A mandrel for winding sheet metal has a generally tubular mandrel body extending along and centered on an axis and formed at one end with a plurality of radially throughgoing and angularly spaced apertures each having a pair of closed and axially confronting end faces, a spreading bar extending axially inside the body and having a respective pivot adjacent each of the apertures, respective rigid links extending through the apertures and having inner ends carried on the respective pivots and outer ends projecting outside the body, and respective segments outside the body and each pivoted on the outer end of a respective one of the links. Respective pressure plates are operatively connected at the one end between the segments and the mandrel body.
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
In a method for operating a converter (1), in which the converter (1) is mounted in a carrying ring (3) by means of carrying journals (2), a gear mechanism (4) is mounted in a floating manner on the carrying journals (2), the converter (1) is configured, as a result, such that it can tilt about its horizontal axis and the gear mechanism (4) is connected rigidly to a pedestal (6) by a torque support (5), the torque support (5) connects the gear mechanism (4) to the pedestal (6) during the tilting operation of the converter (1), and the torque support (5) is released from the pedestal (6) or from the gear mechanism (4) or from both during operation of the converter (1).
The invention relates to a method for rolling up a metallic strip (1), in particular a steel strip, to a coil (2), the strip (1) being kept under longitudinal tension between a driver (3), consisting of at least one driver top roll (4) and at least one driver bottom roll (5), and a winding pin (6). The strip (1) is rolled up on the winding pin (6) to form the coil (2). In order to prevent the undesired opening of the wound coil in a simple manner, a bending moment (MB) is initiated in the strip, said bending moment acting perpendicular to the longitudinal direction of the strip (1) and causing a plastic deformation when a defined remaining length of the strip (1) is reached. The invention also relates to a device for rolling up a metallic strip.
The invention relates to a device for guiding a metal band (200) in the environment of a reeling unit, and to a method for operating such a device. The device according to the invention comprises a support frame (160), which is pivotally mounted on the first end thereof about a second pivoting axis (D2) in relation to a stationary part (400) and carries a transfer table (120), and which is pivotally connected about a first pivot axis at the second end opposite of the first end by means of a swivel frame (140). The swivel frame carries a first transfer table at the end opposite of the pivoting axis (D1). Both the support frame (160) and the swivel frame (140) are actuated by means of dedicated actuating members and are positioned in a suitable manner depending on the desired operating position. The device according to the invention is advantageously universally suitable, which is to say it can be displaced into many different operating positions.
The invention relates to a casting roll (1) for the casting of metal strip in the casting gap between two casting rolls with variable separation which are parallel and which can be cooled. The casting roll comprises a roll axle (3) with a roll casing (2) surrounding said axle and with adjustable convexity of the peripheral surface of said roll casing during operation by means of a hydraulic pressure cushion (14). The rotatable roll axle (3) is designed with a cylinder (9), comprising a piston (10), on at least one side (5, 7) of the casting roll (1), and a power system (11) is provided for exertion via the pistons (10) on the pressure medium to influence the convexity of the roll casing (2).
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
F16B 13/00 - Chevilles ou autres dispositifs fixés à des parois ou autres emplacements par insertion dans des trous préparés à cet effet
To improve and further develop the heat treatment of the weld and the joining weld regions (6, 7) before and behind the actual welding by means of a laser, which is carried out during welding of steel sheets (2) to minimize the risk of crack formation or alteration of the microstructure in the region of the weld, it is proposed according to the invention that the heating of the region of the weld (6, 7) be carried out by means of a multiply stepped line inductor (4, 5) which can be set in a defined way and has zones of different power densities and is configured with a multiple division of its conductor loop lengths and/or with different plating of the conductor loops and/or with a plurality of spacing steps from the steel strip (2). Here, a steeper temperature rise occurs in the first heating stage than in the subsequent heating stage.
C21D 9/50 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour joints de soudure
The invention relates to a metallurgical vessel (1), in particular an arc furnace, having a holding container (2) for metal melt and having a lid (3), by means of which the holding container (2) can be at least partially covered, wherein the metallurgical vessel also has at least one lance (4, 5) for the supply of a medium into the metallurgical vessel (1), and wherein the at least one lance (4, 5) is pivotably arranged on or in the metallurgical vessel (1). In order to be able to introduce a medium into the interior of the furnace in an improved manner, the invention provides that at least one lance (4, 5) is arranged in the region of the lid (3) of the metallurgical vessel (1) on a revolute joint (6) which has a rotational axis aligned in a horizontal direction (H).
F27B 3/22 - Aménagement des dispositifs d'alimentation en air ou gaz
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
In the case of a method for dividing metal strip, by means of shears (1) for dividing up metal strips (7) transversely in relation to the strip running direction in strip plants, wherein an upper cutter carrier (4) and a lower cutter carrier (2) on one side have an upper cutter (5) and a lower cutter (3) and on the other side are mounted on a common rotational spindle (6) and the metal strip (7) is at a standstill during the cutting operation, and wherein the upper cutter is formed in a stationary manner and the lower cutter is formed in a movable manner, the lower cutter (3) performs an arcuate movement towards the stationary upper cutter (5). The invention also relates to a device for carrying out the method according to the invention.
The invention relates to a method and a control device for controlling the heat removal q in the case of a mould 200 for the casting of metal. By suitable variation of the flow V of a cooling medium 300 through the side plate of a mould, heat removal from the side plate is adjusted to a predetermined setpoint value qSoll. In order not to have to adapt the control of the heat removal to different thicknesses or coatings of the side plates every time that different moulds are used or to changed adjustments of the side plates during the casting operation or to different grades of steel that may be cast, it is proposed according to the invention to calculate in real time the actual value for the heat removal q during stationary casting operation suitably for the cooling medium in each case, inter alia from the difference between the temperature of the cooling medium 300 at the coolant outlet and at the coolant inlet of the side plate 200 and also from material constants.
The invention relates to a method for the continuous or discontinuous extraction of a metal, or of multiple metals from a slag containing the metal, or a compound of the metal, wherein the liquefied metal containing slag is heated in a primary or secondary melting unit (1). In order to provide an improved method for the recovery of particularly copper from slag, the invention provides that the metal containing slag is heated in a primary or secondary melting unit (1) configured as an AC electric furnace, and the melt is subsequently transferred in a furnace (2) configured as a DC electric furnace by means of the primary or secondary melting unit (1), in which an electrolytic separation of the metal to be extracted is carried out, wherein a reduction agent in the form of calcium silicide (CaSi), calcium carbide (CaC2), ferro silicon (FeSi), aluminum (AI), and/or reduction gases is added to, and/or injected into the primary or secondary melting unit (1).
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
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 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
The invention relates to a sealing gate (1) for strips for sealing a first chamber (2) in relation to a second chamber (3), a strip (4), in particular a metal strip, passing through both chambers (2, 3) and at least one sealing element (5) being provided for sealing the chambers (2, 3). The aim of the invention is to achieve an effective sealing action. To achieve this, the sealing element (5) has at least two gate elements (6, 7, 8, 9) that can be displaced in relation to one another and that have at least one sealing surface (10, 11, 12, 13), which is adapted to the edge contour of the strip (4) to be sealed.
B01J 3/00 - Procédés utilisant une pression supérieure ou inférieure à la pression atmosphérique pour obtenir des modifications chimiques ou physiques de la matièreAppareils à cet effet
B01J 3/03 - Récipients sous pression, ou récipients sous vide, comportant des organes de fermeture ou des joints d'étanchéité spécialement adaptés à cet effet
C23C 14/56 - Appareillage spécialement adapté au revêtement en continuDispositifs pour maintenir le vide, p. ex. fermeture étanche
The invention relates to a strip sealing gate (1) for sealing a first chamber (2) with a first pressure level (p1) in relation to a second chamber (3) with a second pressure level (p2) that differs from the first, a strip (4), in particular a metal strip, passing through both chambers (2, 3). According to the invention, at least two rollers (5, 6) are provided for sealing the chambers (2, 3), said rollers resting in a sealing manner on either side of the strip (4). The aim of the invention is to improve the sealing action. To achieve this, at least some sections of the circumference of at least one of the rollers (5, 6) are covered with a flexible elastic material (7) and said roller or rollers (5, 6) have an inner core (8) that is covered with a jacket consisting of the flexible elastic material (7). A central region (9) of the inner core (8) has a cylindrical contour (10) and the edge regions (11, 12) of the core (8) are flared.
B01J 3/00 - Procédés utilisant une pression supérieure ou inférieure à la pression atmosphérique pour obtenir des modifications chimiques ou physiques de la matièreAppareils à cet effet
B01J 3/03 - Récipients sous pression, ou récipients sous vide, comportant des organes de fermeture ou des joints d'étanchéité spécialement adaptés à cet effet
C23C 14/56 - Appareillage spécialement adapté au revêtement en continuDispositifs pour maintenir le vide, p. ex. fermeture étanche
The invention relates to a belt discharger (1) for sealing a first space (2) with respect to a second space (3), the two spaces (2, 3) being passed by a belt (4), especially a metal belt, the spaces (2, 3) being sealed through provision of at least two rollers (5, 6) which adjoin the belt (4) with sealing on both sides. In order to achieve improved sealing action, the invention envisages that at least one roller (5, 6), in one of its axial end regions (7), has a sealing element (8) which is designed to laterally adjoin the belt edge (9) of the belt (4), with provision of adjustment means (10) with which the roller (5, 6) including sealing element (8) can be positioned in axial direction (a).
