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公开(公告)号：US11103906B2
公开(公告)日：2021-08-31
申请号：US16463432
申请日：2017-11-28
发明人： Christian Lehner , Erich Opitz , Lukas Pichler , Florian Poeschl , Alois Seilinger , Klaus Weinzierl
摘要： A cooling system (2) for cooling metal rolling stock. A plurality of cooling bars (8) for applying a coolant onto the rolling stock, one dedicated coolant supply line (36) for each cooling bar (8), and a feed system (9) for guiding the coolant to the coolant supply lines (36). Each cooling bar (8) is connected to the feed system (9) via a dedicated coolant supply line (36). A bypass line (48, 52) for discharging a coolant flow from the feed system (9), is connected on the input side to a connection element (51, 53) of the feed system (9).
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公开(公告)号：US11548044B2
公开(公告)日：2023-01-10
申请号：US17440938
申请日：2020-03-13
摘要： Device for cooling flat rolled material with a liquid coolant has at least one cooling bar, which is arranged above the conveying path and to which the liquid coolant is fed. A plurality of outlet tubes have, in a flow direction of the liquid coolant, an initial portion, which proceeds from the inlet opening and extends upward, a middle portion, which adjoins the initial portion, and an end portion, which adjoins the middle portion and extends downward and to the output opening. The middle portion contains a vertex at which the coolant flowing through the outlet tube in question reaches a highest point. The outlet openings are located above the cooling bar. A height distance (h1) of the inlet opening from the vertex is at least twice as large, in particular at least three times as large, as a height distance (h2) of the outlet opening from the vertex.
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公开(公告)号：US11358195B2
公开(公告)日：2022-06-14
申请号：US16607399
申请日：2018-03-14
发明人： Erich Opitz , Lukas Pichler , Alois Seilinger
IPC分类号： B21B45/02 , B21B37/44 , B21B37/74 , B21B27/10 , B22D11/124
摘要： A cooling bar (1) for cooling rolled material (5) being moved in a transport direction (3) and in particular for reducing temperature differences in the temperature of the rolled material (5) transversely to the direction of transport (3). The cooling bar (1) has several full jet nozzles (11) by means of which a coolant beam of a coolant with an approximately constant jet diameter can be distributed to the rolling stock (5) in the direction of distribution (15). A cooling device has at least two cooling bars (1) of that type. The cooling bars extend transversely to a transport direction, one behind the other. Each cooling bar has a respective different pattern of jet nozzles and selection of applicable pattern of jet nozzles in their respective bars selectively cools the rolled material transversely to the transport direction.
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公开(公告)号：US20220088658A1
公开(公告)日：2022-03-24
申请号：US17440938
申请日：2020-03-13
IPC分类号： B21B45/02
摘要： Device for cooling flat rolled material with a liquid coolant has at least one cooling bar, which is arranged above the conveying path and to which the liquid coolant is fed. A plurality of outlet tubes have, in a flow direction of the liquid coolant, an initial portion, which proceeds from the inlet opening and extends upward, a middle portion, which adjoins the initial portion, and an end portion, which adjoins the middle portion and extends downward and to the output opening. The middle portion contains a vertex at which the coolant flowing through the outlet tube in question reaches a highest point. The outlet openings are located above the cooling bar. A height distance (h1) of the inlet opening from the vertex is at least twice as large, in particular at least three times as large, as a height distance (h2) of the outlet opening from the vertex.
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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：US20220184687A1
公开(公告)日：2022-06-16
申请号：US17442943
申请日：2020-01-21
摘要： The invention relates to a method for preventing shape changes in metal coils, in particular for preventing a collapsing of newly wound hot coils. In the method, a metal coil, in particular a newly wound hot coil, is rotated about its longitudinal axis intermittently in a first rotational direction and then rotated back in a second opposing rotational direction, or further rotated in the first rotational direction.
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公开(公告)号：US10737306B2
公开(公告)日：2020-08-11
申请号：US15552869
申请日：2015-12-16
发明人： Josef Maierl , Lukas Pichler , Alois Seilinger
摘要： For a rolled metal strip, in particular a steel strip; a drive roller unit deflects the metal strip from a first transportation direction to a second transportation direction, and the strip is then fed to a coiler. The metal strip is coiled in the coiler to form a coil having a coil diameter. Plastic deformation of an end portion of the metal strip is caused such that the end portion in its uninfluenced state is curved at a curvature radius. The plastic deformation of the end portion (8) is at least partially caused by an asymmetric impingement with a cooling medium (21) on the sides of the end portion (8). The impingement of the end portion (8) with the cooling medium (21) is performed across a length of the end portion (8) that is longer than half the outermost coiling of the coil (6) but smaller than the outermost coiling of the coil (6).
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公开(公告)号：US12049677B1
公开(公告)日：2024-07-30
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：US11786949B2
公开(公告)日：2023-10-17
申请号：US17716000
申请日：2022-04-08
发明人： Erich Opitz , Lukas Pichler , Alois Seilinger
IPC分类号： B21B45/02 , B21B37/74 , B21B37/44 , B21B27/10 , B22D11/124
CPC分类号： B21B45/0218 , B21B45/0233 , B21B37/44 , B21B37/74 , B21B2027/103 , B22D11/1246
摘要： A cooling bar (1) for cooling rolled material (5) being moved in a transport direction (3) and in particular for reducing temperature differences in the temperature of the rolled material (5) transversely to the direction of transport (3). The cooling bar (1) has several full jet nozzles (11) by means of which a coolant beam of a coolant with an approximately constant jet diameter can be distributed to the rolling stock (5) in the direction of distribution (15). A cooling device has at least two cooling bars (1) of that type. The cooling bars extend transversely to a transport direction, one behind the other. Each cooling bar has a respective different pattern of jet nozzles and selection of applicable pattern of jet nozzles in their respective bars selectively cools the rolled material transversely to the transport direction.
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公开(公告)号：US11559830B2
公开(公告)日：2023-01-24
申请号：US17261205
申请日：2019-07-04
IPC分类号： B21B27/10
摘要： A roll stand (1) for rolling flat rolling stock (2) includes an upper working roller (3) and a lower working roller (4) that form a roll gap (5) between each other. The flat rolling stock (2) runs through the roll gap (5) in a transport direction (x) during rolling of the flat rolling stock (2). An upper cooling device (8), cools the upper working roller (3) and is arranged on the outlet side of the roll stand (1). The upper cooling device (8) has an upper spray boom (17), which extends parallel to the upper working roller (3) and has a plurality of upper spray nozzles (22), which spray a liquid coolant (12) onto the upper working roller (3). The upper cooling device (8) also has a lower spray boom (18), which extends parallel to the upper working roller (3) and has a plurality of lower spray nozzles (23), which spray the liquid coolant (12) onto the upper working roller (3). The lower spray boom (18) is arranged between the flat rolling stock (2) and the upper spray boom (17). At least some of the upper spray nozzles (22) are flat jet nozzles, and at least some of the lower spray nozzles (23) are full jet nozzles.
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