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1. 发明授权

US11318511B2 Width setting on a finishing train 有权
公开(公告)号：US11318511B2
公开(公告)日：2022-05-03
申请号：US16783242
申请日：2020-02-06
申请人： Primetals Technologies Germany GmbH
发明人： Daniel Kotzian , Wilfried Tautz
IPC分类号： B21B37/22 , B21B37/50 , B21B38/00 , B21B38/04 , B21B37/48
摘要： Before the rolling of a metal strip on a finishing train, the actual width and actual temperature of portions of the metal strip are respectively detected. The portions of the metal strip are tracked while they run through the finishing train. The rolling stands are respectively assigned width controlling devices which determine the setpoint width and the actual width after the rolling in the assigned rolling stand, and a downstream additional setpoint value, by which the desired tension downstream of the assigned rolling stand is corrected in order to bring the actual width closer to the setpoint width. The downstream additional setpoint value is both taken into account in the determination of the actual width and fed to a tension controller, which sets an actual tension, in the metal strip downstream of the assigned rolling stand, in accordance with the corrected setpoint tension. Determining the downstream additional setpoint value by the difference between the setpoint width and the actual width of a portion of the metal strip.

2. 发明授权

US10596608B2 Width setting on a finishing train 有权
公开(公告)号：US10596608B2
公开(公告)日：2020-03-24
申请号：US15511693
申请日：2015-08-26
申请人： Primetals Technologies Germany GmbH
发明人： Daniel Kotzian , Wilfried Tautz
IPC分类号： B21B37/22 , B21B38/00 , B21B38/04 , B21B37/48 , B21B37/50
摘要： Before the rolling of a metal strip on a finishing train, the actual width and actual temperature of portions of the metal strip are respectively detected. The portions of the metal strip are tracked while they run through the finishing train. The rolling stands are respectively assigned width controlling devices which determine the setpoint width and the actual width after the rolling in the assigned rolling stand, and a downstream additional setpoint value, by which the desired tension downstream of the assigned rolling stand is corrected in order to bring the actual width closer to the setpoint width. The downstream additional setpoint value is both taken into account in the determination of the actual width and fed to a tension controller, which sets an actual tension, in the metal strip downstream of the assigned rolling stand, in accordance with the corrected setpoint tension. Determining the downstream additional setpoint value by the difference between the setpoint width and the actual width of a portion of the metal strip.

3. 发明授权

US10175659B2 Control device for a hydraulic cylinder unit having optimized linearization 有权
公开(公告)号：US10175659B2
公开(公告)日：2019-01-08
申请号：US15304983
申请日：2015-03-25
申请人： Primetals Technologies Germany GmbH
发明人： Wilfried Tautz
IPC分类号： G05B11/38 , G05D7/06 , G05B11/36
摘要： A controller (15) which receives a target value (g*) related to a piston (3) of the hydraulic cylinder unit (1) and an actual value (g) related to the piston (3) of the hydraulic cylinder unit (1). On the basis of the difference (δg) of the values, the controller determines a provisional manipulated variable (u′). A linearization unit (17) downstream of the controller (15) multiplies the provisional manipulated variable (u′) by a linearization factor (F) and outputs the product to a valve control unit (7) as a final manipulated variable (u) such that the actual value (g) is brought toward the target (g*) at an adjustment speed. On the basis of working pressures (pA, pB) on both sides of the piston (3) and/or working pressures (pP, pT) on the feed side and on the outflow side of the valve control unit (7) and a target piston force (FKL) to be applied by the piston (3), the linearization unit (17) determines target values (pA*, pB*) for the working pressures (pA, pB). The linearization unit determines the linearization factor (F) dynamically as a function of an actual position(s) of the piston (3), the target values (pA*, pB*), and the working pressures (pP, pT) on the feed side and on the outflow side of the valve control unit (7).

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