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:
Sep. 19, 2023
Filed:
Mar. 27, 2020
Jfe Steel Corporation, Tokyo, JP;
Shuhei Irie, Tokyo, JP;
Satoshi Ueoka, Tokyo, JP;
Hirokazu Sugihara, Tokyo, JP;
Hiroyuki Fukuda, Tokyo, JP;
Norichika Aramaki, Tokyo, JP;
Akitoshi Matsui, Tokyo, JP;
Kenichi Osuka, Tokyo, JP;
Sho Kokufu, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A method for continuously casting steel capable of reducing center segregation that occurs in a slab. In a section in a continuous casting machine in a slab withdrawal direction, a section from a start point at which the average value of solid phase ratios along a thickness direction at a widthwise center of a slab is within a range of 0.4 or more and 0.8 or less to an end point at which the average value of solid phase ratios along the thickness direction at the widthwise center of the slab is greater than the average value of solid phase ratios at the start point and is 1.0 or less is set as a first section. The slab is cooled by water in the first section at a water flow rate per surface area of the slab within a range of 50 L/(m×min) or more and 2,000 L/(m×min) or less.