A smelting unit for steel production with a tap weight of between 60 t and 350 t and a method for operating the same are disclosed. By a top lance that moves during operation of the smelting unit and the coordinated injection of process gases by sidewall injectors and the top lance, the undulations in the surface of the molten bath are reduced. As a result, fewer drops detach from the surface of the molten bath and soiling of the upper receptacle and the exhaust manifold is significantly reduced.
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.
The invention relates to a device (10) and a method for determining, in real time, flat overlays (20) of dielectric materials, in particular organic materials, on strip-shaped or plate-like substrates (11), such as material webs made of metal or plastic, having an optical, ellipsometry-based detection device (1) for detecting and quantifying coatings or overlays (20) on the substrate (11) on the basis of changes in a polarisation state of light reflected at the substrate (11) or the overlay (20); having at least one light source (2), which is directed onto a surface of the substrate (11) at a predetermined angle of incidence α; having at least one image detection device (3) arranged opposite the light source (2) according to an angle of incidence α' for detecting light reflections on the substrate (11); and having an evaluation unit (4) configured and designed for ascertaining and evaluating overlays (20) on the substrate (11), wherein the device (10) is characterised in that the light source (2) comprises an infrared light source (21, 22) and the image detection device (3) comprises an infrared camera (31); in that optical means (5) are provided for limiting the incident light beams from the light source (2), which define a linear or substantially rectangular detection area E of light reflected from the substrate (11) for detecting overlays (20) by means of the infrared camera (31); and in that a polarisation splitting device (7) is provided for at least 2-fold polarisation splitting of the infrared light detected by the infrared camera (31) between the substrate (11) and the infrared camera (31) in such a way that an at least 2-fold image with at least two different polarisations can be generated from the detection area E.
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
G01N 21/84 - Systems specially adapted for particular applications
4.
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.
A method for operating a rolling line with rolling mill stands arranged one behind the other in the rolling direction, for the rolling of rolling material from a previous final rolling dimension to a changed new final rolling dimension is disclosed. According to the method, the rolling is carried out in two temporal phases I and II. In the first temporal phase, the rolling is carried out with a first load redistribution with known wedge-on-wedge rolling. In the first load redistribution the last rolling mill stand maintains its previously set gap unchanged. To shorten a transition time and wedge length during a transition, the rolling mill stands drive pass changes in accordance with a second load redistribution. The second load redistribution, differently than in the first temporal phase I, dynamically drives the last rolling mill stand to the new final rolling dimension.
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
10.
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.
A rolling mill stand (1) for rolling an elongated workpiece, preferably in an cross rolling mill, wherein the rolling mill stand (1) has: two working rolls (20) forming a rolling gap(S), which are designed to roll the workpiece conveyed along a rolling direction (R); at least one guide device (30) with at least one guide (40), which is designed to laterally support the workpiece in the rolling gap(S) by the guide (40) being in contact with the workpiece; wherein the guide device (30) has an angle adjuster (33), which is designed to pivot the guide (40) about one or more, preferably three, spatial axes (x, y, z).
B21B 13/02 - Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
15.
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 an apparatus (10) and a method for determining a lacquer coating thickness of a strip (1) in a continuous process, in particular a process for producing or processing a metal strip or electrical sheet, in which, by means of a lacquering or coating device (20), a transparent or pigmented insulating or lacquer coating is applied to the strip (1), having at least one thickness sensor (2) arranged transversely to, preferably crossing, the conveying direction of the strip (1), the thickness sensor being connected in terms of signalling to a control unit (3) in order to determine the thickness of the lacquer coating on the strip (1), wherein at least one temperature sensor (4) for sensing a temperature of the strip (1) in a region T is provided, in the conveying direction of the strip (1), upstream of and/or at, preferably close to a measuring region D of the thickness sensor (2), and wherein the control unit (3) has a module (5) for temperature compensation of the measurement by the thickness sensor (2), to which the temperature sensor (4) is connected directly or indirectly in terms of signalling in order to correct a thickness value on the basis of the temperature measured by the temperature sensor (4).
An electrohydraulic actuation device is descried with an electric motor and a pump driven by the electric motor for the operation of a hydraulic unit with a positioning cylinder, a piston and a piston rod serving as actuation element and projecting from a housing, wherein the electric motor and the hydraulic unit are each housed in a housing part of the housing, wherein the housing part of the hydraulic unit is separated from and sealed off from the housing part for housing the electric motor, wherein the housing has at least in the area of the hydraulic unit a lateral enlargement in relation to the longitudinal axis X of the device, beyond the circumference of the positioning cylinder and at least along a height of a stroke of the piston.
