The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 03, 2022

Filed:

Feb. 06, 2020
Applicant:

Primetals Technologies Germany Gmbh, Erlangen, DE;

Inventors:

Daniel Kotzian, Forchheim, DE;

Wilfried Tautz, Forchheim, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 37/22 (2006.01); B21B 37/50 (2006.01); B21B 38/00 (2006.01); B21B 38/04 (2006.01); B21B 37/48 (2006.01);
U.S. Cl.
CPC ...
B21B 37/22 (2013.01); B21B 37/50 (2013.01); B21B 38/006 (2013.01); B21B 38/04 (2013.01); B21B 37/48 (2013.01); B21B 2261/06 (2013.01); B21B 2261/20 (2013.01); B21B 2265/06 (2013.01); B21B 2273/20 (2013.01);
Abstract

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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