal oxide, iron carrier, carbon and binding material in the form of pellets or briquettes (4) is introduced into the converter, which reacts in a chemically reducing manner under the slag layer (2) due to the high ambient temperature, wherein gaseous carbon monoxide formed in particular by means of the reduction process of the metal oxide with the carbon within the pellets or briquettes (4) induces the slag foaming with the gas bubbles (7) thereof and wherein the specific density of the pellets or briquettes (4) and the resolve time of the reduction process are selected so that optimal bubble formation in respect of size and duration is achieved.
EoB) are obtained by means of a submodel operating as a process monitor based on the exhaust gas analysis and independent of the process model, by sensibly combining the constituent signals obtained, by means of which values the oxygen content predicted by the process model is corrected at the start of the process and matched to the actual conditions near the end of the decoking period.
The present invention relates to a process for treatment of steel by heat treatment in a heat treatment furnace (2) and pickling in a steel pickle (3), where the waste process air from the steel pickle (3) is heated to the catalyst operating temperature and is fed to a catalyst (5) for reducing the nitrogen oxide concentration, where the waste process air passed through the catalyst (5) is fed as combustion air to at least one heating burner (20) of the heat treatment furnace (2). The invention further relates to a steel treatment plant (1) having a heat treatment furnace (2) for the heat treatment of steel, a steel pickle (3) for pickling the steel and a catalyst (5) for reducing the nitrogen oxide concentration of the waste process air coming from the steel pickle (3), where a heating device (6, 60) for heating the waste process air before the catalyst (5) is provided in order to heat the waste process air to the catalyst operating temperature, where a feed device (32) for feeding the waste process air passed through the catalyst (5) to at least one heating burner (20) of the heat treatment furnace (2) is provided.
B21B 45/06 - 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 des bandes de métal
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
C23G 3/02 - Appareils pour nettoyer ou décaper les matériaux métalliques pour le nettoyage des fils, rubans, filaments métalliques en continu
The present invention relates to a device for laterally sealing a strand or strip casting installation, which comprises at least one chain (1) with at least two successive metal blocks (3) that form links of the chain (1) and are for the lateral sealing of the casting installation. Furthermore, the device comprises at least one connecting part (5) for connecting two successive metal blocks (3) and a channel (7), which runs both through the at least two metal blocks (3) and through the at least one connecting part (5) and can be filled with a coolant. According to the invention, the connecting part (5) is formed substantially from metal and the device further comprises ball joints for connecting the at least two metal blocks (3) to the connecting part (5) connecting them.
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
76.
METHOD FOR STRAND CASTING A CAST STRAND, AND STRAND CASTING SYSTEM
The invention relates to a method for strand casting a cast strand (3) from metal, in particular steel. A mold (2) is used in a strand casting system (1), and molten metal can flow out downwards through said mold in a vertical manner in order to be shaped into the cast metal strand (3). The aim of the invention is to be able to cast strands without oscillating means and without casting powder while still being able to produce high-quality cast strands of any dimension. According to the invention, this is achieved in that the molten metal in the mold (2) is guided through two opposing boundaries for the metal, said boundaries being formed by two cooled continuous casting belts (5, 6). The lateral connecting regions between the casting belts (5, 6) are formed by lateral boundaries (12) that move with the casting belts. The cast strand (3) which is shaped by the casting belts (5, 6) and the lateral boundaries (12) and which still has a molten core (14) is conveyed directly below the mold (2) into a strand guide (4) comprising a plurality of strand guide segments. The cast strand (3) is supported by the rollers of the strand guide segments (7, 8) at least until the strand is completely solidified and is preferably deflected from the vertical (V) into the horizontal (H) in the strand guide. The invention further relates to a strand casting system for carrying out the method.
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
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
B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
77.
METALWORKING INSTALLATION, PARTICULARLY ROLLING MILL
The invention relates to a metalworking installation (1), particularly a rolling mill, comprising at least one rolling stand (2), wherein each rolling stand (2) comprises at least one drive (3) and/or at least one actuator (4) and/or at least one sensor (5), wherein the metalworking installation (1) has a device for automatic operation, wherein the device for automatic operation has at least one automation system (6) and wherein the at least one automation system (6) and the at least one drive (3) and/or at least one actuator (4) and/or at least one sensor (5) have a data transmission line (7) arranged between them. In order to reduce the complexity of the system for automation of the metalworking installation, the invention provides for the data transmission line (7) to be a field bus which is formed by an Ethernet with real-time capability.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
78.
