ALLOYED ZINC PLATED STEEL PLATE

PURPOSE:To provide an alloyed zinc plated steel plate which prevents cratering during electrodeposition painting by forming the surface compsn. of a plating layer into the single phase structure of an Fe-Zn alloy contg. no alpha-Fe and specifying the thickness of said plating layer. CONSTITUTION:An...

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Bibliographische Detailangaben
Hauptverfasser:	AZAMI TADAO, OIE YOSHIHIRO, MIURA YOSHITAKA
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:	PURPOSE:To provide an alloyed zinc plated steel plate which prevents cratering during electrodeposition painting by forming the surface compsn. of a plating layer into the single phase structure of an Fe-Zn alloy contg. no alpha-Fe and specifying the thickness of said plating layer. CONSTITUTION:An alloyed zinc plated steel plate which is formed with a plating layer wherein the surface compsn. is the single phase structure of Fe-Zn contg. no alphaFe to 3-20mu thickness by applying zinc hot dipping or zinc electroplating on a steel plate and heating the steel plate or applying Fe-Zn codeposition electroplating on the steel plate. The alloyed zinc plated steel plate having the surface of the single phase structure obviates deposition of nuclear materials in the plating layer and suppresses cratering in the state of cationic electrodeposition painting. If the thickness of the plating layer is about 1-2mu, there is no effect of suppressing the cratering.