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. 20, 2021
Filed:
Jan. 20, 2017
Jfe Steel Corporation, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
Notching equipment for a steel strip, a method of notching a steel strip, a cold rolling equipment, and a method of cold rolling that make it possible to perform cold rolling on a material without weld breaks, even if the material is a brittle material or a high alloy material such as a silicon steel sheet or a high-tensile steel sheet with high Si and Mn contents. The notching equipment includes a shearing device and a grinding device. The shearing device performs shearing on both edge portions in the steel-strip width direction including the joint to form a first notch. The grinding device grinds end surfaces of both the edge portions of the joint in the steel-strip width direction to form a second notch.