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GB1424136A - Method of treatment of ferrous metal parts so as to increase their resistance to wear and seizure - Google Patents

Method of treatment of ferrous metal parts so as to increase their resistance to wear and seizure

Info

Publication number
GB1424136A
GB1424136A GB777673A GB777673A GB1424136A GB 1424136 A GB1424136 A GB 1424136A GB 777673 A GB777673 A GB 777673A GB 777673 A GB777673 A GB 777673A GB 1424136 A GB1424136 A GB 1424136A
Authority
GB
United Kingdom
Prior art keywords
ions
ferrous metal
feb
molten salt
per cent
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
Application number
GB777673A
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
Priority claimed from FR7205498A external-priority patent/FR2171993A1/en
Priority claimed from FR7242350A external-priority patent/FR2208004A1/en
Priority claimed from FR7302212A external-priority patent/FR2214760A2/en
Application filed by Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA filed Critical Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Publication of GB1424136A publication Critical patent/GB1424136A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • 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
    • C23C8/52—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 more than one element being applied in one step
    • 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
    • C23C8/52—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 more than one element being applied in one step
    • C23C8/54—Carbo-nitriding
    • 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
    • C23C8/58—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 more than one element being applied in more than one step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1424136 Modifying ferrous metal surface CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE ET FROTTEMENT 16 Feb 1973 [18 Feb 1972 29 Nov 1972 23 Jan 1973] 7776/73 Heading C7U Ferrous machine parts are treated to form thereon a white microlayer of at least nitrides and carbides by immersion (e.g. for 30 to 60 minutes) in a molten salt bath at 450-600‹C containing 1-35 wt per cent of carbonate ions, 20-65 wt per cent of cyanate ions, potassium ions, sodium ions and lithium ions the ratio of Li:Na by weight being 0À15 to 0À5 and Li: K being 0À1 to 0À35. The bath may comprise 4 to 6% lithium, S<SP>2-</SP>, SO 3 <SP>--</SP>, S 2 O 3 <SP>--</SP> and PO 3 <SP>--</SP> ions and may be regenerated using urea which is introduced from a distributing device 9 via a hermetically sealed conduit 5 by a gas (e.g. air) from compressor 27. The conduit 5 being surrounded by a cooling jacket 19 through which a cooling gas (e.g. air) is passed. The regenerating agent may be contacted initially with the molten salt in the region of a diffuser 2 and the gases produced allowed to stir the melt and escape via outlet 24.
GB777673A 1972-02-18 1973-02-16 Method of treatment of ferrous metal parts so as to increase their resistance to wear and seizure Expired GB1424136A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7205498A FR2171993A1 (en) 1972-02-18 1972-02-18 Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions
FR7242350A FR2208004A1 (en) 1972-11-29 1972-11-29 Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions
FR7302212A FR2214760A2 (en) 1973-01-23 1973-01-23 Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions

Publications (1)

Publication Number Publication Date
GB1424136A true GB1424136A (en) 1976-02-11

Family

ID=27249785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB777673A Expired GB1424136A (en) 1972-02-18 1973-02-16 Method of treatment of ferrous metal parts so as to increase their resistance to wear and seizure

Country Status (11)

