The invention relates to a method, a device and a computer program for adjusting the distribution of strip tension when reeling up a cold-rolled metal strip (5) using a wind-up device (140) to form a coil. The method comprises the following steps: - detecting the distribution of the current strip tension over the width of the metal strip when reeling up the strip (5) upstream of the wind-up device (140); and - adjusting the distribution of the current strip tension to a specified distribution of the target strip tension over the width of the metal strip (5) by suitable variation of at least one control variable, wherein the distribution of the target strip tension over the width of the metal strip (5) is adapted during reeling-up in consideration of a distribution of the winding diameter W of the coil over its width that changes when reeling up. In order to improve the flatness of the metal strip (5) later unwound from the coil, according to the invention the distribution of the target strip tension over the width of the metal strip (5) is additionally adapted to the thickness distribution D of the metal strip (5) over its width during reeling-up.
B21C 47/00 - Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
B21B 38/06 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
2.
METHOD FOR OPERATING A ROLLING MILL, AND ROLLING MILL
The invention relates to a method for operating a rolling mill, in particular for the hot and cold rolling of flat metal products, the method comprising the following method steps: - measuring an actual specification of a metal strip at the outlet of a cold-rolling line (2) and/or directly before or after a process step which comes after the cold-rolling, - comparing the actual specification of the metal strip with a target specification of the metal strip, - specifying at least one selected process parameter of the cold-rolling line (2) and/or an upstream installation depending on the comparison, wherein the process parameters are selected from a group of process parameters comprising the strip tension in particular between roll stands (33, 34, 35), the roll ascent of the roll stands (33, 34, 35), the reduction distribution between the roll stands (33, 34, 35) and the setting of the specification of a hot rolled strip.
B21B 37/16 - Control of thickness, width, diameter or other transverse dimensions
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
The invention relates to a method for operating a roller straightening machine (1) for metal products (2), said straightening machine (1) having a number of straightening rollers (3, 4, 5, 6, 7) which contact the metal product (2) to be straightened at two opposite sides of the product (2) during the straightening process and exert a bending moment and/or a shear force on the product (2) by advancing (x) the rollers towards the product (2), wherein each straightening roller (3, 4, 5, 6, 7) has an electromotive drive (8) by means of which the straightening roller (3, 4, 5, 6, 7) can be driven. The aim of the invention is to ensure that torques are distributed across the individual straightening rollers as advantageously as possible. This is achieved in that the method has the steps of: a) prior to starting the straightening process: ascertaining a target distribution of the total drive torque of all of the straightening rollers (3, 4, 5, 6, 7) across the individual straightening rollers (3, 4, 5, 6, 7); b) during the straightening process: b1) ascertaining the force exerted by the straightening rollers (3, 4, 5, 6, 7) on the product (2) in a direction normal to the product (2); b2) determining all of the straightening rollers (3, 4, 5, 6, 7) actively involved in the straightening process; b3) ascertaining a redistribution of the total drive torque across the straightening rollers (3, 4, 5, 6, 7) actively involved in the straightening process; and b4) driving the straightening rollers (3, 4, 5, 6, 7) actively involved in the straightening process using the redistributed drive torque according to step b3).
B21D 1/02 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefromStretching sheet metal combined with rolling by rollers
The invention relates to a method for melting and treating, in particular mixing, electrically conductive material with high gangue and slag-formers, in particular sponge iron using at least one induction crucible furnace (1) and by coupling at least one alternating-current magnetic field into the material by means of at least one first and at least one second coil arrangement (4,5), which surround a crucible (2) of the induction crucible furnace (1) with a crucible volume (3) for receiving the material, wherein the method comprises melting and stirring the molten material during simultaneous operation of the first and the second coil arrangements (4, 5), wherein the phase angle of the alternating voltage of the first and/or second coil arrangements (4, 5), in particular during operation of the induction crucible furnace (1), is set such that the phase angle of the alternating voltage of the first coil arrangement (4) is shifted with respect to the phase angle of the alternating voltage of the second coil arrangement (5) at least temporarily during a operation. The invention further relates to an induction crucible furnace (1) for carrying out the method.
F27B 14/20 - Arrangement of controlling, monitoring, alarm or like devices
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
The invention relates to a device and method for the reversing rolling of rolled products (100, 110) made of metal, preferably for the rolling of rolled products (100, 110) made of aluminium or an aluminium alloy, the method comprising the steps of: transporting a first rolled product (100) over a roller line (10) to a pre-rolling train (20); reversing rolling the first rolled product (100) through the pre-rolling train (20), wherein the first rolled product (100) occupies a reversing region (Rb) of the roller line (10) during reversing rolling; during the rolling process of the first rolled product (100) through the pre-rolling train (20), transporting a second rolled product (110) over the roller line (10) to a transfer device (30) which is located in the reversing region (Rb) of the first rolled product (100); and during the rolling process of the first rolled product (100) through the pre-train (20), transferring the second rolled product (110), located in a transfer region (Tb), by means of the transfer device (30) out of the roller line (10) and into a waiting region (40) such that the reversing region (Rb) of the roller line (10) is free for the next rolling phase of the first rolled product (100) which is in the rolling process.
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B21B 1/34 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a non-continuous process in reversing mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
6.
METHOD FOR CONTROLLING THE FORMING TEMPERATURE IN A HOT ROLLING MILL, AND HOT ROLLING MILL
The invention relates to a method for controlling the forming temperature in a hot rolling mill for producing flat and/or long metal products using a hot rolling method in which a starting product provided for a forming operation in the rolling mill, at least before and/or after at least one forming stage, undergoes at least one first and one second temperature conditioning in at least two different kinds of temperature conditioning units (3,4), wherein the method comprises controlling the load distribution between the different kinds of temperature conditioning units (3,4) and the temperature conditioning units (3,4) are controlled at least on the basis of one or more boundary conditions, which are selected from a group of boundary conditions comprising a forming temperature for the rolled stock for achieving particular product properties, the material properties of the rolled stock, the kind and number of intended forming stages, the planned reduction in thickness of the rolled stock in each forming stage and/or across all forming stages, the target rolling temperature before and/or after each forming stage. The invention also relates to a hot rolling mill, preferably for performing the method.
The invention relates to a descaling system (100) for descaling a workpiece (1), preferably hot-rolling stock, by means of applying a high-pressure fluid to surfaces of the workpiece. The descaling system (100) comprises a high-pressure pump (7), a descaling unit (9) having nozzles (10), a fluid conveying system (4, 5, 6), sensors (21, 22, 23, 24, 25, 26, 27, 28, 29, 30) for measuring a plurality of operating parameters as operating parameter measurement values (Q1, Q2, T, n, a, Q3, P3, Q4, P4, P5) and a monitoring device (20) for detecting and processing the operating parameter measurement values (Q1, Q2, T, n, a, Q3, P3, Q4, P4, P5). The monitoring device (20) is designed to determine, in real time during operation of the descaling system, at least one general and/or component-specific operational capability status and/or wear status of the descaling system by way of a combined evaluation of the detected operating parameter measurement values (Q1, Q2, T, n, a, Q3, P3, Q4, P4, P5) from at least two of the sensors (21, 22, 23, 24, 25, 26, 27, 28, 29, 30) for measuring different operating parameters and to output the determined operational capability status and/or wear status of the descaling system to a human-machine interface (50, 51, 52, 53, 54) coupled to the monitoring device (20). The invention further relates to a corresponding monitoring device and to a monitoring method.
B21B 45/08 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling hydraulically
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21C 43/04 - Devices for de-scaling wire or like flexible work
The invention relates to a measuring roller having a contact roller for being brought into contact with a band (20), in particular a metal band. On the contact roller, at least one sensor element is arranged for detecting a physical measurement variable of the deflected band (20) in the contact region between the contact roller (12) and the band (20). In order to develop such a known measuring roller having at least one sensor, and a known method for generating and evaluating a measurement signal of the sensor element, such that the quality of the sensor signal is improved and the physical measurement variable of the deflected band it represents can be determined more accurately, the invention proposes that the sensor strip (14) is designed as a single sensor and is arranged helically on the surface of the contact roller (12).
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21B 38/06 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
9.
DETECTING THE GEOMETRY OF A WORKPIECE DURING AN OPEN-DIE FORGING PROCESS
The invention relates to a method for detecting the geometry of a workpiece (2) during a forging process, in particular during an open-die forging process, said method having the steps of: conveying the workpiece (2) into a measuring region (31) of a measuring system (30) by means of a handling device (20); measuring at least one distance (d) between the workpiece (2) and an optical measuring system (34) of the measuring system (30) by means of at least one distance measuring system (32) and ascertaining at least one distance value therefrom; optically capturing the workpiece (2) by means of the optical measuring system (34) and determining all or part of the geometry of the workpiece (2) therefrom; and correcting the geometry of the workpiece (2) using the at least one distance value.
An apparatus (1) and a method for producing a hot-rolled metal strip (2), wherein the apparatus (1) has: a finishing train (10), with at least one roll stand (11), which has work rolls forming a roll gap, for hot-rolling the metal strip (2); and a quick-cooling device (20), which is directly downstream of the roll gap of the last roll stand (11) of the finishing train (10) and is configured to cool the metal strip (2) quickly by applying a coolant, preferably a water-based coolant, to the upper side and the underside of the metal strip (2) along a cooling zone of the quick-cooling device (20); wherein the quick-cooling device (20) is configured to apply coolant both to the upper side and to the underside of the metal strip (2) at a rate of between 100 and 300 m3/(m2*h).
