GB528234A - Process for the production of protective layers on aluminium or aluminium alloys of magnesium or magnesium alloys - Google Patents

Process for the production of protective layers on aluminium or aluminium alloys of magnesium or magnesium alloys

Info

Publication number
GB528234A
GB528234A GB13006/39A GB1300639A GB528234A GB 528234 A GB528234 A GB 528234A GB 13006/39 A GB13006/39 A GB 13006/39A GB 1300639 A GB1300639 A GB 1300639A GB 528234 A GB528234 A GB 528234A
Authority
GB
United Kingdom
Prior art keywords
magnesium
aluminium
alloys
solution
added
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
GB13006/39A
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.)
Magnesium Elektron Ltd
Original Assignee
Magnesium Elektron 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 Magnesium Elektron Ltd filed Critical Magnesium Elektron Ltd
Publication of GB528234A publication Critical patent/GB528234A/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

Abstract

528,234. Anodic coating of aluminium and magnesium. MAGNESIUM ELEKTRON, Ltd., May 1, 1939, No. 13006. Convention date, June 28, 1938. Addition to 508,723. [Class 41] Aluminium and aluminium base alloys and magnesium and magnesium base alloys are provided with protective coatings by anodic treatment in a saturated or almost saturated solution of one or more neutral fluorides and/or one or more silicofluorides, the solubility of the single salt or mixture being, at least about 30 per cent. at 20‹C., to which is added a solution of substances capable of forming complex or additive compounds with the fluoride layer. Suitable additions comprise the water-soluble salts of titanium, tungsten, molybdenum, vanadium, beryllium and zirconium. To prevent hydrolytic dissociation of these compounds small' amounts of an organic acid, preferably polybasic, such as citric, tartaric or oxalic acid, or of a solution of sodium fluoride may be added.
GB13006/39A 1937-09-22 1939-05-01 Process for the production of protective layers on aluminium or aluminium alloys of magnesium or magnesium alloys Expired GB528234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE504216X 1937-09-22

Publications (1)

Publication Number Publication Date
GB528234A true GB528234A (en) 1940-10-24

Family

ID=6546161

Family Applications (3)

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
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
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 Before (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
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

Country Status (5)

Country Link
BE (1) BE440323A (en)
CH (3) CH207210A (en)
DE (4) DE660409C (en)
FR (2) FR834050A (en)
GB (3) GB508723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620939A (en) * 1969-03-17 1971-11-16 Us Army Coating for magnesium and its alloys and method of applying

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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
BE512440A (en) * 1951-07-04
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620939A (en) * 1969-03-17 1971-11-16 Us Army Coating for magnesium and its alloys and method of applying

Also Published As

Publication number Publication date
GB508723A (en) 1939-07-05
DE743527C (en) 1944-03-31
BE440323A (en) 1941-02-28
DE661937C (en) 1938-06-30
FR834050A (en) 1938-11-09
CH215595A (en) 1941-06-30
FR50606E (en) 1941-01-27
GB504216A (en) 1939-04-21
CH207210A (en) 1939-10-15
DE660409C (en) 1938-05-24
DE690603C (en) 1940-04-30
CH207208A (en) 1939-10-15

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