BE769622A - Masse de protection pour empecher la cementation, la nitruration, ou analogues - Google Patents

Masse de protection pour empecher la cementation, la nitruration, ou analogues

Info

Publication number
BE769622A
BE769622A BE769622A BE769622A BE769622A BE 769622 A BE769622 A BE 769622A BE 769622 A BE769622 A BE 769622A BE 769622 A BE769622 A BE 769622A BE 769622 A BE769622 A BE 769622A
Authority
BE
Belgium
Prior art keywords
nitruration
similar
protective mass
cementation
prevent
Prior art date
Application number
BE769622A
Other languages
English (en)
Original Assignee
Zahnradfabrik Friedrichs Hafen
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 Zahnradfabrik Friedrichs Hafen filed Critical Zahnradfabrik Friedrichs Hafen
Publication of BE769622A publication Critical patent/BE769622A/fr

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
    • 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
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemically Coating (AREA)
BE769622A 1970-08-21 1971-07-07 Masse de protection pour empecher la cementation, la nitruration, ou analogues BE769622A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702041534 DE2041534A1 (de) 1970-08-21 1970-08-21 Schutzmasse zum Verhindern der Aufkohlung,Nitrierung od.ae.

Publications (1)

Publication Number Publication Date
BE769622A true BE769622A (fr) 1971-11-16

Family

ID=5780346

Family Applications (1)

Application Number Title Priority Date Filing Date
BE769622A BE769622A (fr) 1970-08-21 1971-07-07 Masse de protection pour empecher la cementation, la nitruration, ou analogues

Country Status (5)

Country Link
BE (1) BE769622A (fr)
DE (1) DE2041534A1 (fr)
FR (1) FR2103412A1 (fr)
GB (1) GB1305517A (fr)
NL (1) NL7111421A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118374170A (zh) * 2024-04-12 2024-07-23 东北大学 一种用于钢化学热处理过程的水性防渗涂料及其制备方法和应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165243A (en) * 1978-05-31 1979-08-21 Federal-Mogul Corporation Method of making selectively carburized forged powder metal parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118374170A (zh) * 2024-04-12 2024-07-23 东北大学 一种用于钢化学热处理过程的水性防渗涂料及其制备方法和应用

Also Published As

Publication number Publication date
GB1305517A (fr) 1973-02-07
NL7111421A (fr) 1972-02-23
DE2041534A1 (de) 1972-02-24
FR2103412A1 (fr) 1972-04-14

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