COOLING DEVICE AND PRODUCTION METHOD FOR RAIL

Title:

COOLING DEVICE AND PRODUCTION METHOD FOR RAIL

Document Type and Number:

WIPO Patent Application WO/2018/168969

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a cooling device and a production method for a rail such that a rail having high hardness and high toughness can be produced at a low cost. The present invention provides a cooling device (2) for forced cooling of a rail (1) in an austenitic temperature range by spraying a cooling medium on a head section (11) and a foot section (12) of the rail (1), said cooling device being provided with: a first cooling unit (21) having multiple first cooling headers (211a through 211c) for spraying the cooling medium in a gaseous state on a head top surface and head side surfaces of the head section (11) and first drive units (213a through 213c) for changing the spraying distances of the cooling medium sprayed from the first cooling headers (211a through 211c) by moving at least one of the first cooling headers (211a through 211c) among the multiple first cooling headers (211a through 211c); and a second cooling unit (22) having a second cooling header (221) for spraying the cooling medium in a gaseous state on the foot section (12).

More Like This:

WO/2023/080135	WELDED RAIL
JPH08295938	METHOD FOR COOLING HIGH TEMPERATURE RAIL AND DEVICE THEREFOR
JP2004204248	COIL DEVICE FOR INDUCTION-HEATING

Inventors:

OKUSHIRO KENJI (JP)
KIJIMA HIDEO (JP)
ISHIKAWA HIROSHI (JP)

Application Number:

PCT/JP2018/010086

Publication Date:

September 20, 2018

Filing Date:

March 14, 2018

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C21D9/04; C21D1/00; C22C38/00; C22C38/18; C22C38/60

Foreign References:

JPH0533057A	1993-02-09
JPS6213528A	1987-01-22
JP2016049568A	2016-04-11
JP2016518518A	2016-06-23
JP2015523467A	2015-08-13
JPH09227942A	1997-09-02
JP2014189880A	2014-10-06

Other References: