JPS5565318A - Water hardening method - Google Patents

Water hardening method

Info

Publication number
JPS5565318A
JPS5565318A JP13826278A JP13826278A JPS5565318A JP S5565318 A JPS5565318 A JP S5565318A JP 13826278 A JP13826278 A JP 13826278A JP 13826278 A JP13826278 A JP 13826278A JP S5565318 A JPS5565318 A JP S5565318A
Authority
JP
Japan
Prior art keywords
water
steel material
water spray
cooling
cooled
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.)
Granted
Application number
JP13826278A
Other languages
Japanese (ja)
Other versions
JPS6253567B2 (en
Inventor
Daizo Yamazaki
Teishiro Watanabe
Isao Hirata
Keiichi Yamamoto
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 JP13826278A priority Critical patent/JPS5565318A/en
Publication of JPS5565318A publication Critical patent/JPS5565318A/en
Publication of JPS6253567B2 publication Critical patent/JPS6253567B2/ja
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To achieve hardening to a depth equal to, or larger than, that obtained by water-immersion hardening without causing quenching cracks, by placing the steel material to be hardened in a cooling water tank, and by cooling it by water spray and compressed air injection with the Ms point as a border. CONSTITUTION:Water pipes 7 having many water spray nozzles 6 and compressed air pipes 9 having many fog graft nozzles 8 are installed vertically in a cooling tank 4 which is provided with a rotatble bottom plate 5. Hot steel material 2 to be hardened is placed in the cooling tank 4 and is rotated by the bottom plate 5 at 4- 15r.p.m. Simultaneously the steel material 2 is cooled by spraying water through the water spray nozzles. The temp. of the steel material 2 is continuously measured by a thermocouple 10. When the steel material is cooled to a set temp. just above the Ms point, the water spray nozzles are closed, and the steel 2 is cooled by compressed air injection through the fog graft nozzles 8. When the surface temp. exceeds the set temp. just above the Ms point by recuperation, the steel 2 is cooled once again by the water spray. Repetition of these cooling operations causes water quenching with a small difference between the temps. of the center portion and the surface of the steel material.
JP13826278A 1978-11-09 1978-11-09 Water hardening method Granted JPS5565318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13826278A JPS5565318A (en) 1978-11-09 1978-11-09 Water hardening method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13826278A JPS5565318A (en) 1978-11-09 1978-11-09 Water hardening method

Publications (2)

Publication Number Publication Date
JPS5565318A true JPS5565318A (en) 1980-05-16
JPS6253567B2 JPS6253567B2 (en) 1987-11-11

Family

ID=15217815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13826278A Granted JPS5565318A (en) 1978-11-09 1978-11-09 Water hardening method

Country Status (1)

Country Link
JP (1) JPS5565318A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100935113B1 (en) * 2009-06-26 2010-01-06 주식회사 평산 Rapid air cooling apparatus for heat treatment
KR100935112B1 (en) 2008-08-12 2010-01-08 주식회사 평산 Rapid water cooling apparatus for heat treatment
WO2010092659A1 (en) * 2009-02-10 2010-08-19 株式会社Ihi Heat treatment device and heat treatment method
WO2011071153A1 (en) * 2009-12-11 2011-06-16 株式会社Ihi Mist cooling apparatus, heat treatment apparatus, and mist cooling method
WO2011118737A1 (en) * 2010-03-25 2011-09-29 株式会社Ihi Heat treatment method
JP2012007221A (en) * 2010-06-28 2012-01-12 Daido Steel Co Ltd Method for manufacturing steel for plastic molding die
CN104846169A (en) * 2015-06-10 2015-08-19 唐山市裕龙冶金轧辊有限公司 Roller spray quenching equipment
CN105886722A (en) * 2016-06-21 2016-08-24 中冶南方武汉钢铁设计研究院有限公司 Cooling speed accurately controlled quenching device and quenching method
JPWO2017163732A1 (en) * 2016-03-23 2018-08-09 株式会社Ihi Cooling device and heat treatment device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0562955U (en) * 1992-01-31 1993-08-20 日本電産株式会社 Battery housing

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100935112B1 (en) 2008-08-12 2010-01-08 주식회사 평산 Rapid water cooling apparatus for heat treatment
KR101314835B1 (en) * 2009-02-10 2013-10-04 가부시키가이샤 아이에이치아이 Heat treatment apparatus and heat treatment method
WO2010092659A1 (en) * 2009-02-10 2010-08-19 株式会社Ihi Heat treatment device and heat treatment method
US9181600B2 (en) 2009-02-10 2015-11-10 Ihi Corporation Heat treatment apparatus and heat treatment method
JP5545223B2 (en) * 2009-02-10 2014-07-09 株式会社Ｉｈｉ Heat treatment apparatus and heat treatment method
WO2010150935A1 (en) * 2009-06-26 2010-12-29 (주) 평산 Rapid air cooling device for hollow pipe-shaped heat-treated product
KR100935113B1 (en) * 2009-06-26 2010-01-06 주식회사 평산 Rapid air cooling apparatus for heat treatment
JP2011122211A (en) * 2009-12-11 2011-06-23 Ihi Corp Mist cooling apparatus, heat treatment apparatus and mist cooling method
CN103740904A (en) * 2009-12-11 2014-04-23 株式会社Ihi Mist cooling apparatus, heat treatment apparatus, and mist cooling method
CN102639725A (en) * 2009-12-11 2012-08-15 株式会社Ihi Mist cooling apparatus, heat treatment apparatus, and mist cooling method
US9187795B2 (en) 2009-12-11 2015-11-17 Ihi Corporation Mist cooling apparatus, heat treatment apparatus, and mist cooling method
WO2011071153A1 (en) * 2009-12-11 2011-06-16 株式会社Ihi Mist cooling apparatus, heat treatment apparatus, and mist cooling method
US20130008567A1 (en) * 2010-03-25 2013-01-10 Kazuhiko Katsumata Heat treatment method
JP2011202228A (en) * 2010-03-25 2011-10-13 Ihi Corp Heat treatment method
EP2551358A1 (en) * 2010-03-25 2013-01-30 IHI Corporation Heat treatment method
WO2011118737A1 (en) * 2010-03-25 2011-09-29 株式会社Ihi Heat treatment method
EP2551358A4 (en) * 2010-03-25 2015-02-18 Ihi Corp Heat treatment method
CN102822357A (en) * 2010-03-25 2012-12-12 株式会社Ihi Heat treatment method
US9593390B2 (en) 2010-03-25 2017-03-14 Ihi Corporation Heat treatment method
JP2012007221A (en) * 2010-06-28 2012-01-12 Daido Steel Co Ltd Method for manufacturing steel for plastic molding die
CN104846169A (en) * 2015-06-10 2015-08-19 唐山市裕龙冶金轧辊有限公司 Roller spray quenching equipment
JPWO2017163732A1 (en) * 2016-03-23 2018-08-09 株式会社Ihi Cooling device and heat treatment device
CN105886722A (en) * 2016-06-21 2016-08-24 中冶南方武汉钢铁设计研究院有限公司 Cooling speed accurately controlled quenching device and quenching method

Also Published As

Publication number Publication date
JPS6253567B2 (en) 1987-11-11

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