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.
Patent No.:
Date of Patent:
Dec. 20, 2016
Filed:
Dec. 19, 2014
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 1/36 (2006.01); C21D 8/12 (2006.01); B21B 45/00 (2006.01); B21C 47/26 (2006.01); B21B 1/22 (2006.01); H01F 1/147 (2006.01); B21B 13/14 (2006.01);
U.S. Cl.
CPC ...
C21D 8/1233 (2013.01); B21B 1/222 (2013.01); B21B 1/36 (2013.01); B21B 45/004 (2013.01); B21C 47/26 (2013.01); H01F 1/14775 (2013.01); B21B 13/147 (2013.01);
Abstract
In cold-rolling a steel sheet coil, when a tail end portion of a steel sheet coil () is wound around a tension reel () prior to second-pass rolling after the completion of first-pass rolling, the tail end portion is heated to a temperature within a range of not lower than 50° C. nor higher 350° C. with a heater disposed between a rolling stand () and the coil tail end-side tension reel ().