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
The invention relates to an induction heating device (1) for heating a metal material (40) conveyed in a conveying direction (R1), wherein the induction heating device (1) has at least one inductor (2), having at least one first coil (10) and at least one second coil (20), wherein the first coil (10) and the second coil (20) are arranged spaced apart from each other in a spacing direction (R2) and at least partially delimit a clearance, so that a metal material (40) conveyed in the conveying direction (R1) is conveyed at least partially through the clearance between the first coil (10) and the second coil (20), and at least one energy supply means (30), which is electrically connected to the first coil (10) and the second coil (20).
H05B 6/44 - Coil arrangements having more than one coil or coil segment
12.
METHOD FOR FORGING A FORGING WORKPIECE, AND WORKPIECE MANIPULATOR FOR USE IN A METHOD FOR OPEN DIE FORGING OR RADIAL FORGING OF FORGING WORKPIECES IN A FORGING PRESS
The invention relates to a method for forging a forging workpiece (2) in a forging press (3) which is preferably designed as an open-die press or a radial forging press, wherein the method comprises manipulating the forging workpiece (2) by means of a workpiece manipulator (1) that has a workpiece tong (5), wherein the workpiece tong (5) has a chuck (6) that defines a clamping axis S for the forging workpiece (2), wherein the workpiece manipulator (1) performs a linear translational movement between press strokes of the forging press (3) with the forging workpiece, wherein the method also comprises determining the position, along the clamping axis (S), of at least the end (4) of the forging workpiece (2), which end is clamped in the workpiece tong (5), relative to a reference point on the forging press (3), in particular relative to the tools of the forging press (3), by means of at least one measuring system provided on or in the workpiece tong (5). The invention also relates to a workpiece manipulator (1) for use in the method according to the invention.
The invention relates to a method for providing water, wherein an oxide ore is reduced using a hydrogen-containing gas, and the water produced thereby is separated and prepared. The invention also relates to a device for carrying out the method, to a system, and to a use of the device or system for providing water.
C02F 9/00 - Multistage treatment of water, waste water or sewage
C21B 13/00 - Making spongy iron or liquid steel, by direct processes
C02F 1/24 - Treatment of water, waste water, or sewage by flotation
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
C02F 1/76 - Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
C02F 103/18 - Nature of the water, waste water, sewage or sludge to be treated from the wet purification of gaseous effluents
14.
PRODUCTION OF HOT-ROLLED METAL STRIPS AS A PRELIMINARY OR INTERMEDIATE PRODUCT FOR GRAIN-ORIENTED ELECTRICAL STEEL STRIP
A plant (1) and a method for producing hot-rolled metal strips as a preliminary or intermediate product for grain-oriented electrical steel strip, the plant (1) comprising: a casting machine (10), which is designed to produce slabs from a silicon-containing steel melt and transport them in a transporting line; a first thermal conditioning device (20), which adjoins the casting machine (10) in the transporting line and is designed to subject the slabs cast by the casting machine (10) to a first thermal conditioning; a first roll stand group (30), which adjoins the first thermal conditioning device (20) and is designed to use rolling to form the slabs conditioned by the first thermal conditioning device (20) into corresponding metal strips; wherein the first thermal conditioning device (20) is designed to heat the slabs, in the course of the first thermal conditioning, to a first temperature (T1) that leads to a partial austenitization of the slabs, and to then hold the slabs at or above a second temperature (T2) for an equalization time (t1).
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for wiresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for strips
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
15.
METHOD FOR SETTING A POWER TRAIN FOR A FORMING INSTALLATION
The invention relates to methods and computer programs for setting and/or running up a power train for a forming installation, in particular an extrusion press, to a specified operating speed. The invention also relates to the corresponding forming installation. The power train (100) consists of a hydraulic piston-cylinder unit (130) with a ram (132) for pressing a material in the forming installation through a die (220). The piston-cylinder unit (130) is connected to a pump arrangement (110) via a hydraulic line network (120). The pump arrangement (110) comprises at least one axial piston pump with an associated electric motor (M1) for pumping a hydraulic fluid through the hydraulic line network to the piston-cylinder unit. In order to be able to save energy when operating the axial piston pumps, and the electric motors that drive them, during a pressing time of the forming installation, the methods according to the invention provide that the swivel angle (α1) of the first axial piston pump (P1) and the rotational speed (n1) of the first electric motor (M1) and also - if required - additionally the swivel angles (α2...) of additionally operated further axial piston pumps are set or changed such that the specified setpoint operating speed (Vsoll) is obtained at the lowest possible overall efficiency.
The invention relates to a method for providing heat energy to a heat transfer device and/or a heat load, wherein an oxide ore is reduced using a hydrogen-containing gas, and the water produced thereby is separated. According to the invention, the heat energy contained in the separated water is removed and supplied to the heat transfer device. The invention also relates to a device for carrying out the method, to a system, and to a use of the device or system for providing heat energy.
Operational safety during operation of an extrusion press (10) can be increased by virtue of the specialization of the electrical drives (50) that act upon the receiving container (13) in order to operate the extrusion press.
The present invention relates to an extrusion and tube-extruding press (1) comprising a press frame consisting of a cylindrical beam and a counter beam connected thereto, in which press frame a movable cross-head (4), which is actuatable via a main slide cylinder (2) and at least one secondary slide cylinder (3), preferably at least two secondary slide cylinders (3), and a movable container (6), which is actuatable via at least one slide cylinder (5), preferably at least two slide cylinders (5), are arranged, wherein the at least one secondary slide cylinder (3), preferably the at least two secondary slide cylinders (3), and/or the at least one slide cylinder (5), preferably the at least two slide cylinders (5), is/are designed as a multi-face cylinder.
B30B 15/16 - Control arrangements for fluid-driven presses
B21C 23/21 - Presses specially adapted for extruding metal
F15B 11/036 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
19.
CLAMPING DEVICE FOR AN EXTRUSION APPARATUS, EXTRUSION APPARATUS, AND USE OF AN EXTRUSION APPARATUS
The invention relates to an extrusion apparatus and a clamping device for an extrusion apparatus for clamping and/or fixing at least two tool elements of an extrusion tool packet received in a tool cassette, wherein the clamping device has an actuator for pressing the tool cassette against a counter-holder connected to a frame of the extrusion apparatus, wherein the actuator does not have an oil-hydraulic effective connection.
The invention relates to a method for operating a strip processing system having at least two units arranged one behind the other in a material flow direction for processing an endless metal strip which passes through the units in the material flow direction, as a result of which the units are coupled to one another. In order to improve the productivity of the individual units and the strip processing system as well as the quality of the processed endless metal strip in such a coupled operation, the invention proposes determining the (longest) throughput time of a volume portion of the metal strip through the slowest unit and specifying it as the target throughput time for at least one of the remaining units of the strip processing system. Furthermore, a target processing time is specified for the processing of a volume portion of the metal strip during at least one processing step. This target processing time is set so that it, or — in the case of a plurality of processing steps when passing through the remaining unit — the sum of their target processing times, is less than or equal to the specified target throughput time for the volume portion through the entire remaining unit.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
21.
DEVICE AND METHOD FOR CONVECTIVELY COOLING HOT ROLLED PRODUCTS
The invention relates to a device (1) and a method for convectively cooling hot steel products, in particular hot rolled products (5) in a rolling mill. The device (1) comprises at least one cooling bed which comprises at least one first and at least one second vertically extending cooling bed plane (2, 3), wherein the cooling bed planes (2, 3) are formed by at least one transport device which has at least one vertical conveyor means (4) that is designed to receive a rolled product (5) from a first horizontal conveyor means (6), raise the rolled product via a first vertical conveyor section, and deposit the rolled product on a second horizontal conveyor means (4) via a second vertical conveyor section. The circulating transport device is arranged in a substantially closed housing (7) which comprises means for producing a flow of air and/or gas, as a cooling medium, through the volume enclosed by the housing (7) and means for recovering energy from the air flow and/or gas flow which is guided through the housing and which is loaded with heat of the rolled product.
B21B 43/00 - Cooling beds, whether stationary or movingMeans specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
The invention relates to a method for operating at least one heating element in a thermal process device in order to heat a product to be heated, for example a metal strip. The heating element is operated using a specified power level. In order to extend the service life of the heating element, the remaining service life of the heating element is predicted, and the power level which is used to operate the heating element is controlled on the basis of the predicted remaining service life.
The operational reliability of reversing profile rolling methods, profiling roller systems and tandems of profiling rollers can be increased by avoiding strip-threading processes.
B21B 1/14 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling work of special cross-section, e.g. angle steel in a non-continuous process
24.
APPARATUS AND METHOD FOR DEGASSING MELTS IN CONTINUOUS CASTING PLANTS
The invention relates to an apparatus (1) and to a method for degassing a melt in a continuous casting plant, said apparatus comprising at least one container (2), wherein the container (2) can be divided into an upper region (2.1) and a lower region (2.2), wherein the upper region (2.1) of the container (2) has a first inlet (3) for a pouring stream (A) of the melt, and the lower region (2.2) of the container (2) has an outlet (4) for a molten bath (B) of the melt that collects in the lower region (2.2), wherein the upper region (2.1) of the container (2) has a second inlet (5) for an inert gas and an outlet (6) for generating a vacuum, at least in the upper region (2.1) of the container (2), and wherein the upper region (2.1) and the lower region (2.2) of the container (2) form a shared volume.
