GB1351234A - Process for forming a soft nitride layer in a metal surface - Google Patents

Process for forming a soft nitride layer in a metal surface

Info

Publication number
GB1351234A
GB1351234A GB1940771*[A GB1940771A GB1351234A GB 1351234 A GB1351234 A GB 1351234A GB 1940771 A GB1940771 A GB 1940771A GB 1351234 A GB1351234 A GB 1351234A
Authority
GB
United Kingdom
Prior art keywords
oxygen
forming
nitride layer
metal surface
ammonia
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
GB1940771*[A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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
Priority claimed from JP6384870A external-priority patent/JPS4930339B1/ja
Priority claimed from JP7620270A external-priority patent/JPS4946462B1/ja
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1351234A publication Critical patent/GB1351234A/en
Expired 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
    • C23C8/28—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 more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

Abstract

1351234 Nitriding steel NISSAN MOTOR CO Ltd 8 June 1971 [21 July 1970 31 Aug 1970] 19407/71 Heading C7U The workpiece is treated at 450‹ - 650‹ C in a nitriding or carbonitriding gas containing 0À1 to 10% by volume of a gas containing elemental oxygen, preferred values being 0À5 to 5% of air or 0À1 to 1% of oxygen. Exemplified compositions are up to 30% each of ammonia, carbon monoxide and nitrogen with 5-10% of air, and up to 30% each of ammonia and carbon monoxide with 1 to 2% of oxygen and at least 38% of nitrogen. The furnace lining and workpiece holder may be coated with a mixture of sodium silicate and refractory clay.
GB1940771*[A 1970-07-21 1971-06-08 Process for forming a soft nitride layer in a metal surface Expired GB1351234A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6384870A JPS4930339B1 (en) 1970-07-21 1970-07-21
JP7620270A JPS4946462B1 (en) 1970-08-31 1970-08-31

Publications (1)

Publication Number Publication Date
GB1351234A true GB1351234A (en) 1974-04-24

Family

ID=26404979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1940771*[A Expired GB1351234A (en) 1970-07-21 1971-06-08 Process for forming a soft nitride layer in a metal surface

Country Status (4)

Country Link
US (1) US3748195A (en)
DE (1) DE2135763C3 (en)
FR (1) FR2099491B1 (en)
GB (1) GB1351234A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324918C3 (en) * 1973-05-17 1983-12-08 Fa. J. Aichelin, 7015 Korntal Process for the production of epsilon carbonitride layers on parts made of iron alloys
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
US4035203A (en) * 1973-12-21 1977-07-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for the heat-treatment of steel and for the control of said treatment
US4108693A (en) * 1974-12-19 1978-08-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for the heat-treatment of steel and for the control of said treatment
JPS51105938A (en) * 1975-02-28 1976-09-20 Fujikoshi Kk Ko chutetsuno teionshintanchitsukashorihoho
US3998666A (en) * 1975-07-30 1976-12-21 United States Steel Corporation Subscale reaction strengthening of low carbon ferrous metal stock
SU643549A1 (en) * 1975-11-21 1979-01-25 Волжское объединение по производству легковых автомобилей Method of carbonitration of steel and iron articles
JPS52138027A (en) * 1976-04-08 1977-11-17 Nissan Motor Ferrous member superior in initial fitting and wear resisting property and production process therefor
JPS553863A (en) * 1978-06-27 1980-01-11 Honda Motor Co Ltd Treating method of prime coat by gas softening nitriding
US4342605A (en) * 1979-07-05 1982-08-03 Honda Giken Kogyo Kabushiki Kaisha Gas soft-nitriding method
DE2930444C2 (en) * 1979-07-26 1983-07-21 Honda Giken Kogyo K.K., Tokyo Gas soft nitriding process
PL132768B3 (en) * 1980-07-04 1985-04-30 Inst Mech Precyz Method of thermochemical treatment of cutting tools and tools for plastic working
KR890001030B1 (en) * 1981-12-16 1989-04-20 Ae Plc Nitro-carburizing treatment method and metal ring
GB8323844D0 (en) * 1983-09-06 1983-10-05 Ae Plc Cylinder liners
GB2173513B (en) * 1985-02-25 1989-06-14 Lucas Ind Plc Making of steel component
GB2206131B (en) * 1985-02-25 1989-05-24 Lucas Ind Plc Steel component
JPH081184B2 (en) * 1987-09-30 1996-01-10 株式会社日立製作所 Compressor
ATE235581T1 (en) * 2000-02-04 2003-04-15 Ipsen Int Gmbh METHOD FOR NITRIDING AND/OR NITROCARBURIZING HIGHER ALLOY STEEL
US20020104587A1 (en) * 2001-02-02 2002-08-08 Leo Medeiros Method for nitriding suspension components
KR100503497B1 (en) * 2002-11-25 2005-07-26 한국기계연구원 Heat treating method for improving the wear-resistance and corrosion-resistance of chromium platings
DE102005013088B4 (en) * 2005-03-18 2006-12-28 Man B & W Diesel Ag Gas exchange valve with corrosion protection layer
US7622197B2 (en) * 2006-11-20 2009-11-24 Ferroxy-Aled, Llc Seasoned ferrous cookware

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793309A (en) * 1930-02-26 1931-02-17 Electro Metallurg Co Process of case hardening
US1909669A (en) * 1930-02-26 1933-05-16 Electro Metallurg Co Nitriding
GB395337A (en) * 1930-11-01 1933-07-13 Krupp Ag Improvements in processes for hardening iron, steel, and cast iron, alloys by nitrogenising
DE1533964B2 (en) * 1967-03-23 1975-11-13 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Oven for surface treatment of workpieces in protective or carrier gas

Also Published As

Publication number Publication date
DE2135763B2 (en) 1975-01-02
US3748195A (en) 1973-07-24
DE2135763A1 (en) 1972-01-27
FR2099491B1 (en) 1974-05-31
FR2099491A1 (en) 1972-03-17
DE2135763C3 (en) 1975-11-27

Similar Documents

Publication Publication Date Title
GB1351234A (en) Process for forming a soft nitride layer in a metal surface
GB1471880A (en) Furnace atmosphere for the heat treatment of ferrous metal
GB1461295A (en) Process for the production of epsilon-carconitride layers on ferrous metal parts
GB1310362A (en) Process for purification of refractory metal nitrides
GB1480451A (en) Process for carburizing working parts made of steel
GB1308959A (en) Case hardening
ES8706850A1 (en) Process for rapid cementation in a continuous furnace.
GB1424458A (en) Wires
GB1500476A (en) Process for carbonitriding articles of steel or cast iron
GB1449924A (en) Method of producing a mixed carbide skin on ferrous materials
ES436758A1 (en) Process for the production of steel with increased ductility
GB1414746A (en) Process of nitriding ferrous parts
GB1351162A (en) Soft-nitriding procedure for steel and cast iron
GB1338795A (en) Rotary kilns and methods of treating charges in them
FR2259153A1 (en) Low-carbon chrome steel and chrome-iron alloys - obtd by decarbonisation of high carbon chrome-iron
GB1441092A (en) Gas mixture and process for gas nitriding
GB1495703A (en) Nitriding of ferrous metals
GB1478984A (en) Gas carburusing
SU545697A1 (en) Steel Nitriding Medium
SU529260A1 (en) Chromium compound
SU427083A1 (en) MIXTURE FOR STEEL DECOMPOSITION
GB1499711A (en) Nitriding
GB282365A (en) Improvements in or relating to processes for the production of pure iron
GB1507954A (en) Carburising heat treatments
GB878386A (en) Treatment of molten ferrous metal

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years