GB1216440A - Process for colouring anodised aluminium by electrolytic deposition - Google Patents
Process for colouring anodised aluminium by electrolytic depositionInfo
- Publication number
- GB1216440A GB1216440A GB43929/69A GB4392969A GB1216440A GB 1216440 A GB1216440 A GB 1216440A GB 43929/69 A GB43929/69 A GB 43929/69A GB 4392969 A GB4392969 A GB 4392969A GB 1216440 A GB1216440 A GB 1216440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ions
- niso
- sept
- hydroxide
- maintained
- 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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Chemical Treatment Of Metals (AREA)
- Printing Plates And Materials Therefor (AREA)
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
1,216,440. Colouring anodized aluminium. ALCAN RESEARCH & DEVELOPMENT Ltd. Sept. 4, 1969 [Sept.23, 1968], No. 43929/ 69. Heading C7B. An anodized aluminium metal or alloy workpiece is coloured e.g. bronze by passing A.C. between it and a counter-electrode whilst immersed in an acidic solution of a Ni or Co salt, in which the pH is maintained between 4À7 and 7 and Al ions are maintained at a value not less than 2 p. p. m. or sufficient to maintain saturation, whichever is the less, to electro-deposit an oxide or hydroxide of Ni or Co. The effect of the above pH is to suppress the dissolved Al ions to a value below 10 p. p. m. The solution may be made up with 15-40g/1 each of NiSO 4 . 7H 2 O and H 3 BO 3 with 10-20g/l (NH 4 ) 2 SO 4 , preferably also 2-30g/l MgSO 4 .7H 2 O, to which is added 0À06-0À12g/l Al 2 (SO 4 ) 3 . 18H 2 O (equivalent to 5-10 p. p. m. Al ions); CoSO 4 may be substituted for NiSO 4 . The counterelectrode may be of Ni(or Co) or graphite. Other Al compounds maybe added, e.g. acetate or hydroxide. Anodizing may be effected, using D.C., in aqueous H 2 SO 4 , CrO 3 or a sulphonic acid e. g. sulphosalicylic acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76171768A | 1968-09-23 | 1968-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1216440A true GB1216440A (en) | 1970-12-23 |
Family
ID=25063062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43929/69A Expired GB1216440A (en) | 1968-09-23 | 1969-09-04 | Process for colouring anodised aluminium by electrolytic deposition |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3616297A (en) |
| JP (1) | JPS4824139B1 (en) |
| AT (1) | AT288106B (en) |
| BE (1) | BE738912A (en) |
| BR (1) | BR6912589D0 (en) |
| CH (1) | CH514685A (en) |
| CS (1) | CS177018B2 (en) |
| DE (1) | DE1947671C3 (en) |
| DK (1) | DK132767C (en) |
| ES (1) | ES371568A1 (en) |
| FI (1) | FI47117C (en) |
| FR (1) | FR2018630A1 (en) |
| GB (1) | GB1216440A (en) |
| IE (1) | IE33554B1 (en) |
| IL (1) | IL32946A (en) |
| LU (1) | LU59436A1 (en) |
| NL (1) | NL146543B (en) |
| NO (1) | NO123953C (en) |
| SE (1) | SE346124C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5144491B2 (en) * | 1971-10-28 | 1976-11-29 | ||
| CA1032107A (en) * | 1973-03-20 | 1978-05-30 | Tadashi Hirokane | Process for electrolytic coloring of aluminum or aluminum alloy articles |
| JPS5339865B2 (en) * | 1973-08-24 | 1978-10-24 | ||
| JPS547267B2 (en) * | 1973-09-21 | 1979-04-05 | ||
| JPS578196B2 (en) * | 1973-10-20 | 1982-02-15 | ||
| CH581706A5 (en) * | 1973-11-09 | 1976-11-15 | Alusuisse | |
| US4894127A (en) * | 1989-05-24 | 1990-01-16 | The Boeing Company | Method for anodizing aluminum |
| ATE272731T1 (en) * | 2000-05-24 | 2004-08-15 | Fujikura Ltd | FAR INFRARED HEATING AND PRODUCTION METHOD THEREOF |
-
1968
- 1968-09-23 US US761717A patent/US3616297A/en not_active Expired - Lifetime
-
1969
- 1969-08-29 IE IE1221/69A patent/IE33554B1/en unknown
- 1969-09-04 GB GB43929/69A patent/GB1216440A/en not_active Expired
- 1969-09-04 IL IL32946A patent/IL32946A/en unknown
- 1969-09-05 NO NO3568/69A patent/NO123953C/no unknown
- 1969-09-09 CS CS6150A patent/CS177018B2/cs unknown
- 1969-09-11 NL NL696913865A patent/NL146543B/en not_active IP Right Cessation
- 1969-09-12 LU LU59436D patent/LU59436A1/xx unknown
- 1969-09-15 FI FI692634A patent/FI47117C/en active
- 1969-09-15 FR FR6931350A patent/FR2018630A1/fr not_active Withdrawn
- 1969-09-16 ES ES371568A patent/ES371568A1/en not_active Expired
- 1969-09-16 BE BE738912D patent/BE738912A/xx unknown
- 1969-09-17 CH CH1406169A patent/CH514685A/en not_active IP Right Cessation
- 1969-09-18 AT AT885869A patent/AT288106B/en not_active IP Right Cessation
- 1969-09-19 DE DE1947671A patent/DE1947671C3/en not_active Expired
- 1969-09-22 DK DK503269A patent/DK132767C/en active
- 1969-09-22 SE SE6912985A patent/SE346124C/xx unknown
- 1969-09-22 BR BR212589/69A patent/BR6912589D0/en unknown
- 1969-09-24 JP JP44075348A patent/JPS4824139B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1947671A1 (en) | 1970-04-23 |
| NL6913865A (en) | 1970-03-25 |
| BE738912A (en) | 1970-03-16 |
| IL32946A (en) | 1973-05-31 |
| JPS4824139B1 (en) | 1973-07-19 |
| FI47117C (en) | 1973-09-10 |
| US3616297A (en) | 1971-10-26 |
| FI47117B (en) | 1973-05-31 |
| IL32946A0 (en) | 1969-11-30 |
| IE33554L (en) | 1970-03-23 |
| DE1947671B2 (en) | 1975-04-03 |
| AT288106B (en) | 1971-02-25 |
| LU59436A1 (en) | 1970-01-08 |
| NO123953C (en) | 1977-02-04 |
| FR2018630A1 (en) | 1970-06-26 |
| DK132767B (en) | 1976-02-02 |
| SE346124C (en) | 1975-10-06 |
| DE1947671C3 (en) | 1975-11-13 |
| BR6912589D0 (en) | 1973-06-12 |
| ES371568A1 (en) | 1971-11-01 |
| CS177018B2 (en) | 1977-07-29 |
| CH514685A (en) | 1971-10-31 |
| SE346124B (en) | 1972-06-26 |
| IE33554B1 (en) | 1974-08-07 |
| NL146543B (en) | 1975-07-15 |
| NO123953B (en) | 1972-02-07 |
| DK132767C (en) | 1976-07-05 |
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