SURFACE GLOSSY MAGNESIUM MOLDED ARTICLE

PROBLEM TO BE SOLVED: To provide a surface glossy magnesium molded article in which the corrosion due to the local cell formed between a magnesium base material and a noble metal plating layer is suppressed, and which is excellent in decorativeness and ray specular reflectivity. SOLUTION: The surfac...

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Hauptverfasser:	HIRAI TOSHINOBU, IWAMI YUZO, UEDA YOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a surface glossy magnesium molded article in which the corrosion due to the local cell formed between a magnesium base material and a noble metal plating layer is suppressed, and which is excellent in decorativeness and ray specular reflectivity. SOLUTION: The surface glossy magnesium molded article includes a magnesium base material composed of a magnesium metal alone or magnesium alloy, an oxide film which is formed at a thickness of ≥5 μm to ≤50 μm on the surface of the magnesium base material by anodic oxidation treatment or plasma electrolytic oxidation treatment, and is adjusted in surface roughness to ≤0.4 μm by polishing treatment after the formation, and a noble metal plating layer of ≤0.3 μm in surface roughness Ra which is formed by a wet process plating method on the surface of the oxide film. COPYRIGHT: (C)2009,JPO&INPIT