GB715537A - Process for the plating of aluminium and its alloys - Google Patents

Process for the plating of aluminium and its alloys

Info

Publication number
GB715537A
GB715537A GB6722/52A GB672252A GB715537A GB 715537 A GB715537 A GB 715537A GB 6722/52 A GB6722/52 A GB 6722/52A GB 672252 A GB672252 A GB 672252A GB 715537 A GB715537 A GB 715537A
Authority
GB
United Kingdom
Prior art keywords
per cent
treatment
zinc
alloy containing
alloys
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
GB6722/52A
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.)
Pechiney SA
Original Assignee
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 Pechiney SA filed Critical Pechiney SA
Publication of GB715537A publication Critical patent/GB715537A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
    • Y10S205/917—Treatment of workpiece between coating steps

Landscapes

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

Abstract

Articles of aluminium or its alloys are prepared for electro-plating by producing an intermediate coating of zinc by treatment in a zincate dipping solution containing a cyanide of a heavy metal other than zinc which is capable of forming complex cyanides and an alkali-metal cyanide, the latter being in such substantial quantity that its weight is more than four times that of the heavy metal cyanide. Electrolysis may be employed in the treatment but simple dipping is preferred. Suitable proportions for the dipping solution are in gms. per litre, Zn O 25-150, preferably 50-100, Na OH 100-600, preferably 250-350, KCN 30-170, preferably 130-170, Cu CN 0.1-40, preferably 3-6; Na OH may be replaced by KOH and KCN by NaCN and copper may be partially or wholly replaced by silver or cadmium. The zinc coating may be dissolved in acid, e.g. nitric acid and a second zinc coating then similarly applied. Before treatment in the zincate dipping solution the articles may be degreased first with trichlorethylene then electrolytically. Treatment of the following aluminium alloys is described (i) an alloy containing 4 per cent. Cu, 0.6 per cent. Mg, 0.6 per cent. Mn and 0.4 per cent. Si (ii) an alloy containing 4.5 per cent. Si, 0.7 per cent. Mg, 0.5 per cent. Mn (iii) an alloy containing 11 per cent. Mg.
GB6722/52A 1951-03-16 1952-03-14 Process for the plating of aluminium and its alloys Expired GB715537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1034060T 1951-03-16

Publications (1)

Publication Number Publication Date
GB715537A true GB715537A (en) 1954-09-15

Family

ID=9584854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6722/52A Expired GB715537A (en) 1951-03-16 1952-03-14 Process for the plating of aluminium and its alloys

Country Status (5)

