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:
Jun. 01, 2021
Filed:
Jan. 16, 2017
Jfe Steel Corporation, Tokyo, JP;
Satoshi Ueoka, Tokyo, JP;
Yuta Tamura, Tokyo, JP;
Sonomi Shirasaki, Tokyo, JP;
Yukako Katayama, Tokyo, JP;
Takashi Matsumoto, Tokyo, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A production equipment line for a hot-rolled steel strip comprises a rough rolling mill comprising rough rolling mills for hot rolling a material, which is heated to a predetermined temperature to a finish rolling start sheet thickness and a finish rolling mill comprising finish rolling mills for controlled-rolling the material to a final sheet thickness. At least one of the rough rolling mills is a reversible rolling mill. The production equipment line is provided on an upstream side of the reversible rolling mill with one of a slow cooling apparatus for slowly cooling at a water volume density of less than 1000 L/min·mand a rapid cooling apparatus for rapidly cooling after the slow-cooling at a water volume density of not less than 1000 L/min·mand the other of the slow cooling apparatus and rapid cooling apparatus on a downstream side of the reversible rolling mill.