GB1156180A - A Low Temperature Process for the Carbonitriding of Structural Steel and Cast Iron - Google Patents

A Low Temperature Process for the Carbonitriding of Structural Steel and Cast Iron

Info

Publication number
GB1156180A
GB1156180A GB5740666A GB5740666A GB1156180A GB 1156180 A GB1156180 A GB 1156180A GB 5740666 A GB5740666 A GB 5740666A GB 5740666 A GB5740666 A GB 5740666A GB 1156180 A GB1156180 A GB 1156180A
Authority
GB
United Kingdom
Prior art keywords
carbonitriding
low temperature
cast iron
structural steel
temperature process
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
GB5740666A
Inventor
Bohumil Prenosil
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1156180A publication Critical patent/GB1156180A/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
    • C23C8/28—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
    • 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

1,156,180. Carbonitriding. B. PRENOSIL. Dec. 22, 1966 [Jan. 21, 1966], No.57406/66. Heading C7U. In a low temperature (i. e. 550-750‹C. ), process for carbonitriding structural steel or cast iron so that the, on the main, constituent of the case is the epsilon carbonitride with or without oxygen in the form of isomorphous oxycarbonitride, the reactive medium comprises ammonia gas with one or more aliphatic or aromatic hydrocarbon or mixtures thereof (5-50% by volume of the hydrocarbon based on the ammonia present) which is diluted with 50-90% of a carrier gas of high nitrogen and low hydrogen content (e.g. exothermic gas containing at least 90% N 2 and from which CO 2 and H 2 O have been removed on commerical N 2 ). The above conditions give a dissociation of NH 3 of up to 60% at 550‹C. and up to 90% at 750‹C.
GB5740666A 1966-01-21 1966-12-22 A Low Temperature Process for the Carbonitriding of Structural Steel and Cast Iron Expired GB1156180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS39766 1966-01-21

Publications (1)

Publication Number Publication Date
GB1156180A true GB1156180A (en) 1969-06-25

Family

ID=5335949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5740666A Expired GB1156180A (en) 1966-01-21 1966-12-22 A Low Temperature Process for the Carbonitriding of Structural Steel and Cast Iron

Country Status (4)

Country Link
AT (1) AT282671B (en)
DE (1) DE1521450C3 (en)
FR (1) FR1508735A (en)
GB (1) GB1156180A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003764A (en) * 1973-05-17 1977-01-18 Firma J. Aichelin Preparation of an ε-carbon nitride surface layer on ferrous metal parts
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
US4163680A (en) * 1975-11-21 1979-08-07 Syrchikov Sergei A Process for carbonitriding steel and cast iron articles
FR2518209A1 (en) * 1981-12-16 1983-06-17 Ae Plc METAL RING FOR SEGMENT AND SEAL AND METHOD FOR MANUFACTURING SAME
WO2001055471A1 (en) * 2000-01-27 2001-08-02 Messer Griesheim Gmbh Method for carbonitriding high-carbon and high-alloy steels
FR3001231A1 (en) * 2013-01-24 2014-07-25 Renault Sa THERMOCHEMICAL DIFFUSION PROCESSING METHOD FOR A MECHANICAL ELEMENT, AND CORRESPONDING MECHANICAL ELEMENT

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288785A2 (en) * 1974-10-21 1976-05-21 Air Liquide Gas mixtures for heat treating steel - esp. for controlled carburisation
FR2461019A1 (en) * 1979-07-09 1981-01-30 Honda Motor Co Ltd Gas phase soft nitriding metal workpieces - using gas mixt. contg. relatively low amt. of ammonia
DE2930444C2 (en) * 1979-07-26 1983-07-21 Honda Giken Kogyo K.K., Tokyo Gas soft nitriding process

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003764A (en) * 1973-05-17 1977-01-18 Firma J. Aichelin Preparation of an ε-carbon nitride surface layer on ferrous metal parts
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
US4163680A (en) * 1975-11-21 1979-08-07 Syrchikov Sergei A Process for carbonitriding steel and cast iron articles
FR2518209A1 (en) * 1981-12-16 1983-06-17 Ae Plc METAL RING FOR SEGMENT AND SEAL AND METHOD FOR MANUFACTURING SAME
WO2001055471A1 (en) * 2000-01-27 2001-08-02 Messer Griesheim Gmbh Method for carbonitriding high-carbon and high-alloy steels
FR3001231A1 (en) * 2013-01-24 2014-07-25 Renault Sa THERMOCHEMICAL DIFFUSION PROCESSING METHOD FOR A MECHANICAL ELEMENT, AND CORRESPONDING MECHANICAL ELEMENT
WO2014114414A1 (en) * 2013-01-24 2014-07-31 Renault S.A.S Method for thermochemical diffusion treatment for a mechanical element, and corresponding mechanical element

Also Published As

Publication number Publication date
DE1521450B2 (en) 1974-09-26
DE1521450A1 (en) 1969-07-31
AT282671B (en) 1970-07-10
DE1521450C3 (en) 1975-05-15
FR1508735A (en) 1968-01-05

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