JPS5792128A - Production of tool steel - Google Patents

Production of tool steel

Info

Publication number
JPS5792128A
JPS5792128A JP16740280A JP16740280A JPS5792128A JP S5792128 A JPS5792128 A JP S5792128A JP 16740280 A JP16740280 A JP 16740280A JP 16740280 A JP16740280 A JP 16740280A JP S5792128 A JPS5792128 A JP S5792128A
Authority
JP
Japan
Prior art keywords
temp
annealing
residual austenite
heating
spheriodizing
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
JP16740280A
Other languages
Japanese (ja)
Other versions
JPS646247B2 (en
Inventor
Yoshiyuki Niiyama
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP16740280A priority Critical patent/JPS5792128A/en
Publication of JPS5792128A publication Critical patent/JPS5792128A/en
Publication of JPS646247B2 publication Critical patent/JPS646247B2/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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation

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 Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To obtain uniformly dispersed annealing structure by performing heating to above hot working or austenitizing temp. then decomposing treatment of residual austenite followed by spheriodizing annealing. CONSTITUTION:After heating to hot working or austenitizing temp., cooling down to the temp. at which martensite transformation takes place is performed, thence decomposition treatment of residual austenite such as heating to above the temp. at which residual austenite decomposes or cooling down to below ordinary temp. is carried out, following to which spheriodizing annealing is performed. Thereby, the deposition of chainlike carbide is prevented and the uniformly fine carbide structure is formed.
JP16740280A 1980-11-29 1980-11-29 Production of tool steel Granted JPS5792128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16740280A JPS5792128A (en) 1980-11-29 1980-11-29 Production of tool steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16740280A JPS5792128A (en) 1980-11-29 1980-11-29 Production of tool steel

Publications (2)

Publication Number Publication Date
JPS5792128A true JPS5792128A (en) 1982-06-08
JPS646247B2 JPS646247B2 (en) 1989-02-02

Family

ID=15849031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16740280A Granted JPS5792128A (en) 1980-11-29 1980-11-29 Production of tool steel

Country Status (1)

Country Link
JP (1) JPS5792128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111560499A (en) * 2020-05-18 2020-08-21 南京钢铁股份有限公司 Annealing process of steel for high-strength-grade mining chain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111560499A (en) * 2020-05-18 2020-08-21 南京钢铁股份有限公司 Annealing process of steel for high-strength-grade mining chain
CN111560499B (en) * 2020-05-18 2022-03-22 南京钢铁股份有限公司 Annealing process of steel for high-strength-grade mining chain

Also Published As

Publication number Publication date
JPS646247B2 (en) 1989-02-02

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