GB504216A - Process for the production of protective layers on aluminium or aluminium base alloys or magnesium or magnesium base alloys - Google Patents
Process for the production of protective layers on aluminium or aluminium base alloys or magnesium or magnesium base alloysInfo
- Publication number
- GB504216A GB504216A GB4635/38A GB463538A GB504216A GB 504216 A GB504216 A GB 504216A GB 4635/38 A GB4635/38 A GB 4635/38A GB 463538 A GB463538 A GB 463538A GB 504216 A GB504216 A GB 504216A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesium
- aluminium
- base alloys
- per cent
- protective layers
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Chemical Treatment Of Metals (AREA)
- Prevention Of Electric Corrosion (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Electroplating Methods And Accessories (AREA)
- Domestic Plumbing Installations (AREA)
- Chemically Coating (AREA)
- ing And Chemical Polishing (AREA)
Abstract
504,216. Electrolytic surface treatment of magnesium and aluminium and their alloys. MAGNESIUM ELEKTRON, Ltd. Feb. 15, 1938, No. 4635. Convention date, Sept. 22, 1937. [Class 41] [Also in Group II] Protective layers are produced on aluminium or aluminium base alloys or magnesium or magnesium base alloys by anodic treatment in an aqueous solution containing fluorides of potassium and ammonium singly or in admixture, the solubility of which in water at room temperature is at least about 30 per cent, together with a primary, secondary or tertiary (preferably secondary) phosphate of potassium and/or ammonium, the concentration of the salt mixture lying between 200 gme. /lit. and saturation point, preferably between 700 and 500gms./lit. The ratio of fluoride to phosphate may range between 1 : 9 and 9: 1. An initial current density of 6-10 amps. per sq. dem. is employed. Examples of the treatment of an alloy containing 98À5 per cent of magnesium and 1À5 per cent of manganese and of an alloy containing 95 per cent of aluminium and 5 per cent of magnesium are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE504216X | 1937-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB504216A true GB504216A (en) | 1939-04-21 |
Family
ID=6546161
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4635/38A Expired GB504216A (en) | 1937-09-22 | 1938-02-15 | Process for the production of protective layers on aluminium or aluminium base alloys or magnesium or magnesium base alloys |
| GB4633/38A Expired GB508723A (en) | 1937-09-22 | 1938-02-15 | Process for the production of protective layers on aluminium or aluminium alloys and magnesium or magnesium alloys |
| GB13006/39A Expired GB528234A (en) | 1937-09-22 | 1939-05-01 | Process for the production of protective layers on aluminium or aluminium alloys of magnesium or magnesium alloys |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4633/38A Expired GB508723A (en) | 1937-09-22 | 1938-02-15 | Process for the production of protective layers on aluminium or aluminium alloys and magnesium or magnesium alloys |
| GB13006/39A Expired GB528234A (en) | 1937-09-22 | 1939-05-01 | Process for the production of protective layers on aluminium or aluminium alloys of magnesium or magnesium alloys |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE440323A (en) |
| CH (3) | CH207208A (en) |
| DE (4) | DE660409C (en) |
| FR (2) | FR834050A (en) |
| GB (3) | GB504216A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE764929C (en) * | 1938-11-09 | 1954-04-05 | Bosch Gmbh Robert | Process for producing fluoride-containing protective layers on workpieces made of magnesium and its alloys |
| US2431595A (en) * | 1942-08-06 | 1947-11-25 | Aluminum Co Of America | Method for cleaning aluminum |
| NL170633B (en) * | 1951-07-04 | Hoechst Ag | PROCESS FOR PREPARING POLYMER DISPERSIONS WITH LOW MONOMER CONTENT. | |
| DE1021229B (en) * | 1953-05-19 | 1957-12-19 | Magnesium Elektron Ltd | Application of the anodic treatment of alloys based on magnesium for the removal of molding sand contamination on castings made from such alloys |
| US3620939A (en) * | 1969-03-17 | 1971-11-16 | Us Army | Coating for magnesium and its alloys and method of applying |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1933301A (en) * | 1931-01-23 | 1933-10-31 | Gen Electric | Process for the treatment of metals |
| DE635720C (en) * | 1935-06-01 | 1936-09-25 | Siemens & Halske Akt Ges | Process for the production of protective coatings on magnesium and its alloys |
-
1937
- 1937-02-26 DE DEI57219D patent/DE660409C/en not_active Expired
- 1937-04-14 DE DEI57694D patent/DE661937C/en not_active Expired
- 1937-09-23 DE DEI59127D patent/DE743527C/en not_active Expired
-
1938
- 1938-02-03 CH CH207208D patent/CH207208A/en unknown
- 1938-02-03 CH CH207210D patent/CH207210A/en unknown
- 1938-02-15 GB GB4635/38A patent/GB504216A/en not_active Expired
- 1938-02-15 GB GB4633/38A patent/GB508723A/en not_active Expired
- 1938-02-21 FR FR834050D patent/FR834050A/en not_active Expired
- 1938-06-29 DE DE1938I0061747 patent/DE690603C/en not_active Expired
-
1939
- 1939-05-01 GB GB13006/39A patent/GB528234A/en not_active Expired
- 1939-05-05 FR FR50606D patent/FR50606E/en not_active Expired
- 1939-05-08 CH CH215595D patent/CH215595A/en unknown
-
1941
- 1941-01-16 BE BE440323D patent/BE440323A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE660409C (en) | 1938-05-24 |
| DE690603C (en) | 1940-04-30 |
| FR834050A (en) | 1938-11-09 |
| BE440323A (en) | 1941-02-28 |
| CH207210A (en) | 1939-10-15 |
| DE743527C (en) | 1944-03-31 |
| GB508723A (en) | 1939-07-05 |
| GB528234A (en) | 1940-10-24 |
| DE661937C (en) | 1938-06-30 |
| CH207208A (en) | 1939-10-15 |
| FR50606E (en) | 1941-01-27 |
| CH215595A (en) | 1941-06-30 |
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