B01J 3/00 - Procédés utilisant une pression supérieure ou inférieure à la pression atmosphérique pour obtenir des modifications chimiques ou physiques de la matièreAppareils à cet effet
B01J 3/03 - Récipients sous pression, ou récipients sous vide, comportant des organes de fermeture ou des joints d'étanchéité spécialement adaptés à cet effet
C23C 14/56 - Appareillage spécialement adapté au revêtement en continuDispositifs pour maintenir le vide, p. ex. fermeture étanche
The invention relates to an extrusion die having mold plates surrounding the casting cross-section, in which cooling canals extend, wherein the mold plates are connected to a water box by means of screw elements, and the screw elements are made of securing bolts having a threaded shaft, which can be screwed into securing threads in the mold plate. In order to achieve uniform cooling in such an extrusion die, the securing threads with the longitudinal center axes thereof are each disposed such that they extend between two adjacent coolant channels, wherein the diameter of each threaded bore is larger than the distance between two adjacent cooling channels, and the bores for the securing threads end at a distance to the bottom of the cooling channels, limiting the screw-in depth of the securing bolts.
The invention relates to a device and a method for supporting and guiding a cast strand in a strand guiding device (100) after leaving a continuous casting mould. The strand guiding device (100) comprises at least one segment, which has a first roller bridge (114-1) on one wide side of the cast strand and a second roller bridge (114-2) on the opposite wide side of the cast strand, wherein at least one roller is rotatably mounted respectively on the first and second roller bridges to support and guide the cast strand. To allow the guidance of the strand and the strand to be made more flexible, it is proposed according to the invention to provide at least a first setting element (118-3) for connecting the first roller bridge (114-1) to a first fixed land and for individually positioning the first roller bridge with respect to the neutral phase (N) of the cast strand, and at least a second setting element (118-2) for connecting the second roller bridge (114-2) to a second fixed land and for individually positioning the second roller bridge with respect to the neutral phase (N) of the cast strand.
The invention relates to a rolling stand (1) with supporting and/or working rolls (2, 3, 4, 5) for rolling metal sheets (6) or strips, comprising at least one rest bar (8), arranged between the working roll chocks (7) and preferably assigned to the upper roll (3), and comprising an inlet/outlet duct (9), for example for cooling water or the like, arranged alongside the rest bar (8), and also comprising sealing means (10) for preventing cooling water, for example, from dripping down onto the rolled stock. It is in this case provided according to the invention that the sealing means (10) for preventing cooling water, for example, from dripping down onto the rolled stock is formed as at least one sealing strip (11) arranged between the rest bar (8) and the inlet/outlet duct (9).
The invention relates to a device (1) for measuring the tension in a metallic strip, in particular in a steel strip, which has a planar, sheet-like table (2), over which the metallic strip can run and at the one end (3) of which a multiplicity of measuring elements (4) suitable for measuring the tension of the strip are arranged, wherein cooling elements (5) are provided, arranged under the table (2), and allow cooling liquid, in particular water, to be directed into the region of the measuring element (4). To provide a simple means for preventing the table from bending, it is provided according to the invention that the cooling elements (5) have a box-shaped cooling liquid tank (6), which is arranged on both sides of the metallic strip on at least one support element, wherein the table (2) rests indirectly or directly with its underside on the box-shaped cooling liquid tank (6).
B21B 38/06 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la tension ou la compression
G01B 5/28 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer la rugosité ou l'irrégularité des surfaces
G01L 5/04 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la tension dans les éléments flexibles, p. ex. dans les cordages, les câbles, les fils métalliques, les filaments, les courroies ou les bandes
18.
DEVICE FOR RESONANCE OSCILLATION AND A METHOD FOR PRODUCING SAID DEVICE
The invention relates to an oscillation device for continuous casting dies (1) for casting liquid metal, particularly liquid steel, with at least one spring (5) made of fiber composite material which supports the continuous casting die (1) and which runs between a fixed die frame (2) and a linking/clamping position (4). The device also has at least one drive device for moving the spring (5) and the continuous casting die (1) supported by the spring (5) in controlled oscillations - for example, resonance oscillations. The spring (5) is seamlessly wrapped as one piece with at least two layers of fiber composite material (11) which are separated from each other. The invention also relates to a method for producing such a spring.
In a method for operating a converter (1), in which the converter (1) is mounted in a carrying ring (3) by means of carrying journals (2), a gear mechanism (4) is mounted in a floating manner on the carrying journals (2), the converter (1) is configured, as a result, such that it can tilt about its horizontal axis and the gear mechanism (4) is connected rigidly to a pedestal (6) by a torque support (5), the torque support (5) connects the gear mechanism (4) to the pedestal (6) during the tilting operation of the converter (1), and the torque support (5) is released from the pedestal (6) or from the gear mechanism (4) or from both during operation of the converter (1).
The invention relates to a method and an apparatus for winding up metal strips (2) onto a winding mandrel (3), which is arranged in a reeling shaft (1) and to which the metal strip is passed by a driver having a lower and an upper driver roller (5, 6), wherein a table (7) is provided underneath the metal strip (2) for guidance and a pivotable strip diverter and, adjoining the latter almost up to the winding mandrel (3), a pivotable shaft flap (11) are arranged above the metal strip. By measuring the strip tension in the reeling shaft, it is intended to regulate the driver in such a way that the running of the strip makes it possible for the metal strip to be wound up to form a coil with straight edges. To achieve this, the longitudinal tensile force exerted on the metal strip (2) by the driver is determined by means of a strip tension measuring device (13), which dips into the metal strip from above in the reeling shaft (1), and the measuring signal is passed to a driver regulating device (22) to control the running of the strip by the driver. In the case of an apparatus suitable for this purpose, the strip diverter is formed as a strip tension measuring device (13) which dips into the metal strip (2) from above and is provided with a diverter body, which has a rotatably mounted roller arm (16), carrying a roller (17) at its front end, wherein a force measuring means (20) that is connected in signalling terms to the regulating device (22) is arranged between the diverter body and the roller arm (16).
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
21.
METHOD AND DEVICE FOR WINDING METAL STRIPS ONTO A COILING MANDREL
The invention relates to a method and a device for winding metal strips (13) onto a coiling mandrel (4) which is disposed in a coiler shaft (3) and to which the metal strip is fed by a driver (2) encompassing a bottom and a top drive roller (6, 7) in a driver frame (5). A bench (11) is provided below the metal strip (13) for guiding purposes while a strip switch (17) and a swiveling shaft flap (19) are arranged above the metal strip, the shaft flap (19) adjoining the strip switch (17) to the vicinity of the coiling mandrel. In order to regulate the driver (2) in such a way by measuring the strip tension that the strip run allows the metal strip (13) to be coiled into a straight-edged coil (14), the longitudinal tensile strength applied to the metal strip (13) by the driver (2) to control the strip run through the driver is determined by means of a strip tension measuring device (10) which is mounted on the driver frame (5), in a pivot located shortly behind the bottom drive roller (7), and can be swiveled into the metal strip (13) from below. Said strip tension measuring device (10) is composed of a first lever arm (10a) that is mounted in a pivot at the rear of the driver frame (5) as well as a second lever arm (10b) which is hingedly mounted at the front of the first lever arm (10a) and the forward end of which is provided with a roller (23). A force measuring means (24) is placed between the first lever arm (10a) and the second lever arm (10b).
B21C 47/06 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile avec des rouleaux ou des chevilles d'appui ou des moyens équivalents maintenant le matériau sur la bobine ou le tambour
B21C 47/34 - Dispositifs d'alimentation ou de guidage non spécialement adaptés à un type particulier d'appareil
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
B21B 38/02 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la planéité ou le profil des bandes
The invention relates to a pair of double trimming shears, with a fixed lower blade and an upper blade which is driven in such a way that it can be raised and lowered by means of eccentric shafts together with connecting rods, wherein each connecting rod is arranged on an eccentric shaft of its own and, on account of different crank radii, their offset and different connecting rod lengths, the upper blade performs a rolling cutting motion, which is guided by a sliding block; the length of the connecting rods is variable.
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 15/12 - Machines à cisailler ou dispositifs de cisaillage taillant au moyen de lames se déplaçant parallèlement les unes par rapport aux autres caractérisés par leur entraînement ou transmission
B23D 15/08 - Cisailles à tôles comportant une lame se déplaçant dans un seul plan, p. ex. perpendiculairement à la surface de la tôle
The invention relates to a hold-down device for plate shears, which can be pressed down onto a plate to be cut by a mechanically controlled, non-variable displacement. The invention is based on the object of providing a hold-down device which can be altered in terms of the pressing force and consequently permits a longer edge life and shorter displacements, and in turn lower indexing times. This object is achieved according to the invention by it being possible to set the starting position of the hold-down device before the beginning of the displacement.
