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公开(公告)号：US20240263263A1
公开(公告)日：2024-08-08
申请号：US18566707
申请日：2022-05-20
发明人： Erich Opitz , Lukas Pichler , Axel Rimnac , Alois Seilinger , Albrecht Sieber , Klaus Weinzierl
CPC分类号： C21D8/0263 , B21B37/76 , C21D8/0226 , B21B2261/20
摘要： A method for cooling a rolled product in a cooling section which is located upstream of a finishing train of a hot rolling mill. The cooling section includes a cooling device which can deliver a coolant flow of a coolant onto a rolled product surface of the rolled product. In the method, a coolant flow is delivered, by means of each cooling device and in each cooling section pass, onto the rolled product surface, which flow is set to a set value that is assigned to the relevant cooling device for the cooling section pass. The set values for a cooling section pass are determined in a simulation of the cooling section pass so that surface temperatures, determined in the simulation, of the rolled product surface upon leaving active regions of the cooling device do not exceed a minimum value for a surface temperature of the rolled product surface.
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公开(公告)号：US20240075511A1
公开(公告)日：2024-03-07
申请号：US17766686
申请日：2020-10-14
CPC分类号： B21B45/0233 , B21B1/26 , B21B45/0218 , B21B2001/225
摘要： The invention relates to a cooling device with coolant jets having a hollow cross section. A treatment line for a flat, elongate, hot rolling stock made of metal has a finishing train for rolling the rolling stock and a cooling device. The cooling device can, as required, be located upstream or downstream of the finishing train or within the finishing train. The cooling device has a first cooling bar, which extends fully over the rolling stock, seen in the width direction of the rolling stock. The first cooling bar has, facing the rolling stock, several coolant outlets by means of which water is applied to the rolling stock. The coolant outlets are arranged in the first coolant bar in a positionally fixed manner extending in at least one width direction (y) of the rolling stock and each have, within the respective row, a predefined distance from one another.
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公开(公告)号：US20240075509A1
公开(公告)日：2024-03-07
申请号：US18261938
申请日：2022-01-13
发明人： Andreas HOLLAUS , Matthias KURZ
IPC分类号： B21B37/58
CPC分类号： B21B37/58
摘要： A position controller that controls an actuator that sets a roll gap of a roll stand by determining an actuating variable (q) for the actuator as a function of a resulting position target value (s*) and a position actual value(s) of the actuator. The (s*) is determined with a resulting base target value (s1*), which is determined as the sum of an initial base target value (s0*) and an additional target value (δs1*), which is determined by a determination element with an inlet-end actual tension (ZE) and an inlet-end reference tension (ZER) and/or with an outlet-end actual tension (ZA) and an outlet-end reference tension (ZAR). Instead of (ZE) and (ZA), the corresponding target tensions (ZE*, ZA*) of corresponding tension control operations can also be used. However, in both cases, (ZER) and (ZAR) are variables that differ from (ZE*) and (ZA*).
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公开(公告)号：US20230330728A1
公开(公告)日：2023-10-19
申请号：US18012185
申请日：2021-06-30
发明人： Josef HOFBAUER
CPC分类号： B21B15/0085 , B23K26/24 , B21B39/02 , B23K2101/16
摘要： A processing plant for metal strips (1) has a welding machine, a strip store downstream of the welding machine and a processing device downstream of the strip store. The metal strips are welded to form a continuous strip with the welding machine, which is stored in the strip store and output from there to the processing device. The metal strips are connected via diagonally extending weld seams. To join the weld seams, first the strip head (2) and the strip foot (3) of the metal strips are twisted and the two strips are connected by forming the weld seam. The weld seam extends only transversely to the transport direction (x) during the welding process. Finally, the strip head and the strip foot of the metal strips are twisted back again. As a result, the weld seam now extends diagonally to the transport direction (x).
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公开(公告)号：US11779976B2
公开(公告)日：2023-10-10
申请号：US17274212
申请日：2019-07-30
发明人： Klaus Weinzierl
CPC分类号： B21B37/76 , B21B45/0218
摘要： A cooling section (2) is situated in a rolling line or upstream or downstream of the rolling line. A hot metal rolled material (1) is cooled in the cooling section. A control device (13) of the cooling section (2) dynamically determines setpoint actuation states (S1*) for control valves (10) situated in supply lines (8) and actuates the control valves (10) accordingly. Main flows (F1) of a liquid, water-based coolant (7) are supplied to application devices (6) of the cooling section (2) via the supply lines (8) in accordance with the actuation. The supply lines (8) conduct the main flows (F1) to buffer regions (12) of the application devices (6). Proceeding from there, cooling flows (F) of the coolant (7) are applied to the hot rolled material (1). The control device (13) also dynamically determines setpoint actuation states (S2*) for active devices (16) and actuates the active devices (16) accordingly. The active devices (16) conduct additional flows (F2) of a further medium (18) to the buffer regions (12) via further supply lines (17) in accordance with the actuation. The cooling flows (F) depend on both the main flows (F1) and the additional flows (F2). The additional flows (F2) are positive or negative depending on the actuation state (S2*) of the active devices (16). The control device (13) adjusts the additional flows (F2) by correspondingly actuating the active devices (16) such that the cooling flows (F) are as identical as possible to setpoint flows (F*) of the coolant (7) at all times.
