IT983006B - PROCEDURE FOR GAS NITRURING OF NON-ALLOY STEEL AND GATI IN TWO STAGES - Google Patents

PROCEDURE FOR GAS NITRURING OF NON-ALLOY STEEL AND GATI IN TWO STAGES

Info

Publication number
IT983006B
IT983006B IT49347/73A IT4934773A IT983006B IT 983006 B IT983006 B IT 983006B IT 49347/73 A IT49347/73 A IT 49347/73A IT 4934773 A IT4934773 A IT 4934773A IT 983006 B IT983006 B IT 983006B
Authority
IT
Italy
Prior art keywords
nitruring
gati
stages
procedure
gas
Prior art date
Application number
IT49347/73A
Other languages
Italian (it)
Original Assignee
Zahnradfabrik Friedrichshafen
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 DE19722221169 external-priority patent/DE2221169C3/en
Application filed by Zahnradfabrik Friedrichshafen filed Critical Zahnradfabrik Friedrichshafen
Application granted granted Critical
Publication of IT983006B publication Critical patent/IT983006B/en

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
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-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
    • C23C8/08—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)
IT49347/73A 1972-04-29 1973-04-10 PROCEDURE FOR GAS NITRURING OF NON-ALLOY STEEL AND GATI IN TWO STAGES IT983006B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722221169 DE2221169C3 (en) 1972-04-29 Process for gas nitriding of workpieces made of preferably unalloyed and low-alloy steels

Publications (1)

Publication Number Publication Date
IT983006B true IT983006B (en) 1974-10-31

Family

ID=5843668

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49347/73A IT983006B (en) 1972-04-29 1973-04-10 PROCEDURE FOR GAS NITRURING OF NON-ALLOY STEEL AND GATI IN TWO STAGES

Country Status (4)

Country Link
US (1) US3870572A (en)
JP (1) JPS4948528A (en)
FR (1) FR2182991B3 (en)
IT (1) IT983006B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
SU679154A3 (en) * 1974-06-17 1979-08-05 Мицубиси Дзюкогио Кабусики Кайся (Фирма) Metal chemical heat treatment method
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
US3998666A (en) * 1975-07-30 1976-12-21 United States Steel Corporation Subscale reaction strengthening of low carbon ferrous metal stock
US4264380A (en) * 1979-11-16 1981-04-28 General Electric Company Nitride casehardening process and the nitrided product thereof
DE3017531A1 (en) * 1980-05-08 1981-11-12 Kali-Chemie Ag, 3000 Hannover METHOD FOR IMPROVING THE THERMAL STABILITY OF FLUORINE CHLORINE HYDROCARBONS
DE68921722T2 (en) * 1988-12-27 1995-09-07 Mitsubishi Chem Corp Process for the preparation of DL-serine and process for its separation and purification.
WO1992000397A1 (en) * 1990-06-22 1992-01-09 Evgeny Viktorovich Skidanov Method for gas nitriding of alloyed steel articles
JPH05148612A (en) * 1991-11-25 1993-06-15 Nippon Piston Ring Co Ltd Manufacture of piston ring
US5298091A (en) * 1991-12-20 1994-03-29 United Technologies Corporation Inhibiting coke formation by heat treating in nitrogen atmosphere
US5254183A (en) * 1991-12-20 1993-10-19 United Techynologies Corporation Gas turbine elements with coke resistant surfaces
US7556699B2 (en) * 2004-06-17 2009-07-07 Cooper Clark Vantine Method of plasma nitriding of metals via nitrogen charging
CN102719829B (en) * 2012-02-02 2013-09-25 山东常林机械集团股份有限公司 Surface hardening malcomising process for ductile cast iron hydraulic part
FR3028530B1 (en) * 2014-11-14 2020-10-23 Peugeot Citroen Automobiles Sa PROCESS AND PLANT FOR CARBONITRURING STEEL PART (S) UNDER LOW PRESSURE AND HIGH TEMPERATURE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965798A (en) * 1930-02-26 1934-07-10 Electro Metallurg Co Nitriding
US2472320A (en) * 1941-02-05 1949-06-07 Ford Motor Co Method of heat-treating steel

Also Published As

Publication number Publication date
US3870572A (en) 1975-03-11
JPS4948528A (en) 1974-05-10
DE2221169B2 (en) 1976-09-30
FR2182991A1 (en) 1973-12-14
DE2221169A1 (en) 1973-11-08
FR2182991B3 (en) 1976-04-09

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