TOOTHING FOR OPERATION AT A DEFLECTION ANGLE AND PRODUCTION METHOD
The invention relates to a toothing (1), in particular of a drive spindle for driving a roll (13) in rolling mills or continuous casting plants, which comprises several teeth (2) and meshes with a second toothing in the manner of a spline, wherein a flank line (12) of the teeth (2) has a curvature and a deflection angle is formed between the rotational axis of the second toothing and the rotational axis of the toothing, wherein the toothing (1) is designed as having at least one of the following modifications: a tooth root relief of the teeth (2), and/or a tooth tip relief of the teeth (2), and/or a twist of the teeth (2).
B21B 35/14 - Broches d'accouplement ou d'entraînement, ou supports de broches spécialement adaptés aux laminoirs ou spécialement disposés dans ceux-ci
F16D 3/18 - Joints universels dans lesquels la flexibilité est réalisée par pivots ou organes de liaisons coulissants ou roulants les pièces d'accouplement comportant des dents d'engrènement coulissant
79.
HOT-DIP COATING STATION WITH INTEGRATED GAS RECIRCULATION
The invention relates to a device for continuously hot-dip coating metal strip, in particular for galvanizing steel strip, in a molten metal bath (2). Said device comprises a roll (3) for guiding or deflecting the metal strip in the molten metal bath (2), said roll (3) comprising a roll member (5) and axially arranged roll journals (7) at the end of the roll member (5). The device further comprises at least one roll arm (9, 9') that comprises a bearing (10) for mounting one of the roll journals (7), said bearing (10) being sealable from the molten metal bath (2) by an inert gas. A gas separator (12) comprising a gas separation chamber (13) for trapping inert gas leaking from the bearing (10) is arranged between the bearing (10) for mounting the roll journal (7) and the roll member (5). According to the invention, the device also comprises means for evacuating the gases trapped in the gas separation chamber (13) from the molten metal bath (2), said means comprising a cavity (16) in the at least one roll arm (9'). The invention further relates to a corresponding method for discharging inert gases from a gas separator (12) of a hot-dip coating station.
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
80.
Support for a metal coil and apparatuses comprising such a support
The invention relates to a support for metal coils (1, 11, 31), wherein a metal coil (1, 11, 31) substantially has a circular circumference as viewed in cross section and the support comprises at least three support points (2, 2′, 12, 32), which are arranged in such a manner as to make contact with the metal coil (1, 11, 31) in the circumferential direction of the metal coil (1, 11, 31) when the metal coil (1, 11, 31) is laid on the support. The support permits particularly secure storage and/or transportation.
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
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
Method and device for cooling a working roll (10) during rolling for the production of material in strip form (12), wherein a coolant is applied to the circumference of the roll, and wherein the coolant is applied counter to the direction of rotation (21) of the working roll tangentially to the surface of the roll and, downstream of the application area of the coolant in the direction of rotation of the working roll, the coolant entrained by the drag effect and the dynamic pressure in the application area on the surface of the working roll is wiped off and forced back into the application area by sealing means (2).
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
82.
METHOD, COMPUTER PROGRAM AND ROLLING MILL TRAIN FOR ROLLING A METAL STRIP
The invention relates to a method, a computer program and a rolling mill train for cold rolling a metal strip (200). In order to achieve a shortening of undesired off-gauge lengths, the method according to the invention provides that the head (210) of the metal strip (200) already undergoes a thickness reduction at the first active rolling stand (n) in the rolling mill train, and then is transported on to the next rolling stand, in order to undergo a further thickness reduction there. The method according to the invention also provides for further reducing the initial pass thickness at the n-th rolling stand in accordance with the tensile stress that has built up in the meantime between the n+1-th and the n-th rolling stand.
The invention relates to a strand guide segment (1) of a strand guide (2) of a continuous casting installation (3), wherein the strand guide segment (1) comprises a support frame (4) in which a number of strand guide rollers (5) are mounted, wherein means (6) for detecting the elongation and/or the temperature of the support frame (4) are arranged inside the support frame (4). In order to obtain precise values regarding the temperature and/or the tension state of the support frame in an improved and simple manner, the invention proposes that the means (6) for detecting the elongation and/or temperature of the support frame (4) comprise at least one optical waveguide (7) which is arranged in the support frame (4) in the direction of the axis (a) of the strand guide roller (5) or perpendicular thereto in the strand conveying direction (F). The invention further relates to a method for operating a strand guide segment.
