GB1434701A - Process and apparatus for electrolytic colouration of anodised aluminium - Google Patents

Process and apparatus for electrolytic colouration of anodised aluminium

Info

Publication number
GB1434701A
GB1434701A GB780774A GB780774A GB1434701A GB 1434701 A GB1434701 A GB 1434701A GB 780774 A GB780774 A GB 780774A GB 780774 A GB780774 A GB 780774A GB 1434701 A GB1434701 A GB 1434701A
Authority
GB
United Kingdom
Prior art keywords
strip
anodized
bath
superimposed
anodizing
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
GB780774A
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.)
Alcan Research and Development Ltd
Original Assignee
Alcan Research and Development 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 Alcan Research and Development Ltd filed Critical Alcan Research and Development Ltd
Priority to GB780774A priority Critical patent/GB1434701A/en
Priority to ZA00750855A priority patent/ZA75855B/en
Priority to AU78132/75A priority patent/AU492058B2/en
Priority to BE153424A priority patent/BE825619A/en
Priority to IT20383/75A priority patent/IT1031829B/en
Priority to FR7504963A priority patent/FR2261353B1/fr
Priority to NO750565A priority patent/NO139447C/en
Priority to BR1022/75A priority patent/BR7501022A/en
Priority to CH207575A priority patent/CH597375A5/xx
Priority to CA220,430A priority patent/CA1100087A/en
Priority to JP2078975A priority patent/JPS5629759B2/ja
Priority to DE2507063A priority patent/DE2507063C3/en
Priority to SE7501837A priority patent/SE408310B/en
Priority to ES434852A priority patent/ES434852A1/en
Priority to DK61175*#A priority patent/DK61175A/da
Priority to NLAANVRAGE7502023,A priority patent/NL168889C/en
Publication of GB1434701A publication Critical patent/GB1434701A/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
    • C25D11/20—Electrolytic after-treatment
    • C25D11/22—Electrolytic after-treatment for colouring 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
    • C25D11/005—Apparatus specially adapted for electrolytic conversion coating

Abstract

1434701 Colouring anodized aluminium electrolytically ALCAN RESEARCH & DEVELOPMENT Ltd 19 Feb 1975 [20 Feb 1974] 7807/74 Heading C7B In the continuous electrolytic coloration of anodized Al strip using an acid electrolyte bath containing a manganate, tellurite or selenite or at least one salt of Co, Cu, Ni, Fe, Ag, Sn, Cr or Pb, by passing current between the strip and an electrode immersed in the bath and facing an anodized surface of the strip, the current is introduced into the strip through an unanodized area thereof. In Fig. 1, the strip is D.C. anodized (in e.g. H 2 SO 4 , oxalic acid or chromic acid) in cell 1 which contains immersed anodic and cathodic electrodes 4. After washing at 6, the strip is A.C. coloured in cell 7 using immersed electrodes 8, which connect to the strip via A.C. supply 9 and the anodizing anodes 4. Conductor 10 may either be replaced by variable resistance to give variable superimposed D.C. in the colouring bath, or may be removed, so removing the superimposed D.C. An alternative arrangement uses an external contact roller before the anodizing bath to introduce both the A.C. and D.C. Instead of superimposed D.C., an asymmetrical A.C. supply may be used. When the Al is anodized on one side only, either the process can be conducted on an already anodized strip, or the current can be introduced from an anodic sliding block contact, e.g. of graphite, in the anodizing bath. Electrolytes exemplified contain (1) NiSO 4 , (NH 4 ) 2 SO 4 , MgSO 4 and H 3 BO 3 at pH 5À7 or (2) CuSO 4 , MgSO 4 and H 2 SO 4 at pH 1À3.
GB780774A 1974-02-20 1974-02-20 Process and apparatus for electrolytic colouration of anodised aluminium Expired GB1434701A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
GB780774A GB1434701A (en) 1974-02-20 1974-02-20 Process and apparatus for electrolytic colouration of anodised aluminium
ZA00750855A ZA75855B (en) 1974-02-20 1975-02-11 Process and apparatus for electrolytic colouration of anodised aluminium
AU78132/75A AU492058B2 (en) 1974-02-20 1975-02-12 Process and apparatus for electrolytic colouration of anodised aluminium
BE153424A BE825619A (en) 1974-02-20 1975-02-17 ANODIZED ALUMINUM COLORING
IT20383/75A IT1031829B (en) 1974-02-20 1975-02-18 PROCEDURE AND APPARATUS FOR THE FLETTROLYTIC COLORING OF ANODISED ALUMINUM
FR7504963A FR2261353B1 (en) 1974-02-20 1975-02-18
NO750565A NO139447C (en) 1974-02-20 1975-02-19 PROCEDURE FOR MAKING A COLORED, ANODIZED ALUMINUM BAND
BR1022/75A BR7501022A (en) 1974-02-20 1975-02-19 PROCESS FOR THE PRODUCTION OF COLORED ANODIZED ALUMINUM
CH207575A CH597375A5 (en) 1974-02-20 1975-02-19
CA220,430A CA1100087A (en) 1974-02-20 1975-02-19 Process and apparatus for electrolytic colouration of anodised aluminium
JP2078975A JPS5629759B2 (en) 1974-02-20 1975-02-19
DE2507063A DE2507063C3 (en) 1974-02-20 1975-02-19 Process for the production of colored, anodized aluminum in strip form
SE7501837A SE408310B (en) 1974-02-20 1975-02-19 PROCEDURE FOR THE MANUFACTURE OF FERGAT, ANODIZED ALUMINUM IN BAND FORM
ES434852A ES434852A1 (en) 1974-02-20 1975-02-19 Process and apparatus for electrolytic colouration of anodised aluminium
DK61175*#A DK61175A (en) 1974-02-20 1975-02-19
NLAANVRAGE7502023,A NL168889C (en) 1974-02-20 1975-02-20 METHOD FOR PRODUCING COLORED ANODIZED ALUMINUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB780774A GB1434701A (en) 1974-02-20 1974-02-20 Process and apparatus for electrolytic colouration of anodised aluminium

