JPS55128542A - Cooling method for induction heating and quenching of large diameter steel tubing - Google Patents

Cooling method for induction heating and quenching of large diameter steel tubing

Info

Publication number
JPS55128542A
JPS55128542A JP3480379A JP3480379A JPS55128542A JP S55128542 A JPS55128542 A JP S55128542A JP 3480379 A JP3480379 A JP 3480379A JP 3480379 A JP3480379 A JP 3480379A JP S55128542 A JPS55128542 A JP S55128542A
Authority
JP
Japan
Prior art keywords
steel tubing
outer surfaces
water
large diameter
diameter steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3480379A
Other languages
Japanese (ja)
Inventor
Isao Takada
Hiroshi Otsubo
Kenichi Amano
Teruo Otani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP3480379A priority Critical patent/JPS55128542A/en
Publication of JPS55128542A publication Critical patent/JPS55128542A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/085—Cooling or quenching

Abstract

PURPOSE:To enhance cooling effect with a small amount of water used by method wherein extremely high density water jet stream collides with the inner and outer surfaces of steel tubing and part of water stream is flowed along the inner and outer surfaces of the tubing. CONSTITUTION:Onto the inner and outer surfaces of large diameter steel tubing after heated at high temperature, water jet stream is injected at one time with extremely high water density of 5X10<4>l/min/m<2> or more from nozzle end of special shape. More than 10% of water jet stream is flowed along the inner and outer surfaces of the steel tubing. The method provides a high cooling speed without reducing strength and toughness and results in reduced amount of water used.
JP3480379A 1979-03-23 1979-03-23 Cooling method for induction heating and quenching of large diameter steel tubing Pending JPS55128542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3480379A JPS55128542A (en) 1979-03-23 1979-03-23 Cooling method for induction heating and quenching of large diameter steel tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3480379A JPS55128542A (en) 1979-03-23 1979-03-23 Cooling method for induction heating and quenching of large diameter steel tubing

Publications (1)

Publication Number Publication Date
JPS55128542A true JPS55128542A (en) 1980-10-04

Family

ID=12424381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3480379A Pending JPS55128542A (en) 1979-03-23 1979-03-23 Cooling method for induction heating and quenching of large diameter steel tubing

Country Status (1)

Country Link
JP (1) JPS55128542A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05171294A (en) * 1991-12-25 1993-07-09 Kawasaki Steel Corp Method for cooling welded part of electric resistance welded tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05171294A (en) * 1991-12-25 1993-07-09 Kawasaki Steel Corp Method for cooling welded part of electric resistance welded tube

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