GB894261A - Treating oxide-coated aluminium surfaces - Google Patents

Treating oxide-coated aluminium surfaces

Info

Publication number
GB894261A
GB894261A GB14106/60A GB1410660A GB894261A GB 894261 A GB894261 A GB 894261A GB 14106/60 A GB14106/60 A GB 14106/60A GB 1410660 A GB1410660 A GB 1410660A GB 894261 A GB894261 A GB 894261A
Authority
GB
United Kingdom
Prior art keywords
treating
aluminium surfaces
solution
cohn
sodium silicate
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
GB14106/60A
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.)
SAMUEL LENARD COHN
Original Assignee
SAMUEL LENARD COHN
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 SAMUEL LENARD COHN filed Critical SAMUEL LENARD COHN
Publication of GB894261A publication Critical patent/GB894261A/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
    • C25D11/246—Chemical after-treatment for sealing layers
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

894,261. Seating anodized aluminium surfaces. COHN, C. C., and COHN, S. L., [trading as COLONIAL ALLOYS CO.]. April 21, 1960 [Aug. 26, 1959], No. 14106/60. Class 41. Anodized aluminium surfaces are sealed and rendered resistant to corrosion, by first treating with a solution containing a salt of a weak metallic base, whereby an insoluble metal compound is deposited on the oxide coating, and then treating with sodium silicate solution, preferably having an SiO2: Na2O content ratio of at least 2 : 1. The metal salts are preferably nickel or cobalt acetate, and used at a pH of 4.5 to 7.5 and above 40‹ C. The anodized surface may be first dyed. The final coating may be further treated with acid or an alkali, preferably dilute NaOH or H3PO4. The anodizing step may be effected by any method, e.g. H2O4. The treatment with sodium silicate solution may be electrolytic or by dipping into the solution. Specification 413,814 and U.S.A. Specifications 1,946,153 and 2,161,636 are referred to.
GB14106/60A 1959-08-26 1960-04-21 Treating oxide-coated aluminium surfaces Expired GB894261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US894261XA 1959-08-26 1959-08-26

Publications (1)

Publication Number Publication Date
GB894261A true GB894261A (en) 1962-04-18

Family

ID=22217570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14106/60A Expired GB894261A (en) 1959-08-26 1960-04-21 Treating oxide-coated aluminium surfaces

Country Status (2)

Country Link
FR (1) FR1262541A (en)
GB (1) GB894261A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385819A1 (en) * 1977-03-30 1978-10-27 Yoshida Kogyo Kk METHOD FOR THE MANUFACTURE OF A COATING FILM ON AN ANODIZED AND CORROSION-RESISTANT SURFACE FILM OF ALUMINUM ARTICLES
US7235142B2 (en) 2002-01-04 2007-06-26 University Of Dayton Non-toxic corrosion-protection rinses and seals based on cobalt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009045762A1 (en) * 2009-10-16 2011-04-21 Henkel Ag & Co. Kgaa Multi-stage process for the production of alkali-resistant anodized aluminum surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385819A1 (en) * 1977-03-30 1978-10-27 Yoshida Kogyo Kk METHOD FOR THE MANUFACTURE OF A COATING FILM ON AN ANODIZED AND CORROSION-RESISTANT SURFACE FILM OF ALUMINUM ARTICLES
US7235142B2 (en) 2002-01-04 2007-06-26 University Of Dayton Non-toxic corrosion-protection rinses and seals based on cobalt

Also Published As

Publication number Publication date
FR1262541A (en) 1961-05-26

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