F15B 15/18 - Combined units comprising both motor and pump
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/28 - Means for indicating the position, e.g. end of stroke
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
19.
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
21.
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
22.
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
23.
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
26.
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
27.
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
A ring-rolling mill (1) includes a machine table (2) for accommodating the rolled material (3) and an axial stand (4) that supports at least one axial roll, preferably two axial rolls (5, 6), for rolling the end faces (7, 8) of the rolled material (3). The ring-rolling mill and a method for operation thereof facilitate rapid product change without elaborate setting-up or without conversion of the rolling mill. For that purpose at least one pressure roll, preferably two pressure rolls (9, 10), for rolling the outer circumference (11) of the rolled material (3) is further arranged on the axial stand (4). The at least one pressure roll (9, 10) is arranged so as to be translationally displaceable relative to the axial stand (4).
A device for machining the edges of casting strands includes one machining tool each that can be brought into contact with a longitudinal edge of the casting strand, and at least one guide element for perpendicularly applying the machining tools to the longitudinal edges. Means are provided for moving the machining tools in parallel to the longitudinal edges of the casting strands, in order to modify the relative speed between the longitudinal edges and the machining tools.
A changing system for a tundish unit of an atomization installation for atomizing metal melts including at least one chamber for accommodating at least one first tundish unit in a working position. The chamber has at least one connection to a charging device and at least one connection to an atomization tower or an atomization shaft, a mechanism for providing at least one second tundish unit in a readiness position within the changing system furthermore including at least one changing station designed as a locked chamber for accommodating and/or introducing and/or removing at least one third tundish unit, and including a displacement system, which is designed so that the introduction and/or removal of at least one tundish unit can take place while one tundish unit is located in the working position.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
31.
Straightening machine and method for straightening
A straightening machine (1) for straightening profiles includes a plurality of straightening rollers (3) arranged opposite each other on both sides of a straightening line and forming a straightening path, at least some of the straightening rollers being arranged on vertically extending straightening shafts (4) such that they can be horizontally and/or axially adjusted with respect to a profile that is moved in the straightening path. At least some of the straightening shafts (4) can be hydraulically horizontally and/or axially adjusted.
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 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 metallurgical furnace comprises a closed vessel enclosing a reducing atmosphere. The vessel comprises at least one electrode providing energy to a burden. The burden comprises a body of molten metal having an upper surface. A carbon injecting lance, in an operational position thereof, extends from an inlet end thereof outside the vessel through a port in the vessel to an outlet end thereof inside the vessel where the lance terminates below the upper surface. The inlet end is connected to a source of carbon. The lance being movable between the operational position and a retracted position wherein the outlet end is outside the vessel. The furnace further comprises a gastight enclosure for the lance when in the retracted position. The enclosure locates on the vessel in gastight manner and over the port and maintains the reducing atmosphere in the vessel.
The disclosure relates to a device (10) and a method for machining at least one surface of a continuous strip material (B) made of non-ferrous metals, which in particular comprises aluminum or aluminum alloys or consists of such materials. A rotating roller brush (12) is used, the roller length of which can be brought into contact with a surface of the strip material (B). Such roller brush (12) has a diameter of 200 mm to 1,000 mm and can rotate at a rotational speed of 100 to 3,600 rpm using an assigned motor drive (14).
B21B 45/06 - 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 of strip material
B21B 3/00 - Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences
Lithium-containing electrochemical energy storage devices a recycled by the following steps: i) The electrochemical energy storage devices are initially comminuted and a fraction comprising an active material is separated from the comminuted material. The fraction includes carbon (C), lithium (Li) and at least one of cobalt (Co), manganese (Mn), nickel (Ni), or iron (Fe). ii) The fraction comprising active material is subsequently fed to a melt-down unit and is melted down in the presence of slag-forming agents so that a molten slag phase and a molten metal phase are formed, iii) Then, the lithium (Li) contained in the molten slag phase and/or molten metal phase is converted into a gas phase by the addition of a fluorinating agent and the carbon (C) is converted into a gas phase by the addition of an oxygen-containing gas, and the lithium and carbon are withdrawn from the process as discharge gas.
