CH275809A - Process for the production of protective layers on aluminum and aluminum alloys. - Google Patents

Process for the production of protective layers on aluminum and aluminum alloys.

Info

Publication number
CH275809A
CH275809A CH275809DA CH275809A CH 275809 A CH275809 A CH 275809A CH 275809D A CH275809D A CH 275809DA CH 275809 A CH275809 A CH 275809A
Authority
CH
Switzerland
Prior art keywords
aluminum
production
protective layers
alloys
aluminum alloys
Prior art date
Application number
Other languages
German (de)
Inventor
Max Dr Schenk
Original Assignee
Max Dr Schenk
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 Max Dr Schenk filed Critical Max Dr Schenk
Publication of CH275809A publication Critical patent/CH275809A/en

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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/66—Treatment of aluminium or alloys based thereon
    • C23C22/67—Treatment of aluminium or alloys based thereon with solutions containing hexavalent chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
CH275809D 1948-09-17 1948-09-17 Process for the production of protective layers on aluminum and aluminum alloys. CH275809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH995319X 1948-09-17

Publications (1)

Publication Number Publication Date
CH275809A true CH275809A (en) 1951-06-15

Family

ID=4551871

Family Applications (1)

Application Number Title Priority Date Filing Date
CH275809D CH275809A (en) 1948-09-17 1948-09-17 Process for the production of protective layers on aluminum and aluminum alloys.

Country Status (4)

Country Link
BE (1) BE491076A (en)
CH (1) CH275809A (en)
FR (1) FR995319A (en)
NL (2) NL69374C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235108B (en) * 1963-01-26 1967-02-23 Hamburger Flugzeugbau G M B H Process for the aftertreatment of electrically oxidized layers on parts made of aluminum and aluminum alloys

Also Published As

Publication number Publication date
BE491076A (en)
NL69374C (en)
NL148660B (en)
FR995319A (en) 1951-11-30

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