GB482563A - Process of protecting aluminium and its light alloys by electrolytic deposition - Google Patents

Process of protecting aluminium and its light alloys by electrolytic deposition

Info

Publication number
GB482563A
GB482563A GB18868/37A GB1886837A GB482563A GB 482563 A GB482563 A GB 482563A GB 18868/37 A GB18868/37 A GB 18868/37A GB 1886837 A GB1886837 A GB 1886837A GB 482563 A GB482563 A GB 482563A
Authority
GB
United Kingdom
Prior art keywords
potassium
acid
bath
aluminium
salts
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
GB18868/37A
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.)
ALI GHOLAM CHAYBANY
Original Assignee
ALI GHOLAM CHAYBANY
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 ALI GHOLAM CHAYBANY filed Critical ALI GHOLAM CHAYBANY
Publication of GB482563A publication Critical patent/GB482563A/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

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)

Abstract

482,563. Anodic treatment of aluminium and its light alloys. CHAYBANY, A. G. July 7, 1937, No. 18868. Convention date, July 7,1936. [Class 41] The surface of an article of aluminium or a light alloy thereof is anodically oxidized in a bath consisting of a saturated aqueous solution of an alkali salt of a mineral acid in contact with an excess of said salts in the solid state. Salts used are the acid sulphates or acid phosphates or acid fluosilicates or acid fluoborates of sodium, potassium or ammonium ; or the sodium, potassium or ammonium alums of aluminium, chromium or iron ; or mixtures of these salts, e.g. potassium hydrogen sulphate and (a) potassium alum or (b) potassium fluosilicate. The anodizing may take place in two or more operations and in two or more different baths, e.g. first in a potassium hydrogen sulphate bath and then in a potassium hydrogen fluosilicate bath, or vice versa. The bath may contain an " acidic polishing economizer," e.g. formol, for increasing the permeability of the coating to oils, varnishes, or ethyl or methyl alcohol or acetone for preventing the liquid from remaining in a state of super-saturation.
GB18868/37A 1936-07-07 1937-07-07 Process of protecting aluminium and its light alloys by electrolytic deposition Expired GB482563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808903T 1936-07-07

Publications (1)

Publication Number Publication Date
GB482563A true GB482563A (en) 1938-03-31

Family

ID=9253233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18868/37A Expired GB482563A (en) 1936-07-07 1937-07-07 Process of protecting aluminium and its light alloys by electrolytic deposition

Country Status (3)

Country Link
BE (1) BE422490A (en)
FR (1) FR808903A (en)
GB (1) GB482563A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435714A (en) * 1942-09-28 1948-02-10 Bendix Aviat Corp Electrochemical salvaging method
US3787298A (en) * 1971-08-09 1974-01-22 Ethyl Corp Anodizing aluminum foams

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435714A (en) * 1942-09-28 1948-02-10 Bendix Aviat Corp Electrochemical salvaging method
US3787298A (en) * 1971-08-09 1974-01-22 Ethyl Corp Anodizing aluminum foams

Also Published As

Publication number Publication date
BE422490A (en)
FR808903A (en) 1937-02-18

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