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
B22D 11/20 - Commande ou régulation des opérations ou du fonctionnement du retrait des barres coulées
G01K 1/02 - Moyens d’indication ou d’enregistrement spécialement adaptés aux thermomètres
G01K 11/32 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant des changements dans la transmittance, la diffusion ou la luminescence dans les fibres optiques
84.
METHOD FOR PROCESSING A CONTINUOUSLY CAST MATERIAL
The invention relates to a method for processing a continuously cast material, wherein the material is divided into individual units (2), in particular slabs, after the continuous casting in a continuous casting plant (1), wherein the units (2) are passed to a storage location (3) and, after a storage period, are transported from the storage location to a machining or treatment device (4) and are machined or treated there. In order to further machine or further process individual slabs in an ideal manner, according to the invention the temperature (T) or the temperature distribution is recorded at least at one location (5) for at least a number of units (2), wherein a thermal substitution model (6) is provided for the unit (2) in a computer (7) and the recorded temperature (T) or temperature distribution at the at least one location (5) is passed to the substitution model (6) as a constraint for the unit (2), wherein the further temperature gradation of the unit (2) is calculated by means of the thermal substitution model (6) at least for a period of time and is used as a basis for the subsequent machining or treatment of the unit (2).
B22D 11/16 - Commande ou régulation des opérations ou du fonctionnement
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
85.
METHOD FOR REGULATING THE HEIGHT OF THE CASTING LEVEL IN A MOLD OF A CONTINUOUS CASTING INSTALLATION
The invention relates to a method for regulating the height (h) of the casting level (1) in a mold (2) of a continuous casting installation (3), wherein liquid metal (4) flows into the mold (2), wherein the outflow of liquid metal (4) into the mold (2) can be controlled by a control element (8), the volume flow of liquid metal (4) flowing into the mold (2) being measured by a flow sensor (9), the volume flow being regulated in a first regulating circuit on the basis of a nominal value, the height (h) of the casting level (1) being regulated in a second regulating circuit on the basis of a nominal value or a nominal range (hsoll). According to the invention, a second controller (11) provides the first regulating circuit with a nominal value regarding the volume flow, wherein the determination of the actual height (hist) of the casting level (1) is carried out while taking into account a standing wave on the casting level (1) preferably by means of a number of optical waveguides (12). In this way, the height of the casting level can be kept constant in the mold in an improved manner.
The invention relates to a measuring device, a rolling stand and a method for detecting the level of a roll nip between two working rolls in the rolling stand. In order to ensure high measuring accuracy of a roll nip sensor even in the event of a horizontal displacement of the working rolls in or counter to the rolling direction, it is proposed according to the invention for the roll nip sensor 110 to follow the working rolls in the event of a displacement in or counter to the rolling direction, such that, even in a new or displaced end position of the working rolls, a suitable relative position, which is necessary for high measuring accuracy, between the roll nip sensor and the working rolls is ensured.
B21B 38/10 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer l'écartement des cylindres, p. ex. indicateurs de l'emprise
The invention relates to a reduction furnace, in particular for silicon production, comprising a furnace casing (3) and a plurality of electrodes (1a, 1b), in particular of a circular cross section, which are arranged in the furnace casing in a defined arrangement in relation to one another, in particular along an arc of a circle (2), wherein at least one of the electrodes (1a, 1b) is formed as a bundle of electrodes comprising a number of individual electrodes (1a, 1b), in particular as a double electrode.
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
C01B 33/035 - Préparation par décomposition ou réduction de composés de silicium gazeux ou vaporisés autres que la silice ou un matériau contenant de la silice par décomposition ou réduction de composés de silicium gazeux ou vaporisés en présence de filaments chauffés de silicium, de carbone ou d'un métal réfractaire, p. ex. de tantale ou de tungstène, ou en présence de tiges de silicium chauffées sur lesquelles le silicium formé se dépose avec obtention d'une tige de silicium, p. ex. procédé Siemens
The invention relates to a compression rolling mill for compressing a metal strand sideways, having a pair of mutually engaging rollers (9, 10), arranged perpendicular to the center axes, connected to a rotary drive (31, 32; 34) by means of articulated shafts (29, 30), characterized in that the two rollers (9, 10) are connected to the rotary drive (31, 32; 34) by means of a gearbox (27, 28) adjustable together with the rollers (9, 10) and by means of articulated shafts (29, 30) each connected to one of the two gearboxes (27, 28), wherein the articulated shafts (29, 30) are inclined at an acute angle to the horizontal.
