FR2126273A1 - Electrolytic treatment for colouring anodized aluminium - - using direct and alternating current - Google Patents

Electrolytic treatment for colouring anodized aluminium - - using direct and alternating current

Info

Publication number
FR2126273A1
FR2126273A1 FR7205895A FR7205895A FR2126273A1 FR 2126273 A1 FR2126273 A1 FR 2126273A1 FR 7205895 A FR7205895 A FR 7205895A FR 7205895 A FR7205895 A FR 7205895A FR 2126273 A1 FR2126273 A1 FR 2126273A1
Authority
FR
France
Prior art keywords
electrolytic treatment
direct
alternating current
anodized aluminium
colouring
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.)
Granted
Application number
FR7205895A
Other languages
French (fr)
Other versions
FR2126273B1 (en
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.)
Aiden KK
Original Assignee
Aiden KK
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 Aiden KK filed Critical Aiden KK
Publication of FR2126273A1 publication Critical patent/FR2126273A1/en
Application granted granted Critical
Publication of FR2126273B1 publication Critical patent/FR2126273B1/fr
Granted 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
    • C25D11/20—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)
  • Spectrometry And Color Measurement (AREA)
  • Optical Filters (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The anodized layer on Al nd Al alloys is given a colour of uniform shade and depth by an electrolytic treatment using, alternately, d.c. at current density 0.2-2A/dm2 and a.c. of 1-5V. The anodized Al is made the cathode which is immersed in an acid electrolyte contg. a metal salt. The use of d.c. as well as a.c. prevents cracking of the anodized layer.
FR7205895A 1971-02-22 1972-02-22 Electrolytic treatment for colouring anodized aluminium - - using direct and alternating current Granted FR2126273A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP803271A JPS5014623B1 (en) 1971-02-22 1971-02-22

Publications (2)

Publication Number Publication Date
FR2126273A1 true FR2126273A1 (en) 1972-10-06
FR2126273B1 FR2126273B1 (en) 1977-01-21

Family

ID=11681980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7205895A Granted FR2126273A1 (en) 1971-02-22 1972-02-22 Electrolytic treatment for colouring anodized aluminium - - using direct and alternating current

Country Status (4)

Country Link
JP (1) JPS5014623B1 (en)
CA (1) CA973510A (en)
DE (1) DE2208315C3 (en)
FR (1) FR2126273A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52138433U (en) * 1976-04-13 1977-10-20
ES482210A0 (en) * 1979-07-04 1982-08-01 PROCESS FOR THE ELECTROLYTIC COLORATION OF A-NODIZED ALUMINUM.
CA1254485A (en) * 1984-06-20 1989-05-23 Walter F. Schlotman Faucet valve with check stop
DE3743113A1 (en) * 1987-12-18 1989-06-29 Gartner & Co J METHOD FOR ELECTROLYTICALLY CARBONIZING ANODICALLY PRODUCED OXIDIVE LAYERS ON ALUMINUM AND ALUMINUM ALLOYS

Also Published As

Publication number Publication date
DE2208315A1 (en) 1972-09-14
DE2208315B2 (en) 1973-10-25
JPS5014623B1 (en) 1975-05-29
CA973510A (en) 1975-08-26
DE2208315C3 (en) 1974-06-12
FR2126273B1 (en) 1977-01-21

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Legal Events

Date Code Title Description
ST Notification of lapse