FR685474A - Method and apparatus for azotizing steel articles - Google Patents

Method and apparatus for azotizing steel articles

Info

Publication number
FR685474A
FR685474A FR685474DA FR685474A FR 685474 A FR685474 A FR 685474A FR 685474D A FR685474D A FR 685474DA FR 685474 A FR685474 A FR 685474A
Authority
FR
France
Prior art keywords
azotizing
steel articles
articles
steel
azotizing steel
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.)
CENTRAL ALLOY STEEL CORP
Original Assignee
CENTRAL ALLOY STEEL CORP
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 CENTRAL ALLOY STEEL CORP filed Critical CENTRAL ALLOY STEEL CORP
Application granted granted Critical
Publication of FR685474A publication Critical patent/FR685474A/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)
FR685474D 1929-11-25 1929-11-25 Method and apparatus for azotizing steel articles Expired FR685474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR685474T 1929-11-25

Publications (1)

Publication Number Publication Date
FR685474A true FR685474A (en) 1930-07-10

Family

ID=9024986

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685474D Expired FR685474A (en) 1929-11-25 1929-11-25 Method and apparatus for azotizing steel articles

Country Status (1)

Country Link
FR (1) FR685474A (en)

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