FR2077778A1 - Blue al articles prodn - Google Patents

Blue al articles prodn

Info

Publication number
FR2077778A1
FR2077778A1 FR7005188A FR7005188A FR2077778A1 FR 2077778 A1 FR2077778 A1 FR 2077778A1 FR 7005188 A FR7005188 A FR 7005188A FR 7005188 A FR7005188 A FR 7005188A FR 2077778 A1 FR2077778 A1 FR 2077778A1
Authority
FR
France
Prior art keywords
blue
colour
contg
prodn
articles
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.)
Withdrawn
Application number
FR7005188A
Other languages
French (fr)
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.)
Cegedur Societe de Transformation de lAluminium Pechiney SA
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
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 Cegedur Societe de Transformation de lAluminium Pechiney SA filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Priority to FR7005188A priority Critical patent/FR2077778A1/en
Priority to IT2038771A priority patent/IT983099B/en
Priority to AU25338/71A priority patent/AU2533871A/en
Priority to NL7101811A priority patent/NL7101811A/xx
Priority to DE19712106389 priority patent/DE2106389A1/en
Priority to BE762875A priority patent/BE762875R/en
Priority to CH208871A priority patent/CH529844A/en
Publication of FR2077778A1 publication Critical patent/FR2077778A1/en
Withdrawn legal-status Critical Current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
    • 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
    • C25D11/20—Electrolytic after-treatment
    • C25D11/22—Electrolytic after-treatment for colouring layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Al alloys that have been anodised and subsequently coloured blue may retain this colouration on hydrolysis. The colour is imparted by immersion of object in bath contg. salt of heavy metal, e.g. CuSO4, and by electrolysis in alternating current. The object is then plunged into an aqs. boiling soln. contg. between 0.1 and 1 gm/l of alkaline metal silicate, e.g. Na2SiO3. Treatment time is between 1 and 45 mins. Conventional hydrolysing treatments have a tendency to degrade the blue colour.
FR7005188A 1970-02-13 1970-02-13 Blue al articles prodn Withdrawn FR2077778A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7005188A FR2077778A1 (en) 1970-02-13 1970-02-13 Blue al articles prodn
IT2038771A IT983099B (en) 1970-02-13 1971-02-10 PROCEDURE FOR FIXING A BLUE TINT ON ALUMINUM OBJECTS
AU25338/71A AU2533871A (en) 1970-02-13 1971-02-11 Process for fixing a blue colour on aluminium objects
NL7101811A NL7101811A (en) 1970-02-13 1971-02-11
DE19712106389 DE2106389A1 (en) 1970-02-13 1971-02-11 Blue al articles prodn
BE762875A BE762875R (en) 1970-02-13 1971-02-12 PROCESS FOR OBTAINING COLORED ALUMINUM OBJECTS
CH208871A CH529844A (en) 1970-02-13 1971-02-12 Process for obtaining a colored aluminum alloy part on the surface of a blue tint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7005188A FR2077778A1 (en) 1970-02-13 1970-02-13 Blue al articles prodn

Publications (1)

Publication Number Publication Date
FR2077778A1 true FR2077778A1 (en) 1971-11-05

Family

ID=9050606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7005188A Withdrawn FR2077778A1 (en) 1970-02-13 1970-02-13 Blue al articles prodn

Country Status (3)

Country Link
AU (1) AU2533871A (en)
FR (1) FR2077778A1 (en)
IT (1) IT983099B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314273A1 (en) * 1975-06-10 1977-01-07 Keller Eberhard Colouring anodically oxidised aluminium - after electrochemical colouring, by immersion in silicon- or phosphorus heteropolyacids of molybdenum or tungsten
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314273A1 (en) * 1975-06-10 1977-01-07 Keller Eberhard Colouring anodically oxidised aluminium - after electrochemical colouring, by immersion in silicon- or phosphorus heteropolyacids of molybdenum or tungsten
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

Also Published As

Publication number Publication date
AU2533871A (en) 1972-08-17
IT983099B (en) 1974-10-31

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Legal Events

Date Code Title Description
ST Notification of lapse