GB1292699A - Coloured protective coating produced electrolytically on articles of aluminium - Google Patents
Coloured protective coating produced electrolytically on articles of aluminiumInfo
- Publication number
- GB1292699A GB1292699A GB34473/70A GB3447370A GB1292699A GB 1292699 A GB1292699 A GB 1292699A GB 34473/70 A GB34473/70 A GB 34473/70A GB 3447370 A GB3447370 A GB 3447370A GB 1292699 A GB1292699 A GB 1292699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coloured
- aluminium
- protective coating
- layer
- articles
- 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)
- Other Surface Treatments For Metallic Materials (AREA)
- Electrochemical Coating By Surface Reaction (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
1292699 Colour anodizing aluminium CEGEDUR G P 16 July 1970 [21 July 1969] 34473/70 Heading C7B A coloured (e.g. bronze) protective coating resistant to corrosion and ultraviolet rays is produced on an article of Al or alloy thereof, e. g. containing 0À6% Mg or 0À5% each of Si and Mg or 1% each of Si, Mg and Mn, by forming a porous layer of alumina thereon e. g. by anodizing in a 50g/l sulphuric or chromic acid bath using D.C. or A.C., and depositing a metal pigment into the pores of the layer by A. C. electrolysis from an aqueous acid (e.g. 3À2- 4À7 pH solution containing Ni SO 4 e. g. 1-200g/l NiCl 2 e.g. 1-500g/l, and optionally (NH 4 ) 2 SO 4 and H 3 BO 3 e. g. each 1-100g/l. The A. C. may be either at constant density at 0À1-5 A/dm<SP>2</SP> or at constant voltage at 5-80 V; the counterelectrode may be of Ni or stainless steel. The coloured layer may be sealed with boiling water which may contain Ni acetate. Prior to coating, the article may be pickled in 50g/l soda solution and immersed in HNO 3 with intermittent rinsing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6924728A FR2052132A5 (en) | 1969-07-21 | 1969-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1292699A true GB1292699A (en) | 1972-10-11 |
Family
ID=9037743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34473/70A Expired GB1292699A (en) | 1969-07-21 | 1970-07-16 | Coloured protective coating produced electrolytically on articles of aluminium |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3704210A (en) |
| JP (1) | JPS5015216B1 (en) |
| BE (1) | BE753706A (en) |
| CA (1) | CA926337A (en) |
| CH (1) | CH515338A (en) |
| DE (1) | DE2035599C3 (en) |
| ES (1) | ES381942A1 (en) |
| FR (1) | FR2052132A5 (en) |
| GB (1) | GB1292699A (en) |
| LU (1) | LU61358A1 (en) |
| NL (1) | NL7010552A (en) |
| SE (1) | SE351441B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3849264A (en) * | 1972-09-05 | 1974-11-19 | Lockheed Aircraft Corp | Production of stain resistant, clear, sealed anodized films |
| JPS547267B2 (en) * | 1973-09-21 | 1979-04-05 | ||
| US4147598A (en) * | 1975-08-27 | 1979-04-03 | Riken Keikinzoku Kogyo Kabushiki Kaisha | Method for producing colored anodic oxide films on aluminum based alloy materials |
| JPS5255601A (en) * | 1975-11-01 | 1977-05-07 | Sony Corp | Driving device for tone arm |
| US4180443A (en) * | 1978-06-28 | 1979-12-25 | Reynolds Metals Company | Method for coloring aluminum |
| US4179342A (en) * | 1978-06-28 | 1979-12-18 | Reynolds Metals Company | Coating system method for coloring aluminum |
| US8349462B2 (en) * | 2009-01-16 | 2013-01-08 | Alcoa Inc. | Aluminum alloys, aluminum alloy products and methods for making the same |
| CN102304743B (en) * | 2011-09-16 | 2014-04-02 | 南南铝业股份有限公司 | Electrochemical oxidation film sealing method for aluminum/aluminum alloy surface |
-
1969
- 1969-07-21 FR FR6924728A patent/FR2052132A5/fr not_active Expired
-
1970
- 1970-07-15 US US55295A patent/US3704210A/en not_active Expired - Lifetime
- 1970-07-16 NL NL7010552A patent/NL7010552A/xx unknown
- 1970-07-16 GB GB34473/70A patent/GB1292699A/en not_active Expired
- 1970-07-17 ES ES381942A patent/ES381942A1/en not_active Expired
- 1970-07-17 LU LU61358D patent/LU61358A1/xx unknown
- 1970-07-17 DE DE2035599A patent/DE2035599C3/en not_active Expired
- 1970-07-20 CA CA088629A patent/CA926337A/en not_active Expired
- 1970-07-20 CH CH1100470A patent/CH515338A/en not_active IP Right Cessation
- 1970-07-20 BE BE753706D patent/BE753706A/en unknown
- 1970-07-20 JP JP45062918A patent/JPS5015216B1/ja active Pending
- 1970-07-21 SE SE10074/70A patent/SE351441B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2052132A5 (en) | 1971-04-09 |
| LU61358A1 (en) | 1971-07-13 |
| CH515338A (en) | 1971-11-15 |
| DE2035599B2 (en) | 1973-05-24 |
| US3704210A (en) | 1972-11-28 |
| BE753706A (en) | 1971-01-20 |
| DE2035599C3 (en) | 1973-12-13 |
| JPS5015216B1 (en) | 1975-06-03 |
| ES381942A1 (en) | 1973-04-01 |
| NL7010552A (en) | 1971-01-25 |
| CA926337A (en) | 1973-05-15 |
| SE351441B (en) | 1972-11-27 |
| DE2035599A1 (en) | 1971-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |