GB539590A - Improvements in and relating to the surface treatment of aluminium and aluminium alloys - Google Patents
Improvements in and relating to the surface treatment of aluminium and aluminium alloysInfo
- Publication number
- GB539590A GB539590A GB494440A GB494440A GB539590A GB 539590 A GB539590 A GB 539590A GB 494440 A GB494440 A GB 494440A GB 494440 A GB494440 A GB 494440A GB 539590 A GB539590 A GB 539590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- alloys
- surface treatment
- immersion
- minutes
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Printing Plates And Materials Therefor (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
539,590. Surface treatment of aluminium and its alloys. BRITISH ALUMINIUM CO., Ltd., and PULLEN, A. N. D. March 16, 1940, No. 4944. [Class 41] The outer soft " smudge film formed on aluminium or its alloys, e.g. in electrolytic brightening as disclosed in Specification 449,162 is removed without using strong alkalies or solvents and without friction or rubbing methods, as by immersion in a solution such that the film peels off in small flakes, e.g. one containing sulphuric or other strong mineral acid, or oxalic acid &c. aluminium sulphate or other soluble aluminium salt, sodium or other fluoride &c. and gelatine, dextrine, pyridine, or quinoline &c. e.g. for 2-20 minutes. The treatment may be preceded by washing, and immersion in distilled water at 80‹ C. for 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB494440A GB539590A (en) | 1940-03-16 | 1940-03-16 | Improvements in and relating to the surface treatment of aluminium and aluminium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB494440A GB539590A (en) | 1940-03-16 | 1940-03-16 | Improvements in and relating to the surface treatment of aluminium and aluminium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB539590A true GB539590A (en) | 1941-09-17 |
Family
ID=9786796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB494440A Expired GB539590A (en) | 1940-03-16 | 1940-03-16 | Improvements in and relating to the surface treatment of aluminium and aluminium alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB539590A (en) |
-
1940
- 1940-03-16 GB GB494440A patent/GB539590A/en not_active Expired
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