NON CHROMATE COLORED CONVERSION COATING FOR ALUMINUM

The present invention relates to a process for the formation of colored conversion coatings on aluminum substrates using an acidic aqueous composition comprising chromium(lll), the elements Mo and/or W, a source of fluoride, and at least one oxidizing agent having a standard reduction potential in a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PALLADINI, LODOVICO, SOLDATI, ANDREA, VAN DE CAPPELLE, MATHIEU, DERCHIA, LORENZO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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