The invention relates to a method for operating a melt-metallurgic furnace (2), particularly an arc furnace, during the operation of which a number of operating parameters are maintained within predetermined thresholds, wherein for this purpose a control or regulating device (1) is utilized. In order to obtain greater efficiency of the furnace, the invention provides that the control or regulating device (1) has a conventional control or regulating device (9) and a fuzzy regulating device (10), which each feed their correcting variables to a mediator (11), wherein the mediator (11) calculates the actuating signal used according to a predetermined weighting factor (F) from the correcting variable coming from the conventional control or regulating device (9) and from the fuzzy regulating device (10). The invention further relates to a melt-metallurgic furnace, particularly an arc furnace.
The invention relates to a method for the continuous casting of a metal strand (1), in which the cast strand (1) leaves a die (2) vertically or arcuately downwards and is subsequently guided in a strand guide (3), wherein the strand guide (3) has a number of pairs of rollers (4), which define between them an adjustable roller nip (5), and wherein, at the start of casting, to close the die (2) in the downward direction, a piece of strand (6) is introduced into the die (2) and is followed by the cast strand (1). In order to improve the adjustment of the roller nip, the invention provides that the piece of strand (6), which is produced with a defined or calibrated thickness (d), is inserted between the respective pairs of rollers to calibrate and/or measure the roller nip (5).
The invention relates to a device for keeping warm slabs (3) emerging from a continuous casting installation, which can be transported on a roller table (1) for further processing. In order to optimize the thermal balance between the continuous casting installation and the hot-rolling mill, it is proposed to provide a supporting part (2), for receiving a slab (3), which can be placed on the roller table (1) and conveyed on it, and also an insulating box (4), which can be placed onto the supporting part (2) and largely encloses the latter.
The invention relates to a strand guiding device and a method for guiding a metal strip, in particular a metal strip that has not yet solidified right through, in a continuous casting installation. Known strand guiding devices comprise a segment frame and at least one pair of opposing guiding rollers, between which the metal strip is guided. At least one of the guiding rollers takes the form of at least two part-rollers 122, 124 arranged next to each other. The part-rollers are mounted on the segment frame 110 by means of two outer bearings 132, 134 and at least one common intermediate bearing 133. To provide at least partial compensation for the segment frame 110 springing up or bending, caused indirectly by the ferrostatic pressure in the interior of the metal strip that has not yet solidified right through and occurring in particular in the region of the intermediate bearing 133 during the transport of the metal strip between the guiding rollers 120, three different means are proposed according to the invention, means which can also be used in combination with one another. These means are a bowing of the intermediately mounted guiding roller and/or a more yielding form of the outer bearings 132, 134 in comparison with the intermediate bearing 133 and/or a greater distance A1 between the segment frame 110 and the centre axis M of the part-rollers 122, 124 in the case of the intermediate bearing 133 in comparison with the outer bearings 132, 134.
The invention relates to a coiling furnace (1), especially a coiling furnace (1) for Steckel rolling mills, wherein a hot-rolled strip (2) is coiled and uncoiled and optionally heated on a furnace drum (3) in the furnace interior (4) in a reversing manner. Said coiling furnace comprises guide tables (6) mounted on the mobile furnace door (5) of the coiling furnace (1) for inserting and/or guiding the heat-rolled strip (2), the furnace door (5) and the coiling furnace (1) being separate units. The furnace door (5) is arranged on a part of a roller rack (6) below the coiling furnace (1) and the furnace door (5) is subdivided into at least two elements (8, 9) that swing in relation to one another, both door elements (8, 9) being interconnected via a door bearing (10) and being configured to be pivoted. The invention is characterized in that the coiling furnace (1), in its interior (4), is configured with only one furnace roller (11) to allow complete insertion of the strip into the coiling furnace without the risk of the strip coming undone. For withdrawal of the strip a cover plate is placed on the door element and there is no need for a stripper.
C21D 9/68 - Fours de bobinageAppareils bobineurs à chaud
B21B 1/34 - 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 par laminage à chaud
B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
A carousel coiler with two coilers, which are mounted in a rotatable rotor, are rotatably driven independently of each other, are intended for the successive, continuous winding of metal strip and each have spray heads, which comprise a number of segments that can be moved in a spreading manner, are supported on axially displaceable wedge-shaped directing surfaces and on which the coilers can be cyclically moved in each case from a starting position into a strip-coil transfer position by turning of the rotor, is to be developed in such a way that a pivot-into-place outside bearing becomes superfluous, that the coil or the coil to be wound is always supported on both sides in every position, and that the carousel coiler can be used both for winding up and unwinding coils. For this purpose, it is proposed that the rotor comprises two rotor discs (2, 2'), which are opposite each other and connected to each other by at least one hollow cross-member (3) and that the rotor carries at least two double spray-head coilers.
B21C 47/04 - Enroulement ou bobinage sur ou dans des bobines ou des tambours, sans utiliser de guide mobile
B21C 47/30 - Tambours ou autres supports d'enroulement avec possibilités d'expansion ou de contraction
B65H 18/10 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la broche de la bobine
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
30.
DIE FOR CONTINUOUS CASTING OF LIQUID METAL, IN PARTICULAR OF STEEL MATERIALS
A die (1) for continuous casting of liquid metal, in particular of steel materials, has die walls (1a, 1b,...) composed of a substitute material (7) as a copper replacement, wherein a highly heat-conductive and high-temperature-resistant protective layer (8) is applied on the liquid metal side (5), and coolant ducts (4a) are provided within the die wall thickness (1b) on the rear, cold side (6), which coolant ducts (4a) are connected, at spaced-apart points, to coolant supply lines (9) and coolant discharge lines (10), wherein the die walls have a heat transfer coefficient (K) of the order of magnitude of 2 to 20 W / m2 K in the thickness direction.
The invention relates to a device for placing a brush (1) against rollers (2), for example in roll stands, in particular against the working and/or support roller of a roll stand for the hot rolling of aluminium, wherein the brush (1) is mounted on a pivot lever and can be placed in contact against the roller (2) by means of a placement device (3) which exerts a placement force. It is provided here according to the invention that the placement device (3) for the brush (1) comprises at least one adjusting element (5) which is arranged so as to be rotatable with respect to the pivot lever (12) and which is operatively connected to the pivot lever by means of a force transmission element (4). A regulating circuit (6) is designed to regulate the placement force to be constant, proceeding from a nominal force F0, in such a way that, by means of a monitoring device (7) for the rotational angle of the adjusting element (5) with respect to the pivot lever, the placement force can be regulated to be constant by means of at least one actuating element (8).
An extrusion die (1) for the casting of liquid metals, in particular of liquid steel materials, has a heat flow density which is distributed non-homogenously over the die face. A homogenizing of the heat flow density can be obtained if the spacing between the hot side and the cooling duct base (= thickness (6) of the die wide side plate (2)) in the new state as a typical normal thickness (100%) is reduced by at least 20% to 80%, and a further reduction, obtained by means of reworking processes, of the thickness (6) which is initially reduced to 80% is restricted to 5 mm final thickness (6a) by means of a final reworking process.
With a roll stand (1), in particular a thick plate roll stand with a right stand frame (2), a left stand frame (3), an upper stand cross beam (4) connecting said frames, at least one pair of working rollers, and one pair of support rollers and the appertaining inserts, as well as a balancing device with holding arms (5, 6), and a piston rod (7) that protrudes through the cross beam in the upward direction and that projects above the top surface (8) of the cross beam (4). A brace (10), located on the outer end (9) of the piston rod (7), is aligned in the direction of the roller and engages with the holding arms (5, 6) of the balancing device. A rotational sleeve (11) arranged between the top edge (12) of the balance cylinder (22) and the bottom edge (13) of the brace (10) clasps around the piston rod (7) and is thus supported on the cross beam (4), and has at least one continuous groove (14) into which the brace (10) can dip.
The invention relates to a method for rolling up a metallic strip (1), in particular a steel strip, to a coil (2), the strip (1) being kept unter longitudinal tension between a driver (3), consisting of at least one driver top roll (4) and at least one driver bottom roll (5), and a winding pin (6). The strip (1) is rolled up on the winding pin (6) to form the coil (2). In order to prevent the undesired opening of the wound coil in a simple manner, a bending moment (MB) is initiated in the strip, said bending moment acting perpendicular to the longitudinal direction of the strip (1) and causing a plastic deformation when a defined remaining length of the strip (1) is reached. The invention also relates to a device for rolling up a metallic strip.
The invention relates to a method and a system for the production of hot-rolled strip silicon-alloy steel for further processing into grain-oriented sheets, such as electrical sheets, wherein a cast product, in this case a thin slab, for example, with a maximum thickness of 120 mm, is subjected to thermal pretreatment and to a subsequent rolling process on a hot-rolling line to set a desired recrystallization state. The invention proposes an intake temperature (Tin) of the cast product (2) into the hot-rolling line (9a or 9b) of at least 1200°C, and preferably in excess of 1250°C, which should be controlled during pretreatment by adding at least one preheating stage (3) and one intensive heating stage (6) to ensure the final rolling temperature (TFR).