A roll-changing device (1) for changing the working and/or intermediate rolls (2) of a rolling mill stand includes a roll-changing carriage (3), with which rolls (2) to be changed out or in can be transported. In order to further develop such a roll-changing device in such a way that it is possible to ensure simplified and safe loading and unloading of a roll-changing carriage, the roll-changing device (1) includes a cartridge (4) that can be detachably arranged in the roll-changing carriage (3). The cartridge (4) is provided with receiving spaces (5) for the rolls (2).
B21B 31/10 - Interchanging rolls, roll mountings, or stand frames by horizontally displacing
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
37.
Method for optical measurement of a thread on an end of a metal pipe or on a sleeve
An arrangement (1) and a method for optical measurement of a thread, in particular for measurement of an internal thread (12) on a sleeve or on a sleeve end of a metal pipe (11), are disclosed. The arrangement (1) comprises at least one optical sensor (5), at least one further optical element that can be adjusted relative to the optical sensor (5) and that is arranged on an optical bench (3) at a determined distance from the sensor along an optical axis (7) and is designed for optically scanning the internal thread (12), as well as means for acquiring and/or storing and/or evaluating the measurement data recorded by the sensor.
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
A metal strip is guided on transportation rollers through a strip treatment installation. The installation includes successive strip movement control devices along a transportation direction. The strip movement control devices detect and adjust the position of the strip transverse to the transportation direction. A method for operating the installation includes: detecting the position of the strip transverse to the transportation direction by sensors of upstream strip movement control devices; identifying properties that influence the position of the strip transverse to the transportation direction of the strip by the sensors; assigning the identified properties of the strip to corresponding points or segments of the strip; and proactively adjusting the position of the strip transverse to the transportation direction at downstream strip movement control devices based on the properties for the corresponding points or segments of the strip identified by the upstream strip movement control devices.
B21B 39/02 - Feeding or supporting workBraking or tensioning arrangements
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
41.
Method for tracing forged parts over the entire production process, in particular from the forging process, via sandblasting and heat treatment, to mechanical processing
Tracing forged parts over their production process includes: capturing process parameters of a forging process; marking a workpiece with a first identifier; storing the captured process parameters and the first identifier in a database; reading the identifier from the workpiece produced in the previous process step; capturing process parameters during subsequent process steps; storing the process parameters of the subsequent process steps in the database for the read identifier, if legibility of the first identifier of the workpiece remains during the subsequent process step; marking the workpiece produced in the subsequent process step with a further identifier, if legibility of the first identifier of the workpiece does not remain during the subsequent process step of the production process; and storing the process parameters of the subsequent process step together with the further identifier and process parameters of the previous process steps and the first identifier in the database.
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]
42.
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.
A cooling attachment can be releasably fastened to a work machine, which has a shaft in which a rod-like tool is guided with a rotary or hammering action and exits the shaft at a free end. The cooling attachment has a housing that encloses the work machine and in particular the shaft thereof and the tool that exits it, the latter only partially. Formed within the housing is a first cooling channel for conducting a coolant from an inlet opening to the tool exiting the free end of the housing shaft. In order to improve the cooling of the tool without cooling the workpiece to be machined, at least one connecting hole is provided, at the free end of the housing shaft, between the first cooling channel and a second cooling channel, in order to divert the coolant from the first cooling channel into the second cooling channel.
A system for the continuous casting and subsequent flat rolling of a steel strip with an austenitic and/or ferritic microstructure and a thickness of less than 1.0 mm comprises a casting device with which a raw steel strip with a thickness in the range of 1.50 to 4.0 mm can be continuously cast. At least one hot rolling stand is coupled to the casting device, with which the raw steel strip can be roughed into the steel strip immediately after the casting process while still in the austenitic and/or ferritic microstructure range. At least one rolling module is arranged immediately after the hot rolling stand coupled to the casting device. The rolling module includes, in this order, a cooling device, a heating device and a hot rolling stand with which the roughed steel strip can be hot-rolled in the austenitic and/or ferritic microstructure range to specifications into the steel strip.
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
B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
B22D 11/124 - Accessories for subsequent treating or working cast stock in situ for cooling
The invention relates to a roll stand (1) for rolling a metallic product and having two work rolls supported in the roll stand by respective work roll chocks (2), wherein axial displacement means (3) is provided with which the work rolls can be displaced in direction of their longitudinal axes, wherein at least one work roll locking means (4) is provided with which the work roll chocks (2) can be locked and unlocked in the roll stand (3), wherein rotation prevention means (6) is provided with which the axial displacement means (3) can be prevented from rotation about longitudinal axes of the work roll, and wherein bending means is provided which includes a bending block (5) and with which a bending torque can be applied to the work rolls. In order to achieve a simpler design of the assembly and improved lubrication possibilities for the component to be lubricated, according to the invention, the rotation prevention means (6) and the axial displacement means (3) are fixedly connected with the bending block (5).
A system (1) and a method for thermomechanically rolling long steel semi-finished products (2) includes: a first rolling unit (5); a first thermomechanical sizing block (8) arranged downwards in the transport direction of the first rolling unit (5); a first cooling device (6) arranged between the first rolling unit (5) and the first thermomechanical sizing block (8); a separating device (14) arranged downstream of the first thermomechanical sizing block (8) in the transport direction; a second cooling device (11) arranged between the first thermomechanical sizing block (8) and the separating device (14); and a coil winding device (13) arranged downstream of the separating device (14) in the transport direction.
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
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
48.
Method for rolling a ring-shaped rolling product having an open cylindrical cross section in a ring rolling machine, and ring rolling machine for carrying out the method
A method for rolling a ring-shaped rolling product (5) having an open cylindrical cross section in a ring rolling machine (1) with inductive heating of the rolling product (5) during the rolling process uses at least one inductor (12) which is held at a predefined coupling distance relative to the rolling product (5) and is tracked or carried along during the shaping process in accordance with the change in dimensions of the rolling product (5). An alternating magnetic field, preferably with a frequency of between 4 and 10 kHz, is coupled directly into the rolling product (5) using the inductor (12).
An oil film bearing includes a journal bush and accommodates a conical roll journal of a backup roll in a rolling mill stand. In order to form a sufficiently large lubricant film gap between the inner side of the journal bush and the outer surface of the roll journal during rolling operation when passing through the angular range with maximum pressure load, and at the same time to prevent the axial forces acting on a fastening ring holding the journal bush on the roll journal in the axial direction from becoming too great, the journal bush to be designed in accordance with the following formula: 0.35<3.6/a (D−B)+kD<0.5, where D refers to the outer running diameter of the journal bush, a refers to the projected cone length of the conical longitudinal portion, k refers to a sliding coefficient, and B refers to the large cone diameter.
The present application relates to a burner for a shaft melting furnace, in particular for a copper shaft melting furnace, comprising a first chamber with an inlet opening, via which an oxygen-containing gas can be supplied to the burner, and an outlet opening, which is arranged at a distal end of a conically tapering sub-portion of the first chamber; a second chamber, which is connected to the conical sub-portion of the first chamber and which has a burner nozzle; a combustion gas line, which opens into the first chamber and via which a combustion gas can be supplied to the burner; and a mixing nozzle, which is arranged in the outlet opening of the first chamber and which has a mixing chamber via which the oxygen-containing gas and the combustion gas can be mixed to form a combustion gas mixture.
F23D 14/10 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
The present application relates to a heat treatment unit, in particular a cooling hood, including a chamber with an inlet opening through which a gaseous cooling medium can be fed to the chamber, and a slot-shaped outlet opening through which the gaseous cooling medium can be discharged faster. The chamber includes a central chamber segment and a first and a second outer chamber segment extending from the central chamber segment, and both outer chamber segments have a cross-section tapering proportionally towards their distal ends, and a device for the heat treatment of hot-rolled long steel products.
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 1/613 - GasesLiquefied or solidified normally gaseous material
C21D 9/04 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for rails
C21D 11/00 - Process control or regulation for heat treatments
52.
System and method for producing steel products in the form of wires and/or bars
A system for the thermomechanical rolling of long semi-finished steel products includes a first rolling unit; a second rolling unit, arranged downstream of the first rolling unit; a first thermomechanical sizing block, arranged downstream of the second rolling unit; a second cooling device, arranged between the second rolling unit and the first thermomechanical sizing block; a cooling-bed, ring-laying and/or coil-winding device, arranged downstream of the first thermomechanical sizing block; a third cooling device, arranged between the first thermomechanical sizing block and the cooling-bed, ring-laying and/or coil-winding device; and a structure-sensor device, which is arranged between the first thermomechanical sizing block and the cooling-bed, ring-laying and/or coil-winding device, and can be used for determining directly in the ongoing process a martensitic structure, in particular a proportion of martensite in percent by area, in the thermomechanically rolled long semi-finished steel product or in the steel product.
