BRIGHT COATINGS FOR ALUMINIUM OR STEEL MOTOR VEHICLE WHEELS AND THEIR PRODUCTION

Shiny coatings for car wheels made from light metal alloys or steel comprises at least one layer of aluminum or aluminum alloy. This is applied directly to the surface of the wheel. Independent claims are included for: (A) a method for producing shiny coatings on aluminum alloy or steel surfaces com...

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Bibliographische Detailangaben
Hauptverfasser:	LOEHR, KARSTEN, KRAENZLER, THOMAS
Format:	Patent
Sprache:	eng ; fre ; ger
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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Beschreibung
Zusammenfassung:	Shiny coatings for car wheels made from light metal alloys or steel comprises at least one layer of aluminum or aluminum alloy. This is applied directly to the surface of the wheel. Independent claims are included for: (A) a method for producing shiny coatings on aluminum alloy or steel surfaces comprising:(1) gas phase deposition of aluminum or aluminum alloy to from a sealed, shiny coating; and (b) electrochemical oxidation of the coating to produce a nano- to microporous second layer of aluminum oxide with a thickness of 50 - 1000 nm; and (B) car wheels made from aluminum alloys or steel with a shiny coating as described.