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
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
The invention relates to a coiler mandrel (1) for coiling sheet metal, especially hot-rolled strips. Said mandrel comprises a mandrel base (2), an expansion bar (3) that can be adjusted relative to the mandrel base (2) in an axial direction (a) and a plurality of segments (4) which can be radially adjusted when the expansion bar (3) is axially displaced relative to the mandrel base (2). A plurality of brackets (5) are arranged between the expansion bar (3) and the segments (4) and are hinged to the expansion bar (3) and to the segments (4). The aim of the invention is to allow high-strength and ultra-strength materials to be coiled on such a coiler mandrel. For this purpose, at least one plurality of brackets (5) extend, when the coiler mandrel (1) is mounted, through recesses (6) in the mandrel base (2), said recesses being introduced into the mandrel base (2) in such a manner that the latter, at least on one of its axial ends (7) is free from recesses (6).
The invention relates to a method for analyzing a layer of a metal working compound (50) on the surface of a product to be shaped (40), especially of a metal strip, before and/or after a shaping process, especially a rolling process, for various measuring variables. According to the invention, analysis of the metal working compound (50) is carried out by way of spectroscopic analysis. The invention also relates to a method for carrying out the method according to the invention.
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
G01N 21/3563 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge pour l'analyse de solidesPréparation des échantillons à cet effet
The invention relates to an apparatus and a method for guiding a strip, in particular a metal strip. Known apparatuses of this type have a carrier device (110) on which bearing blocks (120) are fastened. Rollers (130) are rotatably mounted in the bearing blocks in order to guide the strip. So that the roller force acting on the roller in the loading case, i.e. during the guidance of the strip, can be measured in a lasting and reliable manner, it is proposed according to the invention to detect the deformation of the bearing block, in particular in the loading case, by means of a sensor device and then to calculate the roller force required from the deformation of the bearing block by means of an evaluating device.
B21B 38/08 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit pour mesurer la force de laminage
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
39.
DEVICE AND METHOD FOR INTRODUCING METAL INGOTS INTO A METAL BATH
The invention relates to a device (1) for introducing metal ingots (2) into a metal bath (3), especially zinc ingots into a zinc bath. Said device comprises a holding device (4) for at least one metal ingot (2), adapted to hold the metal ingot (2) in such a manner that it at least partially dips into the metal bath (3). The aim of the invention is to prevent the rest of the ingot from falling into the metal bath. For this purpose, the holding device (4) for holding the metal ingot (2) comprises a cage element (5) which is arranged and adapted to be at least partially dipped into the metal bath (3). The invention also relates to a method for introducing metal bars into a metal bath.
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
40.
STRAND GUIDE INSTALLATION FOR GUIDING A METAL STRIP
The invention relates to a strand guide installation (100) for guiding a metal strip (200), especially a slab. Said strand guide installation (100) comprises a segmented frame with at least one cross member (112-1, 112+1) which are arranged in parallel to each other and stationarily in the direction of the width of the metal strip (200). A guide element (112-0) is received in parallel to the cross member and perpendicular to the plane of the metal strip so as to be vertically displaceable or oscillatable. According to the invention, the guide element (112-0) and the measuring roller (120) can be received so as to be vertically displaceable and supported on the stationary cross member (112-1, 112+1) by means of guide bars (130) in an especially simple manner.
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
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
41.
METHOD AND DEVICE FOR PRODUCING A METAL STRIP BY CONTINUOUS CASTING
The invention relates to a method for producing a metal strip (1) by continuous casting. According to said method, a slab (3), preferably a thin slab, is initially cast in a casting machine (2), said slab being deviated from a vertical direction (V) into a horizontal direction (H), and in the direction of transport (F) of the slab (3) arranged behind the casting machine (2), the slab (3) is subjected to a milling operation in a milling machine (4) and at least one milling operation in at least one rolling train (5, 6). According to the invention, in order to improve the quality of the strip, the rolling and milling operations are carried out immediately after the slab (3) is cast in the casting machine (2). The rolling operation is divided into at least two partial-rolling operations in at least one first rolling train (5) and one second rolling train (6). The milling operation in the milling machine (4) is carried out directly prior to the first rolling operation or between both rolling operations. The invention also relates to a device for producing a metal strip (1) by continuous casting.
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
42.
DEVICE FOR PRODUCING A METAL STRIP BY CONTINUOUS CASTING
The invention relates to a device for producing a metal strip (1) by continuous casting, using a casting machine (2) in which a slab (3) is cast. At least one milling machine (4) is arranged in the direction of transport (F) of the slab (3) behind the casting machine (2). At least one surface of the slab (3), preferably two surfaces which are opposite to each other, can be milled in said milling machine. According to the invention, in order to obtain high quality surface machining by milling, in particular in relatively rigid slabs, a shaving conveying device (6) is arranged in the region of at least one milling cutter (5) of the milling machine (4) enabling the milled shavings (7) to be removed from the region of the milling cutter (5) in the direction (Q) perpendicular to the direction of transport (F) of the slab (3).
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
43.
DEVICE AND METHOD FOR PRODUCING A METAL STRIP BY CONTINUOUS CASTING
The invention relates to a device for producing a metal strip (1 ) by continuous casting, using a casting machine (2) in which a slab (3) is cast. At least one milling machine (4) is arranged in the direction of transport (F) of the slab (3) behind the casting machine (2) in which at least one surface of the slab (3), preferably two surfaces which are opposite to each other, can be milled. According to the invention, in order to optimise the service life of the milling cutter of the milling machine, means (5) for cooling the milling cutter (6) are provided on or in the milling machine (4). The invention also relates to a method for producing a metal strip.
The invention relates to a device (1) for measuring the width (B) and/or the position of a metal strip (2) or a slab, which has at least two measuring systems (3, 4), with each located on a side (5, 6) of the metal strip (2) or the slab, wherein each measuring system (3, 4) has a sensor (7) designed to detect the lateral end (8, 9) of the metal strip (2). To make the measuring device robust and to enable dynamic measurement, according to the invention the sensor (7) is located on a moving element (10) with which it can be moved in a straight line in a direction (Q) at right angles to the longitudinal direction (L) of the metal strip (2).
B21B 37/22 - Commande de l'écoulement latéralCommande de largeur, p. ex. par refoulement
B21B 37/68 - Commande de la cambrure ou de la direction des bandes, des feuilles ou des tôles, p. ex. prévention des méandres
G01B 5/04 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer la longueur, la largeur ou l'épaisseur spécialement adaptés pour mesurer la longueur ou la largeur d'objets en mouvement
G01B 11/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur
G01B 11/04 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur spécialement adaptés pour mesurer la longueur ou la largeur d'objets en mouvement
45.
ROLLING STAND, ROLLING TRAIN AND METHOD OF ROLLING A METAL STRIP
The invention relates to a rolling stand, a rolling train and a method of rolling a metal strip preprofiled in a stepped manner. In order to ensure that the metal strip is free from corrugations in the longitudinal direction of the metal strip even after a thickness reduction with respect to individual steps, it is proposed according to the invention that the thickness reduction be carried out with respect to specific steps while taking into account the following mathematical interrelationship: ﶴhj/hj = ﶴhi+i/hi+1 = &egr; = constant, where ﶴhj represents the amount of thickness reduction in the region of the ith step and h蹡 represents the size of the resulting thickness of the metal strip 200 after the rolling in the region of the ith step.
B21B 1/08 - 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 pièces de section particulière, p. ex. des cornières
B21C 37/04 - Fabrication de tôles, barres, fils, tubes ou profilés métalliques ou de produits semi-finis similaires, non prévue ailleursFabrication de tubes de forme particulière des barres ou fils métalliques
46.
METHOD AND DEVICE FOR PRODUCING A METAL STRIP BY CONTINUOUS CASTING
The invention relates to a method for producing a metal strip (1) by continuous casting. According to said method, a slab (3), preferably a thin slab, is initially cast in a casting machine (2), said slab being deviated from a vertical direction (V) into a horizontal direction (H), and in the direction of transport (F) of the slab (3) arranged behind the casting machine (2), the slab (3) is subjected to a milling operation in the milling machine (4), in which at least one surface of the slab (3), preferably two surfaces which are opposite to each other, are milled. In order to obtain a high economic viability and improved machining parameters when the strips are rolled, the slab (3) is milled as a first mechanical machining step after the slab (3) is deviated in the horizontal direction (H). The slab (3) is cast with a thickness (d) of at least 50 mm and the slab (3) is cast with a mass flow, which is the product of the casting speed and the slab thickness (v x d), of at least 350 m/min x mm. The invention also relates to a device for producing a metal strip by continuous casting.
The invention relates to a device for producing a metal strip (1) by continuous casting, using a casting machine (2) in which a slab (3), preferably a thin slab, is cast. At least one milling machine (4) is arranged in the direction of transport (F) of the slab (3) behind the casting machine (2), in which at least one surface of the slab (3), preferably two surfaces which are opposite to each other, can be milled. At least one descaling device (5) is arranged in the direction of transport (F) of the slab (3) behind the casting machine (2). In order to keep the temperature loss during processing and/or machining of the slab to a minimum, the milling machine (4) and the descaling device are embodied (5) as an integral unit (6).
