ES2096738T3 - HERMETIC COATING PROCEDURE OF AN ANODIZATION LAYER OBTAINED IN A CHROMIC BATH. - Google Patents

HERMETIC COATING PROCEDURE OF AN ANODIZATION LAYER OBTAINED IN A CHROMIC BATH.

Info

Publication number
ES2096738T3
ES2096738T3 ES92403190T ES92403190T ES2096738T3 ES 2096738 T3 ES2096738 T3 ES 2096738T3 ES 92403190 T ES92403190 T ES 92403190T ES 92403190 T ES92403190 T ES 92403190T ES 2096738 T3 ES2096738 T3 ES 2096738T3
Authority
ES
Spain
Prior art keywords
layer obtained
coating procedure
anodization layer
hermetic coating
chromic
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 - Lifetime
Application number
ES92403190T
Other languages
Spanish (es)
Inventor
Robert Wolf
Jean Bevalot
Claude Brault
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.)
Dassault Aviation SA
Aalberts Surface Technologies SAS
Original Assignee
Dassault Aviation SA
Societe de Galvanoplastie Industrielle SAS
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 Dassault Aviation SA, Societe de Galvanoplastie Industrielle SAS filed Critical Dassault Aviation SA
Application granted granted Critical
Publication of ES2096738T3 publication Critical patent/ES2096738T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Paints Or Removers (AREA)

Abstract

PARA OBTENER SIMULTANEAMENTE UNA BUENA RESISTENCIA A LA CORROSION Y UNA BUENA ADHERENCIA DE LA PINTURA, EL COLMATAJE DE LA CAPA DE OXIDO, OBTENIDA POR ANODIZACION CROMICA SE EFECTUA EN LAS SIGUIENTES CONDICIONES: GUA DESMINERALIZADA, BICROMATO DE POTASIO O DE SODIO: 8 A 12 GRAMOS POR LITRO, PH: AJUSTADO A: 4,5 A 6,5 POR UNA ADICION CONVENIENTEMENTE DE SOSA CAUSTICA. (GRADOS) C. NA TASA DE HIDRATACION DEL REVESTIMIENTO DE ALUMINA COMPRENDIDA ENTRE 8 Y 15%.TO OBTAIN A GOOD CORROSION RESISTANCE AND A GOOD PAINT ADHESION SIMULTANEOUSLY, THE OXIDE LAYER COLMAGE, OBTAINED BY CHROME ANODIZATION, IS PERFORMED IN THE FOLLOWING CONDITIONS: DEMINERALIZED GUA, POTOSIUM SODIUM A 8: PER LITER, PH: ADJUSTED TO: 4.5 TO 6.5 FOR A CONVENIENT ADDITION OF CAUSTIC SOSA. (GRADES) C. NA RATE OF HYDRATION OF ALUMINA COATING INCLUDED BETWEEN 8 AND 15%.

ES92403190T 1991-11-29 1992-11-26 HERMETIC COATING PROCEDURE OF AN ANODIZATION LAYER OBTAINED IN A CHROMIC BATH. Expired - Lifetime ES2096738T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9114777A FR2684393B1 (en) 1991-11-29 1991-11-29 PROCESS FOR SEALING AN ANODIZATION LAYER OBTAINED IN A CHROMIC BATH.

Publications (1)

Publication Number Publication Date
ES2096738T3 true ES2096738T3 (en) 1997-03-16

Family

ID=9419487

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92403190T Expired - Lifetime ES2096738T3 (en) 1991-11-29 1992-11-26 HERMETIC COATING PROCEDURE OF AN ANODIZATION LAYER OBTAINED IN A CHROMIC BATH.

Country Status (6)

Country Link
EP (1) EP0545785B1 (en)
DE (1) DE69210773T2 (en)
EG (1) EG19803A (en)
ES (1) ES2096738T3 (en)
FR (1) FR2684393B1 (en)
GR (1) GR3020000T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH689395A5 (en) * 1995-03-16 1999-03-31 Alusuisse Lonza Services Ag Process for the continuous anodic oxidation of strip or wire of aluminum.
US7527872B2 (en) * 2005-10-25 2009-05-05 Goodrich Corporation Treated aluminum article and method for making same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256547A (en) * 1979-07-12 1981-03-17 General Dynamics Corporation Universal chromic acid anodizing method

Also Published As

Publication number Publication date
EP0545785B1 (en) 1996-05-15
GR3020000T3 (en) 1996-08-31
FR2684393B1 (en) 1994-12-09
EG19803A (en) 1996-03-31
EP0545785A1 (en) 1993-06-09
DE69210773D1 (en) 1996-06-20
FR2684393A1 (en) 1993-06-04
DE69210773T2 (en) 1997-01-16

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