B21B 1/16 - 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 wire or material of like small cross-section
C21D 8/06 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
C21D 11/00 - Process control or regulation for heat treatments
53.
Method and system for electrolytically coating a steel strip by means of pulse technology
An electroplating method and a system for electrolytically coating a steel strip, in particular for the automotive sector, with a coating based on zinc and/or a zinc alloy utilizes pulse technology.
The invention relates to a cleaning device (10) for liquids, in particular for oil based liquids, and comprises a housing (12), which contains liquid or through which liquid flows, and at least one cleaning body (16), which is accommodated within the housing (12) and to which the liquid can be supplied, and the material of the cleaning body (16) is designed such that impurities contained in the liquid can be introduced and absorbed therein. The cleaning body (16) is attached in a cover (13) of the housing (12).
A camera module (10) for use with a burner (1) for a shaft melting furnace, in particular a copper shaft melting furnace, is arranged on the burner (1) or on an observation device (9) of the burner (1). The camera module (10) includes a housing (101) having a first opening (104) and a second opening (105), which is arranged axially opposite the first opening (104) and is closed off by an inspection glass (106) a beam splitter (108) arranged in an optical viewing axis (109) extending axially through the housing (101) between the two openings (104, 105); and a camera (112), the lens (113) of which is arranged perpendicularly to the viewing axis (109) and is aligned with the beam splitter (108), and a burner (1).
F23N 5/08 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
F23D 14/24 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
F23D 14/72 - Safety devices, e.g. operative in case of failure of gas supply
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
57.
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
58.
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
59.
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
60.
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
61.
Method and device for optically measuring a thread
A method and a device can be used for optically measuring a thread on an end of a metal pipe by at least one measuring head which is fastened to a manipulator. The measuring head is preferably freely positionable in relation to the metal pipe and has at least one optical measuring path for measuring the thread and at least one position detector. The method includes at least the following method steps: A) providing the metal pipe in a measurement position; B) determining the spatial position of a longitudinal axis of the metal pipe by means of the at least one position detector before and/or while the measuring head is positioned in a measurement position; C) aligning the measuring head parallel to the longitudinal axis of the metal pipe before and/or while the measuring head is positioned in the measurement position; and D) carrying out the optical thread measurement.
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
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
64.
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
A method and a device for guiding and centering a metallic rolling stock in a rolling mill having at least one assembly that is arranged in a rolling line and at least one rolling mill stand for shaping the rolling stock are disclosed. The method includes the use of lateral guide means, which exert a lateral force onto the moving rolling stock at different locations of the rolling line, wherein the method further includes the process of centering the inflow of the rolling stock ahead of a first assembly and/or ahead of a first rolling mill stand of the rolling mill using first lateral guide means and the process of aligning rolling stock downstream transversely to the rolling line using second lateral guide means, wherein the process of centering the inflow includes a funnel-shaped, flat guiding of the rolling stock and a point-shaped guiding of the rolling stock.
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
69.
EXTRUSION RESIDUE SHEARS AND METHOD FOR SHEARING OFF AN EXTRUSION RESIDUE
A precise shearing process can be made possible, with a cost-advantageous embodiment of extrusion residue shears, if the shearing forces and the shearing movement are applied or carried out in as compact and targeted a manner as possible. This can be implemented, in the case of a suitable embodiment of the corresponding extrusion residue shears or of the corresponding method, in each instance, by a suitable embodiment of the drive train that belongs to the shearing movement, by pulling of the related shear blade, by a shearing drive that is separate from positioning and/or by suitable regulation.
B26D 1/08 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
An extrusion press for extrusion of a material to be pressed through a die has a recipient that holds the material to be pressed, and a module that can be displaced relative to the die. The module can be acted on, during extrusion, by an electric motor drive, with the force required for extrusion. The electric motor drive is connected to the module that is displaceable relative to the die, by a bearing unit that has play perpendicular to the force; and/or during extrusion, drives contraction devices for contraction of a region of a tension element that stands under tension, which element counters the force required for extrusion by tension, and/or is a linear drive, which displaces a module that is fixed in place relative to the die during extrusion and the module that is displaceable relative to the die during extrusion, relative to one another, during extrusion.
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
72.
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
75.
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
80.
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
A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.
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
87.
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
90.
