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. 03, 1993
Filed:
Nov. 26, 1991
Kawasaki Steel Corporation, Kobe, JP;
Abstract
A method for controlling edge drop in a cold rolling operation adaptable to tandem cold rolling mill stands by shifting a pair of vertically disposed single-end-tapered work rolls along the widthwise direction of a steel strip. The work rolls have tapered end portions that are disposed on the two widthwise ends of the steel strip. Pairs of work rolls are sequentially mounted on one or more stands and a pair of vertically disposed plain rolls are mounted on at least a final stand, wherein cold rolling is performed so that the thickness offset in the widthwise direction of the steel strip is controlled by independently adjusting the position of the single-end-tapered work rolls according to the following steps: measuring the edge drop at each widthwise end of the steel strip on the outlet side of the final stand; calculating the edge drop offset between the measured amount of the edge drop and a target amount of the edge drop on the final stand outlet side; and individually changing the shift position of the vertically disposed single-end-tapered work rolls in accordance with the edge drop offset at the widthwise ends.