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DE50107847D1 - LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS - Google Patents

LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS

Info

Publication number
DE50107847D1
DE50107847D1 DE50107847T DE50107847T DE50107847D1 DE 50107847 D1 DE50107847 D1 DE 50107847D1 DE 50107847 T DE50107847 T DE 50107847T DE 50107847 T DE50107847 T DE 50107847T DE 50107847 D1 DE50107847 D1 DE 50107847D1
Authority
DE
Germany
Prior art keywords
screw springs
manufacturing
springs
legged steel
legged
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.)
Expired - Lifetime
Application number
DE50107847T
Other languages
German (de)
Inventor
Otto Krickau
Andreas Bernhardt
Nils Lippmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE50107847T priority Critical patent/DE50107847D1/en
Application granted granted Critical
Publication of DE50107847D1 publication Critical patent/DE50107847D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • 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
    • C23C8/36—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 using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Springs (AREA)
DE50107847T 2000-07-04 2001-06-29 LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS Expired - Lifetime DE50107847D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50107847T DE50107847D1 (en) 2000-07-04 2001-06-29 LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2000132313 DE10032313A1 (en) 2000-07-04 2000-07-04 Alloy steel coil springs and method of making such coil springs
PCT/DE2001/002402 WO2002002840A1 (en) 2000-07-04 2001-06-29 Coil spring from an alloy steel and method for producing such coil springs
DE50107847T DE50107847D1 (en) 2000-07-04 2001-06-29 LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS

Publications (1)

Publication Number Publication Date
DE50107847D1 true DE50107847D1 (en) 2005-12-01

Family

ID=7647632

Family Applications (2)

Application Number Title Priority Date Filing Date
DE2000132313 Ceased DE10032313A1 (en) 2000-07-04 2000-07-04 Alloy steel coil springs and method of making such coil springs
DE50107847T Expired - Lifetime DE50107847D1 (en) 2000-07-04 2001-06-29 LEGGED STEEL SCREW SPRINGS AND METHOD FOR MANUFACTURING SUCH SCREW SPRINGS

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE2000132313 Ceased DE10032313A1 (en) 2000-07-04 2000-07-04 Alloy steel coil springs and method of making such coil springs

Country Status (4)

Country Link
EP (1) EP1301648B1 (en)
JP (1) JP2004502032A (en)
DE (2) DE10032313A1 (en)
WO (1) WO2002002840A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869346B1 (en) * 2007-06-12 2008-11-19 한국생산기술연구원 Plasma Nitriding Method by Low Current High Density and Its Apparatus
DE102009011118A1 (en) 2008-11-21 2010-05-27 Muhr Und Bender Kg Tempered spring steel, spring element and method for producing a spring element
JP5558165B2 (en) * 2010-03-30 2014-07-23 中央発條株式会社 Spiral spring and its manufacturing method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5276234A (en) * 1975-12-22 1977-06-27 Diesel Kiki Co Method of fabricating spring of high fatigue limit by ionitriding
JPS55115965A (en) * 1979-02-27 1980-09-06 Takao Takase Glow discharge nitriding method of special purpose steel by extra low nitrogen mixed gas
JPS5925024B2 (en) * 1980-06-26 1984-06-13 株式会社神戸製鋼所 steel for suspension springs
JPS60152668A (en) * 1984-01-23 1985-08-10 Nippon Piston Ring Co Ltd Production of compression piston ring
FR2604188B1 (en) * 1986-09-18 1992-11-27 Framatome Sa STAINLESS STEEL TUBULAR ELEMENT HAVING IMPROVED WEAR RESISTANCE
DE3900473A1 (en) * 1989-01-10 1990-07-26 Theodor Schroeder Federnfabrik Helical compression spring
JP2991759B2 (en) * 1990-09-28 1999-12-20 日本電子工業株式会社 Manufacturing method of nitriding steel
US5267287A (en) * 1992-09-25 1993-11-30 Combustion Engineering, Inc. Holddown leaf spring assembly having a lubricant coating
JP2783145B2 (en) * 1993-12-28 1998-08-06 株式会社神戸製鋼所 Steel for nitrided spring and nitrided spring with excellent fatigue strength
KR970005418B1 (en) * 1994-07-20 1997-04-16 주식회사 제4기한국 Method of plasma ion-nitriding treatment
JP3173756B2 (en) * 1994-07-28 2001-06-04 株式会社東郷製作所 Manufacturing method of coil spring
JP3139666B2 (en) * 1994-09-14 2001-03-05 住友電気工業株式会社 Spring excellent in nitriding characteristics and method of manufacturing the same
JP3998733B2 (en) * 1995-10-20 2007-10-31 日本発条株式会社 High spring resistance and fatigue resistance coil spring
FR2764219B1 (en) * 1997-06-04 1999-07-16 Ascometal Sa METHOD FOR MANUFACTURING A STEEL SPRING, SPRING OBTAINED AND STEEL FOR MANUFACTURING SUCH A SPRING
US6224686B1 (en) * 1998-02-27 2001-05-01 Chuo Hatsujo Kabushiki Kaisha High-strength valve spring and it's manufacturing method

Also Published As

Publication number Publication date
DE10032313A1 (en) 2002-01-17
JP2004502032A (en) 2004-01-22
EP1301648A1 (en) 2003-04-16
EP1301648B1 (en) 2005-10-26
WO2002002840A1 (en) 2002-01-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition