GB1351162A - Soft-nitriding procedure for steel and cast iron - Google Patents

Soft-nitriding procedure for steel and cast iron

Info

Publication number
GB1351162A
GB1351162A GB3242871A GB3242871A GB1351162A GB 1351162 A GB1351162 A GB 1351162A GB 3242871 A GB3242871 A GB 3242871A GB 3242871 A GB3242871 A GB 3242871A GB 1351162 A GB1351162 A GB 1351162A
Authority
GB
United Kingdom
Prior art keywords
steel
soft
cast iron
nitriding procedure
iron
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
GB3242871A
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.)
UTILAJE SI PIESE DE SCHIMB MET
Original Assignee
UTILAJE SI PIESE DE SCHIMB MET
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 UTILAJE SI PIESE DE SCHIMB MET filed Critical UTILAJE SI PIESE DE SCHIMB MET
Publication of GB1351162A publication Critical patent/GB1351162A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

1351162 Carbonitriding iron and steel FABRICA DE UTILAJE SI PIESE DE SCHIMB METALOTHEHNICA 9 July 1971 [9 July 1970] 32428/71 Heading C7U Iron or steel is carbonitrided for 1 to 10 hours at 570 Œ 10‹C. in a mixture of methane, ammonia and oxygen in which the ratio CH 4 ; NH 3 is 1, the ratio (CH 4 + NH 3 ): O 2 is 25 to 30, and the ammonia dissociation rate is 35 to 40%.
GB3242871A 1970-07-09 1971-07-09 Soft-nitriding procedure for steel and cast iron Expired GB1351162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO6386470 1970-07-09

Publications (1)

Publication Number Publication Date
GB1351162A true GB1351162A (en) 1974-04-24

Family

ID=20087940

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3242871A Expired GB1351162A (en) 1970-07-09 1971-07-09 Soft-nitriding procedure for steel and cast iron

Country Status (5)

Country Link
US (1) US3705058A (en)
DE (1) DE2133284C3 (en)
FR (1) FR2098281B1 (en)
GB (1) GB1351162A (en)
HU (1) HU163105B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
LU71534A1 (en) * 1973-12-21 1975-06-17
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
US4049473A (en) * 1976-03-11 1977-09-20 Airco, Inc. Methods for carburizing steel parts
US4366008A (en) * 1979-02-09 1982-12-28 Kabushiki Kaisha Fujikoshi Method for hardening steel
JP4500708B2 (en) * 2005-02-25 2010-07-14 住友金属工業株式会社 Non-tempered steel nitrocarburized parts
JP6217840B2 (en) * 2014-03-13 2017-10-25 新日鐵住金株式会社 Nitriding method and method for manufacturing nitrided parts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB395337A (en) * 1930-11-01 1933-07-13 Krupp Ag Improvements in processes for hardening iron, steel, and cast iron, alloys by nitrogenising

Also Published As

Publication number Publication date
FR2098281A1 (en) 1972-03-10
DE2133284B2 (en) 1975-04-24
FR2098281B1 (en) 1975-10-10
DE2133284C3 (en) 1975-11-27
HU163105B (en) 1973-06-28
DE2133284A1 (en) 1972-02-24
US3705058A (en) 1972-12-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee