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:
Oct. 19, 2021
Filed:
Mar. 31, 2017
Nippon Steel Corporation, Tokyo, JP;
Yohichi Haraguchi, Tokyo, JP;
Yoshihiro Serizawa, Tokyo, JP;
Tatsuro Honda, Tokyo, JP;
Hisayoshi Tachibana, Tokyo, JP;
Susumu Nakagawa, Tokyo, JP;
Koki Tanaka, Tokyo, JP;
Shota Ishitsuka, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A cooling device cooling an undersurface of a hot rolled steel sheet that is being transported on transport rolls after finish rolling of a hot rolling step includes: width divided cooling zones that are a plurality of cooling zones into which a whole cooling zone is divided in a sheet width direction; divided cooling sections that are a plurality of cooling zones into which each of the width divided cooling zones is divided in the rolling direction; a water nozzle spraying cooling water over each of undersurfaces of the divided cooling sections; a switching mechanism switching the cooling water between impinging and not impinging on the divided cooling sections; a width direction thermometer measuring a temperature distribution in the sheet width direction; and a controller controlling operation of the switching mechanism.