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1. 发明申请

US20220250128A1 PREVENTING UNDULATIONS WHEN ROLLING METAL STRIPS 有权
公开(公告)号：US20220250128A1
公开(公告)日：2022-08-11
申请号：US17598343
申请日：2020-03-05
申请人： Primetals Technologies Austria GmbH , Primetals Technologies Germany GmbH
发明人： Martin KERSCHENSTEINER , Daniel KOTZIAN , Matthias KURZ , Klaus LOEHE , Andreas MAIERHOFER , Daniel OTT , Mirko TUNK
IPC分类号： B21B37/68 , B21B37/58 , B21B38/02 , B21B37/30
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).

2. 发明申请

US20200246850A1 WIDTH SETTING ON A FINISHING TRAIN 审中-公开
公开(公告)号：US20200246850A1
公开(公告)日：2020-08-06
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 , B21B38/04 , B21B38/00 , 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. 发明申请

US20190160502A1 ROBUST BAND TENSION CONTROL 审中-公开
公开(公告)号：US20190160502A1
公开(公告)日：2019-05-30
申请号：US16091635
申请日：2017-02-27
申请人： Primetals Technologies Germany GmbH
发明人： Ansgar GRÜSS , Daniel KOTZIAN , Andreas MAIERHOFER
IPC分类号： B21B37/52 , B21B37/46 , B21B37/58 , B21B38/06
摘要： A metal band (1) is first rolled in a front (upstream) and then in a rear (downstream) roll stand (2a, 2b) of a multi-stand rolling train. A looper (3) applied on the metal band (1) between the roll stands (2a, 2b) detects a band tension (Z) present in the metal band (1). The band tension (Z) is supplied to a first and a second tension controller (8, 9), which determine an application additional target value (δs*, δF*) and a speed additional target value (δv*). The second tension controller (9) only determines a value less than or greater than 0, as the speed additional target value (δv*), if the band tension (Z) is above or below an upper or lower band tension limit (Z1, Z2). Otherwise, same returns the speed additional target value (δv*) to the value 0. The first tension controller (8) is also supplied with a target tension (Z*) that falls between the band tension limits (Z1, Z2). The first tension controller (8) determines the application additional target value (δs*, δF*) using a determining standard based on the deviation of the band tension (Z) from the target tension (Z*). The determining standard also permits a value different to 0 as the application additional target value (δs*, δF*) if the band tension (Z) falls between the band tension limits (Z1, Z2). The application additional target value (δs*, δF*) acts on the rear roll stand (2b). The speed additional target value (δv*) acts on the front roll stand (2a) with a positive indicator, or on the rear roll stand (2b) with a negative indicator.

4. 发明申请

US20170252786A1 WIDTH SETTING ON A FINISHING TRAIN 审中-公开
公开(公告)号：US20170252786A1
公开(公告)日：2017-09-07
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 , B21B37/50
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.

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