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:
Apr. 14, 2020

Filed:

Dec. 30, 2014
Applicant:

Primetals Technologies Germany Gmbh, Erlangen, DE;

Inventors:

Cristiano Justen, Shrewsbury, MA (US);

Yun Ling, Shrewsbury, MA (US);

Paul Barry Riches, Paxton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B 37/46 (2006.01); B21B 37/52 (2006.01); B21B 1/16 (2006.01);
U.S. Cl.
CPC ...
B21B 37/46 (2013.01); B21B 1/16 (2013.01); B21B 37/52 (2013.01); B21B 2265/06 (2013.01); B21B 2273/16 (2013.01); B21B 2275/06 (2013.01);
Abstract

During rolling of front sections of rolling material in a rear group of roll stands of a rolling mill, rear sections of the rolling material are rolled in the front group of roll stands. A run-out speed with which the rolling material is exiting the front group of roll stands is detected. A run-in speed with which the rolling material is entering the rear group of roll stands is detected. A rolling speed with which the rear group of roll stands is driven is controlled by a controller such that a relation of the run-in speed to the run-out speed equals a predetermined value. The predetermined value is kept constant until a time point at which a tail end of the rolling material reaches a predetermined location upstream of the front group of roll stands, and is changed according to a predetermined function after the time point.


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