Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11230747
APP PUB NO 20170349965A1
SERIAL NO

15544382

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Importance

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Abstract

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A method quenches a steel pipe and an apparatus quenches a steel pipe by which a steel pipe having excellent and uniform quality can be acquired by applying uniform rapid cooling to the steel pipe in a longitudinal direction as well as in a circumferential direction of the steel pipe using a simple unit. Movements of a heated steel pipe in a direction parallel to and in a direction perpendicular to a pipe axis of the steel pipe are stopped, and cooling water is jetted onto an outer surface of the steel pipe from four or more spray nozzles arranged spirally outside the steel pipe while rotating the steel pipe about the pipe axis.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATIONTOKYO 100-0011

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Hiroyuki Fukuyama, JP 240 4004
Kijima, Hideo Chiba, JP 18 13

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