IE33554L - Colouring anodised aluminium - Google Patents

Colouring anodised aluminium

Info

Publication number
IE33554L
IE33554L IE691221A IE122169A IE33554L IE 33554 L IE33554 L IE 33554L IE 691221 A IE691221 A IE 691221A IE 122169 A IE122169 A IE 122169A IE 33554 L IE33554 L IE 33554L
Authority
IE
Ireland
Prior art keywords
ions
niso
sept
hydroxide
maintained
Prior art date
Application number
IE691221A
Other versions
IE33554B1 (en
Original Assignee
Alcan Res & Dev
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 Res & Dev filed Critical Alcan Res & Dev
Publication of IE33554L publication Critical patent/IE33554L/en
Publication of IE33554B1 publication Critical patent/IE33554B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02Anodisation
    • C25D11/04Anodisation of aluminium or alloys based thereon
    • C25D11/18After-treatment, e.g. pore-sealing
    • C25D11/20Electrolytic after-treatment
    • C25D11/22Electrolytic 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)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

1,216,440. Colouring anodized aluminium. ALCAN RESEARCH & DEVELOPMENT Ltd. Sept. 4, 1969 [Sept.23, 1968], No. 43929/ 69. Heading C7B. An anodized aluminium metal or alloy workpiece is coloured e.g. bronze by passing A.C. between it and a counter-electrode whilst immersed in an acidic solution of a Ni or Co salt, in which the pH is maintained between 4À7 and 7 and Al ions are maintained at a value not less than 2 p. p. m. or sufficient to maintain saturation, whichever is the less, to electro-deposit an oxide or hydroxide of Ni or Co. The effect of the above pH is to suppress the dissolved Al ions to a value below 10 p. p. m. The solution may be made up with 15-40g/1 each of NiSO 4 . 7H 2 O and H 3 BO 3 with 10-20g/l (NH 4 ) 2 SO 4 , preferably also 2-30g/l MgSO 4 .7H 2 O, to which is added 0À06-0À12g/l Al 2 (SO 4 ) 3 . 18H 2 O (equivalent to 5-10 p. p. m. Al ions); CoSO 4 may be substituted for NiSO 4 . The counterelectrode may be of Ni(or Co) or graphite. Other Al compounds maybe added, e.g. acetate or hydroxide. Anodizing may be effected, using D.C., in aqueous H 2 SO 4 , CrO 3 or a sulphonic acid e. g. sulphosalicylic acid. [GB1216440A]
IE1221/69A 1968-09-23 1969-08-29 Process for colouring anodised aluminium by electrolytic deposition IE33554B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76171768A 1968-09-23 1968-09-23

Publications (2)

Publication Number Publication Date
IE33554L true IE33554L (en) 1970-03-23
IE33554B1 IE33554B1 (en) 1974-08-07

Family

ID=25063062

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1221/69A IE33554B1 (en) 1968-09-23 1969-08-29 Process for colouring anodised aluminium by electrolytic deposition

Country Status (19)

Country Link
US (1) US3616297A (en)
JP (1) JPS4824139B1 (en)
AT (1) AT288106B (en)
BE (1) BE738912A (en)
BR (1) BR6912589D0 (en)
CH (1) CH514685A (en)
CS (1) CS177018B2 (en)
DE (1) DE1947671C3 (en)
DK (1) DK132767C (en)
ES (1) ES371568A1 (en)
FI (1) FI47117C (en)
FR (1) FR2018630A1 (en)
GB (1) GB1216440A (en)
IE (1) IE33554B1 (en)
IL (1) IL32946A (en)
LU (1) LU59436A1 (en)
NL (1) NL146543B (en)
NO (1) NO123953C (en)
SE (1) SE346124C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144491B2 (en) * 1971-10-28 1976-11-29
CA1032107A (en) * 1973-03-20 1978-05-30 Tadashi Hirokane Process for electrolytic coloring of aluminum or aluminum alloy articles
JPS5339865B2 (en) * 1973-08-24 1978-10-24
JPS547267B2 (en) * 1973-09-21 1979-04-05
JPS578196B2 (en) * 1973-10-20 1982-02-15
CH581706A5 (en) * 1973-11-09 1976-11-15 Alusuisse
US4894127A (en) * 1989-05-24 1990-01-16 The Boeing Company Method for anodizing aluminum
DE60012797T2 (en) * 2000-05-24 2005-01-13 Fujikura Ltd. REMOTE INFRARED HEATING AND MANUFACTURING METHOD THEREFOR

Also Published As

Publication number Publication date
IL32946A0 (en) 1969-11-30
NO123953B (en) 1972-02-07
CH514685A (en) 1971-10-31
IE33554B1 (en) 1974-08-07
NL6913865A (en) 1970-03-25
DE1947671B2 (en) 1975-04-03
NO123953C (en) 1977-02-04
DK132767B (en) 1976-02-02
NL146543B (en) 1975-07-15
JPS4824139B1 (en) 1973-07-19
BE738912A (en) 1970-03-16
DK132767C (en) 1976-07-05
SE346124B (en) 1972-06-26
IL32946A (en) 1973-05-31
DE1947671A1 (en) 1970-04-23
DE1947671C3 (en) 1975-11-13
CS177018B2 (en) 1977-07-29
BR6912589D0 (en) 1973-06-12
GB1216440A (en) 1970-12-23
FI47117C (en) 1973-09-10
FI47117B (en) 1973-05-31
SE346124C (en) 1975-09-25
FR2018630A1 (en) 1970-06-26
US3616297A (en) 1971-10-26
LU59436A1 (en) 1970-01-08
ES371568A1 (en) 1971-11-01
AT288106B (en) 1971-02-25

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