CASCADE CONTAINER ARRANGEMENT, METHOD FOR DEGASSING AND/OR REFINING A MOLTEN METAL COMPOSITION AND METALLURGICAL INSTALLATION FOR PRODUCING A MOLTEN METAL COMPOSITION
The present application relates to a cascade container arrangement (1) for degassing and/or refining a molten metal composition and providing same to a continuous casting plant (7), wherein the cascade intermediate container arrangement (1) is preferably intended for use in a metallurgical installation (2), comprising: a degassing container (8) for degassing and/or refining a casting stream comprising the molten metal composition; and a separate intermediate container (15), arranged downstream of the degassing container (8), via which the degassed and/or refined molten metal composition can be provided to the continuous casting plant (7), wherein the degassing container (8) has: an entry opening (10) which is arranged in the degassing container cover (9) and has a vacuum connection (23) for vacuum-tight connection to a ladle (6); an inlet (16) for an inert gas; an outlet (17) for generating a vacuum; and, in the degassing container base (11), an exit opening (12) for a molten bath (13) of the collected degassed and/or refined molten metal composition.
The invention relates to a method for controlling an installation for rolling metal strips with one or more rolling stands arranged in a rolling train for achieving a wear-optimized method of operation of the rolling stands, comprising reading and collecting and/or combining state variables of at least one rolling stand and/or of the metal strip from a control system for the process automation of the installation or directly from a field plane of the installation, wherein the state variables comprise physical measured values and/or values derived from measured values in the form of actual values of individual rollers of at least one rolling stand and/or of the metal strip during operation of the rolling train and/or predicted state variables of individual rollers of a rolling stand and/or of the metal strip from at least one process model of the process automation, comprising evaluation of the collected state variables in a rule-based manner or in the form of pattern recognition based on mass data, wherein the state variables are read, collected and/or combined and evaluated in a computer-implemented and automated manner, and the evaluation comprises the recognition of the current state of wear of individual rollers, the calculation of a service life prediction relating to individual rollers and at least one automatically created roller change prediction and/or adapted rolling programme scheduling based on the service life prediction.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
B21B 37/00 - Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
The invention relates to a device for sealing off a rolling bearing from soiled cooling water which is discharged from the end face of the roller (1) during the operation thereof. In particular, a lubricant gap (15) between a journal bush, which is arranged on the journal of the roller, and a coaxially arranged bearing bush of a bearing housing (5), in which the roller (1) is rotatably mounted, is sealed off. The sealing device according to the invention is produced in multiple parts, including among others a gap (15) between an annular collar (7) as part of the seal and a second limb (13) of an L-shaped annular profile (11). The annular collar (7) has a discharge groove (9) on the circumference thereof for discharging the cooling water flowing from the roller (1). In order to prevent the gap (15) and a region arranged downstream of the gap (15) from being contaminated with soiled cooling water and the L-shaped annular profile (11) from becoming non-functional as a result of the soiling, not only must the discharge groove (9) have a minimum height but the ratio of the height and width of the annular discharge groove to the diameter of the base of the discharge groove must lie within specific limits.
The invention relates to a method for producing a non-grain-oriented electrical steel strip (NGO), in particular fully finished NGO, having a carbon content of ≤ 30 ppm and an average grain diameter from 40 to 220 μm, preferably from 40 to 140 μm, more preferably from 40 to 60 μm or from 80 to 120 μm, in particular preferably from 80 to 120 μm, from a cold-rolled sheet or strip having a carbon content from > 30 ppm to 130 ppm, preferably between 30 ppm and 80 ppm, the method comprising carrying out high-temperature annealing and then decarburisation under a wet gas atmosphere. The invention also relates to system for producing a non-grain-oriented electrical steel strip (NGO), in particular fully finished NGO, having a carbon content of ≤ 30 ppm and an average grain diameter from 40 to 220 μm, preferably from 40 to 140 μm, more preferably from 40 to 60 μm or from 80 to 120 μm, in particular preferably from 80 to 120 μm, from a cold-rolled sheet or strip having a carbon content from > 30 ppm to 130 ppm, preferably between 30 ppm and 80 ppm, the system comprising a unit for carrying out a high-temperature annealing step and a unit for carrying out decarburisation under a wet gas atmosphere, which unit is arranged downstream of the unit for carrying out a high-temperature annealing step.
C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
The present application relates to a process for preparing lithium hydroxide from a lithium-containing ore, comprising at least the steps mentioned below: –A: calcining the lithium-containing ore; –B: reacting the calcined lithium-containing ore with chlorine gas to obtain lithium chloride; –C: reacting the lithium chloride with potassium hydroxide to obtain a solution of potassium hydroxide, lithium chloride, potassium chloride and lithium hydroxide in water; –D: reacting the potassium chloride by means of chlor-alkali electrolysis to form potassium hydroxide and chlorine gas and hydrogen; –E: recovering at least the lithium hydroxide from the solution obtained in step B. The advantage of the process according to the invention is that of avoiding the electrolysis (30) of LiCl, which is technically difficult to implement and, instead, firstly preparing a KCl which can then be electrolysed according to a proven process by chlor-alkali electrolysis (30).
C25B 1/46 - Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
30.
METHOD AND CONTROL LOOP FOR OPERATING A ROLL STAND
The invention relates to a method and a control loop for operating a roll stand for rolling a preferably metal rolled material. The method and the control loop are used in particular to set the roll gap of the roll stand to allow the rolled material to reliably run straight through the roll stand. For this purpose, the control signals for actuators (120) for setting the roll gap of the roll stand have a previously determined basic swivel value applied to them. To remove the need for manual correction settings pertaining to the basic swivel values for, or during, a rolling process, which settings were traditionally additionally necessary, the method according to the invention and a control loop according to the invention provide for a continuous swivel value characteristic to be determined when the rolled material (i) is rolled and for this swivel value characteristic (x) to be assessed to determine an actual swivel value for the beginning and/or end of the rolled material in light of the previously generated basic swivel value.
G05B 19/19 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
The invention relates to a process for producing a coated steel strip comprising the steps of: (a) producing a steel strip, (b) surface cleaning the steel strip, (c) heat treating the steel strip to prepare for coating thereof, (d) hot dip coating the steel strip, wherein in step (c) the steel strip is heated to a target temperature which is below the recrystallization temperature and above the melt bath temperature of step (d), characterized in that in step (c) the steel strip is heated at a heating rate of at least 10 K/second.
The invention relates to an induction heating device for heating a metallic article, having a machine direction along which the metallic article can be moved through a working region of the induction heating device in order to be heated, wherein a capacitor device for the induction heating device comprises at least two or more capacitor units which are arranged to be displaceable toward the working region or away from the working region transversely to the machine direction independently of each other.
The invention relates to an induction heating apparatus for heating a metal good, having a coil device with at least one induction coil for inductively heating the metal good and having a machine direction in which the metal good can be conveyed. The induction heating apparatus is characterized at least by a leveling apparatus by means of which a coil side of the at least one induction coil facing the metal good can be actively oriented relative to the metal good.
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
34.
COLD ROLLING STAND FOR COLD ROLLING A COLD ROLLED STRIP, METHOD FOR PRODUCING A COLD ROLLED STRIP, METHOD FOR CHANGING A ROLLER CONFIGURATION IN A COLD ROLLING STAND, AND ROLLER ASSEMBLY FOR USE DURING THE METHOD
The invention relates to a cold rolling stand (2) for cold rolling a cold rolled strip. The cold rolling stand (2) has an upper and a lower working roller (4, 6), and the upper and lower working rollers (4, 6) have different diameters. The invention additionally relates to a method for producing a cold rolled strip (7) using a cold rolling stand (2) and also to a method for changing a roller configuration in a cold rolling stand (2).
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
The invention relates to a heating device (1) and to a method for heating a slab (2) made of a steel material. The heating device (1) has at least a first, a second, and a third heating unit (11, 12, 13) which are arranged one behind the other in a passage direction R, and a transport device (14) having transport portions (14-1, ..., 14-6), the latter for transporting the slab from outside the heating device (1) into one of the heating units (11, 12, 13), between the heating units (11, 12, 13), and from the third heating unit (13) to a forming device (30). In order to make the heating process of a slab to a forming temperature necessary for its deformation more energy-efficient and flexible, the heating unit selected as the first to which the slab (2) is supplied from outside the heating device (1) is the one among the first, second, or third heating units (11, 12, 13) having an input temperature range that includes the actual temperature of the slab to be heated, as determined by the temperature-determining device (4).
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
36.
DEVICE FOR THERMAL SPRAYING, MANUFACTURING METHOD FOR MANUFACTURING SUCH A DEVICE, AND USE OF AN ADDITIVE MANUFACTURING METHOD
The invention relates to a device for thermally spraying a coating material onto a substrate body to be coated, the device comprising: a burner housing part having a combustion chamber, an input side for supplying process media, and an output side for dispensing a hot process gas, the burner housing part being generated by means of an additive manufacturing method.
B05B 7/20 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed by flame or combustion
The invention relates to a working roll for rolling a metal product, in particular for rolling a metal strip, having: - a main part made of metal; and - a wear protection layer (104) which is arranged on at least some regions of the main part, wherein the wear protection layer is a thermal spray protection layer, and the wear protection layer has a particle size of less than or equal to 50 µm, preferably less than or equal to 45 µm, in particular less than or equal to 30 µm or less than or equal to 20 µm.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
B21B 1/00 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B21B 31/00 - Rolling stand structuresMounting, adjusting, or interchanging rolls, roll mountings, or stand frames
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
38.
WORK ROLL FOR ROLLING A METAL PRODUCT, ROLL STAND, METAL STRIP, METHOD FOR PRODUCING A WORK ROLL, AND USE OF A WORK ROLL
The invention relates to a work roll for rolling a metal product, in particular for rolling a metal strip, having: - a main part made of metal; and - a wear protection layer which is arranged on at least some regions of the main part, wherein the wear protection layer is a thermal spray protection layer, said wear protection layer as well as the main part having a respective internal stress; and the wear protection layer and/or the main part has an internal compressive stress with a value which is greater than or equal to 200 N/mm2, preferably greater than or equal to 300 N/mm2, particularly greater than or equal to 500 N/mm2.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B21B 31/00 - Rolling stand structuresMounting, adjusting, or interchanging rolls, roll mountings, or stand frames
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
39.
