DE69401551D1 - Process to improve wear resistance and corrosion resistance of ferrous metal objects - Google Patents

Process to improve wear resistance and corrosion resistance of ferrous metal objects

Info

Publication number
DE69401551D1
DE69401551D1 DE69401551T DE69401551T DE69401551D1 DE 69401551 D1 DE69401551 D1 DE 69401551D1 DE 69401551 T DE69401551 T DE 69401551T DE 69401551 T DE69401551 T DE 69401551T DE 69401551 D1 DE69401551 D1 DE 69401551D1
Authority
DE
Germany
Prior art keywords
salts
oxygenated
ferrous metal
metal objects
improve wear
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
DE69401551T
Other languages
German (de)
Other versions
DE69401551T2 (en
Inventor
Jean Polti
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.)
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Original Assignee
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
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 Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA filed Critical Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Application granted granted Critical
Publication of DE69401551D1 publication Critical patent/DE69401551D1/en
Publication of DE69401551T2 publication Critical patent/DE69401551T2/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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/70—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using melts
    • C23C22/72—Treatment of iron or alloys based thereon
    • 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
    • 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
    • C23C8/80—After-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Luminescent Compositions (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Coating With Molten Metal (AREA)

Abstract

The process consists in immersing the articles which have previously undergone a thermochemical diffusion of either nitriding or sulphonitriding or carbonitriding type, in a bath of molten salts made up of alkali metal carbonates, nitrates, hydroxides and their oxygenated salts, the relative anionic weight quantities of carbonates, nitrates and hydroxides, expressed for sodium salts and corresponding to the active, that is to say liquid, phase of the bath being the following: 11 < CO<2-> < 23 19 < NO3<-> < 37 6 < OH<-> < 19 while the weight quantity of oxygenated salts of alkali metals, expressed as Cr2O7<2-> equivalent, is the following: 0.05 < oxygenated anions < 0.5. This process makes it possible to guarantee a high degree of reproducibility of the results, whatever the type of articles treated.
DE69401551T 1993-08-10 1994-07-26 Process to improve wear resistance and corrosion resistance of ferrous metal objects Expired - Lifetime DE69401551T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309814A FR2708941B1 (en) 1993-08-10 1993-08-10 Method for improving the resistance to wear and corrosion of ferrous metal parts.

Publications (2)

Publication Number Publication Date
DE69401551D1 true DE69401551D1 (en) 1997-03-06
DE69401551T2 DE69401551T2 (en) 1997-07-03

Family

ID=9450082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69401551T Expired - Lifetime DE69401551T2 (en) 1993-08-10 1994-07-26 Process to improve wear resistance and corrosion resistance of ferrous metal objects

Country Status (13)

Country Link
EP (1) EP0638661B1 (en)
JP (1) JP3083453B2 (en)
KR (1) KR100273924B1 (en)
CN (1) CN1054891C (en)
AT (1) ATE148178T1 (en)
BR (1) BR9403101A (en)
CA (1) CA2129162C (en)
DE (1) DE69401551T2 (en)
ES (1) ES2097012T3 (en)
FR (1) FR2708941B1 (en)
MY (1) MY111901A (en)
PL (1) PL177228B1 (en)
TW (1) TW259815B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731232B1 (en) * 1995-03-01 1997-05-16 Stephanois Rech PROCESS FOR TREATING FERROUS SURFACES SUBJECT TO HIGH FRICTION STRESS
JP4487340B2 (en) 1999-07-21 2010-06-23 日本精工株式会社 Method for manufacturing rolling bearing cage
TW557330B (en) 2000-11-29 2003-10-11 Parker Netsushori Kogyo Kk Improved salt bath nitrogenating method for corrosion-resistant iron material and iron units
DE10124933A1 (en) * 2001-05-21 2002-11-28 Endress & Hauser Gmbh & Co Kg Device used for process measurement and control technology comprises a lid made from a metallic material, and a metallic housing of a measuring apparatus
EP2757423B1 (en) * 2013-01-17 2018-07-11 Omega SA Part for clockwork
CN103451595B (en) * 2013-09-02 2015-09-23 中国科学院金属研究所 Mg alloy surface fused salt oxygen carbon sulphur oozes Preparing Anti-corrosion Ceramic Coating and Synthesis and applications altogether
CN113897579A (en) * 2021-09-30 2022-01-07 成都工具研究所有限公司 Low-temperature QPQ treatment process for 316L stainless steel workpiece

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639244A (en) * 1950-07-15 1953-05-19 Remington Arms Co Inc Metal finishing method
DE2934113C2 (en) * 1979-08-23 1985-05-09 Degussa Ag, 6000 Frankfurt Process for increasing the corrosion resistance of nitrided components made of ferrous materials
FR2525637B1 (en) * 1982-04-23 1986-05-09 Stephanois Rech Mec PROCESS FOR TREATING FERROUS METAL PARTS IN OXIDIZING SALT BATTERS TO IMPROVE CORROSION RESISTANCE, PARTS CONTAINING SULFUR
JPH0234793A (en) * 1988-07-26 1990-02-05 Kobe Steel Ltd Production of high-strength hot-rolled steel sheet to be worked having excellent scale adhesion
FR2672059B1 (en) * 1991-01-30 1995-04-28 Stephanois Rech Mec PROCESS FOR PROVIDING FERROUS METAL PARTS, NITRIDATED THEN OXIDIZED, EXCELLENT CORROSION RESISTANCE WHILE MAINTAINING THE ACQUIRED FRICTION PROPERTIES.

Also Published As

Publication number Publication date
JP3083453B2 (en) 2000-09-04
CN1054891C (en) 2000-07-26
CA2129162C (en) 2000-12-12
DE69401551T2 (en) 1997-07-03
KR100273924B1 (en) 2000-12-15
JPH0776766A (en) 1995-03-20
CN1101684A (en) 1995-04-19
MY111901A (en) 2001-02-28
PL177228B1 (en) 1999-10-29
EP0638661B1 (en) 1997-01-22
KR950006020A (en) 1995-03-20
CA2129162A1 (en) 1995-02-11
TW259815B (en) 1995-10-11
PL304595A1 (en) 1995-02-20
ATE148178T1 (en) 1997-02-15
ES2097012T3 (en) 1997-03-16
FR2708941A1 (en) 1995-02-17
BR9403101A (en) 1995-04-11
FR2708941B1 (en) 1995-10-27
EP0638661A1 (en) 1995-02-15

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