BLACK CHEMICAL CONVERSION COATING, BLACK CHEMICAL CONVERSION COATING TREATMENT LIQUID, METHOD FOR FORMING THE BLACK CHEMICAL CONVERSION COATING, SOLUTION CONTAINING RARE EARTH ELEMENT USED IN THE METHOD FOR FORMING THE CHEMICAL CONVERSION COATING AND MEMBER EQUIPPED WITH THE BLACK CHEMICAL CONVERSION COATING

PROBLEM TO BE SOLVED: To provide a black chemical conversion coating that is capable of improving blackness without deteriorating corrosion resistance, a black chemical conversion coating treatment liquid, a method for forming the black chemical conversion coating, a solution containing rare earth e...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO IE, MASUDA ASAMI, MAKINO TOSHIAKI, HORIE HIDEKAZU
Format:	Patent
Sprache:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a black chemical conversion coating that is capable of improving blackness without deteriorating corrosion resistance, a black chemical conversion coating treatment liquid, a method for forming the black chemical conversion coating, a solution containing rare earth elements used in the method for forming the chemical conversion coating, and a member equipped with the black chemical conversion coating.SOLUTION: The black chemical conversion coating is formed on a member having a metal surface. The black chemical conversion coating contains trivalent chromium and ≥0.0010 g/mrare earth elements, has a thickness of 100-1,500 nm and is free of hexavalent chromium.