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:
Jul. 04, 2000
Filed:
Jul. 21, 1999
Yoshihiro Marushita, Tokyo, JP;
Hidetoshi Ikeda, Tokyo, JP;
Kentaro Yano, Tokyo, JP;
Makoto Tsukiyama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a stabilization control of rolling, proportional differential control of snake motion of a to-be-rolled material caused during a rolling process, is achieved on the basis of a lateral deviation of loads which are detected by load sensors disposed on a rolling mill, an instruction value for lateral deviation leveling is calculated from the lateral deviation and given to a draft device, and a roll gap is adjusted on the basis of the instruction value to stabilize the snake motion of the to-be-rolled material. A stabilization low-pass filter having a pole time constant substantially equal to a zero-point time constant of operation frequency characteristics of the rolling mill is employed in the proportional control.