AU2003294994A1 - Method of obtaining chromate-free conversion coatings on aluminium alloys - Google Patents

Method of obtaining chromate-free conversion coatings on aluminium alloys

Info

Publication number
AU2003294994A1
AU2003294994A1 AU2003294994A AU2003294994A AU2003294994A1 AU 2003294994 A1 AU2003294994 A1 AU 2003294994A1 AU 2003294994 A AU2003294994 A AU 2003294994A AU 2003294994 A AU2003294994 A AU 2003294994A AU 2003294994 A1 AU2003294994 A1 AU 2003294994A1
Authority
AU
Australia
Prior art keywords
aluminium alloys
conversion coatings
free conversion
chromate
obtaining
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.)
Abandoned
Application number
AU2003294994A
Inventor
Manuel Bethencourt Nunez
Francisco Javier Botana Pedemonte
Maria Jose Cano Iglesias
Mariano Marcos Barcena
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.)
Universidad de Cadiz
Original Assignee
Universidad de Cadiz
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 Universidad de Cadiz filed Critical Universidad de Cadiz
Publication of AU2003294994A1 publication Critical patent/AU2003294994A1/en
Abandoned 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/56—Treatment of aluminium or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
AU2003294994A 2002-12-27 2003-12-26 Method of obtaining chromate-free conversion coatings on aluminium alloys Abandoned AU2003294994A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200203025A ES2211348B1 (en) 2002-12-27 2002-12-27 PROCEDURE FOR OBTAINING CHROME-FREE CONVERSION LAYERS ON ALUMINUM ALLOYS.
ESP200203025 2002-12-27
PCT/ES2003/000665 WO2004059035A1 (en) 2002-12-27 2003-12-26 Method of obtaining chromate-free conversion coatings on aluminium alloys

Publications (1)

Publication Number Publication Date
AU2003294994A1 true AU2003294994A1 (en) 2004-07-22

Family

ID=32669113

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003294994A Abandoned AU2003294994A1 (en) 2002-12-27 2003-12-26 Method of obtaining chromate-free conversion coatings on aluminium alloys

Country Status (3)

Country Link
AU (1) AU2003294994A1 (en)
ES (1) ES2211348B1 (en)
WO (1) WO2004059035A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2915903B1 (en) 2014-03-05 2018-02-21 The Boeing Company Chromium-free conversion coating

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1292155C (en) * 1987-03-03 1991-11-19 Lance Wilson Method of forming a corrosion resistant coating
US5194138A (en) * 1990-07-20 1993-03-16 The University Of Southern California Method for creating a corrosion-resistant aluminum surface
US5192374A (en) * 1991-09-27 1993-03-09 Hughes Aircraft Company Chromium-free method and composition to protect aluminum
US5362335A (en) * 1993-03-25 1994-11-08 General Motors Corporation Rare earth coating process for aluminum alloys
US5582654A (en) * 1994-05-20 1996-12-10 The University Of Southern California Method for creating a corrosion-resistant surface on aluminum alloys having a high copper content

Also Published As

Publication number Publication date
ES2211348B1 (en) 2005-10-01
ES2211348A1 (en) 2004-07-01
WO2004059035A1 (en) 2004-07-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase