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:
Feb. 28, 2006
Filed:
May. 19, 2004
Hidetoshi Nishi, Hitachi, JP;
Hirokazu Nakamae, Hitachi, JP;
Kenichi Yasuda, Hitachinaka, JP;
Kenji Horii, Hitachi, JP;
Youichi Matsui, Hitachinaka, JP;
Ichirou Maeno, Hitachinaka, JP;
Hideo Kobayashi, Hitachi, JP;
Haruyuki Yabe, Kitaibaraki, JP;
Hidetoshi Nishi, Hitachi, JP;
Hirokazu Nakamae, Hitachi, JP;
Kenichi Yasuda, Hitachinaka, JP;
Kenji Horii, Hitachi, JP;
Youichi Matsui, Hitachinaka, JP;
Ichirou Maeno, Hitachinaka, JP;
Hideo Kobayashi, Hitachi, JP;
Haruyuki Yabe, Kitaibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A strip rolling mill includes a pair of upper and lower work rolls for rolling a strip, intermediate rolls for supporting each of the paired work rolls, and back-up rolls for supporting each of the intermediate rolls. Each of the work rolls is provided with a tapered portion at one end thereof so that the tapered portions of the work rolls are on opposite sides of roll bodies thereof with respect to roll axis directions. When the material with a constant width is being rolled, axial positions of the work rolls are set at appropriate positions and axial positions of the intermediate rolls are changed to control a thickness distribution in a width direction of the material being rolled. This arrangement significantly improves an edge drop and at the same time minimizes edge drop variations.