DD47847A - - Google Patents

Info

Publication number
DD47847A
DD47847A DD47847DA DD47847A DD 47847 A DD47847 A DD 47847A DD 47847D A DD47847D A DD 47847DA DD 47847 A DD47847 A DD 47847A
Authority
DD
German Democratic Republic
Application number
Publication of DD47847A publication Critical patent/DD47847A/xx

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)
DD47847D DD47847A (de)

Publications (1)

Publication Number Publication Date
DD47847A true DD47847A (de)

Family

ID=247096

Family Applications (1)

Application Number Title Priority Date Filing Date
DD47847D DD47847A (de)

Country Status (1)

Country Link
DD (1) DD47847A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162654A1 (en) * 1971-12-10 1973-07-20 Barkas Werke Veb Accelerated gas nitriding process - for (ferrous) metals using carbon monoxide in ammonical nitriding gas
EP0089885A3 (en) * 1982-03-23 1984-12-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method of surface-hardening metallic parts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2162654A1 (en) * 1971-12-10 1973-07-20 Barkas Werke Veb Accelerated gas nitriding process - for (ferrous) metals using carbon monoxide in ammonical nitriding gas
EP0089885A3 (en) * 1982-03-23 1984-12-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method of surface-hardening metallic parts
US4531984A (en) * 1982-03-23 1985-07-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Surface hardening process for metal parts

Similar Documents

Publication Publication Date Title
US4531984A (en) Surface hardening process for metal parts
KR101215380B1 (ko) 가스질화법을 이용한 강재 표면 개질 방법 및 이를 이용하여 제조된 강재
EP0707661B1 (de) Verfahren und ofen zum nitrieren von metallischen formteilen bei niedrigen druck
US1793309A (en) Process of case hardening
JP6357042B2 (ja) ガス軟窒化方法およびガス軟窒化装置
FR2388896B2 (de)
US5421914A (en) Surface modification of high temperature iron alloys
GB2049740A (en) Improvements in or relating to case hardening
GB0118131D0 (en) Performance enhancement of steel auxiliary bearing components
RU2478137C2 (ru) Способ химико-термической обработки стальных изделий
FR2719057B1 (fr) Procédé pour la nitruration à bsase pression d'une pièce métallique et four pour la mise en Óoeuvre dudit procédé.
DE1521172A1 (de) Verfahren zum Haerten von Stahl durch Nitrierung und Vorrichtung zur Durchfuehrung dieses Verfahrens
FR2162654B1 (de)
FR711749A (fr) Procédé de cémentation par nitruration
FR711748A (fr) Procédé de cémentation
CH410904A (de) Verfahren zur Verhütung von Korrosionen bei der Harnstoffsynthese
FR2999609B1 (fr) Procede de renforcement de l'acier par effets thermochimiques et effet de re-austenitisation
CN102914151A (zh) 金属熔液保持器
DD47847A (de)