JPS5782428A - Production of spring steel material - Google Patents

Production of spring steel material

Info

Publication number
JPS5782428A
JPS5782428A JP15771580A JP15771580A JPS5782428A JP S5782428 A JPS5782428 A JP S5782428A JP 15771580 A JP15771580 A JP 15771580A JP 15771580 A JP15771580 A JP 15771580A JP S5782428 A JPS5782428 A JP S5782428A
Authority
JP
Japan
Prior art keywords
steel material
spring steel
temp
production
transformation
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
JP15771580A
Other languages
Japanese (ja)
Inventor
Kiyoaki Nishikiori
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 JP15771580A priority Critical patent/JPS5782428A/en
Publication of JPS5782428A publication Critical patent/JPS5782428A/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
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE:To produce a spring steel material of less decarburization on the surface of the steel material by hot-rolling the specific composition spring steel contg. C, Si, Mn then cooling the same quickly within the temp. range down to the end of Ar3 transformation. CONSTITUTION:Spring steel contg. 0.4-1.1% C, 0.2-2.5% Si, 0.3-1.5% Mn by weight % is hot-rolled, after which it is passed through a temp. range down to the end of Ar3 transformation within a short time. To this end, it is cooled at >=30 deg.C/min cooling rates within 5min in the above-mentioned temp. range. In this way, ferrite decarburization on the surface of the steel material is prevented and the degradation in fatigue characteristics of springs is prevented.
JP15771580A 1980-11-11 1980-11-11 Production of spring steel material Pending JPS5782428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15771580A JPS5782428A (en) 1980-11-11 1980-11-11 Production of spring steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15771580A JPS5782428A (en) 1980-11-11 1980-11-11 Production of spring steel material

Publications (1)

Publication Number Publication Date
JPS5782428A true JPS5782428A (en) 1982-05-22

Family

ID=15655788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15771580A Pending JPS5782428A (en) 1980-11-11 1980-11-11 Production of spring steel material

Country Status (1)

Country Link
JP (1) JPS5782428A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57171648A (en) * 1981-04-14 1982-10-22 Kobe Steel Ltd Spring steel
JPS59182949A (en) * 1983-03-31 1984-10-17 Aichi Steel Works Ltd Spring steel with superior hardenability and sag resistance
JPS63274739A (en) * 1987-04-30 1988-11-11 Aichi Steel Works Ltd Steel for spring having excellent hardenability and durability
KR100403963B1 (en) * 1998-12-29 2004-02-11 주식회사 포스코 Manufacturing method of high strength spring wire rod
KR100478088B1 (en) * 2000-12-21 2005-03-23 주식회사 포스코 A method for manufacturing spring steel without ferrite decaburization
CN105127333A (en) * 2015-08-28 2015-12-09 南车戚墅堰机车有限公司 Spring rolling technology for preventing generation of decarburized layer
CN105671428A (en) * 2016-03-04 2016-06-15 北汽福田汽车股份有限公司 Manufacturing method of steel material, hot-rolled flat steel and steel plate spring, manufactured steel plate spring and vehicle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57171648A (en) * 1981-04-14 1982-10-22 Kobe Steel Ltd Spring steel
JPS59182949A (en) * 1983-03-31 1984-10-17 Aichi Steel Works Ltd Spring steel with superior hardenability and sag resistance
JPS63274739A (en) * 1987-04-30 1988-11-11 Aichi Steel Works Ltd Steel for spring having excellent hardenability and durability
KR100403963B1 (en) * 1998-12-29 2004-02-11 주식회사 포스코 Manufacturing method of high strength spring wire rod
KR100478088B1 (en) * 2000-12-21 2005-03-23 주식회사 포스코 A method for manufacturing spring steel without ferrite decaburization
CN105127333A (en) * 2015-08-28 2015-12-09 南车戚墅堰机车有限公司 Spring rolling technology for preventing generation of decarburized layer
CN105671428A (en) * 2016-03-04 2016-06-15 北汽福田汽车股份有限公司 Manufacturing method of steel material, hot-rolled flat steel and steel plate spring, manufactured steel plate spring and vehicle

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