GB1017402A - Method for electroplating on aluminium and its alloys - Google Patents

Method for electroplating on aluminium and its alloys

Info

Publication number
GB1017402A
GB1017402A GB26439/62A GB2643962A GB1017402A GB 1017402 A GB1017402 A GB 1017402A GB 26439/62 A GB26439/62 A GB 26439/62A GB 2643962 A GB2643962 A GB 2643962A GB 1017402 A GB1017402 A GB 1017402A
Authority
GB
United Kingdom
Prior art keywords
alkali
aluminium
bath
rinsed
electroplating
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
GB26439/62A
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.)
Diversey Ltd
Original Assignee
Diversey UK 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 Diversey UK Ltd filed Critical Diversey UK Ltd
Priority claimed from US235104A external-priority patent/US3235404A/en
Publication of GB1017402A publication Critical patent/GB1017402A/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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
    • C25D5/44—Aluminium
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Aluminium surfaces are prepared for electroplating by pre-treatment with an alkaline solution containing zinc oxide and an alkali metal gluconate, forming a zinc coating by chemical plating. The bath contains 10-200 g. ZnO and 2-20 g. or more of sodium gluconate per litre. Preferably the aluminium or alloy sheet is cleaned with a solution containing alkali, alkali phosphate and a wetting agent, rinsed, pickled in HNO3, rinsed, and then dipped in the alkali zincate bath for 1 minute at 75 DEG F. It is then electroplated in an alkali copper cyanide bath containing Rochelle salt. Cadmium, nickel, silver, zinc, tin or iron may be electroplated over the copper.
GB26439/62A 1961-07-17 1962-07-10 Method for electroplating on aluminium and its alloys Expired GB1017402A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12437561A 1961-07-17 1961-07-17
US235104A US3235404A (en) 1962-11-02 1962-11-02 Method and compositions for zinc coating aluminum

Publications (1)

Publication Number Publication Date
GB1017402A true GB1017402A (en) 1966-01-19

Family

ID=26822505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26439/62A Expired GB1017402A (en) 1961-07-17 1962-07-10 Method for electroplating on aluminium and its alloys

Country Status (4)

Country Link
BE (2) BE634213A (en)
CH (1) CH425394A (en)
FR (2) FR1328209A (en)
GB (1) GB1017402A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1166905A2 (en) * 2000-06-29 2002-01-02 Corus Aluminium N.V. Method for producing an aluminium sheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846168A (en) * 1973-07-02 1974-11-05 Ibm Method of forming bondable substrate surfaces
JPS6363567A (en) * 1986-09-04 1988-03-19 Showa Alum Corp Production of heat exchanger having excellent corrosion resistance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1166905A2 (en) * 2000-06-29 2002-01-02 Corus Aluminium N.V. Method for producing an aluminium sheet
EP1166905A3 (en) * 2000-06-29 2003-04-02 Corus Aluminium N.V. Method for producing an aluminium sheet

Also Published As

Publication number Publication date
BE634213A (en)
FR1362169A (en) 1964-05-29
CH425394A (en) 1966-11-30
FR1328209A (en) 1963-05-24
BE620133A (en)

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