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
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)
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)
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 |
WO2005047565A1 (en) * | 2003-11-07 | 2005-05-26 | Henkel Kommanditgesellschaft Auf Aktien | Coloured conversion layers devoid of chrome formed on metal surfaces |
Family Cites Families (2)
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. |
-
1941
- 1941-04-03 DE DEV37581D patent/DE741337C/en not_active Expired
- 1941-11-13 CH CH223964D patent/CH223964A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE741337C (en) | 1943-11-10 |
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