CH232902A - Process for the production of protective layers on aluminum or aluminum alloys. - Google Patents

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

Info

Publication number
CH232902A
CH232902A CH232902DA CH232902A CH 232902 A CH232902 A CH 232902A CH 232902D A CH232902D A CH 232902DA CH 232902 A CH232902 A CH 232902A
Authority
CH
Switzerland
Prior art keywords
aluminum
production
protective layers
alloys
aluminum alloys
Prior art date
Application number
Other languages
German (de)
Inventor
Zuleger Rudolf
Original Assignee
Zuleger Rudolf
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 Zuleger Rudolf filed Critical Zuleger Rudolf
Publication of CH232902A publication Critical patent/CH232902A/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)
CH232902D 1941-06-19 1942-06-12 Process for the production of protective layers on aluminum or aluminum alloys. CH232902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE232902X 1941-06-19

Publications (1)

Publication Number Publication Date
CH232902A true CH232902A (en) 1944-06-30

Family

ID=5883314

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232902D CH232902A (en) 1941-06-19 1942-06-12 Process for the production of protective layers on aluminum or aluminum alloys.

Country Status (3)

Country Link
BE (1) BE445954A (en)
CH (1) CH232902A (en)
FR (1) FR883393A (en)

Also Published As

Publication number Publication date
FR883393A (en) 1943-07-02
BE445954A (en)

Similar Documents

Publication Publication Date Title
CH261381A (en) Process for the production of corrosion-resistant phosphate top layers on metal surfaces.
CH219890A (en) Process for the production of one or more superimposed, thin, resistant layers on solid objects.
CH259830A (en) Process for the production of corrosion-resistant cover layers on metal surfaces.
CH206445A (en) Process for the production of oxidic protective layers on aluminum and aluminum alloys.
CH247997A (en) Process for the production of phosphate coatings on metals.
CH230710A (en) Process for the production of coatings on objects made of aluminum or aluminum alloys.
CH227802A (en) Process for the production of protective layers on the surface of magnesium alloys.
CH254797A (en) Process for making cryolite.
CH232902A (en) Process for the production of protective layers on aluminum or aluminum alloys.
CH223964A (en) Process for creating deep black protective layers on aluminum and aluminum alloys.
CH175366A (en) Process for the production of corrosion-resistant oxidic layers on aluminum and its alloys.
CH209863A (en) Process for the electrolytic production of protective coatings on workpieces made of magnesium and its alloys.
CH227801A (en) Process for the production of wear-resistant protective layers on magnesium and magnesium alloys.
CH476854A (en) Process for the production of non-cutting deformed alloys based on aluminum
CH220502A (en) Process for the aftertreatment of anoxidized aluminum and its alloys.
CH226697A (en) Process for the production of opaque oxide protective layers on objects made of aluminum and its alloys.
CH228946A (en) Process for the production of protective layers on light metals and light metal alloys.
CH225790A (en) Process for the production of surface protection layers on zinc and zinc alloys.
AT148709B (en) Process for the production of oxide layers on aluminum or aluminum alloys.
CH224979A (en) Process for the production of diazotypes.
CH237492A (en) Process for the manufacture of rectifier disks.
CH236015A (en) Process for the production of perchlorethylene.
DK62602C (en) Procedure for the production of protective layers on workpieces of aluminum or aluminum alloys by anodic treatment.
CH227359A (en) Process for the electrolytic deposition of aluminum on objects made of metals.
CH229615A (en) Process for the production of nickel coatings on objects made of aluminum and aluminum alloys.