Aqueous conversion treating agent for aluminum or aluminum alloy, conversion treating method and conversion treated aluminum or aluminum alloy

An object of this invention is to provide a 6-valent-chrome-free conversion treating technique showing a stable and excellent etching resistance, for aluminum or an aluminum alloy, especially an aluminum die casting material, with various surface states. Provided is an aqueous conversion treating ag...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OSHITA, KENICHIRO, HISADOMI, YU, MAEDA, KAZUHIRO
Format:	Patent
Sprache:	chi ; eng
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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