GB1150882A - Anodising Treatment For Aluminium And Its Alloys - Google Patents
Anodising Treatment For Aluminium And Its AlloysInfo
- Publication number
- GB1150882A GB1150882A GB29940/65A GB2994065A GB1150882A GB 1150882 A GB1150882 A GB 1150882A GB 29940/65 A GB29940/65 A GB 29940/65A GB 2994065 A GB2994065 A GB 2994065A GB 1150882 A GB1150882 A GB 1150882A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- alloys
- current density
- oxalic acid
- july
- 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
- C25D11/14—Producing integrally coloured layers
Abstract
1,150,882. Colour-anodizing aluminium and its alloys. ALCAN RESEARCH & DEVELOPMENT Ltd. July 5, 1966 [July 14, 1965], No.29940/65. Heading C7B. Coloured anodic oxide coatings are produced on aluminium or its alloys by anodic treatment in an aqueous bath of which a major proportion is oxalic acid by using pulsed squarewave D.C., the ratio of anode peak current density to anode mean current density being at least 3:1. Typically the mean current density is 10 to 36 amps/ sq. ft. and the pulse frequency is 1¢ to 20 pulses per second. Examples are given of using saturated oxalic acid baths at 20 C. also of baths containing, in addition to oxalic acid, sulphuric or formic acids. For increasing the darkening of the film obtained on an aluminium alloy containing silicon and magnesium, the alloy is overaged by heat treatment before anodizing.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29940/65A GB1150882A (en) | 1965-07-14 | 1965-07-14 | Anodising Treatment For Aluminium And Its Alloys |
US563691A US3468772A (en) | 1965-07-14 | 1966-07-08 | Anodising treatment for aluminium |
DE1496718A DE1496718C3 (en) | 1965-07-14 | 1966-07-11 | Process for the anodic production of self-colored oxide coatings on aluminum and aluminum alloys |
SE09579/66A SE338220B (en) | 1965-07-14 | 1966-07-13 | |
FR69317A FR1486679A (en) | 1965-07-14 | 1966-07-13 | Anodic treatment of aluminum |
JP41045723A JPS5012379B1 (en) | 1965-07-14 | 1966-07-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29940/65A GB1150882A (en) | 1965-07-14 | 1965-07-14 | Anodising Treatment For Aluminium And Its Alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1150882A true GB1150882A (en) | 1969-05-07 |
Family
ID=10299688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29940/65A Expired GB1150882A (en) | 1965-07-14 | 1965-07-14 | Anodising Treatment For Aluminium And Its Alloys |
Country Status (5)
Country | Link |
---|---|
US (1) | US3468772A (en) |
JP (1) | JPS5012379B1 (en) |
DE (1) | DE1496718C3 (en) |
GB (1) | GB1150882A (en) |
SE (1) | SE338220B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0112439A2 (en) * | 1982-11-30 | 1984-07-04 | Electro Chemical Engineering GmbH | Process for the anodic oxidation of aluminium alloys |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5339865B2 (en) * | 1973-08-24 | 1978-10-24 | ||
JPS547267B2 (en) * | 1973-09-21 | 1979-04-05 | ||
US3930966A (en) * | 1974-03-20 | 1976-01-06 | Riken Light Metal Industries Company, Ltd. | Method of forming colored oxide film on aluminum or aluminum alloy |
JPS59148278U (en) * | 1983-03-22 | 1984-10-03 | マックス株式会社 | Pneumatic nailer safety device |
CN103343374B (en) * | 2013-07-09 | 2016-05-18 | 浙江苏泊尔股份有限公司 | A kind of hard anodize method of cast aluminium alloy workpiece |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1735286A (en) * | 1923-12-19 | 1929-11-12 | Zh Rikagaku Kenkyujo | Process of coating metallic aluminum or aluminum alloys with aluminum oxide skin |
BE514705A (en) * | 1951-06-25 | |||
US2920018A (en) * | 1957-04-22 | 1960-01-05 | Electro Chem Mfg Co Inc | Anodizing process and system |
-
1965
- 1965-07-14 GB GB29940/65A patent/GB1150882A/en not_active Expired
-
1966
- 1966-07-08 US US563691A patent/US3468772A/en not_active Expired - Lifetime
- 1966-07-11 DE DE1496718A patent/DE1496718C3/en not_active Expired
- 1966-07-13 SE SE09579/66A patent/SE338220B/xx unknown
- 1966-07-14 JP JP41045723A patent/JPS5012379B1/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0112439A2 (en) * | 1982-11-30 | 1984-07-04 | Electro Chemical Engineering GmbH | Process for the anodic oxidation of aluminium alloys |
EP0112439A3 (en) * | 1982-11-30 | 1986-11-05 | Electro Chemical Engineering Gmbh | Process for the anodic oxidation of aluminium alloys |
Also Published As
Publication number | Publication date |
---|---|
DE1496718A1 (en) | 1969-09-25 |
DE1496718B2 (en) | 1971-11-25 |
US3468772A (en) | 1969-09-23 |
SE338220B (en) | 1971-08-30 |
JPS5012379B1 (en) | 1975-05-12 |
DE1496718C3 (en) | 1974-05-09 |
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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 |