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公开(公告)号：US11565290B2
公开(公告)日：2023-01-31
申请号：US17598335
申请日：2020-02-27
发明人： Matthias Kurz , Klaus Loehe
摘要： Slabs pass through a furnace in a conveying direction, are heated to rolling temperature, and are rolled in at least one roller stand. Determining device receives information showing the regions occupied by the slabs relative to one another when passing through the furnace in at least one direction orthogonal to the conveying direction, and determines, for at least one rolling pass of the respective slab, an adjustment of the roller stand performing this rolling pass without prior determination of a respective temperature distribution of a respective slab or without utilization of a determined temperature of a respective slab. The determining device takes into account the region occupied by the respective preceding and/or following slab, seen in the conveying direction, relative to the respective slab, and supplies the respective determined adjustment of the roller stand to a control device, which controls the roller stand when the respective slab is being rolled.
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公开(公告)号：US11493891B2
公开(公告)日：2022-11-08
申请号：US16605868
申请日：2018-04-10
发明人： Matthias Kurz , Marco Miele , Alexander Thekale
摘要： A model (8) is based on mathematical-physical equations. The model models the production of a particular output product (1) from at least one input product (2) supplied in each case to an installation in the raw materials industry on the basis of operation (B) of the installation. During production of the output products (1), the installation is controlled by a control device (5) in such a manner that particular actual operation (B) of the installation corresponds as far as possible to particular desired operation (B*) of the installation. The desired operation (B*) is determined by the control device (5) using the model (8) of the installation. The model (8) is parameterized according to a number of first model parameters (P1) for the purpose of modelling the installation. After a multiplicity of output products (1) have been produced in each case, actual sizes (A) of the output products (1) in the particular multiplicity are compared with expected sizes (A′) of the output products (1) in the particular multiplicity. On the basis of the comparison, the first model parameters (P1) are newly determined and the model (8) in the control device (5) is newly parameterized according to the new values of the first model parameters (P1). After this time, the desired operation (B*) is determined by the control device (5) using the newly parameterized model (8) of the installation in the raw materials industry. The expected sizes (A′) are determined by means of the model (8), wherein the determination of the expected sizes (A′) is based on the actual operation (B) of the installation.
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公开(公告)号：US20220332456A1
公开(公告)日：2022-10-20
申请号：US17760619
申请日：2020-09-09
发明人： Martin KÖNIGSHOFER , Ralf SMUKALSKI
IPC分类号： B65B69/00
摘要： Coil has been produced by coiling of a strip. The coil has two end faces and a lateral surface, and also a coil eye having an eye axis. The binding bands have a binding band width. Initially, while a first subregion of the lateral surface of the coil, as seen in the direction of the eye axis, is resting on a first rest, those binding bands which, as seen in the direction of the eye axis, surround the coil completely outside the first subregion are removed. Then, while a second subregion of the coil, as seen in the direction of the eye axis, is resting on the first rest or a second rest, those binding bands which were not removed are removed. The first and the second subregion, as seen in the direction of the eye axis, are spaced apart from one another at least by the binding band width.
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公开(公告)号：US20220250128A1
公开(公告)日：2022-08-11
申请号：US17598343
申请日：2020-03-05
发明人： Martin KERSCHENSTEINER , Daniel KOTZIAN , Matthias KURZ , Klaus LOEHE , Andreas MAIERHOFER , Daniel OTT , Mirko TUNK
摘要： A control device (3b) for a roll stand (1). During rolling of a metal strip (2) in the roll stand (1), the device receives measurement data (M) for a lateral position (y) of the metal strip (2) on the inlet side and/or outlet side of the roll stand (1). Taking into account parameters (P) of the stand regulator (3a) on the basis of the deviation in the lateral position (y) from a target position (y*), a stand regulator (3a) of the control device (3b) determines a tilt value (δs) for the roll stand (1) and controls the roll stand (1) accordingly. The control device (3b) determines at least one variable (V1, V2, Q1, Q2) from which it is derived, for both strip edges (7, 8) of the metal strip (2), whether the metal strip (2) forms an undulation (9) in the region of the particular strip edge (7, 8). As soon as the metal strip (2) forms an undulation (9) in the region of one of the strip edges (7, 8), the control device (3b) varies at least one of the parameters (P) of the stand regulator (3a), such that the stand regulator (3a) determines the tilt value (δs), starting from the variation in the at least one parameter (P), and taking into account the changed parameter (P).
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公开(公告)号：US20220126337A1
公开(公告)日：2022-04-28
申请号：US17310246
申请日：2020-01-13
发明人： Johannes DAGNER
摘要： The present invention relates to a method and an apparatus for changing the effective contour of a running surface (8) of a working roller (3, 4) during the hot rolling of rolling stock in a roll stand (2) to form a rolled strip (1). The intention is to be able to change the contour of the running surface (8) during the hot rolling by means of the invention. This object is achieved according to the invention by the axial displacement of the working rollers (3, 4) in opposite directions by a displacement distance s, wherein s is greater or less than Δ r tan ( α ) and Δr indicates the wear of the running surface (8) in the radial direction (R) and α indicates the pitch angle of the conical portion (7) of the respective working roller (3, 4).
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