GB1383241A - Method of electrolytically colouring an anodized aluminium or alu minium alloy article - Google Patents
Method of electrolytically colouring an anodized aluminium or alu minium alloy articleInfo
- Publication number
- GB1383241A GB1383241A GB19472A GB19472A GB1383241A GB 1383241 A GB1383241 A GB 1383241A GB 19472 A GB19472 A GB 19472A GB 19472 A GB19472 A GB 19472A GB 1383241 A GB1383241 A GB 1383241A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compound
- electrolytically
- coloured
- colouring
- alloy article
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
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)
- Electrochemical Coating By Surface Reaction (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1383241 Electrolytically colouring anodized aluminium O C GEDDE 3 Jan 1972 [2 Jan 1971] 194/72 Heading C7B An Al or Al alloy article, having an aluminium oxide layer formed thereon by previous anodizing (e.g. in H 2 SO 4 ), is electrolytically coloured by applying an alternating voltage or a pulsating voltage derived from an alternating voltage to the article and a counter-electrode in an acid aqueous solution of an ionizable compound of Mo or W to form a coloured Mo or W compound in the aluminium oxide layer. The counter electrode may be of Mo, W, Ti or stainless steel. The Mo or W compound may be silicomolybdic or silicotungstic acid or ammonium heptamolybdate. The solution may also comprise an ionizable compound of a metal other than Mo or W and capable of yielding a coloured compound. The frequency of the pulsating current may be at 1.5 pulses per second. The voltage may be 2 to 50V and the current density 0.2 to 1.0A/dm<SP>2</SP>. Between the initial anodizing and the subsequent electrolytic colouring there may be an additional electrolytic colouring step using an ionizable compound of a metal other than Mo or W. The final product may be sealed in boiling water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO171A NO125236B (en) | 1971-01-02 | 1971-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1383241A true GB1383241A (en) | 1975-02-05 |
Family
ID=19877303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19472A Expired GB1383241A (en) | 1971-01-02 | 1972-01-03 | Method of electrolytically colouring an anodized aluminium or alu minium alloy article |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5140862B2 (en) |
| AT (1) | AT309182B (en) |
| AU (1) | AU3736471A (en) |
| BE (1) | BE777460A (en) |
| CA (1) | CA975710A (en) |
| CH (1) | CH583307A5 (en) |
| DE (1) | DE2164030B2 (en) |
| ES (1) | ES398449A1 (en) |
| FR (1) | FR2120179B1 (en) |
| GB (1) | GB1383241A (en) |
| IT (1) | IT944580B (en) |
| NL (1) | NL167480C (en) |
| NO (1) | NO125236B (en) |
| SE (1) | SE373608B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228436A (en) * | 1975-08-29 | 1977-03-03 | Shokosha Kk | Dyeing process for aluminum and its alloy |
| JPS5245545A (en) * | 1975-08-29 | 1977-04-11 | Shokosha Kk | Dyeing process for aluminum and its alloy |
| US4756772A (en) * | 1983-10-31 | 1988-07-12 | Alcan International Limited | Method of coloring a porous anodic oxide film on the surface of an aluminum article |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2314273A1 (en) * | 1975-06-10 | 1977-01-07 | Keller Eberhard | Colouring anodically oxidised aluminium - after electrochemical colouring, by immersion in silicon- or phosphorus heteropolyacids of molybdenum or tungsten |
| JPS558414U (en) * | 1978-06-30 | 1980-01-19 |
-
1971
- 1971-01-02 NO NO171A patent/NO125236B/no unknown
- 1971-12-22 NL NL7117649A patent/NL167480C/en not_active IP Right Cessation
- 1971-12-23 DE DE19712164030 patent/DE2164030B2/en not_active Withdrawn
- 1971-12-24 AU AU37364/71A patent/AU3736471A/en not_active Expired
- 1971-12-27 JP JP10554271A patent/JPS5140862B2/ja not_active Expired
- 1971-12-28 FR FR7147940A patent/FR2120179B1/fr not_active Expired
- 1971-12-29 BE BE777460A patent/BE777460A/en unknown
- 1971-12-29 ES ES398449A patent/ES398449A1/en not_active Expired
- 1971-12-29 AT AT1123571A patent/AT309182B/en active
- 1971-12-30 IT IT3313971A patent/IT944580B/en active
- 1971-12-30 SE SE1693471A patent/SE373608B/en unknown
- 1971-12-30 CH CH1923071A patent/CH583307A5/xx not_active IP Right Cessation
-
1972
- 1972-01-03 GB GB19472A patent/GB1383241A/en not_active Expired
- 1972-01-04 CA CA131,563A patent/CA975710A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228436A (en) * | 1975-08-29 | 1977-03-03 | Shokosha Kk | Dyeing process for aluminum and its alloy |
| JPS5245545A (en) * | 1975-08-29 | 1977-04-11 | Shokosha Kk | Dyeing process for aluminum and its alloy |
| JPS5435978B2 (en) * | 1975-08-29 | 1979-11-06 | ||
| JPS5435977B2 (en) * | 1975-08-29 | 1979-11-06 | ||
| US4756772A (en) * | 1983-10-31 | 1988-07-12 | Alcan International Limited | Method of coloring a porous anodic oxide film on the surface of an aluminum article |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7117649A (en) | 1972-07-04 |
| CA975710A (en) | 1975-10-07 |
| DE2164030A1 (en) | 1972-07-13 |
| FR2120179B1 (en) | 1974-05-10 |
| JPS4848337A (en) | 1973-07-09 |
| ES398449A1 (en) | 1974-08-16 |
| BE777460A (en) | 1972-04-17 |
| NL167480C (en) | 1981-12-16 |
| FR2120179A1 (en) | 1972-08-11 |
| DE2164030B2 (en) | 1976-06-24 |
| NL167480B (en) | 1981-07-16 |
| IT944580B (en) | 1973-04-20 |
| CH583307A5 (en) | 1976-12-31 |
| NO125236B (en) | 1972-08-07 |
| AT309182B (en) | 1973-08-10 |
| JPS5140862B2 (en) | 1976-11-06 |
| SE373608B (en) | 1975-02-10 |
| AU3736471A (en) | 1973-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |