ATE87T1 - PROCESS FOR THE ELECTROLYTIC COLORING OF ANODISED OXIDE COATINGS PRODUCED ON ALUMINUM. - Google Patents
PROCESS FOR THE ELECTROLYTIC COLORING OF ANODISED OXIDE COATINGS PRODUCED ON ALUMINUM.Info
- Publication number
- ATE87T1 ATE87T1 AT79103288T AT79103288T ATE87T1 AT E87 T1 ATE87 T1 AT E87T1 AT 79103288 T AT79103288 T AT 79103288T AT 79103288 T AT79103288 T AT 79103288T AT E87 T1 ATE87 T1 AT E87T1
- Authority
- AT
- Austria
- Prior art keywords
- aluminum
- oxide coatings
- coatings produced
- electrolytic coloring
- sulfuric acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 229910052782 aluminium Inorganic materials 0.000 title abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004040 coloring Methods 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 239000003792 electrolyte Substances 0.000 abstract 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000003929 acidic solution Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- IUTCEZPPWBHGIX-UHFFFAOYSA-N tin(2+) Chemical class [Sn+2] IUTCEZPPWBHGIX-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
- C25D11/22—Electrolytic after-treatment for colouring layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Electrolytic Production Of Metals (AREA)
- Secondary Cells (AREA)
Abstract
A two-step process for electrolytically coloring aluminum with metal salts is disclosed in which an oxide layer, produced by direct current in an acidic solution, is colored by means of an alternating current through an electrolyte containing a tin(II) salt. The electrolyte inventively contains 1 to 10 g/l iron(II) salts of sulfuric acid, a sulfuric acid with at most 8 carbon atoms or of sulfamic acid. The process prevents the formation of deposits in the electrolytes on standing. In addition, a considerable color-enhancing effect can be achieved.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2850136A DE2850136B2 (en) | 1978-11-18 | 1978-11-18 | Process for the electrolytic coloring of anodic oxide layers produced on aluminum |
| EP79103288A EP0011097B1 (en) | 1978-11-18 | 1979-09-05 | Process for electrolytic colouring of anodic oxide layers produced on aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE87T1 true ATE87T1 (en) | 1981-07-15 |
Family
ID=6055052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT79103288T ATE87T1 (en) | 1978-11-18 | 1979-09-05 | PROCESS FOR THE ELECTROLYTIC COLORING OF ANODISED OXIDE COATINGS PRODUCED ON ALUMINUM. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4401525A (en) |
| EP (1) | EP0011097B1 (en) |
| AT (1) | ATE87T1 (en) |
| BR (1) | BR7906756A (en) |
| DE (1) | DE2850136B2 (en) |
| DK (1) | DK486579A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718849A1 (en) * | 1987-06-05 | 1988-12-15 | Henkel Kgaa | ELECTROLYTIC COLORING OF ANODISED ALUMINUM |
| DE3824403A1 (en) * | 1988-07-19 | 1990-01-25 | Henkel KGaA, 4000 Düsseldorf | METHOD FOR ELECTROLYTIC METAL SALT COLORING OF ANODISED ALUMINUM SURFACES |
| GB9825043D0 (en) * | 1998-11-16 | 1999-01-13 | Agfa Gevaert Ltd | Production of support for lithographic printing plate |
| EP3553208A1 (en) * | 2018-04-09 | 2019-10-16 | DURA Operating, LLC | Method of manufacturing an aluminium component having a coloured surface |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423662B2 (en) * | 1975-03-05 | 1979-08-15 | Yoshida Kogyo Kk | Aruminiumu mataha aruminiumugokinno goorudoshokuhenodenkaichakushokuho |
| JPS5423663B2 (en) * | 1975-03-06 | 1979-08-15 | ||
| JPS5296940A (en) * | 1976-02-10 | 1977-08-15 | Mitsui Keikinzoku Kako | Electrolytic pigmentation process for aluminum or its alloy |
| JPS5318438A (en) * | 1976-08-04 | 1978-02-20 | Mitsui Keikinzoku Kako | Process for forming electrolytic pigmentation coatings on aluminum and aluminum alloy |
| FR2384037A1 (en) * | 1977-03-17 | 1978-10-13 | Nice Anodisation Sa | Electrolytic colouring of anodised aluminium and its alloys - using alternating current and bath contg. stannous sulphate |
-
1978
- 1978-11-18 DE DE2850136A patent/DE2850136B2/en not_active Ceased
-
1979
- 1979-09-05 EP EP79103288A patent/EP0011097B1/en not_active Expired
- 1979-09-05 AT AT79103288T patent/ATE87T1/en active
- 1979-10-19 BR BR7906756A patent/BR7906756A/en not_active IP Right Cessation
- 1979-11-14 US US06/093,990 patent/US4401525A/en not_active Expired - Lifetime
- 1979-11-16 DK DK486579A patent/DK486579A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US4401525A (en) | 1983-08-30 |
| DE2850136A1 (en) | 1980-05-22 |
| DK486579A (en) | 1980-05-19 |
| EP0011097A2 (en) | 1980-05-28 |
| EP0011097B1 (en) | 1981-06-17 |
| EP0011097A3 (en) | 1980-06-11 |
| DE2850136B2 (en) | 1981-01-22 |
| BR7906756A (en) | 1980-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RVE | Rejection due to an opposition filed with the epo |