PLATED STEEL SHEET FOR WELDED CAN

PROBLEM TO BE SOLVED: To produce a plated steel sheet composed of a steel sheet having an Fe-Sn-Ni layer, excellent in adhesion of plating as well as in corrosion resistance and discoloration resistance in an uncoated state and capable of welding without abrasive. SOLUTION: The steel sheet has an Fe...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO YOSHIHIDE, KAWAMURA KATSUTO, NAKAMARU HIROKI, NAKAKOUJI NAOMASA, MOCHIZUKI KAZUO
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 produce a plated steel sheet composed of a steel sheet having an Fe-Sn-Ni layer, excellent in adhesion of plating as well as in corrosion resistance and discoloration resistance in an uncoated state and capable of welding without abrasive. SOLUTION: The steel sheet has an Fe-Sn-Ni alloy layer and an Sn layer at least on one side, and further, respective outermost sides of both sides of the steel sheet are coated with a surface film consisting of metallic Cr layer and chromium hydrated oxide layer. At this time, the surface film, with which either side of the steel sheet is coated, is constituted of a metallic Cr layer having (>30 to 200) mg/m coating weight and a chromium hydrated oxide layer having (3 to 25) mg/m coating weight expressed in terms of Cr.