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. 04, 2020
Filed:
May. 13, 2015
Jfe Steel Corporation, Tokyo, JP;
Hiroto Goto, Tokyo, JP;
Naoki Nakata, Tokyo, JP;
Yukio Kimura, Tokyo, JP;
Masaru Miyake, Tokyo, JP;
Satoshi Ueoka, Tokyo, JP;
Nobuo Nishiura, Tokyo, JP;
Sonomi Shirasaki, Tokyo, JP;
Takaomi Kato, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A method for manufacturing a hot-rolled steel sheet having a large thickness and a large width, a larger sheet width and a lower temperature can stably be cut at a cutting load equal to that of a conventional steel sheet having a usual sheet thickness, a usual sheet width and a usual temperature. In a rough rolling step, the steel sheet is formed so that the shortest length L (mm) from a concave portion bottom to a convex portion top of the fishtail shape satisfies Equation (1) mentioned below, and an intermediate portion between the concave portion bottom and the convex portion top, defined as a desired cutting location, is cut:(2+30)≤≤300  (1),in which X is a maximum deviation (mm) of the cutting location of a crop cutting machine and 0≤X≤90.