JPS5582729A - Heat treating method for steel material - Google Patents

Heat treating method for steel material

Info

Publication number
JPS5582729A
JPS5582729A JP15469478A JP15469478A JPS5582729A JP S5582729 A JPS5582729 A JP S5582729A JP 15469478 A JP15469478 A JP 15469478A JP 15469478 A JP15469478 A JP 15469478A JP S5582729 A JPS5582729 A JP S5582729A
Authority
JP
Japan
Prior art keywords
steel
heat treatment
steel material
gas
treating method
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
JP15469478A
Other languages
Japanese (ja)
Other versions
JPS5653615B2 (en
Inventor
Hiroshi Nishi
Takaya Nagaie
Yoshifumi Oda
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP15469478A priority Critical patent/JPS5582729A/en
Publication of JPS5582729A publication Critical patent/JPS5582729A/en
Publication of JPS5653615B2 publication Critical patent/JPS5653615B2/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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere

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 Treatment Of Strip Materials And Filament Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

PURPOSE:To manufacture steel material of constant quality at a high efficiency, by, in heat treatment of a variety of steel material in a continuous furnace or batch furnace, using N2 gas of a specific CO content and of adjusted dew point as an atmosphere gas. CONSTITUTION:In heat treatment of steel material, N2 gas contg. 3-15% by vol. CO, and having a dew point adjusted to -5--50 deg.C is used. Use of the gas having the above-described composition causes no decarburization or carburization on the surface during heat treatment, allowing heat treatment such as annealing, hardening, tempering, normalizing to take place at an excellent productivity. The heat- treating method is applied also to carbon steel, low alloy steel and high alloy steel such as bearing steel, tool steel etc.
JP15469478A 1978-12-14 1978-12-14 Heat treating method for steel material Granted JPS5582729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15469478A JPS5582729A (en) 1978-12-14 1978-12-14 Heat treating method for steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15469478A JPS5582729A (en) 1978-12-14 1978-12-14 Heat treating method for steel material

Publications (2)

Publication Number Publication Date
JPS5582729A true JPS5582729A (en) 1980-06-21
JPS5653615B2 JPS5653615B2 (en) 1981-12-19

Family

ID=15589891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15469478A Granted JPS5582729A (en) 1978-12-14 1978-12-14 Heat treating method for steel material

Country Status (1)

Country Link
JP (1) JPS5582729A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125810A (en) * 1988-11-02 1990-05-14 Daido Steel Co Ltd Steel heat treatment method
JPH02153017A (en) * 1988-12-02 1990-06-12 Daido Steel Co Ltd Furnace atmosphere gas composition control method
CN107400769A (en) * 2017-07-25 2017-11-28 合肥欧仕嘉机电设备有限公司 A kind of bearing steel heat treatment process
JP2019189942A (en) * 2018-04-24 2019-10-31 エア・ウォーター株式会社 Annealing method of metal
CN113088662A (en) * 2021-04-30 2021-07-09 江西红睿马钢管股份有限公司 DX gas carbon potential control method in bearing steel pipe anaerobic spheroidizing annealing process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WIRE JOURNAL=1977 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125810A (en) * 1988-11-02 1990-05-14 Daido Steel Co Ltd Steel heat treatment method
JPH02153017A (en) * 1988-12-02 1990-06-12 Daido Steel Co Ltd Furnace atmosphere gas composition control method
CN107400769A (en) * 2017-07-25 2017-11-28 合肥欧仕嘉机电设备有限公司 A kind of bearing steel heat treatment process
JP2019189942A (en) * 2018-04-24 2019-10-31 エア・ウォーター株式会社 Annealing method of metal
CN113088662A (en) * 2021-04-30 2021-07-09 江西红睿马钢管股份有限公司 DX gas carbon potential control method in bearing steel pipe anaerobic spheroidizing annealing process

Also Published As

Publication number Publication date
JPS5653615B2 (en) 1981-12-19

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