JPS5591946A - Coil spring annealing method - Google Patents

Coil spring annealing method

Info

Publication number
JPS5591946A
JPS5591946A JP16565878A JP16565878A JPS5591946A JP S5591946 A JPS5591946 A JP S5591946A JP 16565878 A JP16565878 A JP 16565878A JP 16565878 A JP16565878 A JP 16565878A JP S5591946 A JPS5591946 A JP S5591946A
Authority
JP
Japan
Prior art keywords
rods
coil spring
spring
wound
annealing
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
JP16565878A
Other languages
Japanese (ja)
Other versions
JPS5848012B2 (en
Inventor
Jiro Morita
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP16565878A priority Critical patent/JPS5848012B2/en
Publication of JPS5591946A publication Critical patent/JPS5591946A/en
Publication of JPS5848012B2 publication Critical patent/JPS5848012B2/en
Expired 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 Articles (AREA)

Abstract

PURPOSE:To enhance the operation rate of annealing work and the thermal efficiency of annealing by electrifying a wound coil spring to anneal it during conveyance. CONSTITUTION:Two endless wire rods 2 are stretched between a pair of pulleys 1 and enabled to be electrified with electrifying unit 3. A wire rod supplied between the carrier side heads of rods 2 is wound by a predetermined diameter. When the wound rod reaches a preset length, it is cut with coil spring producing machine B, and coil spring S is supplied through shoot 5. Spring S is conveyed toward the carrier side tail while being supported between two rods 2. Spring S is electrified through rods 2, whereby it is heated by internal resistance heat and annealed. By this method spring S is automatically annealed during conveyance, preventing a conventional lowering in operation rate and a heat loss due to a temp. rise of an annealing furnace, etc.
JP16565878A 1978-12-29 1978-12-29 Coil spring annealing method Expired JPS5848012B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16565878A JPS5848012B2 (en) 1978-12-29 1978-12-29 Coil spring annealing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16565878A JPS5848012B2 (en) 1978-12-29 1978-12-29 Coil spring annealing method

Publications (2)

Publication Number Publication Date
JPS5591946A true JPS5591946A (en) 1980-07-11
JPS5848012B2 JPS5848012B2 (en) 1983-10-26

Family

ID=15816539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16565878A Expired JPS5848012B2 (en) 1978-12-29 1978-12-29 Coil spring annealing method

Country Status (1)

Country Link
JP (1) JPS5848012B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116728A (en) * 1981-01-14 1982-07-20 High Frequency Heattreat Co Ltd Stress relief heat treatment and suspension device for cold formed coil spring material
WO2012014672A1 (en) * 2010-07-26 2012-02-02 中央発條株式会社 Method for manufacturing spring and device for heating by passage of electric current

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116728A (en) * 1981-01-14 1982-07-20 High Frequency Heattreat Co Ltd Stress relief heat treatment and suspension device for cold formed coil spring material
WO2012014672A1 (en) * 2010-07-26 2012-02-02 中央発條株式会社 Method for manufacturing spring and device for heating by passage of electric current
US9623475B2 (en) 2010-07-26 2017-04-18 Chuo Hatsujo Kabushiki Kaisha Method for producing spring

Also Published As

Publication number Publication date
JPS5848012B2 (en) 1983-10-26

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