INDUCTION HEATING DEVICE, OPERATING METHOD, PRODUCTION LINE, USE OF SUCH AN INDUCTION HEATING DEVICE, USE OF SUCH AN OPERATING METHOD, AND USE OF SUCH A PRODUCTION LINE
The invention relates to an induction heating device for heating a metal product, comprising a resonant circuit for generating a magnetic field in order to heat the metal product, wherein the resonant circuit has at least one coil, and the coil is movably mounted in the vertical direction; an energy supply device for supplying the resonant circuit with electric energy; an adjusting device for adjusting the position of the coil along the vertical direction; a sensor device for detecting the geometric profile of the metal product on the metal product side corresponding to the coil, the active region of the sensor device being arranged in front of the coil with respect to the conveyor direction of the metal product; and a controller for controlling and/or regulating the vertical position of the coil, said controller being connected to the sensor device so as to transmit data. The induction heating device is characterized in that the controller is designed to set a minimum distance between the metal product and the coil while taking into consideration the geometric profile of the metal product.
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
40.
INDUCTION HEATING DEVICE, OPERATING METHOD, PRODUCTION LINE, USE OF SUCH AN INDUCTION HEATING DEVICE, USE OF SUCH AN OPERATING METHOD, AND USE OF SUCH A PRODUCTION LINE
The invention relates to an induction heating device for heating a metal product, having at least one resonant circuit with a coil for generating a magnetic field, which can interact with the metal product in a working region of the coil, and a machine direction, along which the metal product can be transported through the working region, wherein the coil is movably mounted relative to the metal product transversely to the machine direction. The induction heating device is characterized in that the coil can be adjusted in a flow spacing, by means of which a homogenous degree of electric efficiency can be produced along the metal product, before the metal product arrives at the coil and/or while the metal product is running into the coil or the working region of the coil relative to the surface side of the metal product, said side lying opposite the coil.
The invention relates to a working roll (1) for rolling a metallic item, in particular for rolling a metallic strip, comprising: - a main body (4) made of metal; and - an antiwear layer (2) at least partially applied to the main body, wherein: the antiwear layer is a thermal sprayed coating; and the antiwear layer has a chrome proportion of smaller than or equal to 90 wt.%, preferably smaller than or equal to 60 wt.%, and especially preferably smaller than or equal to 30 wt.%.
The invention relates to a method for producing or repairing a working roll (100) which has a main part (102) and a wear protection layer (104), wherein particles (112) are thermally applied onto the working roll (100). The method is characterized in that during the thermal application of the particles, 50% or more of the particles, preferably 60% or 75% or more, in particular 80% or more of the particles, remain on the main part and/or on an already applied wear protection layer adhered to the main part and/or on the wear protection layer.
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B05B 7/20 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed by flame or combustion
B05B 14/30 - Arrangements for collecting, re-using or eliminating excess spraying material comprising enclosures close to, or in contact with, the object to be sprayed and surrounding or confining the discharged spray or jet but not the object to be sprayed
B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
43.
WORKING ROLL FOR ROLLING A METALLIC ITEM, ROLL STAND, METALLIC STRIP, METHOD FOR PRODUCING A WORKING ROLL, AND USE OF A WORKING ROLL
22C) proportion of smaller than or equal to 50 wt.%, preferably smaller than or equal to 33 wt.% and especially preferably of smaller than or equal to 10 wt.% or smaller than or equal to 5 wt.%.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
B21B 1/00 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B21B 31/00 - Rolling stand structuresMounting, adjusting, or interchanging rolls, roll mountings, or stand frames
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
44.
WORKING ROLL FOR ROLLING A METALLIC ITEM, ROLL STAND, METALLIC STRIP, METHOD FOR PRODUCING A WORKING ROLL, AND USE OF A WORKING ROLL
The invention relates to a working roll for rolling a metallic item, in particular for rolling a metallic strip, comprising: - a main body made of metal; and - an antiwear layer at least partially applied to the main body, wherein the antiwear layer is a thermal sprayed coating; and the antiwear layer has a layer thickness of smaller than or equal to 70 µm, preferably smaller than or equal to 40 µm, and especially preferably smaller than or equal to 15 µm.
C23C 4/12 - Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
B21B 1/00 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/28 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by cold-rolling
B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
B21B 31/00 - Rolling stand structuresMounting, adjusting, or interchanging rolls, roll mountings, or stand frames
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
The invention relates to a method for operating an annealing furnace comprising a heating zone for heating a metal sheet. The metal sheet is transported reversingly through an inductive heating device (114) within the heating zone (110) of the annealing furnace in order to increase the temperature, in particular the surface temperature, of the metal sheet. For effectively preventing overheating of the metal sheet, and consequently excessive formation of scale on the surface of the metal sheet, the method according to the invention provides the following steps: b) sensing the surface temperature of the metal sheet before and/or within the heating zone (110); c) comparing the sensed surface temperature with a specified limit value TG for the surface temperature; and d) only carrying out the reversing transportation of the metal sheet through the inductive heating device (114) as long as the limit value TG for the surface temperature is not exceeded; or d') emitting a signal, in particular to a control device (130) or a control console of the annealing furnace (100), if the limit value TG for the surface temperature of the metal sheet is exceeded.
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27B 9/40 - Arrangements of controlling or monitoring devices
The invention relates to a method (10) for optimising the strand guide (2) of a continuous casting machine (1), in particular a slab casting machine or billet continuous casting machine, comprising the steps of: detecting (11) the machine state of the strand guide (2); evaluating (12) the detected (11) machine state in order to determine the influence of the machine state on a semi-finished product (7), in particular on the semi-finished product shell, which is transported in the strand guide (2); identifying (13) adjustments to the strand guide (2) on the basis of the evaluation (12) of the machine state in order to reduce the influence of the machine state on the semi-finished product (7) which is transported in the strand guide (2); and carrying out (14) the identified (13) adjustments to the strand guide (2). The invention also relates to a computer program for carrying out the method according to the invention.
The invention relates to a computer-implemented method for linking dashboard data with the three-dimensional model of a production line that consists of multiple modules, and to a system for carrying out said method.
G06F 30/20 - Design optimisation, verification or simulation
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
B22D 11/16 - Controlling or regulating processes or operations
G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
G06F 3/0481 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
G06F 16/26 - Visual data miningBrowsing structured data
G06T 11/20 - Drawing from basic elements, e.g. lines or circles
48.
DEVICE FOR HEATING A TOOL OF AN EXTRUSION PRESS INSIDE AND/OR OUTSIDE THE EXTRUSION PRESS BY MEANS OF AT LEAST ONE ELECTRIC HEATING APPARATUS INTEGRATED IN THE TOOL
The invention relates to a device for transmitting data and/or heating a tool of the extrusion press outside the extrusion press by means of at least one electric heating apparatus integrated in the tool, wherein a present plug connection is designed such that it can be coupled or decoupled without manual intervention. The invention also relates to a method for data transmission and/or the heating of a tool of an extrusion press outside the extrusion press.
The invention relates to a wide-side mould plate (10) of a mould for continuously casting metal, comprising a funnel-shaped pouring-in region (12), and a rear wall (16) provided with cooling ducts (14), wherein a liquid cooling medium can be circulated in the cooling ducts (14), and the cooling ducts (14) each have a front end face (17) which is adjacent to an inner wall surface (18) of the wide-side mould plate (10). The front end face (17) of at least one cooling duct (14) which is adjacent to the funnel-shaped pouring-in region (12) runs equidistantly to the adjacent funnel surface (T) of the pouring-in region (12) in at least one cross section of the wide-side mould plate.
The invention relates to an apparatus (100) having a coiling device (110) for winding a strip. A bridge (120) extends over the coiling device (110). In order to simplify the stationary coiling device (110) within the apparatus (100), i.e. in particular below the bridge (120), and to make the stationary coiling device more safe for the maintenance personnel to perform, according to the present invention at least one carrying device (126, 128) is attached to the bridge and/or to a bridge head (121) so that parts of the coiling device (110) can thereby be easily and safely transported.
B21C 47/06 - Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
B21C 47/32 - Tongs or gripping means specially adapted for reeling operations
B21C 47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
51.
METHOD, MEASURING ARRANGEMENT AND SYSTEM FOR MEASURING AN INTERNAL CONTOUR, IN PARTICULAR AN INTERNAL THREAD ON A SLEEVE OR A SLEEVE END OF A PIPE
The invention relates to a method for measuring an internal thread (2) on a sleeve or an sleeve end of a pipe (1) using a measuring arrangement having at least two sensors (3, 4), wherein the measuring arrangement comprises a first inner sensor (3) and at least a second outer sensor (4), wherein the first inner sensor (3) and the second outer sensor (4) are arranged at least radially at a defined distance from each other with respect to a longitudinal axis of the pipe (1), wherein the measuring arrangement is arranged in relation to the sleeve or the sleeve end of the pipe (1) such that the first sensor (3) detects the inside of the pipe (1) and that the second sensor (4) detects the outside of the pipe (1), wherein the method comprises the first sensor (3) scanning the internal thread (2) at least in a first measurement pass along a first measurement path parallel to a longitudinal axis of the pipe (1), wherein the measurement signals of the second outer sensor (4) determine the outside diameter of the pipe (1) as a reference for the measurement signal of the first sensor (3), and wherein the detected measurement values are stored and/or processed using means for electronic data processing for the purpose of mapping a thread profile. The invention also relates to a measuring arrangement and to a system for carrying out the method.