Country Link
US (1) US3912547A (en)
JP (1) JPS5317983B2 (en)
AR (1) AR202385A1 (en)
BE (1) BE795015A (en)
CA (1) CA989714A (en)
CH (1) CH565251A5 (en)
DD (1) DD104814A5 (en)
ES (1) ES411581A1 (en)
GB (1) GB1424136A (en)
IT (1) IT980485B (en)
SE (1) SE400990B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019928A (en) * 1973-03-05 1977-04-26 Duetsche Gold- Und Silber-Scheideanstalt Vormals Roessler Process for nitriding iron and steel in salt baths regenerated with triazine polymers
AT347994B (en) * 1974-03-21 1979-01-25 Daimler Benz Ag METAL NITRATION METHOD
GB1576143A (en) * 1977-07-20 1980-10-01 Brico Eng Sintered metal articles
US4268323A (en) * 1979-04-05 1981-05-19 Kolene Corp. Process for case hardening steel
JPS5714477A (en) * 1980-06-27 1982-01-25 Tokyo Electric Power Co Inc:The Aluminum cover welding method for electric power cable
US4756774A (en) * 1984-09-04 1988-07-12 Fox Steel Treating Co. Shallow case hardening and corrosion inhibition process
US5037491A (en) * 1986-02-28 1991-08-06 Fox Patrick L Shallow case hardening and corrosion inhibition process
FR2688517B1 (en) * 1992-03-10 1994-06-03 Stephanois Rech PROCESS FOR THE PHOSPHATION OF STEEL PARTS, TO IMPROVE THEIR CORROSION AND WEAR RESISTANCES.
FR2693520B1 (en) * 1992-07-10 1994-09-30 Stephanois Rech Mec Cushion for heavily loaded joints or bearings, with a rolled strip hooped lining.
FR2708623B1 (en) * 1993-08-06 1995-10-20 Stephanois Rech Mec Nitriding process for ferrous metal parts, with improved corrosion resistance.
US5576066A (en) * 1993-08-10 1996-11-19 Centre Stephanois De Recherches Mecaniques Hydromecanique Et Frottement Method of improving the wear and corrosion resistance of ferrous metal parts
FR2715943B1 (en) * 1994-02-09 1996-05-15 Stephanois Rech Mec Composition of salt baths based on alkaline nitrates to oxidize ferrous metal and thus improve its resistance to corrosion.
FR2731232B1 (en) * 1995-03-01 1997-05-16 Stephanois Rech PROCESS FOR TREATING FERROUS SURFACES SUBJECT TO HIGH FRICTION STRESS
FR2812888B1 (en) * 2000-08-14 2003-09-05 Stephanois Rech Mec PROCESS FOR THE SURFACE TREATMENT OF MECHANICAL PARTS SUBJECT TO BOTH WEAR AND CORROSION
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
US6746546B2 (en) 2001-11-02 2004-06-08 Kolene Corporation Low temperature nitriding salt and method of use
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
CN106967945A (en) * 2016-01-14 2017-07-21 杭州巨星科技股份有限公司 Rare earth-sulfide for stainless steel urges the QPQ techniques for oozing low temperature QPQ compositions and stainless steel knife altogether

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041769A (en) * 1932-01-13 1936-05-26 John P Larkin Nitriding process
US2049806A (en) * 1933-03-10 1936-08-04 Du Pont Carburization of ferrous metals
US2254296A (en) * 1940-06-15 1941-09-02 Park Chem Co Casehardening salt bath
US2707159A (en) * 1947-02-19 1955-04-26 Lubri Case Inc Wear-resistant ferrous metal articles and their production
US2553865A (en) * 1950-03-11 1951-05-22 Newell Isaac Laird Case hardening composition
US2927875A (en) * 1957-06-26 1960-03-08 Degussa Process for carburizing and carboni-triding iron and steel
US3331708A (en) * 1964-03-23 1967-07-18 Thomas J Buitkus Electrolytic case hardening
US3303063A (en) * 1964-06-15 1967-02-07 Gen Motors Corp Liquid nitriding process using urea

Also Published As

Publication number Publication date
AR202385A1 (en) 1975-06-06
BE795015A (en) 1973-05-29
IT980485B (en) 1974-09-30
DE2307256B2 (en) 1977-04-14
CH565251A5 (en) 1975-08-15
SE400990B (en) 1978-04-17
DD104814A5 (en) 1974-03-20
US3912547A (en) 1975-10-14
CA989714A (en) 1976-05-25
JPS48103430A (en) 1973-12-25
JPS5317983B2 (en) 1978-06-12
DE2307256A1 (en) 1973-08-23
ES411581A1 (en) 1976-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930214