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:
Aug. 17, 2010
Filed:
Dec. 10, 2008
Shigeru Ogawa, Futtu, JP;
Kenji Yamada, Futtu, JP;
Toshiyuki Shiraishi, Futtu, JP;
Yasuhiro Higashida, Futtu, JP;
Shigeru Ogawa, Futtu, JP;
Kenji Yamada, Futtu, JP;
Toshiyuki Shiraishi, Futtu, JP;
Yasuhiro Higashida, Futtu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A rolling method and a rolling apparatus for flat rolled metal materials stably produce flat-rolled metal having no or extremely little camber. The rolling mill having work rolls with split backup rolls supporting at least one work roll is provided with at least one pair of pinch rolls. The pinch rolls apply tension to the rolled material. The difference between the rolling direction force acting on the pinch rolls at the right and left sides is calculated. Optionally, the rolling direction force acting on the work rolls at the right and left sides is also calculated. The left-right difference of the roll gap of the work rolls is controlled as a result of the calculated difference.