Country Link
US (1) US2745799A (en)
BE (1) BE509936A (en)
CH (1) CH298516A (en)
FR (1) FR1034060A (en)
GB (1) GB715537A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072860B (en) * 1960-01-07 Beteiligungs- und Patentverwal tungsgesellschaft mit beschrankter Haf tung, Essen Process for cleaning the surfaces of metals and alloys that have a high affinity for oxygen and nitrogen
US3041259A (en) * 1959-07-31 1962-06-26 Hanson Van Winkle Munning Co Cleaning aluminum surfaces
US3284323A (en) * 1961-09-12 1966-11-08 Electroplating of aluminum and its alloys
BE791008A (en) * 1971-11-09 1973-05-07 Citroen Sa IMPROVEMENTS TO THE METHODS FOR FORMING ON A WALL EXPOSED TO FRICTION FORCES AND BELONGING TO A LIGHT ALLOY PART, OF A WEAR-RESISTANT COMPOSITE METAL COATING
JPS5722998B2 (en) * 1973-09-25 1982-05-15
US3989606A (en) * 1975-09-26 1976-11-02 Aluminum Company Of America Metal plating on aluminum
US4861290A (en) * 1987-12-09 1989-08-29 Eaton Corporation Aluminum electrical connector with threaded opening having electroplated layer of uniform thickness
US5712049A (en) * 1992-11-27 1998-01-27 Glyco-Metall-Werke Glyco B.V. & Co. Kg Sliding element and process for producing the same
KR100756752B1 (en) * 2000-03-10 2007-09-07 코루스 알루미늄 발쯔프로두크테 게엠베하 Brazing sheet product and method of manufacturing an assembly using the brazing sheet product
AU2001281769B2 (en) 2000-05-18 2004-04-01 Corus Aluminium Walzprodukte Gmbh Method of manufacturing an aluminium product
US6656606B1 (en) * 2000-08-17 2003-12-02 The Westaim Corporation Electroplated aluminum parts and process of production
AU2002224816B2 (en) * 2000-11-08 2005-06-16 Corus Aluminium Walzprodukte Gmbh Brazing product having a low melting point
US6796484B2 (en) 2001-02-02 2004-09-28 Corus Aluminum Walzprodukte Gmbh Nickel-plated brazing product having improved corrosion performance
CN1304643C (en) 2001-04-20 2007-03-14 克里斯铝轧制品有限公司 Method of plating and pretreating aluminium workpieces
US20040038070A1 (en) * 2001-11-21 2004-02-26 Dockus Kostas F. Fluxless brazing
US7451906B2 (en) * 2001-11-21 2008-11-18 Dana Canada Corporation Products for use in low temperature fluxless brazing
US20040035911A1 (en) * 2001-11-21 2004-02-26 Dockus Kostas F. Fluxless brazing
US6815086B2 (en) * 2001-11-21 2004-11-09 Dana Canada Corporation Methods for fluxless brazing
US20060102696A1 (en) 2001-11-21 2006-05-18 Graham Michael E Layered products for fluxless brazing of substrates
US20040035910A1 (en) * 2001-11-21 2004-02-26 Dockus Kostas F. Low temperature fluxless brazing
US7294411B2 (en) * 2002-01-31 2007-11-13 Aleris Aluminum Koblenz Gmbh Brazing product and method of its manufacture
US6994919B2 (en) * 2002-01-31 2006-02-07 Corus Aluminium Walzprodukte Gmbh Brazing product and method of manufacturing a brazing product
US20040072011A1 (en) * 2002-10-10 2004-04-15 Centro De Investigaciq Materiales Avanzados, S.C. Electroless brass plating method and product-by-process
US7078111B2 (en) * 2002-12-13 2006-07-18 Corus Aluminium Walzprodukte Gmbh Brazing sheet product and method of its manufacture
US7056597B2 (en) * 2002-12-13 2006-06-06 Corus Aluminium Walzprodukte Gmbh Brazing sheet product and method of its manufacture
US20060157352A1 (en) * 2005-01-19 2006-07-20 Corus Aluminium Walzprodukte Gmbh Method of electroplating and pre-treating aluminium workpieces

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1405534A (en) * 1919-04-15 1922-02-07 Merritt Metals Company Electrolytically-coated wire
US2091386A (en) * 1935-08-01 1937-08-31 Eaton Detroit Metal Company Electroplating
DE663979C (en) * 1935-11-19 1938-09-03 Schering Ag Production of galvanic deposits on aluminum and aluminum alloys
US2418265A (en) * 1939-09-22 1947-04-01 Sherka Chemical Co Inc Process for providing aluminum and aluminum alloys with metal coatings
US2496845A (en) * 1946-06-10 1950-02-07 Chrysler Corp Bath for brass immersion coating on aluminum and aluminum alloy
GB652800A (en) * 1948-06-10 1951-05-02 Magnesium Elektron Ltd Improvements in or relating to the provision on magnesium and magnesium base alloys of metallic coatings by electrodeposition
US2662054A (en) * 1950-09-08 1953-12-08 United Chromium Inc Method of electrodepositing chromium directly on aluminum

Also Published As

Publication number Publication date
CH298516A (en) 1954-05-15
FR1034060A (en) 1953-07-17
BE509936A (en)
US2745799A (en) 1956-05-15

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