FR1116055A - Process for preparing gas for the case-hardening of steel or for the protection of steels against oxidation or decarburization - Google Patents

Process for preparing gas for the case-hardening of steel or for the protection of steels against oxidation or decarburization

Info

Publication number
FR1116055A
FR1116055A FR1116055DA FR1116055A FR 1116055 A FR1116055 A FR 1116055A FR 1116055D A FR1116055D A FR 1116055DA FR 1116055 A FR1116055 A FR 1116055A
Authority
FR
France
Prior art keywords
decarburization
hardening
steel
protection
case
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
Other languages
French (fr)
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Application granted granted Critical
Publication of FR1116055A publication Critical patent/FR1116055A/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
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
FR1116055D 1954-12-18 1954-12-18 Process for preparing gas for the case-hardening of steel or for the protection of steels against oxidation or decarburization Expired FR1116055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1116055T 1954-12-18

Publications (1)

Publication Number Publication Date
FR1116055A true FR1116055A (en) 1956-05-03

Family

ID=9629281

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1116055D Expired FR1116055A (en) 1954-12-18 1954-12-18 Process for preparing gas for the case-hardening of steel or for the protection of steels against oxidation or decarburization

Country Status (1)

Country Link
FR (1) FR1116055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013654A1 (en) * 1979-01-15 1980-07-23 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for the heat treatment of steel and for controlling said treatment; steel obtained thereby
DE3110329A1 (en) * 1981-03-17 1982-09-30 Brown, Boveri & Cie Ag, 6800 Mannheim Gas carburisation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013654A1 (en) * 1979-01-15 1980-07-23 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for the heat treatment of steel and for controlling said treatment; steel obtained thereby
DE3110329A1 (en) * 1981-03-17 1982-09-30 Brown, Boveri & Cie Ag, 6800 Mannheim Gas carburisation process

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