G01B 11/12 - Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
52.
METHOD FOR APPLICATION-ORIENTED DESIGN AND/OR OPTIMISATION OF THE WEAR RESISTANCE OR LOAD RESISTANCE OF A TRIBOLOGICALLY LOADED COMPONENT IN A ROLLING MILL
The invention relates to a method for the application-oriented design and/or optimisation of the wear resistance and/or load resistance of a mechanically, in particular tribologically, loaded component in a rolling mill, in particular a roller (1) or a roller system for engagement in rolled stock in a rolling mill, wherein the component has a base material and at least one functional layer (3) designed with respect to an expected load (3), the method comprising the following steps: - detecting tribological data during the production and/or restoration of at least one component, - detecting wear and/or load data resulting from the operational application of the component, - correlating the tribological data from the production and/or restoration of the component with the wear data and/or load data from operation in an electronic database, and - designing and/or changing the structure of the component in an automatic load-oriented manner and/or changing the operation-related loading of the part in an automatic manner.
G06F 30/17 - Mechanical parametric or variational design
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 119/04 - Ageing analysis or optimisation against ageing
53.
METHOD AND SYSTEM FOR COMPUTER-IMPLEMENTED DESIGN AND/OR (FURTHER) DEVELOPMENT AND/OR LAYOUT AND/OR SERVICE LIFE OPTIMISATION OF MACHINE ELEMENTS OF A METALLURGICAL PLANT
The invention relates to a method for the computer-implemented design and/or (further) development and/or layout and/or service life optimisation of machine elements of a metallurgical plant, comprising the following method steps: calculating and/or providing at least one first data set comprising structural characteristic data of the machine element based on an assumed load and service life expectation of the machine element in operational use; detecting the actual load and/or load history of the machine element in the metallurgical plant and/or from the production history of the machine element in the form of application-related measurement data and information from operational use and/or production of the machine element; and returning and using the measurement data to calculate at least one second changed data set with structural characteristic data, which are optimised taking into consideration the installation situation of the machine element and/or the application-related measurement data.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 30/17 - Mechanical parametric or variational design
G06F 119/04 - Ageing analysis or optimisation against ageing
54.
MECHANICALLY, IN PARTICULAR TRIBOLOGICALLY, STRESSED COMPONENT AND METHOD FOR ITS PRODUCTION
The invention relates to a mechanically, in particular tribologically, stressed component in a rolling mill, the component comprising a main body of a base material and at least one functional layer (3) applied to the main body and consisting of at least one material different from the base material, wherein the material of the at least one functional layer (3) has a greater wear resistance than the base material, wherein the main body comprises at least one further, outer layer as a sacrificial layer (5), which at least partially encloses the at least one functional layer (3), and the sacrificial layer (5) consists of a material which has a lower wear resistance than the at least one functional layer (3). The invention also relates to a method for producing or restoring such a component.
G06F 30/17 - Mechanical parametric or variational design
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
B22D 11/128 - Accessories for subsequent treating or working cast stock in situ for removing
B22D 19/02 - Casting in, on, or around, objects which form part of the product for making reinforced articles
B22D 19/08 - Casting in, on, or around, objects which form part of the product for building up linings or coverings, e.g. of anti-frictional metal
B22D 19/16 - Casting in, on, or around, objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
G06F 119/04 - Ageing analysis or optimisation against ageing
The invention relates to a method for processing a cast strand of metal, in particular steel, comprising the following steps: ● pouring liquid metal into a die in a casting machine for creating the endless cast strand (20) with a starting width (W0); ● compressing the cast strand (20) by means of a compressing device (12) from the starting width (W0) to a smaller interim width (W1) ; and - rolling flat the cast strand (20) by means of a horizontal rolling stand (14), whereby the thickness distribution of the cast strand (20) over its width is evened out after the compressing operation, and the width of the cast strand (20) is increased from the interim width (W1) to a width (W2) after the rolling-flat operation. In order to achieve a desired target width (W2) for the cast strand (20) after the rolling-flat operation in this known method, the method also provides that the compressing of the cast strand (20) is performed to such an interim width (W1) that the desired target width (W2) is obtained as the width of the cast strand (20) downstream of the horizontal rolling stand (14) after the rolling-flat operation - while taking into account the constancy of mass flow and the rewidening effect caused by the horizontal rolling stand (14).
B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B21B 13/06 - Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically
Disclosed is a computer-implemented method for automatically converting a parametric model of a main structural unit of an entire system into a polygonal mesh model of the entire system.
G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
G06F 30/17 - Mechanical parametric or variational design
G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation
57.
INDUCTION HEATING DEVICE, SYSTEM, PRODUCTION LINE, METHOD, AND USE
The invention relates to an induction heating device for heating a metallic material, said induction heating device comprising: a number of at least two resonant circuits each for generating a magnetic field for heating the metallic material; and a power supply device for supplying the resonant circuits with electrical power, the power supply device comprising an isolator switch for connecting the induction heating device to an electrical power supply, and at least one inverter for converting a direct current into an alternating current for supplying power to a resonant circuit, the power supply device comprising a switching device, the switching device being designed to enable at least indirect energy coupling between the isolator switch and the resonant circuits, and the number of resonant circuits capable of being simultaneously coupled with energy being smaller than the number of resonant circuits in the induction heating device.
The invention relates to a method for improved slag control in a metallurgical vessel. To date, slags cannot be used further in the dephosphorization of a metal melt and have to be deposited. By means of the method according to the invention, the phosphorus content in the slag is enriched to such an extent that further use is possible.
The invention relates to a thermal treatment device for heating and treating a metal product, comprising: a heating device having a nominal power density into the metal product of greater than or equal to 5·105W/m2, preferably greater than or equal to 1·106W/m2, more preferably greater than or equal to 5·106W/m2and particularly preferably greater than or equal to 2·107W/m2, in particular a first heating device; a homogenizing device, in particular a first homogenizing device, the homogenizing device being designed to reduce a temperature difference between a surface temperature of the metal product and a core temperature of the metal product to less than or equal to 50°C, preferably to less than or equal to 20°C and particularly preferably to less than or equal to 10°C; a treatment device for treating the metal product; and a conveying device for conveying the metal product from the heating device toward the treatment device.
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/10 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated heated by hot air or gas
The present invention discloses an apparatus for producing a metallic product, in particular for producing a metallic long product, in particular for producing a metallic bar and/or a metallic wire, in particular a metallic product of an iron-based alloy, comprising: - an electric arc furnace for producing a molten metal from a metallic raw material; - a continuous caster for producing a billet strand from the molten metal; and - a rolling plant for forming the billet strand into the metallic product; wherein the apparatus is set up to reduce a sum of scope 1 CO2 emissions and scope 2 CO2 emissions, in particular the apparatus comprises a sum of scope 1 CO2 emissions and scope 2 CO2 emissions of less than or equal to 300 kg/t of the metallic product, preferably less than or equal to 275 kg/t and particularly preferably less than or equal to 250 kg/t.
C21C 5/52 - Manufacture of steel in electric furnaces
H05B 7/20 - Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated
61.
GEAR, METHOD FOR PRODUCING A GEAR AND USE OF SUCH A GEAR
The invention relates to a gear, having a reference diameter of greater than or equal to 1.5 m, with a gear hub and a gear rim, which gear is characterised in that the gear hub and gear rim are releasably connected to one another and that the gear hub consists of a plurality of elements that are welded together.
F16H 55/12 - Toothed membersWorms with body or rim assembled out of detachable parts
62.
SEALING SYSTEM FOR USE WITH A DUMMY BAR HEAD OF A CONTINUOUS CASTING SYSTEM AND METHOD FOR PRODUCING A METAL PRODUCT BY MEANS OF CONTINUOUS CASTING USING THE SEALING SYSTEM
The invention relates to a sealing system for use with a dummy bar head of a continuous casting system and to a method for producing a metal product by means of continuous casting using the sealing system. It is possible to adapt the sealing system to different continuous casting formats by using plates which can be moved with respect to one another.
The invention relates to a cooling module of a cooling device for cooling a hot-rolled metal strip-shaped product using a coolant, the cooling module comprising: - at least one cooling bar having a coolant chamber and a plurality of coolant outlet pipes, which are fluid-communicatingly connected to the coolant chamber and each comprise at least one coolant outlet opening for applying the coolant to the strip-shaped product; - at least one coolant feed, which is at least indirectly fluid-communicatingly connected to the coolant chamber, wherein the coolant feed is designed to be at least indirectly fluid-communicatingly connected to a coolant reservoir, wherein the coolant reservoir is designed to provide a pressure difference between the coolant reservoir and the coolant outlet opening; - at least one coolant valve, wherein the coolant valve is arranged between the coolant feed and the coolant chamber; - wherein, under the influence of the pressure difference, when the coolant valve is fully opened in a step-like manner, the cooling module exhibits a time-variant behaviour of a coolant rate in the coolant outlet opening, which behaviour can be described using a time-variant Heaviside step function comprising a delay time and an equalisation time; and - wherein the sum of the delay time and the equalisation time is less than or equal to 3.0 s, preferably less than or equal to 2.0 s, and particularly preferably less than or equal to 1.5 s.
B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
C21D 1/667 - Quenching devices for spray quenching
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
The invention relates to a rolling mill (100) and a method for the hot rolling of a metal strip (20) using at least one finishing roll stand (110). After the finish rolling, the flatness of the metal strip (20) is measured and the metal strip is then wound by means of a coiling device (160). In order to improve the result of the flatness measurement, the rolling mill (100) according to the invention and the method according to the invention provide that, after the metal strip has passed through the last finishing roll stand (110), the metal strip is cross-cut into individual strip segments (20') by means of a cutting device (130), before the metal strip is coiled. After the cross-cutting of the metal strip, the flatness measurement according to the invention is carried out on at least some of the strip segments (20'), without tensile stresses, before the strip segments pass through a driver device (150) upstream of the coiling device (160).
