GB412205A - Improvements in and relating to the anodic coating of aluminium and aluminium alloys - Google Patents

Improvements in and relating to the anodic coating of aluminium and aluminium alloys

Info

Publication number
GB412205A
GB412205A GB1696734A GB1696734A GB412205A GB 412205 A GB412205 A GB 412205A GB 1696734 A GB1696734 A GB 1696734A GB 1696734 A GB1696734 A GB 1696734A GB 412205 A GB412205 A GB 412205A
Authority
GB
United Kingdom
Prior art keywords
aluminium
relating
alloys
introduction
solution
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
GB1696734A
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.)
ERNEST WINDSOR - BOWEN
Original Assignee
ERNEST WINDSOR - BOWEN
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 ERNEST WINDSOR - BOWEN filed Critical ERNEST WINDSOR - BOWEN
Publication of GB412205A publication Critical patent/GB412205A/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
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)

Abstract

Oxide films formed on aluminium or its alloys by chemical or electro-chemical treatment are further treated to render them white by introduction of barium sulphate into or in intimate association therewith; this may be done by impregnating the film with a solution of barium sulphide and then subjecting it to oxidation, for example, by means of hydrogen peroxide. The films may be treated in a solution of tannic acid before impregnation. After introduction of the barium sulphate they may be oiled and waxed and lightly buffed Specifications 290,901, 290,903, [both in Class 41], 395,390 and 396,743, [both in Group XXXVI], are referred to.
GB1696734A 1932-09-16 1932-09-16 Improvements in and relating to the anodic coating of aluminium and aluminium alloys Expired GB412205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2574432A GB412193A (en) 1932-09-16 1932-09-16 Improvements in and relating the anodic coating of aluminium and aluminium alloys

Publications (1)

Publication Number Publication Date
GB412205A true GB412205A (en) 1934-06-18

Family

ID=10232566

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1696734A Expired GB412205A (en) 1932-09-16 1932-09-16 Improvements in and relating to the anodic coating of aluminium and aluminium alloys
GB2574432A Expired GB412193A (en) 1932-09-16 1932-09-16 Improvements in and relating the anodic coating of aluminium and aluminium alloys

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2574432A Expired GB412193A (en) 1932-09-16 1932-09-16 Improvements in and relating the anodic coating of aluminium and aluminium alloys

Country Status (1)

Country Link
GB (2) GB412205A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533592A1 (en) * 1982-09-24 1984-03-30 Pilot Pen Co Ltd PROCESS FOR THE SURFACE TREATMENT OF ALUMINUM OR ITS ALLOYS BY IMMERSION OR ELECTROLYSIS IN TWO SUCCESSIVE SOLUTIONS
GB2146043A (en) * 1983-07-15 1985-04-11 Pilot Pen Co Ltd Treating anodized aluminium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533592A1 (en) * 1982-09-24 1984-03-30 Pilot Pen Co Ltd PROCESS FOR THE SURFACE TREATMENT OF ALUMINUM OR ITS ALLOYS BY IMMERSION OR ELECTROLYSIS IN TWO SUCCESSIVE SOLUTIONS
GB2129442A (en) * 1982-09-24 1984-05-16 Pilot Pen Co Ltd Colouring anodized aluminium or aluminium alloys
US4659439A (en) * 1982-09-24 1987-04-21 Pilot Man-Nen-Hitsu Kabushiki Kaisha Surface treatment of aluminum or aluminum alloys
GB2146043A (en) * 1983-07-15 1985-04-11 Pilot Pen Co Ltd Treating anodized aluminium
GB2146042A (en) * 1983-07-15 1985-04-11 Pilot Pen Co Ltd Treating anodized aluminium

Also Published As

Publication number Publication date
GB412193A (en) 1934-06-18

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