The invention relates to a device for producing a metal strip (1) by continuous casting, using a casting machine (2) in which a slab (3), preferably a thin slab, is cast. At least one milling machine (4) is arranged in the direction of transport (F) of the slab (3) behind the casting machine (2). At least one surface of the slab (3), preferably two surfaces which are opposite to each other, can be milled in said milling device. According to the invention, in order to keep the temperature loss to a minimum when the slab is machined and/or processed, at least one milling cutter (5, 6) of the milling machine (4), preferably the entire milling machine (4), is arranged in a displaceable manner in the direction (Q) perpendicular to the direction of transport (F) of the slab (3). The invention also relates to a method for producing a metal strip.
A bearing for rolling-mill rolls which each have two roll journals (2), of which at least one carries a journal bush (4) in the axial direction at least in a certain region, said journal bush (4) being arranged in a rotationally locked manner via a feather key (5), wherein the journal bush (4) is enclosed by a bearing bush (6) held in an insert (7), and a load-bearing lubricating film is provided between the journal bush (4) and the bearing bush (6), wherein the feather key (5) is provided in a region of the roll journal (2) which lies outside the region of the roll compression force acting on the journal bush (4) and transmitted to the insert (7), is to be improved in such a way that the fluctuations in the roll compression force which are caused by the feather key or its locating slot are ruled out and the roll is nonetheless of very short construction, such that considerable savings are obtained through narrower foundations and narrower rolling mill halls and also narrower roll workshops. To this end, it is proposed that the feather key (5) or its locating slot (11) be arranged as close as possible to the Rötscher line (10) defining the outer region of the compression force transmission, and that the extent of the feather key (5) in the radial direction be greater than its extent in the axial direction.
The invention relates to a roll stand and a method for rolling a rolled strip. The roll stand (100) comprises at least one roller housing on the drive side (AS) and one roller housing on the control side (BS) of the roll stand. It also comprises bending devices which are each firmly connected to spars (2) of the roll stands for treating and bending an upper and/or lower work roller of the roll stand (100) relative to the roller housings. The bending devices and thus the work rollers are controlled via a control device. To be able to control or regulate the bending devices and/or work rollers more precisely, and thus to improve the quality of the rolled strip after rolling, it is suggested according to the invention that a bending force strain gauge be placed appropriately for direct measurement of the actual bending force affecting the work rollers (7, 8) via the bending devices (11).
The invention relates to a method and a strand-guiding device for guiding and regulating the temperature of a strand, in particular of steel, in sizes which have at least one edge (2, 3). In this case, the at least one edge (2, 3) is heated by supplying energy in order to avoid stress formation and/or crack formation. Provision is made according to the invention for the edges (2, 3) of the strand (1) to be heated in the strand-guiding region through the use of porous-burner zones (6).
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
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
52.
PLAIN BEARING, METHOD FOR PRODUCTION AND USE OF A PLAIN BEARING OF SAID TYPE
In the case of a plain bearing having at least one support part (25), which is composed of an iron-containing base material, of a bearing sleeve (24) which is provided at the raceway side with a coating (8, 26) which is composed of a coating material, is formed as a melted-on layer and is metallurgically connected to the base material by means of an FeSn2-containing connecting zone (9), it is possible to obtain a long service life in that the thickness of the FeSn2-containing connecting zone (9) is at most 10 &mgr;m.
F16C 33/14 - Procédés particuliers de fabricationRodage
C23C 4/08 - Matériaux métalliques ne contenant que des éléments métalliques
C23C 10/28 - Diffusion à l'état solide uniquement d'éléments métalliques ou de silicium dans la couche superficielle de matériaux métalliques au moyen de solides, p. ex. au moyen de poudres, de pâtes
F16C 33/12 - Composition structuraleEmploi de matériaux spécifiés ou de traitement particulier des surfaces, p. ex. contre la rouille
53.
HEATING DEVICE FOR PREHEATING A LIQUID-METAL TRANSFER CONTAINER
A heating device for preheating a container (3), such as a transfer ladle, transferring liquid metal in melting operations, which is lined with refractory material, wherein the container is heated in a heating stand (1) having a container closure lid (2), is characterized by the use of porous burners (7) for heating the container (3) and keeping it warm.
The invention relates to an apparatus and a method for clamping, cutting, and joining strips to a continuous strip. Said device comprises a clamping device (125), a cutting device (155), and a joining device (195). The clamping device, cutting device, and joining device are kinematically coupled to each other.
B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
B23K 11/087 - Soudage de joints continus non limité à l'un des sous-groupes précédents pour des joints rectilignes
B23K 37/04 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour maintenir ou mettre en position les pièces
A device for extracting the journal bush (4), the bearing bush (5) and the chock (6) from the conically designed region of the roll journal (2) of a roll (1), wherein a pressure shoulder ring (8) is arranged on a roll journal extension (3) of the roll (1), said pressure shoulder ring (8) being supported on the end face of the journal bush (4), is to be improved in such a way that it is of very small construction and the extracting movement is achieved just with small pressures of a pressure agent. To this end, it is proposed that a gap (11) be provided between the pressure shoulder ring (8) and the end face (7) of the roll journal (2), that the pressure shoulder ring (8) be coupled to the journal bush (4), and that at least one pressure agent for extracting the journal bush (4) and the chock (6) be provided in the gap (11).
The invention relates to a strand guide roller (100) of a strand guide device for guiding a cast strand (200). The strand guide roller comprises at least one first and one second sectional roller arranged axially next to one another, wherein the first sectional roller has a roller journal (112-1) on its end face facing the second sectional roller. In addition, the strand guide roller comprises a centre bearing (120-1, 120-2) between the two sectional rollers for accommodating and mounting the roller journal of the first sectional roller. In order to improve the strand guide by an enlarged supporting surface for the strand (200), it is proposed according to the invention that the first and the second sectional rollers be connected to one another via a push-in connection outside the centre bearing. The centre bearing is then designed according to the invention merely as an unsplit individual bearing with a substantially smaller window width compared with a split centre bearing.
B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
57.
PROCESS AND DEVICE FOR DETERMINING THE DISTANCE BETWEEN THE ROLLERS OF SUPPORT ROLLERS AND THE STRAND GUIDER STRUCTURE OF A CONTINUOUS STRAND CASTING FACILITY
A process for determining the distance between rollers (4) of support rollers (5) and the corresponding strand guider framework (3) of a continuous strand casting facility (1) for the casting of liquid metals, especially liquid steel materials, is based on the effects of bulging (9) at bath level and suggests that those varying roller distances (4c) that have a total length profile (F) resulting from the individual frequency of each supporting roller (5) be combined, from which an optimal value for a maximum damping of all bulging effects (9) such as, for example, bath level fluctuations (10) is determined, upon which optimal roller distance (4c) is calibrated.
B22D 11/128 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées pour l'enlèvement
58.
METHOD AND DEVICE FOR DETERMINING THE CORE SOLIDIFICATION AND/OR THE LIQUID CRATER TIP DURING THE CONTINUOUS CASTING OF METALS, IN PARTICULAR STEEL MATERIALS
A method and a device for determining the core solidification (1) and/or the liquid crater tip (2) during the continuous casting of liquid metals, in particular liquid steel materials, in a continuous casting machine (1b) does not cause the top frame (5) with the top rollers (4) to oscillate, but rather the driven top roller (11a) rotatably mounted on a crosspiece (11) and opposite a bottom roller (8), the measured values of said top roller (11a) being used, via a computer program (12), at least for the feedback control of the actuating force of the top frame (5) via a control program (13) and/or the cooling (14) or the actuators for further casting parameters.
In an installation part (1) in a rolling stand for receiving a roll journal (24) having a journal bush (24) of a roll which is used in the processing of steel and non-ferrous metals, wherein the installation part (1) has a cambered side (3) which faces the roll and a run-out side (4) which lies opposite the cambered side (3), having lubricant receiving spaces (7, 15, 16) on the cambered side (3), at least one housing tongue (23) is provided on the cambered side (3) for the at least partial delimitation of the lubricant receiving spaces (7, 15, 16) with respect to one another and for the formation of a gap (25) with the journal bush (24), the width of which gap (25) is below a predefined gap width threshold value.
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
60.
DEVICE FOR COUPLING AND UNCOUPLING MEDIA LINES IN ROLLING PLANTS
In the case of a media coupling (1) for coupling and uncoupling media lines in rolling plants, through which at least one feed line and/or at least one return line for media are/is connected between an insert and a roll stand foundation, the media coupling (1) is formed by a top plate (2) and a bottom plate (3) having surfaces (5, 6) facing one another and a sealing element (4) arranged in between.
In a device for sustaining/supporting a cast strand below a casting mould, comprising at least one supporting frame (12) having horizontal and vertical webs (2, 3), wherein the latter form a plurality of lattice windows (4), and at least one nozzle (8) is arranged in each lattice window (4), only the horizontal guide surfaces (11) are designed to bear against the cast strand (9).
The invention relates to a roll (1) for metal production and/or metal processing, in particular a continuous casting roll, which has a roll parent body (2) of metal and a coating (3) of wear-resistant material applied to said roll parent body (2). In order to make the roll, in particular the continuous casting roll, especially wear-resistant, the invention provides for the coating (3) to have electrolytically applied nickel, wherein the surface (4) of the coating (3) forms the working surface of the roll (1). Furthermore, the invention relates to a method of producing a roll (1) for metal production and/or metal processing, in particular a continuous casting roll.