B21B 38/02 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
65.
METHOD FOR ANALYSING THE VIBRATION BEHAVIOUR OF A SYSTEM
The invention relates to a method and to a computer programme for analysing the vibration behaviour of a system consisting of at least a first and a second roll stand which are coupled to one another via a belt stretched into both roll stands. In order to better analyse the vibration behaviour of individual roll stands, it is known to first capture the vibrations of the roll stands as a temporal vibration signal using sensors and then to transform said temporal vibration signal into an amplitude spectrum in the frequency domain. The amplitude of said amplitude spectrum is then analysed to determine whether it is above a predefined amplitude threshold value. If so, an undesirable rattling event is detected. In order to also be able to apply such a rattling event to systems comprising at least two roll stands which are connected to one another via a common belt, according to the invention the amplitude spectra of the two roll stands is created and then a common frequency range is searched for and identified in which the two amplitude spectra are compared with one another. A rattling event is detected for said system only if peaks of said two amplitude spectra lie in the common frequency range and if both peaks have amplitudes above defined amplitude threshold values.
The invention relates to a method and a computer program for operating a reel device (100). The reel device (100) comprises a reel mandrel (120) for winding up a strip material (20). For this purpose, the reel mandrel has a plurality of segments (124) distributed over the perimeter thereof, which are each joined, via at least two link plates, to a control rod (122) that can be axially moved in the reel mandrel, for radially extending and retracting the segment into at least one operating position. In order to be able to reliably identify wear statuses of internal components of the reel mandrel that are not visible from the outside, the method according to the invention provides that, during the service life of the reel device, the segments are repeatedly moved into determined operating positions and the respective distances of the segments in relation to a stationary operating position are determined. The distances recorded at different times are then evaluated in terms of whether they exceed or fall below a predefined threshold value during the service life of the reel device. In this case, it is concluded that there is wear.
The invention relates to a process for operating a thermal treatment line for the flexible thermal treatment of metal pre-products, to a thermal treatment line configured and suitable for carrying out the process, and to a casting-rolling mill and a process for operating a casting-rolling mill having a thermal treatment line according to the invention. In comparison with previous thermal treatment lines and processes for operating said thermal treatment lines, the thermal treatment line according to the invention allows flexible operation. Emissions and production costs in the process are thereby reduced.
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
B21B 41/00 - Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curvesLoop lifters
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B65G 1/00 - Storing articles, individually or in orderly arrangement, in warehouses or magazines
The invention relates to a method and a computer program for operating a production system for a metal product. The production system comprises a cooling line in the form of an assembly for cooling the metal product during production. The cooling line has other assemblies arranged upstream thereof for producing the metal product. At least individual ones of these assemblies are assigned assembly-specific process models, which reflect the behaviour of the assemblies and which are designed to predict the temperature management of at least one section of the metal product to be produced in a future passage through the respective assembly. According to the invention, in order to not be conveying any unnecessary amounts of coolant into the coolant circuit, but also ensure that there is always a minimum required amount of coolant available for the cooling line, the temperature management predictions are combined using a higher-level temperature model to form a temperature path over the length of the relevant assemblies, and based on this temperature path, using a coolant requirement model, the coolant requirement of the cooling line is predicted for the future passage of the metal product through the respective relevant section.
The present application relates to a method for producing a low-carbon flat steel product, more particularly a interstitial-free cold strip, wherein firstly i) a molten steel composition, the maximum carbon content of which is 300 ppm, the maximum nitrogen content of which is 40 ppm and the maximum oxygen content of which is 1000 ppm, is provided; ii) the molten steel composition is then treated in a secondary metallurgic manner under vacuum with a maximum process pressure of 0.5 mbar such that a molten steel composition, the maximum carbon content of which is 10 ppm and the maximum nitrogen context of which is 25 ppm, is obtained; and wherein during and/or after the secondary metallurgic treatment the carbon (C) and nitrogen (N) contained in the molten steel composition is bound through the sub-stoichiometric addition of the alloy elements titanium and/or niobium; iii) the molten steel composition obtained according to step ii) is then continuously cast to form a strand material and is divided into individual slabs; iv) the slabs are then pre-rolled in the warm state to form a preliminary strip and at a hot-rolling temperature in the range from 800 bis 1000 °C are finish-rolled to form a hot strip with a thickness from 1.0 to 6.0 mm and are coiled at a coiling temperature of 600 to 800 °C; and v) the coiled hot strip is pickled, then cold-rolled to form a cold strip and then undergoes an annealing process and optionally is hot-dip coated and/or tempered.
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
70.
METHOD AND CONTROL DEVICE FOR OPERATING A STRIP TREATMENT INSTALLATION FOR PROCESSING A STRIP, IN PARTICULAR A METAL STRIP OR ROLLING MATERIAL
The invention relates to a method for operating a strip treatment installation (1) for processing a strip (2), in particular a metal strip or rolling material, wherein the strip (2) is guided through the strip treatment installation (1) along a transportation direction on transportation rollers (3) and the strip treatment installation (1) comprises at least two successive strip movement control devices (4, 5, 6) along the transportation direction, wherein the strip movement control devices (4, 5, 6) are designed to detect and adjust the position of the strip (2) transverse to the transportation direction, comprising the steps of: detecting the position of the strip (2) transverse to the transportation direction by means of sensors, in particular sensors of the strip movement control devices (4, 5, 6) of the strip treatment system (1), identifying properties of the strip (2) by means of the sensors, said properties influencing the position of the strip (2) transverse to the transportation direction, assigning the identified properties of the strip (2) to corresponding points or segments of the strip (2), and proactively adjusting the position of the strip (2) transverse to the transportation direction at the strip movement control devices (4, 5, 6) following in the transportation direction on the basis of the properties for the corresponding points or segments of the strip (2) that are identified by premounted sensors, in particular premounted strip movement control devices (4, 5, 6). The invention also relates to a control device for operating a strip treatment installation (1) for processing a strip (2), in particular a metal strip or rolling material.
The invention relates to a method for the preparation of plastic waste containing polymer hydrocarbon compounds, wherein, a gas mixture (16) is generated from the plastic waste (12) in a reactor (13) via plasmalysis, said gas mixture containing gaseous hydrogen and optionally methane, wherein, according to the invention, the gaseous hydrogen (16) and optionally the methane contained in the gas mixture and/or elemental carbon (30) generated in the plasmalysis is then used in a metallurgical process (17). The plasmalysis of plastic waste (12), in which the excitation occurs e.g. via microwaves, uses less energy than the hitherto usual electrowinning of hydrogen. The hydrogen generated in this way can be used in reductive processes, e.g. in crude iron production (17a), direction reduction (17b) or the production of steel (17c), wherein no atmosphere-damaging carbon dioxide is produced. The carbon (30) also generated in the plasmalysis can also be used in metallurgical methods, e.g. for the production of electrodes (32). The invention also relates to a system for the preparation of plastic waste, in which the above-mentioned method is applied.
22-neutral production of copper from a copper-containing starting material. According to the invention, during the melting and/or reduction process, a hydrogen-containing gas is supplied in such a quantity that the steam content in the exhaust gas lies within a specified target value range.
The invention relates to a continuous-casting apparatus (10) and to a method for the continuous casting of a metal strand using a continuous-casting mould (11), through which molten metal is passed during the casting process. The continuous-casting apparatus (10) comprises a device (14) with at least one electromagnetic coil unit (16; 17) for applying magnetic fields to the melt in the continuous-casting mould (11), wherein this device (14) is arranged laterally in relation to the continuous-casting mould (11) and the device (14) with the electromagnetic coil unit (16; 17) is movable translationally and horizontally in the direction of the continuous-casting mould (11) or away from it. The electromagnetic coil unit (16; 17) is movable translationally in the horizontal direction (H) and in the vertical direction (V).
The invention relates to a method, a computer program product and a cold rolling stand for the cold rolling of a metal strip. The cold rolling stand has at least one working roll and an inductive heating device which extends in the longitudinal direction of the working roll and is intended for heating the surface of the working roll (110). For setting a desired profiling of the rolling gap, the method according to the invention provides that the working roll is first heated from its current surface temperature by a temperature difference to a working temperature required by a multizone cooling device (150) and is subsequently cooled down again in a suitable way by the multizone cooling device. The method according to the invention provides that this temperature difference is used as a basis for calculating a required amount of thermal energy that has to be fed to the working roll (110) in a respective operating mode of the cold rolling stand in order to heat up the surface of the working roll (110) to the working temperature for the multizone cooling device. Only after corresponding heating of the surface of the working roll does the setting of a desired resultant temperature distribution take place by zonal cooling of the surface of the working roll by means of the multizone cooling device to obtain the desired profiling of the rolling gap.
B21B 37/32 - Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
75.
METHOD, COMPUTER PROGRAM AND COOLING SYSTEM FOR MONITORING A COMPONENT OF THE COOLING SYSTEM IN A ROLLING MILL
The invention relates to a method and a computer program for monitoring a component of a cooling system in a rolling mill, wherein the cooling system comprising the component is used to apply a coolant on a rolled stock to be cooled. In order to be able to apply a coolant on the rolling stock with a desired target pressure or target volume flow, not only when the component is in the new state but also with the component in the used state, the cooling system according to the invention provides for the acquisition of actual characteristic data for the component during and/or after the period of use of the component 3. These actual characteristic data are compared with predetermined target characteristic data, in order to determine a possible characteristic data deviation Δ, which represents a malfunction of the component 3 with respect to its new state. The present invention then provides various measures for minimising the characteristic data deviation, if this exceeds a predetermined threshold value.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
76.
