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EP3020841A4 - Coil spring, and method for manufacturing same - Google Patents

Coil spring, and method for manufacturing same Download PDF

Info

Publication number
EP3020841A4
EP3020841A4 EP14823237.4A EP14823237A EP3020841A4 EP 3020841 A4 EP3020841 A4 EP 3020841A4 EP 14823237 A EP14823237 A EP 14823237A EP 3020841 A4 EP3020841 A4 EP 3020841A4
Authority
EP
European Patent Office
Prior art keywords
coil spring
manufacturing same
manufacturing
same
coil
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
EP14823237.4A
Other languages
German (de)
French (fr)
Other versions
EP3020841B1 (en
EP3020841A1 (en
Inventor
Fumio Yamamoto
Kengo TSURUGAI
Nao Yoshihara
Kei Masumoto
Hiroshi Oura
Tetsuo Jinbo
Toshio MAEHATA
Yoshiharu Yamamoto
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.)
NHK Spring Co Ltd
Kobe Steel Ltd
Kobelco Wire Co Ltd
Original Assignee
NHK Spring Co Ltd
Kobe Steel Ltd
Shinko Wire 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 NHK Spring Co Ltd, Kobe Steel Ltd, Shinko Wire Co Ltd filed Critical NHK Spring Co Ltd
Publication of EP3020841A1 publication Critical patent/EP3020841A1/en
Publication of EP3020841A4 publication Critical patent/EP3020841A4/en
Application granted granted Critical
Publication of EP3020841B1 publication Critical patent/EP3020841B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • C21D1/06—Surface hardening
    • 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
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Articles (AREA)
  • Springs (AREA)
  • Heat Treatment Of Steel (AREA)
EP14823237.4A 2013-07-09 2014-07-08 Coil spring, and method for manufacturing same Active EP3020841B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013143514A JP5941439B2 (en) 2013-07-09 2013-07-09 Coil spring and manufacturing method thereof
PCT/JP2014/068123 WO2015005311A1 (en) 2013-07-09 2014-07-08 Coil spring, and method for manufacturing same

Publications (3)

Publication Number Publication Date
EP3020841A1 EP3020841A1 (en) 2016-05-18
EP3020841A4 true EP3020841A4 (en) 2017-03-29
EP3020841B1 EP3020841B1 (en) 2018-08-22

Family

ID=52279991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14823237.4A Active EP3020841B1 (en) 2013-07-09 2014-07-08 Coil spring, and method for manufacturing same

Country Status (6)

Country Link
US (1) US20160160306A1 (en)
EP (1) EP3020841B1 (en)
JP (1) JP5941439B2 (en)
KR (1) KR101789944B1 (en)
CN (1) CN105358726B (en)
WO (1) WO2015005311A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106939372B (en) * 2017-02-14 2018-12-18 江西昌河航空工业有限公司 A kind of manufacturing method of spring
JP7165522B2 (en) * 2018-07-10 2022-11-04 日本発條株式会社 Compression coil spring and its manufacturing method
BR112021013694A2 (en) 2019-02-26 2021-09-21 Nv Bekaert Sa HELICOIDAL COMPRESSION SPRING FOR AN ACTUATOR FOR OPENING AND CLOSING A DOOR OR A REAR COVER OF A CAR
US12091734B2 (en) * 2019-07-01 2024-09-17 Sumitomo Electric Industries, Ltd. Steel wire and spring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643148A1 (en) * 1993-03-12 1995-03-15 Nippon Steel Corporation Steel material for induction-hardened shaft part and shaft part made therefrom
JP2003213372A (en) * 2002-01-25 2003-07-30 Sumitomo Denko Steel Wire Kk Steel wire for spring and spring
EP1619264A1 (en) * 2003-03-28 2006-01-25 Kabushiki Kaisha Kobe Seiko Sho Steel wire for high strength spring excellent in workability and high strength spring
JP2012077367A (en) * 2010-10-06 2012-04-19 Nissan Motor Co Ltd Coil spring and method of manufacturing the same
JP2012144752A (en) * 2011-01-06 2012-08-02 Chuo Spring Co Ltd Spring having excellent corrosion fatigue strength

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0959745A (en) * 1995-08-24 1997-03-04 Daido Steel Co Ltd Steel free from coarsening of crystalline grain
WO2007114491A1 (en) * 2006-03-31 2007-10-11 Nippon Steel Corporation Heat-treatment steel for high-strength spring
JP5476597B2 (en) * 2010-03-04 2014-04-23 株式会社神戸製鋼所 Seamless steel pipe for high-strength hollow springs
JP5064590B1 (en) * 2011-08-11 2012-10-31 日本発條株式会社 Compression coil spring and method of manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643148A1 (en) * 1993-03-12 1995-03-15 Nippon Steel Corporation Steel material for induction-hardened shaft part and shaft part made therefrom
JP2003213372A (en) * 2002-01-25 2003-07-30 Sumitomo Denko Steel Wire Kk Steel wire for spring and spring
EP1619264A1 (en) * 2003-03-28 2006-01-25 Kabushiki Kaisha Kobe Seiko Sho Steel wire for high strength spring excellent in workability and high strength spring
JP2012077367A (en) * 2010-10-06 2012-04-19 Nissan Motor Co Ltd Coil spring and method of manufacturing the same
JP2012144752A (en) * 2011-01-06 2012-08-02 Chuo Spring Co Ltd Spring having excellent corrosion fatigue strength

Also Published As

Publication number Publication date
EP3020841B1 (en) 2018-08-22
JP2015017288A (en) 2015-01-29
JP5941439B2 (en) 2016-06-29
EP3020841A1 (en) 2016-05-18
CN105358726B (en) 2017-06-09
KR20160018720A (en) 2016-02-17
KR101789944B1 (en) 2017-10-25
CN105358726A (en) 2016-02-24
WO2015005311A1 (en) 2015-01-15
US20160160306A1 (en) 2016-06-09

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Owner name: NHK SPRING CO., LTD.

Owner name: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

Owner name: SHINKO WIRE CO., LTD.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OURA, HIROSHI

Inventor name: YOSHIHARA, NAO

Inventor name: YAMAMOTO, FUMIO

Inventor name: YAMAMOTO, YOSHIHARU

Inventor name: JINBO, TETSUO

Inventor name: MASUMOTO, KEI

Inventor name: TSURUGAI, KENGO

Inventor name: MAEHATA, TOSHIO

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