The invention relates to a method for controlling a lateral guiding device for a metal strip (1), the lateral guiding device comprising a guide (2, 4) disposed laterally to the metal band (1) on both sides thereof, it being possible for the two guides (2, 4) to be displaced independently of each other, and both guides (2, 4) being operated in a position-controlled manner, forces of the metal strip that act on a first guide (2) of the two guides (2, 4) and on a second guide (4) of the two guides (2, 4) being measured, and the target position for the first and/or the second guide (2, 4) being controlled as a function of the forces measured at the first and at the second guide (2, 4), such that the lesser value of the forces measured at the first guide (2) and at the second guide (4) is above a selectable lower limit force and below a selectable upper limit force.
The invention relates to a method for rolling strip-shaped rolling stock, in particular metal strip. This method is characterized substantially by the following procedure: the metal strip A exiting the pickling line passes through the two roll stands (3, 4) of the reversing roll stand, wherein the start of a subsequent metal strip B has already been welded to the strip end of the metal strip A before entering the pickling line (5), said start of the metal strip B is then rolled as well, specifically over a length corresponding to the wind-on length until tension is built up on the reel and likewise rims on the reversing reel (1), during the subsequent reversing the metal strip B is separated from the metal strip A such that the already rolled start of the metal strip B remains on the still unrolled remaining metal strip B, then the complete metal strip A is reverse-rolled.
B21B 1/32 - 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 non continu dans des laminoirs réversibles, p. ex. avec des bobines de stockage intermédiaires pour accumuler le matériau travaillé
91.
Method for controlling side guides of a metal strip
The invention relates to a method for controlling a side guide of a metal strip (1), in particular in the inlet or outlet of roll stands or driving apparatuses, wherein the side guide comprises a guide (2, 4) disposed laterally to the metal strip (1) on both sides of the metal strip (1), and the guides (2, 4) can be displaced independently of each other. One of the guides (2) is thereby driven by means of position control, and a second of the guides (4) is driven by means of force control, wherein forces of the metal strip (1) acting on the first guide (2) and the second guide (4) are measured. The target force for the second, force-controlled guide (4) is thereby prescribed as a function of the measured force on the first, position-controlled guide (2), wherein as the force on the first, position-controlled guide (2) increases, the target force for the second, force-controlled guide (4) is reduced. In particular, damage to the guides (2, 4) and to the metal strip (1) can be prevented or at least reduced by means of said type of controlling.
The invention relates to a method and to a vertical continuous casting system (1) for producing thick slabs from a metallic melt, wherein a steel strand having a core that is still liquid is cast in a vertical mold (2), is transported further in a subsequent strand guidance unit comprising a plurality of strand guidance segments (n1bis) having at least some strand guidance rollers (5; 5a, 5b) driven and/or applied therein, and is divided after complete solidification by a severing device (10) into slab lengths (11a), which are then discharged. In order to produce steel strands (11) having a thickness greater than 300 mm, in particular between 400 and 800 mm, and having format widths of 900 to 3200 mm, the deviation of the steel strand from the vertical is recorded, without supporting and guiding the completely solidified steel strand (11), in a system section (7) that follows the strand guidance unit, and the steel strand is bent back to the vertical by increasing or reducing the application forces and/or changing the positions of strand guide rollers (5a; 5b) upstream or downstream of the unsupported system section (7) before the steel strand (11) has reached the severing device (10).
B22D 11/14 - Installations pour la coulée continue, p. ex. pour tirer la barre vers le haut
B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
93.