METHOD FOR PRODUCING METAL STRIPS BY CONTINUOUS CASTING AND ROLLING
The invention relates to a method for producing metal strips by continuous casting and rolling, in which a slab (3) is first cast in a casting machine (2), wherein the slab (3) is cleaned in a cleaning device (4) placed after the casting machine (2) in the conveying direction, and the slab (3) then undergoes a heat treatment in a heat treatment device (11), wherein, between the cleaning device (4) and the heat treatment device (11), the slab (3) undergoes a smoothing process by means of two interacting smoothing rolls (13, 14). In order to reduce energy and production costs and to improve the surface of the slabs before the first forming process, according to the invention the smoothing process is carried out such that the slab (3) does not undergo a substantial reduction in thickness, and the roughness depth of the smoothed surface of the slab (3) is reduced.
B22D 11/04 - Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
The present application relates to a copper plate (1) for a continuous casting die (2), in particular for use in a continuous casting die (2), comprising a plate-shaped body (3) with a hot-face and a cool-face side (4, 5), an inlet-side end face (6) and an outlet-side end face (7), arranged axially opposite from the inlet-side end face (6), and also a first and a second side face (8, 9); a half-funnel-shaped recessed portion (10), which is formed on the hot-face side (4) and is delimited by two edge regions (11, 12) extending axially on the hot-face side (4); a multiplicity of cooling channels (15, 23, 24) taking the form of slits, which are formed on the cooling-face side (5) and extend axially between the inlet-side and the outlet-side end face (6, 7); and also an intensive cooling zone (19, 20), which is formed in the edge regions (11, 12) of the hot-face side (4), preferably in a transitional region (17, 18) from the recessed portion (10) to the edge region (11, 12), and extends over at least part of the axial length of the plate-shaped body (3), the intensive cooling zones each being formed by a multiplicity of drilled holes (21, 22) staggered in relation to one another and incorporated in the inlet-side end face (6).
The invention relates to a method and to a computer program product for operating a casting-rolling system (100) and to the corresponding casting-rolling system itself. The casting-rolling system (100) consists of a casting system (110) and a rolling system (120) arranged downstream in the casting direction (G). In a continuous operating mode, the casting system and the rolling system are coupled to one another via a continuously cast strand (20). In the casting system (110) or at least before the first roll stand (122), driver roll pairs are provided to convey the cast strand through the casting-rolling system. To at least reduce, advantageously to prevent, undesired disruptions in the casting process and/or the slipping through of the drive rolls, according to the present invention only one of these driver roll pairs (118) acts as the master driver roll pair to control the casting speed of the cast strand (20). In addition to this master drive roll pair (118), at least one slave drive roll pair (116) is provided in the casting system (110) or before the first roll stand (122), said slave roll drive pair having to follow the master drive roll pair (118) with regard to the casting speed. According to the invention, the slave drive roll pair (116) is torque-controlled.
B22D 11/12 - Accessories for subsequent treating or working cast stock in situ
B22D 11/128 - Accessories for subsequent treating or working cast stock in situ for removing
B22D 11/14 - Plants for continuous casting, e.g. for upwardly drawing the strand
B22D 11/16 - Controlling or regulating processes or operations
B22D 11/20 - Controlling or regulating processes or operations for removing cast stock
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
The invention relates to a method for monitoring and controlling open-die forging processes, comprising the steps of: a) calculating the geometry development of a workpiece during open-die forging by using empirical models, b) in parallel with step a), that is to say at the same time or at least partially temporally overlapping step a), calculating the workpiece temperature across the cross-section of the forged workpiece, c) calculating the distribution of the change in shape over the length of the workpiece, preferably by using the geometry development calculated in step a), and d) manually or automatically controlling the distribution of the change in shape in a predefined region on the basis of the distribution of the change in shape calculated in step c). The invention also relates to an open-die forging press which is designed and set up to perform the method.
The present application relates to a copper plate (1) for a continuous casting mold (2), in particular for use in a continuous casting mold (2), comprising a plate-type body (3) having a hot surface side (4), which is delimited by an entry-side narrow side (5) and an exit-side narrow side (6) axially opposite from the entry-side narrow side (5) and by a first broad side (7) and a second broad side (8) radially opposite from the first broad side (7), the hot surface side (4) having a first tongue-shaped and flat surface portion (10), which extends from the entry-side narrow side (5) of the plate-type body (3) over at least part of the axial length of the plate-type body toward the exit-side narrow side (6) and defines a first plane, and a second surface portion (11), which extends around the first surface portion (10) and the outer subregion portions (14, 15) of which, adjoining at least the respective broad sides (7, 8), have a level which is lower than the first plane of the first tongue-shaped and flat surface portion (10).
The invention relates to a method for heating, drying and/or sintering a metallurgical vessel (1), which is provided with a fireproof lining (2) in its interior. To enable the heating, drying and/or sintering of a vessel in the most ecological way possible without the use of gas, and yet as efficiently as possible, the invention provides that a carrier element (3) is inserted into the interior of the vessel (1), which is provided on its outer circumference with a number of electrical and vacuum-compatible heating elements (4), and that the electrical heating elements (4) are supplied with electrical energy under vacuum for a predetermined time for heating, drying and/or sintering.
The invention relates to a method for radial forging of a workpiece from an initial state to an end state, preferably following a pass schedule multiple times from an initial state to an end state, by means of a radial forging machine, comprising forging tools arranged around the periphery of the workpiece, preferably four forging tools, wherein the radial forging machine is designed and configured to perform the radial forging in at least three modes of operation, which comprise: A) radial forging in the spiral mode, B) radial forging in the straight mode and C) radial forging in the flat mode, and characterised in that the shaping of the workpiece from an initial state to an end state is a sequence of radial forging passes, wherein at least two of the three different modes of operation are applied in succession. The invention further relates to a radial forging machine for carrying out this method.
The present invention relates to a method for reducing metal oxide (M1) by means of a reducing gas or gas mixture, said method having the following method steps: - feeding (V1) at least one starting material into a reactor (40); - generating (V2) the reducing gas or gas mixture by heating the at least one starting material by means of thermal energy in the reactor (40), the thermal energy being obtained at least in part by means of concentrated solar radiation; and - combining (V3) the metal oxide (M1) to be reduced and the reducing gas or gas mixture used to reduce the metal oxide (M1) to be reduced. The present invention also relates to an apparatus (1) for reducing metal oxide (M1) by means of a reducing gas or gas mixture, the apparatus (1) having the following features: - the apparatus (1) is designed to heat at least one starting material in a reactor (40) for generating the reducing gas or gas mixture by means of thermal energy obtained at least in part from concentrated solar radiation; and - the apparatus (1) has a device (50) for combining the reducing gas or gas mixture with the metal oxide (M1) to be reduced.
The present application relates to a degassing device (1) for degassing a molten metal pouring stream, the degassing device (1) being provided preferably for use in a metallurgical installation (33), and the degassing device comprising a vacuum container (3), which is at least partly lined with refractory material and which has an inlet opening (5) in its vacuum container cover (4), an outlet opening (7) in its vacuum container base (6), the outlet opening being aligned with the inlet opening (5), and two vacuum chambers (11, 12) in its interior, which are mutually separated by an intermediate base (10) and are each provided with at least one vacuum port (19, 20), wherein the intermediate base (10) comprises a through-opening (13), which is aligned with the inlet opening (5) and the outlet opening (7) and can be opened and closed by means of a closure device (14). The present application also relates to a method for degassing a molten metal pouring stream (34) by means of the degassing device (1) according to the invention.
The invention relates to a shaft furnace (1) for smelting charge material to form molten copper, comprising a vertically disposed steel jacket (2) and a refractory lining (3) disposed therein, wherein the steel jacket (2) has at least a charging opening (4) for feeding the charge material into the shaft furnace (1) and a tap opening (5) for withdrawing the molten copper from the shaft furnace (1), and wherein burners (6), preferably a plurality of burners (6) disposed at a plurality of levels and in rows around the circumference of the shaft furnace (1), for heating the charge material and for smelting the copper are disposed at predefined levels of the shaft furnace (1) between the charging opening (4) and the tap opening (5), characterized in that the steel jacket (2) of the shaft furnace (1) is cylindrical at least in an upper region (7) above the topmost burner (6) or the topmost row of burners (6), and the refractory lining (3) comprises a sequence of cylindrical portions (8a-e) in the upper region (7) from top to bottom, said portions being mutually concentric and the diameter of said portions increasing from portion (8) to portion (8). The invention also relates to a method for smelting charge material to form molten copper in a shaft furnace of this type.
The invention relates to a method for processing a metal workpiece. The method comprises the following known steps: spraying a powder-type auxiliary material (2) onto the workpiece (20) using a spraying device (10), wherein, when exiting the spraying device, the auxiliary material is at least partially melted, before it lands on the surface of the workpiece. According to the method of the invention, in order to be able to easily apply an easily removeable scale-inhibiting coating to the workpiece, the workpiece (20) has a temperature that is lower than the melting point of the powder-type auxiliary material, preferably below 50°C, before it is sprayed with the auxiliary material (2), the powder-type auxiliary material has an oxidation-inhibiting effect, and a homogeneous coating of the auxiliary material is formed on the workpiece by melting the auxiliary material during spraying.
C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
88.
