JPS5431011A - Heat treatment method for steel material - Google Patents

Heat treatment method for steel material

Info

Publication number
JPS5431011A
JPS5431011A JP9679177A JP9679177A JPS5431011A JP S5431011 A JPS5431011 A JP S5431011A JP 9679177 A JP9679177 A JP 9679177A JP 9679177 A JP9679177 A JP 9679177A JP S5431011 A JPS5431011 A JP S5431011A
Authority
JP
Japan
Prior art keywords
steel material
heat treatment
treatment method
spraying
cooling
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
JP9679177A
Other languages
Japanese (ja)
Inventor
Daizo Yamazaki
Teishiro Watanabe
Isao Hirata
Keiichi Yamamoto
Hyoma Kitajima
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9679177A priority Critical patent/JPS5431011A/en
Publication of JPS5431011A publication Critical patent/JPS5431011A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching

Abstract

PURPOSE:To obtain a large hardening depth and, at the same time, to reduce the occurrence of quenching crack and quenchin gstrain, by spraying the jet of cooling liquid at the initial stage of cooling, spraying the compressed gas keepin gpace with the lowering of temperature of the steel material and regulating the amount of the cooling agent while detecting the surface temperature of the steel material at the hardening of the steel material.
JP9679177A 1977-08-12 1977-08-12 Heat treatment method for steel material Pending JPS5431011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9679177A JPS5431011A (en) 1977-08-12 1977-08-12 Heat treatment method for steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9679177A JPS5431011A (en) 1977-08-12 1977-08-12 Heat treatment method for steel material

Publications (1)

Publication Number Publication Date
JPS5431011A true JPS5431011A (en) 1979-03-07

Family

ID=14174451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9679177A Pending JPS5431011A (en) 1977-08-12 1977-08-12 Heat treatment method for steel material

Country Status (1)

Country Link
JP (1) JPS5431011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008123275A1 (en) * 2007-03-30 2008-10-16 Sumitomo Metal Industries, Ltd. Process for manufacturing martensite stainless steel pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008123275A1 (en) * 2007-03-30 2008-10-16 Sumitomo Metal Industries, Ltd. Process for manufacturing martensite stainless steel pipe
EP2135963A1 (en) * 2007-03-30 2009-12-23 Sumitomo Metal Industries, Ltd. Process for manufacturing martensite stainless steel pipe
US8168014B2 (en) 2007-03-30 2012-05-01 Sumitomo Metal Industries, Ltd. Method for manufacturing martensitic stainless steel pipe or tube
EP2135963A4 (en) * 2007-03-30 2015-04-29 Nippon Steel & Sumitomo Metal Corp Process for manufacturing martensite stainless steel pipe

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