METHOD FOR OPERATING AT LEAST ONE SUPERSONIC NOZZLE IN A METALLURGICAL VESSEL, METHOD FOR DETERMINING A PRESSURE LOSS AND SYSTEM FOR DETERMINING OPERATING PARAMETERS OF AT LEAST ONE SUPERSONIC NOZZLE
The present invention relates to a method for operating at least one supersonic nozzle (40) in a metallurgical vessel (3), comprising the following steps: measuring the inlet pressure (po(t)) of a gas into a supersonic nozzle (40); simultaneously measuring the feed pressure (pvs(t)) of the gas at a gas feed station (1) arranged at a distance from the supersonic nozzle (40); determining a calibration curve (po(t)=f(pvs(t))) from the measured inlet pressure (po(t)) and the measured feed pressure (pvs(t)); and operating the supersonic nozzle (40) in the metallurgical vessel at a predefined inlet pressure (po) by regulating the feed pressure (pvs) on the basis of the determined calibration curve.
a, respectively) of the fastening bracket (14 and 15, respectively) with zero clearance, said bracket in turn abutting a tab (22) welded to the flanges of the fastening bracket and bridging same. The wedge (20) is actively connected to the tab (22) by means of a bolted connection (21).
The present application relates to a device (1) for removing a sample (24) from a coil (2), comprising at least one base roll unit (30, 32) for storing the coil (2) during sample collection, at least one contact roll unit (40, 42) which can be pressed against the lateral surface of the coil (2) and at least one band binding device (60) for binding the coils (2) stored on the at least one bottom roll unit (30, 32). The present application further relates to a device (V) for removing a sample (24) from a coil (2), comprising a deflection device (70) for deflecting the material catch (20) of the coil (2) from the layer (22) located beneath, wherein the deflection device (70) is designed in such a manner that the band start (20) of the coil (2) can be deflected only resiliently from the layer (22) located beneath. The invention further relates to the corresponding methods.
An apparatus for controlling a metallurgical installation, comprising a plurality of operating components (5), wherein at least one of the operating components (5) comprises a sensor element (8) for acquiring measurement data relating to a measurement variable, in particular pressure and/or temperature, and wherein the measurement data can be transmitted from the sensor element (8) to a spatially separate, computer-controlled evaluation system (6, 7), wherein the sensor element is in the form of an integrated sensor transponder (8), and wherein the measurement data are transmitted from the sensor transponder (8) to the evaluation system (6, 7) wirelessly by means of radio waves.
After restarting the vertical continuous casting system for slabs and blooms, a cold strand (6) on the roller conveyor (3) is decoupled from the casting strand, erected into a vertical position, lifted to a casting platform level (9), and locked and processed there in order, for example, to remove the crop end or to adapt the crop end to other formats by changing the head, whereupon the cold strand (6) is inserted into the continuous casting mold from above in order to close the continuous casting mold (1) before the start of casting. In order to specify a low-cost and simplified solution for said cold strand circulation (7) that occurs, the steps to be carried out consecutively with the cold strand (6), namely erecting the cold strand from the horizontal roller conveyor (3), lifting the cold strand to the casting platform level (9), locking and processing the cold strand in the vertical position, transporting the cold strand to the continuous casting mold (1), and reinserting the cold strand into the continuous casting mold (1), are centrally combined and fulfilled by means of an appropriately designed transport and maintenance cart (10) arranged at the casting platform level (9) as the sole transporting and processing means. By means of said measure of the invention, an overhead crane, a mobile crane, external locking of the cold strand, separate cold strand head storage, and mobile work platforms are advantageously not required, because all functions are combined on the special transport and maintenance cart. This spares interfaces, cost, and space on the casting platform.
The invention relates to a device and a method for inspecting a continuous casting installation (1). The device comprises a running element (5) for running through the continuous casting installation (1), and a sensor element (7), arranged on the running element (5), wherein a property of a cooling nozzle (4) of the continuous casting installation can be measured by means of the sensor element (7), and wherein the sensor element (7) comprises an optoelectronic sensor (9), in particular a video camera.
The invention relates to a device for controlling the electrode of an electric arc reduction furnace, comprising a vertically oriented electrode (4), which can be inserted into a vessel (1) of the reduction furnace from above, wherein the electrode (4) is retained using a counterweight (12) by means of a supporting cable (7), and wherein the supporting cable (7) can be driven by means of an electric motor (10), wherein the mass of the counterweight (12) can be varied.
The invention relates to a transporting system for transporting stock (100) to be rolled between at least two processing lines (10, 20, 10'), said transporting system comprising at least two shuttles (30, 30', 34, 34') for transporting the stock to be rolled. The shuttles are arranged such that the stock to be rolled can be transferred from one shuttle to at least one other shuttle.
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
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