METHOD AND DEVICE FOR PROVIDING INSERTS FOR SUPPORT AND/OR WORK ROLLS OF A ROLL STAND
The invention relates to a method for providing inserts (1) for support rolls and/or work rolls of a roll stand, which are required during roll changes. In order to simplify the logistics of changing the rolls of a roll stand and in particular the support rolls and to reduce the changeover times, the method according to the invention comprises the steps: a) assembling at least one insert (1), preferably at least two or three inserts (1), into an insert pack (2) at a first location remote from the roll stand; b) placing the insert pack (2) at the first location into a carrier element (3); c) transporting the carrier element (3) together with the insert pack (2) from the first location to the location near the roll stand; d) removing the insert pack (2) from the carrier element (3) at the location near the roll stand; e) using the inserts (1) when changing rolls. The invention also relates to a device for this purpose.
The present application relates to a copper contact jaw (1) for an electrical smelting unit, which can be attached to an electrode carrying arm (2) of the smelting unit and via which an electrode of the smelting unit can be electrically conductively connected to the electrode carrying arm (2), having a main body (4) with a rear face (5) and an opposite front face (6), a first end face (9) and a second, axially opposite end face (10), and at least one first and one second side face (11a, 12a); two contact faces (7, 8) arranged on the front face (6) of the main body (4), which contact faces are mirror-symmetrical and extend axially along the main body (4); and a cooling channel system having a coolant inlet opening (13) and a coolant outlet opening (14) and a plurality of cooling channels (15) which extend axially and radially through the main body (4).
H05B 7/10 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes
90.
TWO-ROLLER CASTING DEVICE FOR CREATING A CAST METAL STRIP, AND METHOD FOR COOLING AND/OR CLEANING AN OUTER SURFACE OF A CASTING ROLLER OF A TWO-ROLLER CASTING DEVICE
122) oriented axially parallel to one another and at the same height and to rotate in opposite rotational directions (D) to one another, and a shell-like cover element (13) which is adjacent to at least one casting roller (12) and has a shape which is adapted to complement the curve of the casting roller (12). A gap (15) is formed between the cover element (13) and the casting roller (12), wherein a cooling and/or cleaning medium (K) can be discharged into the gap (15) by means of a metering device (17).
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
91.
CASTING-ROLLING INSTALLATION, AND METHOD FOR PRODUCING A STEEL STRIP
The invention relates to a casting-rolling installation (10) and to a corresponding method for producing a steel strip (1) which runs through the casting-rolling installation (10) in a conveying direction (F). Such a casting-rolling installation (10) comprises a casting device (12) which is in the form of a two-roller casting device (12) and accordingly has two casting rollers (13) which are each arranged mounted rotatably about axes aligned axially parallel to one another and at the same height, a cast steel strip (1) being produced by means of the two-roller casting device (12). A roll stand (14) for rolling the cast steel strip (1) is mounted downstream of the casting device (12) in the conveying direction (F) of the steel strip. The roll stand (14) here is arranged relative to the casting device (12) in such a manner that a roll nip inlet (15) of the rolling mechanism – as seen in the vertical direction – is located with respect to the position of the axes of the casting rollers (13) at the same height as or above same.
B22D 11/06 - Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
B22D 11/16 - Controlling or regulating processes or operations
The present application relates to a reflector element (1) for use in a heat-insulating hood (10) for thermally insulating metallic rolling stock in a rolling mill, comprising a base layer (5), which is formed from a first metallic material and which has a thermal conductivity of at least 100 W/mK; a reflection layer (6), which is formed from a second metallic material and which forms a reflector surface (7) of the reflector element (1); and at least one diffusion-inhibiting layer (8), which is arranged between the base layer (5) and the reflection layer (6) and which is formed from a third metallic material.
B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
The invention relates to an annealing device (1), in particular an annealing furnace, for the oxidation-free heat treatment of a hot-rolled steel strip (3), which is provided for the production of an electric strip and/or stainless steel strip, a treatment line (2) for the continuous pickling and oxidation-free annealing of a hot-rolled steel strip (3), and a method for the continuous pickling and oxidation-free annealing of a hot-rolled steel strip (3).
F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
F27B 9/04 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
F27B 9/06 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27B 9/28 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
F27B 9/30 - Details, accessories or equipment specially adapted for furnaces of these types
F27D 9/00 - Cooling of furnaces or of charges therein
F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
The invention relates to a device (2) for guiding chocks (12) which are designed to support two working rolls (10) of a roll stand (1), said working rolls forming a rolling gap, and to a roll stand. The device (2) has: two bending blocks (20) for receiving a respective chock (12); at least one guide (15) on which the bending blocks (20) are guided such that the bending blocks (20) can be moved relative to one another along the guide (15); and multiple bending actuators (30) which are designed to move the bending blocks (20) along the guide (15) relative to one another.
The invention relates to a roll casting installation (1000) having: at least a first casting machine (110) for casting a first metal melt to form a first casting strand having a first casting thickness; and a first separating device for optionally splitting the first casting strand into individual first slabs. A tunnel kiln (170) is located downstream of the first separating device (140) and has kiln rollers which comprise mutually spaced supporting rings on which the first casting strand or the first slabs rest(s) while being transported through the tunnel kiln. The aim of the invention is to be able to cast even surface-critical grades of steel by means of a process line of this kind without risking undesired rolled-in scale or imprints of the supporting rings being impressed in the lower faces of the surface-critical first slabs when passing through the tunnel kiln. This aim is achieved in that a bypass is provided in the roll casting installation (1000) according to the invention, which bypass has an integrated flame-descaling device (260) and is intended for bypassing the tunnel kiln (170) in the first process line.
B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
B21B 13/22 - Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting
The invention relates to a roll stand (10) for rolling a rolling stock, comprising: a roll stand frame (3) on the drive side and a roll stand frame (3) on the operating side, wherein, in the two roll stand frames, the necks of working rollers (1) are rotatably mounted in inserts; adjusting devices (4) in the two roll stand frames for applying rolling forces via the inserts onto the working rollers of the roll stand (10); at least one sensor (6) which is associated with one of the two roll stand frames (3) for generating a measurement signal; and an evaluation device (8) for evaluating the measurement signal with regard to the rolling forces exerted on the working roller by the adjusting devices (4). In order to protect the sensor better from dirt and corrosion and, as a result, to achieve more precise measurement signals and control results, the roll stand according to the invention is designed such that at least one hole (7) is made in at least one support post of at least one of the roll stand frames (3), the sensor (6) is introduced into the hole (7) and is designed to detect a deformation of the hole (7) when rolling force is exerted and to generate the measurement signal such that it represents the detected deformation of the hole (7).
B21B 38/08 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force
The invention relates to a method for producing a metal product in a plurality of successive process steps, each with an assigned set of manipulated variables, the method having the following steps: measuring an actual property of the metal product at a measurement site, at the beginning, during or at the end of one of the process steps, except for the last process step in which the metal product is finished; comparing the actual property of the metal product at the measurement site with a predefined target property of the metal product; determining an adjustment deviation for the property; and adjusting the actual property to the target property by suitably varying at least one of the manipulated variables. In order to make it possible to set the desired target property of the metal strip at the output of the last process stage within narrower tolerances than has been possible in the prior art, according to the invention the target property for the metal product at the output of the last of the successive process steps is predefined, and the at least one manipulated variable for adjusting the actual property of the metal product is selected from a set of manipulated variables which is assigned to at least one process step which comes after the process step to which the measurement site is assigned.
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
B21B 1/00 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations
B21B 37/00 - Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
B21B 38/00 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
C21D 11/00 - Process control or regulation for heat treatments
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C23G 1/00 - Cleaning or pickling metallic material with solutions or molten salts
C23G 3/00 - Apparatus for cleaning or pickling metallic material
G05B 13/00 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
B22D 11/16 - Controlling or regulating processes or operations
C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
The invention relates to an arch segment (160) in the arch region of a strand-guiding device (150) for guiding and deflecting a cast strand (200) made of metal into the horizontal after leaving a mold (140). The arch segment has an upper frame (162) and a lower frame (164), on each of which a plurality of strand-guiding rollers (170) are rotatably mounted. The upper frame and the lower frame are connected together such that the respective strand-guiding rollers thereof are arranged opposite one another in a mutually spaced manner and define an arch-shaped guide channel for guiding the cast strand (200). In order to reduce deformations of the cast strand in the arch region (150-I) of the strand guide, at least one of the strand-guiding rollers (170) on the upper frame and/or the lower frame is designed in the form of an axle roller.
The invention relates to a scraping device (100) for applying a coolant onto the surface of a working roll in a roll stand (200) and for partitioning the material being rolled by means of the working roll from the coolant flowing from the working roll. The scraping device (100) has a scraper tip (110) and a main part (120) as a support for the scraper tip. The main part is equipped with a cooling channel (120) which is designed to supply a coolant to a slot nozzle which is formed on the scraper tip (110). In order to prevent the geometry of the outlet opening of the slot nozzle from changing in an undesired manner when the scraping device (100) is engaged against the surface of a working roll (210), the upper and lower flow guide surfaces of the slot nozzle (140) are designed to run preferably parallel to each other in the depth direction (y) at least over a specified wear length.
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
B21B 37/32 - Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
100.
METALLURGICAL PRODUCTION PLANT AND METHOD FOR THE OPERATION THEREOF
The invention relates to a metallurgical production system (100) for generating and/or processing steel. For this purpose, the production plant has an electrolysis unit (110) for generating hydrogen from supplied water and current, a hydrogen store (120) for storing at least the hydrogen generated by the electrolysis unit (110), and a pipeline network (180) on the plant site for directing the hydrogen from the hydrogen store (120) to hydrogen consumers (130). In order to also be able to provide electrical energy in an environmentally friendly manner for different consumers within the metallurgical production plant, the metallurgical production plant according to the invention is provided with a fuel cell (132) for generating current from the hydrogen stored in the hydrogen store (120).
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