GB543726A - - Google Patents
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- Publication number
- GB543726A GB543726A GB543726DA GB543726A GB 543726 A GB543726 A GB 543726A GB 543726D A GB543726D A GB 543726DA GB 543726 A GB543726 A GB 543726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesium
- coatings
- voltage
- coating
- bath
- 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.)
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Abstract
543,726. Coating magnesium &c. HIGH DUTY ALLOYS, Ltd., and WHITBY, L. Nov. 15, 1940, No. 16536. [Class 41] Protective coatings are formed on magnesium and magnesium base alloys, following preliminary de-greasing, by electrolytic treatment with direct or with alternating current, the magnesium or alloy in the former instance being the anode at or above " spark potential" (about 60 volts) in alkaline solutions of high concentration, comprising for instance sodium carbonate, pyrophosphate, aluminate, or metasilicate and potassium fluoride, with or without a wetting-out agent such as turkey red oil or a sulphonated higher alcohol. The voltage may be raised to the spark point in stages. Carbon or mild steel cathodes are employed and the temperature of the bath is maintained at from 20 - 30‹ C. According to the voltage and the bath employed coatings capable of serving as bases for coating with paint, lacquer, rubber &c., or for receiving dyes, or hard resistant coatings may be obtained. The coatings may be impregnated with passivifying agents such as chromates. Specification 522,382 is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB543726A true GB543726A (en) |
Family
ID=1748479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB543726D Active GB543726A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB543726A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497036A (en) * | 1944-07-12 | 1950-02-07 | Cons Vultee Aircraft Corp | Coating magnesium and magnesium base alloys |
| US2723952A (en) * | 1952-11-03 | 1955-11-15 | Harry A Evangelides | Method of electrolytically coating magnesium and electrolyte therefor |
| US2778789A (en) * | 1954-06-02 | 1957-01-22 | Mcneill William | Electrolytic protective coating for magnesium |
| US2880148A (en) * | 1955-11-17 | 1959-03-31 | Harry A Evangelides | Method and bath for electrolytically coating magnesium |
| US2901409A (en) * | 1956-08-03 | 1959-08-25 | Dow Chemical Co | Anodizing magnesium |
| US3293158A (en) * | 1963-09-17 | 1966-12-20 | Mcneill William | Anodic spark reaction processes and articles |
| US4551211A (en) * | 1983-07-19 | 1985-11-05 | Ube Industries, Ltd. | Aqueous anodizing solution and process for coloring article of magnesium or magnesium-base alloy |
| US4668347A (en) * | 1985-12-05 | 1987-05-26 | The Dow Chemical Company | Anticorrosive coated rectifier metals and their alloys |
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- GB GB543726D patent/GB543726A/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497036A (en) * | 1944-07-12 | 1950-02-07 | Cons Vultee Aircraft Corp | Coating magnesium and magnesium base alloys |
| US2723952A (en) * | 1952-11-03 | 1955-11-15 | Harry A Evangelides | Method of electrolytically coating magnesium and electrolyte therefor |
| US2778789A (en) * | 1954-06-02 | 1957-01-22 | Mcneill William | Electrolytic protective coating for magnesium |
| US2880148A (en) * | 1955-11-17 | 1959-03-31 | Harry A Evangelides | Method and bath for electrolytically coating magnesium |
| US2901409A (en) * | 1956-08-03 | 1959-08-25 | Dow Chemical Co | Anodizing magnesium |
| US3293158A (en) * | 1963-09-17 | 1966-12-20 | Mcneill William | Anodic spark reaction processes and articles |
| US4551211A (en) * | 1983-07-19 | 1985-11-05 | Ube Industries, Ltd. | Aqueous anodizing solution and process for coloring article of magnesium or magnesium-base alloy |
| US4668347A (en) * | 1985-12-05 | 1987-05-26 | The Dow Chemical Company | Anticorrosive coated rectifier metals and their alloys |
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