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. 30, 2016
Filed:
Feb. 06, 2012
Rinya Kojo, Tokyo, JP;
Hiroyuki Fukuda, Tokyo, JP;
Yuta Tamura, Tokyo, JP;
Yoshikazu Yoshida, Tokyo, JP;
Hideki Takahashi, Tokyo, JP;
Ryo Matsuoka, Tokyo, JP;
Yuzuru Kataoka, Tokyo, JP;
Rinya Kojo, Tokyo, JP;
Hiroyuki Fukuda, Tokyo, JP;
Yuta Tamura, Tokyo, JP;
Yoshikazu Yoshida, Tokyo, JP;
Hideki Takahashi, Tokyo, JP;
Ryo Matsuoka, Tokyo, JP;
Yuzuru Kataoka, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A rail cooling method includes: calculating, based on a relation between temperatures and an amount of warp of the rail cooled to ambient temperature after the forced cooling, the temperatures including a cooling start temperature of the head, a cooling end temperature of the head, a cooling start temperature of the foot and a cooling end temperature of the foot, a target value or a target value range for each of the temperatures so that the amount of warp of the rail at ambient temperature falls within a permissive range; and setting a cooling condition in accordance with the target value or the target value range to perform the forced cooling on the head and the foot.