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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.:

US 10563278 B1

PDFFull Text
Date of Patent:
Feb. 18, 2020

Filed:

Nov. 05, 2018

Rail manufacturing method and manufacturing equipment

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Kenji Okushiro, Tokyo, JP;

Hiroyuki Fukuda, Tokyo, JP;

Hideo Kijima, Tokyo, JP;

Moriyasu Yamaguchi, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Scott R Kastler

Int. Cl.
CPC ...
C21D 9/04 (2006.01); B21B 1/085 (2006.01); B21B 45/02 (2006.01); C21D 1/18 (2006.01); C22C 38/00 (2006.01); C21D 1/62 (2006.01); C21D 1/667 (2006.01); C22C 38/20 (2006.01); C22C 38/26 (2006.01); C22C 38/24 (2006.01); C22C 38/22 (2006.01); C22C 38/40 (2006.01); C22C 38/18 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C21D 1/56 (2006.01); C21D 6/00 (2006.01); C22C 38/50 (2006.01);
U.S. Cl.
CPC ...
C21D 9/04 (2013.01); B21B 1/085 (2013.01); B21B 45/02 (2013.01); C21D 1/18 (2013.01); C21D 1/56 (2013.01); C21D 1/62 (2013.01); C21D 1/667 (2013.01); C21D 6/00 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/18 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/40 (2013.01); B21B 2045/0221 (2013.01); C21D 2211/009 (2013.01); C22C 38/50 (2013.01);
Abstract

Rail-manufacturing equipment that performs forced cooling on at least a head of a hot rail hot-rolled at or heated to the austenite region temperature or higher. The rail-manufacturing equipment includes a head-cooling header configured to jet a cooling medium toward the head of the rail, a head thermometer configured to measure surface temperature of the head of the rail, and a controller configured to adjust jet of the cooling medium from the head-cooling header. The controller includes a temperature-monitoring unit configured to monitor measurement results by the head thermometer during the forced cooling, and a cooling-rate controller.

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