GB1150882A - Anodising Treatment For Aluminium And Its Alloys - Google Patents

Anodising Treatment For Aluminium And Its Alloys

Info

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
Application number
GB29940/65A
Inventor
Peter Geoffrey Sheasby
Edward Percival Short
Roman Dominik Guminski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcan Research and Development Ltd
Original Assignee
Alcan Research and Development Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcan Research and Development Ltd filed Critical Alcan Research and Development Ltd
Priority to GB29940/65A priority Critical patent/GB1150882A/en
Priority to US563691A priority patent/US3468772A/en
Priority to DE1496718A priority patent/DE1496718C3/en
Priority to SE09579/66A priority patent/SE338220B/xx
Priority to FR69317A priority patent/FR1486679A/en
Priority to JP41045723A priority patent/JPS5012379B1/ja
Publication of GB1150882A publication Critical patent/GB1150882A/en
Expired legal-status Critical Current

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.
GB29940/65A 1965-07-14 1965-07-14 Anodising Treatment For Aluminium And Its Alloys Expired GB1150882A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
SE338220B (en) 1971-08-30
JPS5012379B1 (en) 1975-05-12
DE1496718A1 (en) 1969-09-25
DE1496718B2 (en) 1971-11-25
DE1496718C3 (en) 1974-05-09
US3468772A (en) 1969-09-23

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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