METHOD AND APPARATUS FOR CLEANING HOT DIP GALVANIZED STEEL SHEET

PROBLEM TO BE SOLVED: To provide a cleaning method and a cleaning apparatus for efficiently and sufficiently washing off an acid solution deposited on a surface of a hot dip galvanized steel sheet subjected to surface oxidation. SOLUTION: A cleaning solution is brought into contact with the hot dip...

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Hauptverfasser:	SUGANO TAKAHIRO, YONEDA TOMOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING CLEANING IN GENERAL CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS 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 PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cleaning method and a cleaning apparatus for efficiently and sufficiently washing off an acid solution deposited on a surface of a hot dip galvanized steel sheet subjected to surface oxidation. SOLUTION: A cleaning solution is brought into contact with the hot dip galvanized steel sheet, and after one second is elapsed, pure water is brought into contact with the hot dip galvanized steel sheet. COPYRIGHT: (C)2007,JPO&INPIT