CH223964A - Process for creating deep black protective layers on aluminum and aluminum alloys. - Google Patents

Process for creating deep black protective layers on aluminum and aluminum alloys.

Info

Publication number
CH223964A
CH223964A CH223964DA CH223964A CH 223964 A CH223964 A CH 223964A CH 223964D A CH223964D A CH 223964DA CH 223964 A CH223964 A CH 223964A
Authority
CH
Switzerland
Prior art keywords
aluminum
protective layers
deep black
black protective
creating deep
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Aluminium-Werke
Original Assignee
Vaw Ver Aluminium Werke Ag
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 Vaw Ver Aluminium Werke Ag filed Critical Vaw Ver Aluminium Werke Ag
Publication of CH223964A publication Critical patent/CH223964A/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
    • 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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
CH223964D 1941-04-03 1941-11-13 Process for creating deep black protective layers on aluminum and aluminum alloys. CH223964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV37581D DE741337C (en) 1941-04-03 1941-04-03 Process for the production of crystal clear and colorless oxide layers on aluminum and aluminum alloys

Publications (1)

Publication Number Publication Date
CH223964A true CH223964A (en) 1942-10-31

Family

ID=7590376

Family Applications (1)

Application Number Title Priority Date Filing Date
CH223964D CH223964A (en) 1941-04-03 1941-11-13 Process for creating deep black protective layers on aluminum and aluminum alloys.

Country Status (2)

Country Link
CH (1) CH223964A (en)
DE (1) DE741337C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380860A (en) * 1964-01-27 1968-04-30 Lord Corp Treatment of aluminum, compositions therefor and products thereof
EP1678345B1 (en) * 2003-11-07 2013-11-20 Henkel AG & Co. KGaA Coloured conversion layers devoid of chrome formed on metal surfaces

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH106224A (en) * 1922-04-03 1924-08-16 Aluminum Co Of America Process for forming on the surface of articles in aluminum or aluminum alloy, an adherent film of properties different from those of the underlying metal.
CH175366A (en) * 1934-04-25 1935-02-28 Peintal S A Process for the production of corrosion-resistant oxidic layers on aluminum and its alloys.

Also Published As

Publication number Publication date
DE741337C (en) 1943-11-10

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