GB468685A - Improvements in and relating to the surface treatment of metal articles - Google Patents

Improvements in and relating to the surface treatment of metal articles

Info

Publication number
GB468685A
GB468685A GB3383835A GB3383835A GB468685A GB 468685 A GB468685 A GB 468685A GB 3383835 A GB3383835 A GB 3383835A GB 3383835 A GB3383835 A GB 3383835A GB 468685 A GB468685 A GB 468685A
Authority
GB
United Kingdom
Prior art keywords
treatment
oxide films
aluminium
absorption
relating
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
GB3383835A
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.)
British Aluminum Co Ltd
Original Assignee
British Aluminum Co 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 British Aluminum Co Ltd filed Critical British Aluminum Co Ltd
Priority to GB3383835A priority Critical patent/GB468685A/en
Publication of GB468685A publication Critical patent/GB468685A/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
    • C25D11/243—Chemical after-treatment using organic dyestuffs

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)

Abstract

The absorption of dyestuffs into anodic oxide films on aluminium or aluminium alloys is controlled by treating the oxide film with a weak aqueous solution of sodium or potassium mono-or di-hydrogen phosphate either prior to or simultaneously with the treatment with the dyestuff, the phosphate treatment being carried out at a temperature of between about 80 and 100 DEG C. The process is applicable only for those dyestuffs, e.g. Alizarine Red S or Anthracene Blue G.S.R., which can produce substantially permanent colours on aluminium oxide films without the use of a mordant. The Provisional Specification is not limited to the treatment of anodically produced oxide films and refers also to controlling the absorption of oils, fats, and waxes.
GB3383835A 1935-12-06 1935-12-06 Improvements in and relating to the surface treatment of metal articles Expired GB468685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3383835A GB468685A (en) 1935-12-06 1935-12-06 Improvements in and relating to the surface treatment of metal articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3383835A GB468685A (en) 1935-12-06 1935-12-06 Improvements in and relating to the surface treatment of metal articles

Publications (1)

Publication Number Publication Date
GB468685A true GB468685A (en) 1937-07-06

Family

ID=10358098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3383835A Expired GB468685A (en) 1935-12-06 1935-12-06 Improvements in and relating to the surface treatment of metal articles

Country Status (1)

Country Link
GB (1) GB468685A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463496A (en) * 1943-07-10 1949-03-01 Parker Rust Proof Co Accelerating phosphate coating with indigoid compounds
US2942415A (en) * 1954-11-29 1960-06-28 Bayard Gaston System for feeding gases into a starting turbine
US3099610A (en) * 1957-07-29 1963-07-30 Reynolds Metals Co Method of multi-coloring anodized aluminum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463496A (en) * 1943-07-10 1949-03-01 Parker Rust Proof Co Accelerating phosphate coating with indigoid compounds
US2942415A (en) * 1954-11-29 1960-06-28 Bayard Gaston System for feeding gases into a starting turbine
US3099610A (en) * 1957-07-29 1963-07-30 Reynolds Metals Co Method of multi-coloring anodized aluminum

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