The invention relates to a continuous casting plant (1), in particular for the continuous casting of thin slabs, which has a vertically oriented strand guide (3) arranged below a mould (2), wherein means (4, 5) for driving the cast strand (6) and for bending the same into the horizontal (H) are arranged below the strand guide (3). In order to be able to extend the strand guide without any drawbacks, the invention provides for a means (4) for exclusively driving the cast strand (6) to be arranged below the bottom end of the strand guide (3) and for a means (5) for exclusively bending the cast strand (6) to be arranged below the driving means (4). The invention also relates to a method of operating a continuous casting plant.
The invention relates to an apparatus for winding and unwinding rolled strip (WB) discharging from a mill train (WS), in which apparatus the rolled strip (WB) discharging from the mill train (WS) is introduced by a set of bending rolls (BR) into a winding chamber (WK) having a rotationally driven roller pair (RP) and is wound into a coil (WB), and the coil is then put onto a roller table (GR) and unwound from these rollers with the direction of rotation being reversed and the start of the strip is fed to a driver device (RT). The apparatus is improved by a supporting slide (TS) which can be pushed into the winding chamber (WK) and in whose side walls a pivoted lever (SH) is mounted, the free end of which carries a pressure roller (AR) which can be put onto the rolled strip coil and pushes the latter out of the winding chamber (WK) onto the adjoining roller table (GR).
B21C 47/24 - Manipulation des matériaux enroulés, pour les transférer vers les appareils à enrouler, les sortir de ces appareils, les mettre en position de fonctionnement dans ces appareils, ou les retirer de cette positionMoyens pour empêcher le déroulement pendant le transport
B21C 47/08 - Enroulement ou bobinage sans utilisation de bobine ou de tambour, le premier tour étant formé par un guide fixe
65.
ROLLER HEARTH FURNACE FOR HEATING AND/OR TEMPERATURE EQUALISATION OF STEEL OR STEEL ALLOY CONTINUOUS CAST PRODUCTS AND ARRANGEMENT THEREOF BEFORE A HOT STRIP FINAL ROLLING MILL
The invention relates to a roller hearth furnace (1) for heating and/or temperature equilibration of continuous cast products (2), comprising a first series of rollers (13) running in the longitudinal direction (12) and a second parallel series of rollers (15) on the outlet side (14), wherein a buffer zone (16) with lifting elements (17) for the perpendicular transport of the continuous cast product (2) is arranged between the series of rollers (13, 15). Furthermore, alternative arrangements for a further process route (28) are provided.
F27B 9/02 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité à trajets multiplesFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité à plusieurs chambresCombinaisons de fours
F27B 9/24 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne sur un transporteur
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
66.
METHOD FOR THE PRODUCTION OF A FOAMED SLAG IN A METAL BATH
The invention relates to a method for producing a foamed slag (1) on a metal bath (2) in a metallurgical furnace (3). According to said method, a mixture (4) containing at least one metal oxide and carbon is introduced into the furnace (3), the metal oxide is reduced by means of the carbon below the slag (1) that is located there, and the gases produced during the reduction process form bubbles such that the slag is foamed. In order to optimize the formation of foamed slag, the mixture (4) is delivered into the furnace (3) in such a way that a desired height (h) or a desired section of the height (h) of the layer of foamed slag (1) is generated or maintained.
Disclosed is a tundish car comprising a lifting mechanism (1) for a tundish (2) used for liquid steel materials, especially in a multistrand continuous casting plant. The tundish (2) is supported on a traveling frame (7) such that the same can be raised and lowered by means of controlled electromechanical or hydraulic lifting mechanisms (1a, 1b). In order to dispense with the need for a quadruple arrangement of piston-cylinder drives and a complicated synchronization control while ensuring safety for personnel and simplifying the design, a single lifting support (9) and only two lifting mechanisms (1a, 1b) are provided.
The invention relates to a method for the continuous casting of slab, thin slab, bloom, preliminary section, round section, tubular section or billet strands (1) and the like from liquid metal in a continuous casting plant (2) in which metal discharges perpendicularly downwards from a mould (3), wherein the metal strip (1) is then guided vertically downwards along a perpendicular strand guide (4) and is cooled in the process, wherein the metal strip (1) is then defelcted from the vertical direction (V) into the horiziontal direction (H) and wherein mechanical forming (5) of the metal strip (1) is effected in the final region of the deflection into the horizonal direction (H) or after the deflection into the horizontal direction (H). In order to obtain a surface which has as little scale as possible, provision is made according to the invention for the metal strip (1) to be cooled with a heat transfer coefficient of between 2500 and 20 000 W/(m2 K) in a first section (6, 6A, 6B) in the conveying direction (F) of the metal strip (1) downstream of the mould (3) and upstream of the mechanical forming (5), wherein the surface of the metal strip (1) is heated to a temperature above Ac3 or Ar3 in the conveying direction (F) downstream of the cooling in a second section (7) by heat compensation in the metal strip (1) without or with reduced cooling of the surface of the metal strip (1), after which, in a third section (8), the mechanical forming (5) is effected. The invention also relates to a continuous casting plant, in particular for carrying out this method.
Disclosed are a method and a casting/rolling plant for producing hot-rolled metallic, particularly steel, strips (7) having great surface quality from slabs or flat thin bars (2, 2a) that are cast in a continuous casting process, descaling being performed based on a rotary descaling process. In order to take into account parameters which are not considered in prior art in addition to rotary descaling, the hydraulically oscillated permanent mold (9) travels along several different oscillation curves (16, 17, 18) while the oscillation marks are deep-cleaned by adjusting the oscillation pattern that is determined to be optimal for each casting material.
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
B22D 11/053 - Moyens pour faire osciller les moules
B22D 11/12 - Accessoires pour le traitement ultérieur ou le travail sur place des barres coulées
The invention relates to a method for changing rolls, in particular, working rolls (7, 8) and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets (5, 6) and working roller sets (7, 8). One individual locomotive mechanism (9) is used for changing the working rolls (7, 8) and/or for changing the back up rolls (5, 6) and/or for inserting or withdrawing a roll changing seat (11) by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall (1) in a roll workshop (2) and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.
Compared to conventional steel products, polyphase steels have a significantly improved combination of resistance and ductility and are therefore becoming more and more important - especially for the automobile industry. The currently most important steel groups for the automobile industry are dual phase steels and TRIP steels. The production of different polyphase steel resistance categories, carried out directly on a hot strip, for meeting various requirements, requires a highly extensive know-how and firstly a corresponding adaptation of the alloy elements. According to the invention, a heat treatment (30) with a variable heating temperature and heating duration is carried out following the actual production of polyphase steels with a standard analysis and a standard process execution, whereby almost any combination of different materials or combination of properties (height of yield stress, level of tensile strength) can be adjusted.
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 7/13 - Modification des propriétés physiques du fer ou de l'acier par déformation par travail à chaud
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
72.
METHOD FOR CONTINUOUS CASTING AND ROLLING WITH AN INCREASED CASTING RATE AND SUBSEQUENT HOT-ROLLING OF RELATIVELY THIN METAL STRANDS, ESPECIALLY STEEL STRANDS, AND CONTINUOUS CASTING AND ROLLING DEVICE
The invention relates to a method for continuous casting and rolling with a high casting rate and subsequent hot-rolling of relatively thin metal strands, especially steel strands (1), the target temperatures (6) of the hot strip (2) being pre-defined. Said method enables temperature losses on the hot strip (2) to be reduced by increasing the temperatures of the work rolls (4) with a pre-determined rate of increase starting from a low initial temperature (5), and by adjusting the temperature (15) of the strip to a target roll temperature (6) of the hot strip (2) and/or by regulating or controlling the intensity of the roll cooling (18).
B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
The invention relates to a method for changing a first set of rolls (7, 8) in a roll stand (4) by means of a first locomotive mechanism and for changing a second set of rolls (5, 6) in the same roll stand (4) by means of a second locomotive mechanism. According to the invention, the same locomotive mechanism (9) is used as the first locomotive mechanism and as the second locomotive mechanism. The invention also relates to a locomotive mechanism for carrying out said method.
The invention relates to a method for changing/transporting a first roll set (7, 8) and a second roll set (22) on a transversal displacement platform (23) in the region of a roll stand (4) in a roll hall, in or counter to the direction of rolling. During the changing/transporting of the first and the second roll set (7, 8, 22) by the transversal displacement platform (23), a roll changing hole (10) is completely transversed/covered. The invention also relates to a device for carrying out said method.
The invention relates to a method for handling/transporting rolls, in particular working rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. The inventive method consists of placing the rolls on top of each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, in a roll workshop and back and installing novel roll sets. According to the invention, the working rolls (7, 8) are pulled/displaced, by means of a locomotive mechanism (9), from the roll stand (4) in the roll hall (1) via platforms (20) into the roll workshop (2), the locomotive mechanism (9) is displaced in a roll changing hole (10), the roll workshop (2) comprises, to the right and left adjacent to the roll changing hole, a supporting structure (26) which comprises a left part (27) and a right part (28), a changing carriage (31) is displaced on the support structure (26) and the changing carriage (31) comprises devices (32) for receiving the working rolls/working roll sets (7, 8, 35). The invention also relates to a device for carrying out said method.