Method for automated pass schedule calculation in radial forging
Radial forging of long products made of metal workpieces in a radial forging machine uses at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted to simultaneously carry out the forging operation. An automatic pass schedule calculation includes entering start parameters for the radial forging process into a pass schedule calculation program and defining target parameters for the radial forging process. The pass schedule calculation program calculates a pass schedule or a forging sequence based on these start and target parameters. The pass schedule calculation program determines a temperature variation and the temperature distribution over the cross section of the long product and takes into account the change in shape during radial forging.
B21J 5/06 - Methods for forging, hammering, or pressingSpecial equipment or accessories therefor for performing particular operations
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]
91.
Method for automated pass schedule calculation in radial forging
A method for automatic calculation of a pass schedule in the radial forging of steel tubes in a radial forging machine is disclosed. The forging machine includes at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted for synchronous forging operation over at least a partial length of the workpiece and/or the tube. Starting parameters for the forging process, preferably radial forging process, are entered into a pass plan calculation program and target parameters for the radial forging process are defined. The pass plan calculation program calculates a pass plan or a forging sequence on the basis of these start and target parameters.
A method for automatic pass schedule calculation during forging, in particular radial forging, of stepped shafts made of metal workpieces, in particular steel, in a forging machine, preferably a radial forging machine with at least four forging tools arranged around the circumference of the workpiece, which are set up and adapted for simultaneous forging the workpiece and/or the stepped shaft, includes: entering starting parameters for the forging process, preferably radial forging process, into a pass schedule calculation program; specifying target parameters for the forging process, preferably radial forging process; and calculating, by the pass schedule calculation program, based on these start and target parameters, a pass plan or calculated a forge sequence. A control and/or regulation unit and a forging machine for carrying out the method are disclosed.
A workpiece manipulator (1) for use with a radial forging press includes workpiece tongs (4). The workpiece tongs (4) are fastened to a manipulator frame (2) guided linearly on a manipulator track. The workpiece tongs (4) form a chuck with a fixed clamping axis (5) which extends in the forging axis or parallel to the forging axis. The workpiece can be manipulated with a linear translational movement. The manipulator frame (2) is rail-bound on wheels (12) during the translational movement.
A strand guide device serves to deflect a freshly cast strand, typically made of metal, into the horizontal. During the deflection, the cast strand passes through a cooling chamber 1 inside the strand guide device 2, in which it is sprayed with a coolant 33, with the formation of steam 5. The steam forms at least a steam-air mixture 5′ with sucked-in secondary air, which is sucked out of the cooling chamber by a suction device 20. In order to reduce the pollutant content of the sucked-in and sucked-off steam-air mixture 5′ and its emission into the environment, pollutants, primarily dust, located in the steam-air mixture 5′ are depleted by a separator 6, 6′.
A spray head for the cooling lubrication of a lower die and/or an upper die of a forming machine is disclosed. The spray head is able to be introduced between two working strokes into a working chamber between the lower die and the upper die. The spray head has at least two individually controllable nozzles for the cooling lubrication of different places of a die surface of the lower die and/or the upper die. The spray head also has a thermal imaging camera for recording a thermal image of the lower die and/or the upper die. A forming machine has a cooling device comprising an aforementioned spray head.
B05B 12/12 - 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 responsive to conditions of ambient medium or target, e.g. humidity, temperature
The invention relates to a method for monitoring and controlling free-form forging processes, comprising the steps of: a) calculating the geometry development of a workpiece during free-form forging by using empirical models, b) in parallel with step a), that is to say at the same time or at least partially overlapping times as 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 a free-form forging press which is designed and set up to perform the method.
The disclosure relates to a method for pre-shaping sheet metal (1) in strip- or panel-form having a flat cross-sectional profile into a circular arc-shaped cross-sectional profile, in a pre-shaping section (3) of a plant for producing open-seam pipes. The circular arc-shaped cross-sectional profile is provided to the sheet metal (1) in the pre-shaping section (3) by means of roll profiling in a plurality of successive bending steps in a transport direction. The cross-sectional profile is created by step-by-step bending of individual circular arc portions (8) from an outer edge of the sheet metal (1) toward a center line (7) such that the individual circular arc portions (8) directly adjoin one another or at least partially overlap. The disclosure further relates to a device for carrying out the method.
B21D 5/12 - Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
B21D 5/00 - Bending sheet metal along straight lines, e.g. to form simple curves
B21C 37/08 - Making tubes with welded or soldered seams
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.
