JPS57116728A - Stress relief heat treatment and suspension device for cold formed coil spring material - Google Patents

Stress relief heat treatment and suspension device for cold formed coil spring material

Info

Publication number
JPS57116728A
JPS57116728A JP323281A JP323281A JPS57116728A JP S57116728 A JPS57116728 A JP S57116728A JP 323281 A JP323281 A JP 323281A JP 323281 A JP323281 A JP 323281A JP S57116728 A JPS57116728 A JP S57116728A
Authority
JP
Japan
Prior art keywords
coils
heat treatment
produced
materials
parts
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
JP323281A
Other languages
Japanese (ja)
Other versions
JPS6327408B2 (en
Inventor
Eiichi Soga
Hitoshi Watanabe
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.)
KOUSHIYUUHA NETSUREN KK
Neturen Co Ltd
Koshuha Netsuren KK
Original Assignee
KOUSHIYUUHA NETSUREN KK
Neturen Co Ltd
Koshuha Netsuren KK
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 KOUSHIYUUHA NETSUREN KK, Neturen Co Ltd, Koshuha Netsuren KK filed Critical KOUSHIYUUHA NETSUREN KK
Priority to JP323281A priority Critical patent/JPS57116728A/en
Publication of JPS57116728A publication Critical patent/JPS57116728A/en
Publication of JPS6327408B2 publication Critical patent/JPS6327408B2/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
    • 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

Abstract

PURPOSE:To relieve residual stresses without generating disturbance in pitches and distortions in an axial direction by supporting coil materials freely slidably, by each turn, in plural point contacts along the axial direction on the surfaces of their bores, putting the parts other than those in the point contact into a non-contact state and subjecting these to a heat treatment. CONSTITUTION:Two pieces of stanchions 2 are fixed upright by leaving a constant spacing L on a pallet 1, and branched support parts 21 having a U- or Y- shape are formed to the upper ends of the stanchions 2. Coil materials C are inserted onto bar materials 3, are placed in a horizontal state on the parts 21 and are so provided that each of the coils C makes point contact with the materials 3 at one point. Thence, when the coils are subjected to a heat treatment in this state, the elongation produced when the residual stresses of the coils C are released by heating are dispersed by each one turn and is thereby decreased, thus the coils slide and elongate gradually spirally in accordance with the turning direction of the wire rods and since the coils per se elongate progressively along the axial line, no deformations in the axial line direction are produced and no deformations in the outside circumferential direction are produced either.
JP323281A 1981-01-14 1981-01-14 Stress relief heat treatment and suspension device for cold formed coil spring material Granted JPS57116728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP323281A JPS57116728A (en) 1981-01-14 1981-01-14 Stress relief heat treatment and suspension device for cold formed coil spring material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP323281A JPS57116728A (en) 1981-01-14 1981-01-14 Stress relief heat treatment and suspension device for cold formed coil spring material

Publications (2)

Publication Number Publication Date
JPS57116728A true JPS57116728A (en) 1982-07-20
JPS6327408B2 JPS6327408B2 (en) 1988-06-02

Family

ID=11551696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP323281A Granted JPS57116728A (en) 1981-01-14 1981-01-14 Stress relief heat treatment and suspension device for cold formed coil spring material

Country Status (1)

Country Link
JP (1) JPS57116728A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487476A2 (en) * 1990-11-19 1992-05-27 Aktiebolaget SKF Castings with cast-in reinforcement
EP1659189A1 (en) * 2003-08-19 2006-05-24 Neturen Co., Ltd. Heat treating device and heat treating method
CN101956777A (en) * 2009-07-14 2011-01-26 上海中洲特种合金材料有限公司 Heat treating method of nickel-base alloy cylinder spiral torsion spring

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105965935B (en) * 2016-07-20 2017-12-29 苏州切浦汽车零部件有限公司 Spring forming machine
CN106086375A (en) * 2016-08-17 2016-11-09 安徽鼎恒再制造产业技术研究院有限公司 A kind of axial workpiece bracing frame
JP6887017B2 (en) * 2017-06-23 2021-06-16 富士フイルム株式会社 Curable composition, semi-curable product, cured product, optical member, lens and compound

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591946A (en) * 1978-12-29 1980-07-11 Jiro Morita Coil spring annealing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591946A (en) * 1978-12-29 1980-07-11 Jiro Morita Coil spring annealing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487476A2 (en) * 1990-11-19 1992-05-27 Aktiebolaget SKF Castings with cast-in reinforcement
EP1659189A1 (en) * 2003-08-19 2006-05-24 Neturen Co., Ltd. Heat treating device and heat treating method
EP1659189A4 (en) * 2003-08-19 2009-11-11 Neturen Co Ltd Heat treating device and heat treating method
CN101956777A (en) * 2009-07-14 2011-01-26 上海中洲特种合金材料有限公司 Heat treating method of nickel-base alloy cylinder spiral torsion spring

Also Published As

Publication number Publication date
JPS6327408B2 (en) 1988-06-02

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