Publications (1)

Publication Number Publication Date
GB1434701A true GB1434701A (en) 1976-05-05

Family

ID=9840126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB780774A Expired GB1434701A (en) 1974-02-20 1974-02-20 Process and apparatus for electrolytic colouration of anodised aluminium

Country Status (15)

Country Link
JP (1) JPS5629759B2 (en)
BE (1) BE825619A (en)
BR (1) BR7501022A (en)
CA (1) CA1100087A (en)
CH (1) CH597375A5 (en)
DE (1) DE2507063C3 (en)
DK (1) DK61175A (en)
ES (1) ES434852A1 (en)
FR (1) FR2261353B1 (en)
GB (1) GB1434701A (en)
IT (1) IT1031829B (en)
NL (1) NL168889C (en)
NO (1) NO139447C (en)
SE (1) SE408310B (en)
ZA (1) ZA75855B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268057A (en) * 2017-06-14 2017-10-20 江苏昊科汽车空调有限公司 A kind of Hard Anodic Oxidation of Aluminum Alloy electrolyte maintenance method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518979A (en) * 1974-11-19 1978-07-26 Sumitomo Aluminium Smelting Co Process for continuous electrolytic colouring of almuminium or aluminum base alloy strip and wire
FR2542766B1 (en) * 1983-03-16 1987-07-03 Cegedur METHOD AND DEVICE FOR ELECTROCHEMICAL TREATMENT OF THE SURFACE OF METALLIC PRODUCTS OF ELONGATE FORM
JPS59219669A (en) * 1983-05-27 1984-12-11 松下精工株式会社 Heat pump air conditioner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR901105A (en) * 1943-06-11 1945-07-18 Alais & Froges & Camarque Cie Process for the continuous electrolytic oxidation of metal wires, bands and the like
US2755238A (en) * 1955-03-25 1956-07-17 Sprague Electric Co Electrolytic etching and oxidizing of aluminum
DE1902983C3 (en) * 1968-06-21 1978-06-22 Keller, Eberhard, 7121 Freudental Process for the electrolytic coloring of anodic oxide layers on aluminum or aluminum alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268057A (en) * 2017-06-14 2017-10-20 江苏昊科汽车空调有限公司 A kind of Hard Anodic Oxidation of Aluminum Alloy electrolyte maintenance method
CN107268057B (en) * 2017-06-14 2023-07-04 江苏昊科汽车空调有限公司 Maintenance method for aluminum alloy hard anodic oxidation electrolyte

Also Published As

Publication number Publication date
DE2507063C3 (en) 1984-08-23
ES434852A1 (en) 1977-03-01
DK61175A (en) 1975-10-20
NO139447C (en) 1979-03-14
BE825619A (en) 1975-08-18
DE2507063A1 (en) 1975-08-21
JPS5629759B2 (en) 1981-07-10
CA1100087A (en) 1981-04-28
DE2507063B2 (en) 1978-03-30
FR2261353A1 (en) 1975-09-12
AU7813275A (en) 1976-08-12
NO139447B (en) 1978-12-04
BR7501022A (en) 1975-12-02
SE7501837L (en) 1975-08-21
IT1031829B (en) 1979-05-10
NL7502023A (en) 1975-08-22
NO750565L (en) 1975-08-21
FR2261353B1 (en) 1982-03-19
SE408310B (en) 1979-06-05
NL168889C (en) 1982-05-17
ZA75855B (en) 1976-01-28
JPS50119735A (en) 1975-09-19
CH597375A5 (en) 1978-03-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee