EP1548141B8 - Machine part and method for manufacturing same - Google Patents

Machine part and method for manufacturing same

Info

Publication number
EP1548141B8
EP1548141B8 EP03798399A EP03798399A EP1548141B8 EP 1548141 B8 EP1548141 B8 EP 1548141B8 EP 03798399 A EP03798399 A EP 03798399A EP 03798399 A EP03798399 A EP 03798399A EP 1548141 B8 EP1548141 B8 EP 1548141B8
Authority
EP
European Patent Office
Prior art keywords
layer portion
machine part
nitriding
hardness
vickers hardness
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 - Fee Related
Application number
EP03798399A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1548141A4 (en
EP1548141A1 (en
EP1548141B1 (en
Inventor
Hideki c/o KABUSHIKI KAISHA HONDA MATSUDA
Mitsuo c/o KABUSHIKI KAISHA HONDA TAKASHIMA
Koichiro Inoue
Yutaka Kurebayashi
Yasuhi Matsumura
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1548141A1 publication Critical patent/EP1548141A1/en
Publication of EP1548141A4 publication Critical patent/EP1548141A4/en
Application granted granted Critical
Publication of EP1548141B1 publication Critical patent/EP1548141B1/en
Publication of EP1548141B8 publication Critical patent/EP1548141B8/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding of ferrous surfaces

Abstract

A machine part (1) made of steel has been subjected to a nitriding surface hardening process, and comprises a surface layer portion (2) whose surface hardness is heightened by the nitriding and an inner layer portion (3) which is not affected by the nitriding and has a generally uniform hardness. The Vickers hardness of the inner layer portion (3) is 190-260 HV, and the surface layer portion (2) has a Vickers hardness of 340-460 HV at the reference position which is 50 µm deep from the surface of the part. The surface layer portion (2) has an effective hardened layer depth from the part surface (4) of 0.3 mm or more, at which the Vickers hardness is 270 HV. Thus, the machine part is excellent in the part strength and bend straightening property. A method for manufacturing such a machine part is also disclosed.
EP03798399A 2002-09-25 2003-09-11 Machine part and method for manufacturing same Expired - Fee Related EP1548141B8 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2002279833 2002-09-25
JP2002279833 2002-09-25
JP2003037802 2003-02-17
JP2003037802A JP4230794B2 (en) 2002-09-25 2003-02-17 Machine parts and manufacturing method thereof
PCT/JP2003/011612 WO2004029314A1 (en) 2002-09-25 2003-09-11 Machine part and method for manufacturing same

Publications (4)

Publication Number Publication Date
EP1548141A1 EP1548141A1 (en) 2005-06-29
EP1548141A4 EP1548141A4 (en) 2006-02-08
EP1548141B1 EP1548141B1 (en) 2011-12-21
EP1548141B8 true EP1548141B8 (en) 2012-04-25

Family

ID=32044613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03798399A Expired - Fee Related EP1548141B8 (en) 2002-09-25 2003-09-11 Machine part and method for manufacturing same

Country Status (5)

Country Link
US (1) US20060048860A1 (en)
EP (1) EP1548141B8 (en)
JP (1) JP4230794B2 (en)
CN (1) CN100594249C (en)
WO (1) WO2004029314A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007197812A (en) * 2005-12-28 2007-08-09 Honda Motor Co Ltd Soft-nitrided non-heat-treated steel member
JP4923927B2 (en) * 2006-09-29 2012-04-25 大同特殊鋼株式会社 Crankshaft manufacturing method
JP2008144200A (en) * 2006-12-07 2008-06-26 Isuzu Motors Ltd Method for producing soft-nitrided steel product
JP4821711B2 (en) * 2007-06-15 2011-11-24 住友金属工業株式会社 Steel for soft nitriding
JP5580517B2 (en) * 2008-03-31 2014-08-27 本田技研工業株式会社 Manufacturing method for nitrocarburized crankshaft materials
WO2012163391A1 (en) * 2011-05-27 2012-12-06 Società Bulloneria Europea S.B.E. Spa Process for manufacturing engine starting motor shafts
CN105026591B (en) * 2013-03-07 2017-07-07 新日铁住金株式会社 Micro Alloying type tufftride part
RU2556261C2 (en) * 2013-08-20 2015-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ижевский государственный технический университет имени М.Т. Калашникова" Production of small-size cutting tools from high-speed steel
WO2016098143A1 (en) * 2014-12-18 2016-06-23 新日鐵住金株式会社 Method for manufacturing nitrided component and steel for nitriding
WO2017043609A1 (en) 2015-09-08 2017-03-16 新日鐵住金株式会社 Nitrided steel component and manufacturing method thereof
EP3584347B1 (en) * 2017-02-20 2023-12-06 Nippon Steel Corporation Steel sheet
JP7273324B2 (en) 2018-10-29 2023-05-15 日本製鉄株式会社 Nitrided part blanks and nitrided parts
FR3096419B1 (en) * 2019-05-22 2021-04-23 Hydromecanique & Frottement Guide member, mechanical system comprising such a guide member, and method of manufacturing such a guide member
CN112853208B (en) * 2020-12-31 2022-01-07 江苏铸鸿锻造有限公司 High-thermal-stability steel for injection molding machine screw and preparation method thereof
CN115558887A (en) * 2022-09-16 2023-01-03 浙江海马传动科技股份有限公司 Copper-steel composite sleeve and preparation method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718379A (en) * 1993-06-30 1995-01-20 Aichi Steel Works Ltd Steel for machine structure excellent in seizing resistance and fatigue strength
JPH09279295A (en) * 1996-04-16 1997-10-28 Nippon Steel Corp Steel for soft-nitriding excellent in cold forgeability
JP3239758B2 (en) * 1996-06-07 2001-12-17 住友金属工業株式会社 Steel material for nitrocarburizing, nitrocarburizing component and method of manufacturing the same
JPH10219393A (en) * 1997-02-04 1998-08-18 Sumitomo Metal Ind Ltd Steel material for soft-nitriding, soft-nitrided parts, and their production
JPH1129838A (en) * 1997-07-15 1999-02-02 Sumitomo Metal Ind Ltd Non-heat treated steel
US6083455A (en) * 1998-01-05 2000-07-04 Sumitomo Metal Industries, Ltd. Steels, steel products for nitriding, nitrided steel parts
JP4556334B2 (en) * 2001-02-01 2010-10-06 大同特殊鋼株式会社 Non-tempered steel hot forged parts for soft nitriding

Also Published As

Publication number Publication date
JP2004162161A (en) 2004-06-10
US20060048860A1 (en) 2006-03-09
EP1548141A4 (en) 2006-02-08
JP4230794B2 (en) 2009-02-25
CN1685073A (en) 2005-10-19
EP1548141A1 (en) 2005-06-29
EP1548141B1 (en) 2011-12-21
WO2004029314A1 (en) 2004-04-08
CN100594249C (en) 2010-03-17

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