The invention relates to a method for handling/transporting rolls and/or supports rolls in a roll workshop. The invention is characterised in that the working rolls (7, 8) are pulled/displaced by means of a locomotive mechanism (9) from the roll stand (4) in the roll hall (1), via platforms (20), into the roll workshop (2), the locomotive mechanism (9) is displaced in a roll changing hole (10), the roll workshop (2) comprises, to the right and left adjacent to the roll changing hole, a support structure (26) which comprises a left part (27) and a right part (28), a changing carriage (31) is displaced on the support structure (26) and devices (32) for receiving the working rolls/working roll sets (7, 8, 35) are provided on the changing carriage (31), and/or the support rolls (5, 6) are pulled/displaced by the locomotive mechanism (9) from the roll stand (4) into the roll workshop (2); the support rolls (5, 6) are withdrawn from the roll changing hole (10); a novel support roll set is placed in the roll changing hole (10) and the novel support roll set is displaced by the locomotive mechanism (9) in the stand (4). The invention also relates to a device for carrying out said method.
In an apparatus (1) for adjusting an electrode (5) of a metallurgical furnace, in particular a furnace for resistance operation having a furnace lid (15), comprising a clamping ring (3) and a holder ring (4, 14), the holder ring (4, 14) is designed to be arranged in the furnace lid (15).
The invention relates to a method for producing a metal strip (1) by continuous casting and rolling. According to said method, a thin slab (3) is initially cast into a casting machine (2), which is subsequently rolled in at least one rolling train (4, 5) using primary heat from the casting cycle. According to the invention, in order to improve the functionality of the continuous casting and rolling installation, the cast thin slab (3) is passed between the casting machine (2) and the at least one rolling train (4, 5) and at least one holding oven (6) as well as at least one induction oven (7). The holding oven (6) and the induction oven (7) are activated or deactivated according to a selected mode of operation, that is, a first mode of operation for the continuous production of the metal strip (1) and a second mode of operation for the discontinuous production of the metal strip (1). The invention further relates to a device for producing a metal strip by continuous casting and rolling.
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
79.
METHOD FOR THE CONTINUOUS CASTING OF THIN METAL STRIP AND CONTINUOUS CASTING INSTALLATION
The invention relates to a method for the continuous casting of thin metal strip (1) in a continuous casting installation (2), in which method metal leaves a die (3) vertically downwards, wherein the metal strip (1) is bent out from the vertical direction (V) into the horizontal direction (H) and wherein the metal strip (1) is supported and/or conveyed and/or plastically deformed by means of a number of pairs of driving rollers (4, 5, 6, 7, 8, 9, 10). In order to avoid a drop in quality, in particular when changing the casting parameters, it is provided according to the invention that at least one pair of driving rollers (8, 9, 10) plastically deforms the metal strip (1) without significantly changing the average thickness (d) of the metal strip (1). Furthermore, the invention relates to a continuous casting installation, in particular for carrying out this method.
The invention relates to a method of controlling a rolling process, in which a metal strip is rolled flat by means of at least one roll. It is known from the prior art that the relative position of a 'neutral point' is a measure of the current stability of a rolling process. Traditional methods of calculating the position of the neutral point represent the actual properties of metal, although only rather imprecisely, and are therefore suitable only to a limited extent for predicting the stability of a rolling process. In order to be able to more effectively control a rolling process for rolling a metal strip with regard to the actual behaviour of the metal strip, a novel method of calculating the relative position of the neutral point is proposed according to the invention, in which method in particular the plane of the yield stress ke and the hydrostatic pressure pNH at the neutral point are entered.
B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
81.
DEVICE FOR CHANGING A SUPPORTING ROLLER SEGMENT OF THE STRAND GUIDE OF A CURVED STRAND CONTINUOUS CASTING MACHINE FOR LIQUID METALS, IN PARTICULAR FOR LIQUID STEEL
A device for changing a supporting roller segment (1) of the strand guide (2) of a curved strand continuous casting machine for liquid metals, in particular for liquid steel, comprising a track guide (3) in which the supporting roller segments (1) are changed in a suspended manner on a segment changing chain (5) on the crane (4), can be designed with a saving in weight with improved static mounting in the changing rail geometry (10) by only one change wheel pair (6) being arranged per supporting roller segment (1) on the segment frame (1a) and by the last, lowermost link (5b) of the segment changing chain (5) being provided with a pair of guide wheels (7) adapted to the curve (2a) of the rail guide (3) at the centre distance (8).
The invention relates to a method for refining or descaling thin slabs and rolled strips in a hot strip mill. Said method is characterized by using cryogens such as nitrogen or a compound formed by cryogens with a carrier medium such as pressurized air, which are sprayed onto the slab surface or onto the strip surface in liquid and deep-frozen form. The invention also relates to a method for refining or descaling strips of a strip treatment installation having the characterizing features and to a corresponding device.
B21B 45/04 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour décaper, p. ex. décalaminer
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 7/00 - Nettoyage par des procédés non prévus dans une seule autre sous-classe ou un seul groupe de la présente sous-classe
83.
METHOD AND FOUNDRY FOR PRODUCING HIGH-MANGANESE, LOW-CARBON STEEL
The invention relates to a method and a foundry for producing high-manganese, low-carbon steel (1), using liquid pig iron (2) or liquid carbon steel (3a) and slag-forming constituents (4). The aim of the invention is to avoid the problems associated with the process route in other crucibles, for example electric-arc furnaces (18). High-manganese, low-carbon steel is subjected to a process, once liquid ferromanganese (5) and liquid steel (3a) have been introduced into an FeMn refinery converter (6a), and the carbon percentage is reduced to approximately 0.7 0.8 % by combined injection of oxygen (7) through top lances (8) and submersible nozzles (9). A part of the cold final product produced from a premelt is added as a coolant (10) and the carbon percentage is reduced to approximately 0.05 0.1 % C by continuous injection of oxygen (7) through the submersible nozzles (9).
The invention relates to a strand guiding unit and a method for positioning at least one roll segment of a strand guiding unit against a strand, the roll segment (110) comprising an upper and a lower roll support (114, 112), each of which bears at least one roll (116, 118) for guiding the strand (200) between the rolls. When viewed in the direction of the material flow, at least one respective positioning element is allocated to the right-hand and left-hand side of the roll segment in order to position the two roll supports (112, 114) in relation to one another. The aim of the invention is to relieve the mechanical stress on a rolling frame that is connected downstream of the strand guiding unit, to relieve said frame of some of its previous tasks and to improve the quality of the strand. To achieve this, the separate positioning elements are individually controlled in such a way that the heights (Hr, Hl) of the right-hand and left-hand edges of the strand (200) are identical.
The invention relates to a method for improving the slipping out of a metal rolled strip (1) whose rolled strip end (1a) runs out at a rolling speed from the receptively last roll stand (2) of a multiple-stand mill train (3). During rolling, the strip tension (s) is set between two successive roll stands (F1, F2, F3...Fn) for stabilizing the strip run. The invention provides that shortly before the rolled strip end (1a) leaves, the generated differential rolling forces are separately measured for each roll stand (F1, F2, F3...Fn), from which pivot value (16) and pivot direction are derived for forming a correction value for the adjustment of the rolls (10, 11) and the adjustment is corrected.
The invention relates to an apparatus (100) for carrying cooling water away from the narrow sides (210) of a slab (200) passed essentially vertically through a secondary cooling device after casting in a continuous casting installation. In order to prevent partial overcooling of the slab at its edges, the apparatus (100) according to the invention comprises a plurality of water drainage devices (110-n), which are arranged such that they are distributed in a vertical direction over the length of the narrow side of the slab. This plurality of water drainage devices (110-n) is carried by a vertically arranged collecting downpipe (120). The collecting downpipe additionally serves for collecting the cooling water that is drained by the plurality of water drainage devices (110-n) and carrying it away in a decentralized manner.
The invention relates to a method and a finishing train for hot-rolling starting material. Starting material is finished in several successive roll stands (110 n) in the finishing train, the material cooling off because of heat loss. The material has to be reheated in order for the temperature of the material not to drop below the predefined lower threshold temperature value at low speeds within and at the discharge end of the finishing train. In order to use as little energy as possible for said reheating process, the reheating process within the finishing train is carried out for the first time only when the temperature of the material risks falling below the lower threshold temperature value for the first time relative to the direction of flow of the material because of heat loss. Furthermore, the temperature of the material during the reheating process is increased only to the point where the temperature of the material will not drop below the lower threshold temperature value (TU) while the material is conveyed on to a next heating device that is mounted downstream in the direction of flow of the material and until the material is discharged from the mill train.
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
Disclosed is a method for detecting strip edges in a cold rolling mill and/or strip-forming system. According to said method, the strip edges (13, 14) are continuously recorded in a contactless manner by means of two optical recognition systems, the right strip edge (14) and the left strip edge (13) are detected along a strip length exceeding 800 mm with the aid of an image recording device (4, 5), the image data is transmitted to a computer (11) and is processed there, and the shape of the strip edge determined in said fashion is taken into account during the regulation process.
B21B 37/68 - Commande de la cambrure ou de la direction des bandes, des feuilles ou des tôles, p. ex. prévention des méandres
G01B 11/04 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur spécialement adaptés pour mesurer la longueur ou la largeur d'objets en mouvement
89.
METHOD FOR PRODUCING HOT STRIP WITH A MULTIPHASE STRUCTURE
For the production of hot strip referred to as TRIP steel (transformation induced plasticity), with a multiphase structure and with outstandingly good deformation properties along with high strengths, from the hot-rolled state, the invention proposes a method which is carried out with a predetermined chemical composition of the steel grade used within the limits 0.12 - 0.25% C; 0.05 - 1.8% Si; 1.0 -2.0% Mn; the remainder Fe and customary accompanying elements and with a combined rolling and cooling strategy in such a way that a structure comprising 40 - 70% ferrite, 15 - 45% bainite and 5 - 20% residual austenite is obtained, wherein the finish rolling of the hot strip (7) is performed to set a very fine austenite grain (d ឬ 8 쎽m) in the final forming operation (6') at temperatures between 770 and 830°C just above Ar3 in the region of the metastable austenite, and a controlled two-stage cooling (10, 11, 12) is carried out after the last rolling stand (6') of the hot strip (7) to a strip temperature in the range of bainite formation of 320 - 480°C, with a holding time of about 650 - 730°C, the beginning of which is determined by the entry of the cooling curve into the ferrite region and the duration of which is determined by the transformation of the austenite into at least 40% ferrite.
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C21D 1/20 - Trempe isotherme, p. ex. durcissement bainitique
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
90.
CONTROL APPARATUS FOR ALTERNATING-CURRENT REDUCTION FURNACES
The invention relates to a control apparatus for alternating-current reduction furnaces (15) having electrodes (14), which control apparatus has a transformer (11) and a regulating system (1) for the controlled introduction of power into the alternating-current reduction furnaces (15), which regulating system controls an adjusting apparatus (17) for the electrodes (14), wherein the control apparatus also has controllable power-electronics alternating-current switches (13) which are connected into the high-current conductor at the secondary end and are connected to the regulating system (1) via an ignition line (16) for supplying controlling ignition pulses, and wherein the control apparatus is designed in such a way that brief fluctuations in the electrical parameters are compensated for only by the alternating-current switches (13).
GEORG SPRINGMANN INDUSTRIE- UND BERGBAUTECHNIK GMBH (Allemagne)
SMS DEMAG AG (Allemagne)
Inventeur(s)
Springmann, Georg
Warmbier, Dieter
Hasselbrink, Dirk
Zenz, Ulrich
Jonen, Peter
Steuten, Michael
Abrégé
The invention relates to an apparatus for coupling a coolant supply to a roll (2), in particular for continuous casting installations, wherein the roll (2) is mounted via journals (3) in a bearing block (4) by means of roller bearings (5) and can be supplied with a coolant via at least one axial roll bore (6) which is guided through the journals (3), having a sealing unit, preferably in the form of an elastic sleeve, which can be fixed in a pressuretight manner to the roll journal (3) for coupling to the axial roll bore (6), and having a bearing block cover (9) which can be fixed to the bearing block (4) in order to cover the roll bore (6) and has at least one coolant channel (11, 12) which can be connected to the coolant supply.
The invention relates to an apparatus for adjusting working rolls to the rolling line, in particular in four-high rolling mills, by means of at least one wedge pair (1, 1’) which acts on roll installation parts in the region between rolling stand columns (2, 2’) which are spaced apart from one another in parallel and are arranged such that they can be displaced relative to the columns (2, 2’) on a horizontal sliding path by means of a toggle lever adjustment. To this end, the wedges (1, 1’) of the wedge pair are connected to one another at a fixed spacing. In order to displace them, an arrangement of two toggle levers (4, 5) is provided, of which one lever (4) is supported on one wedge (1) by way of at least one joint (6) and the other lever (5) is supported on the opposite column (2’) by way of at least one joint (10) and both levers are connected via an adjustable-length toggle lever joint (7).
B21B 31/30 - Réglage des cylindres en déplaçant les cylindres perpendiculairement à leur axe mécaniquement par des cales, des coins ou dispositifs équivalents
B21B 31/28 - Réglage des cylindres en déplaçant les cylindres perpendiculairement à leur axe mécaniquement au moyen de mécanismes à leviers articulés
93.
SUBMERGED NOZZLE FOR LIQUID METALS, ESPECIALLY STEEL MATERIALS
Disclosed is a submerged nozzle (1) for liquid metals, especially steel materials, in continuous casting devices, such as continuous slab casting machines. Said submerged nozzle (1) comprises a shaft (2) with an internal duct (3) that extends into a transversal duct (4) and is provided with two outlets (4a; 4b) for deviations (6) in opposite horizontal directions (6). In order to reduce turbulence and energy of flow in said submerged nozzle (1), a distribution duct (8) that has an oval cross section (9) forms a symmetrizing spherical cap (10) oriented towards the shaft axis (2a) opposite the orifice (5) when used for liquid, alloy steel (high-grade steel).
Disclosed is a method for removing loose scale and other foreign matter from the top and/or bottom face of a cast product (3), such as a slab, thin slab, profiled element, or similar, with the aid of flowable media which are sprayed onto the cast product (3) by means of a cleaning device (5) comprising at least one spraying apparatus (8, 9) that is disposed above the cast product (3) and at least one spraying apparatus (8, 9) that is arranged below the cast product (3). According to said method, the amount of media and/or the effective width and/or the pressure of the media is/are controlled separately and independently of time for each spraying apparatus (8, 9). The invention also relates to a device for removing loose scale and other foreign matter from the top and/or bottom face of a cast product (3) with the aid of flowable media which are sprayed onto the cast product (3) by means of a cleaning device (5) comprising at least one spraying apparatus (8, 9) located above the cast product (3) and at least one spraying apparatus (8, 9) located below the cast product (3). The spraying apparatuses (8, 9) and/or the nozzles (13) that are placed on the spraying apparatuses (8, 9) are configured so as to respond via a controller/a guiding system.
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
B22D 31/00 - Coupage du matériau en excès après coulée, p. ex. des jets ou masselottes
In the case of a drive arrangement for a rolling mill, comprising at least one drive motor (M), a main gear mechanism (HG), a pinion gear mechanism (KWG), a rolling stand (G) with working rolls (AW), and the spindles, couplings and the like which connect these components, the main gear mechanism (HG) is a single-stage one and the drive axis (AN) is spaced apart from the output axis (AB) by an upwardly directed, vertical spacing (vA).
The invention relates to a component (1) for a continuous casting mould, such as a water box, adapter plate etc., to which a copper plate is fixed. The component (1) is composed of at least two individual elements (2, 3, 4, 6, 7), consisting of different materials. The invention also relates to a method for producing a component for a continuous casting mould.
The invention relates to a method for lubricating and cooling rollers (3,4,5,6) and metal strips (2) on rolling in particular, on cold rolling of metal strips (2), wherein, on the inlet side (7a) a minimal amount of pure lubricant (9) without a high water content is continuously supplied in an online controlled manner with a controlled viscosity and lubricity depending on a number of process data measurements (23) by means of a physical computer model (22) and the equivalent process data measurements (23) from the outlet side (8a) are also used online by the physical computer model (22).
B21B 37/32 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant une commande du bombé des cylindres en refroidissant, en chauffant ou en lubrifiant les cylindres
B21B 37/44 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant le chauffage, la lubrification ou le refroidissement par jets d'eau, du produit
98.
METHOD FOR THICKNESS REGULATION DURING A HOT-ROLLING PROCESS
The invention relates to a method for thickness regulation during a rolling, especially hot-rolling, process, using at least one roll stand. The actual, average position of the adjustment cylinders of the roll stand and the total rolling force of the same are taken into account. According to the invention, at least one additional position measurement is carried out by the detection of position signals close to the roll gap of the roll stand.
The invention relates to a rolling installation comprising a roll stand (110) for rolling a metal strip and a suction device (120) for sucking polluted air from the immediate environment of the metal strip to be rolled. The aim of the invention is to structurally simplify the suction device. To this end, the inlet guiding region (112) is defined on one side by an inlet guiding plate (113) and the inlet suction channel (120) is connected to the inlet guiding region (112) via an opening (113-O) in the inlet guiding plate (113). The same arrangement can be applied to the discharge suction channel (124) and the discharge guiding region (114).
B21B 9/00 - Dispositions prises en vue d'effectuer le laminage dans des conditions particulières, p. ex. sous vide ou en atmosphère inerte pour éviter l'oxydation du matériau travailléDispositions particulières prises pour évacuer les fumées des laminoirs
The invention relates to a tapping channel (1) for a metallurgical furnace, particularly for an electro-reducing furnace, comprised of at least one tapping brick (10, 11, 12) and of a cooling device in the vicinity of the tapping channel (1). The cooling device is provided in the form of a sleeve (14), which indirectly cools a tapping brick (2) and which at least partially surrounds the furnace wall (3) in the vicinity thereof.
