FR977965A - Perfectionnements aux fours de nitruration - Google Patents

Perfectionnements aux fours de nitruration

Info

Publication number
FR977965A
FR977965A FR977965DA FR977965A FR 977965 A FR977965 A FR 977965A FR 977965D A FR977965D A FR 977965DA FR 977965 A FR977965 A FR 977965A
Authority
FR
France
Prior art keywords
nitriding furnaces
nitriding
furnaces
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
English (en)
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.)
Fours Ind Et Metallurg SA Des
Original Assignee
Fours Ind Et Metallurg SA Des
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 Fours Ind Et Metallurg SA Des filed Critical Fours Ind Et Metallurg SA Des
Application granted granted Critical
Publication of FR977965A publication Critical patent/FR977965A/fr
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
    • C23C8/04—Treatment of selected surface areas, e.g. using masks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR977965D 1942-11-30 1942-11-30 Perfectionnements aux fours de nitruration Expired FR977965A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR977965T 1942-11-30

Publications (1)

Publication Number Publication Date
FR977965A true FR977965A (fr) 1951-04-09

Family

ID=9520155

Family Applications (1)

Application Number Title Priority Date Filing Date
FR977965D Expired FR977965A (fr) 1942-11-30 1942-11-30 Perfectionnements aux fours de nitruration

Country Status (1)

Country Link
FR (1) FR977965A (fr)

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