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:
Mar. 14, 2017
Filed:
Feb. 06, 2012
Yoshikazu Yoshida, Tokyo, JP;
Hideki Takahashi, Tokyo, JP;
Rinya Kojo, Tokyo, JP;
Ryo Matsuoka, Tokyo, JP;
Yuzuru Kataoka, Tokyo, JP;
Tomoo Horita, Tokyo, JP;
Yoshikazu Yoshida, Tokyo, JP;
Hideki Takahashi, Tokyo, JP;
Rinya Kojo, Tokyo, JP;
Ryo Matsuoka, Tokyo, JP;
Yuzuru Kataoka, Tokyo, JP;
Tomoo Horita, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A rail heat treatment device includes a cooling header, an oscillation mechanism, and a control system including: a storage unit that stores therein at least information required for a oscillation control; and a control unit that obtains a permissible range of required cooling time for a rail that satisfies a permissible range of hardness of the rail based on a correlation expression representing a correlation between the cooling time for the rail with the cooling header and the hardness of the rail after cooling, controls a stroke and a speed of relative reciprocation of the rail and the cooling header based on the permissible range of the required cooling time, and causes the oscillation mechanism to perform the relative reciprocation of the rail and the cooling header by the stroke and at the speed.