METHOD FOR PREVENTING MOLTEN METAL FORM BEING OXIDIZED OF VACUUM DEPOSITION PLATING EQUIPMENT FOR STEEL STRIP

PROBLEM TO BE SOLVED: To realize the perfectly signal plating operation by preventing the molten metal in an evaporation tank of a non-plated material from being oxidized during the single plating operation in a vacuum deposition composite plating equipment. SOLUTION: A plurality sets of vacuum depo...

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Bibliographische Detailangaben
Hauptverfasser:	DOI TAKASHI, MORIYAMA YOSHITERU
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 realize the perfectly signal plating operation by preventing the molten metal in an evaporation tank of a non-plated material from being oxidized during the single plating operation in a vacuum deposition composite plating equipment. SOLUTION: A plurality sets of vacuum deposition parts 10, 20 are arranged in the longitudinal direction in the advancing direction of a strip on one plating line, a melting furnace 13 is loaded on an elevation table 11 in each vacuum deposition part, a schnorkel 14 is extended upward from the melting furnace and led to an evaporation tank 25, the evaporation tank is connected to an evaporation chamber 16 through a shutter, and the elevation table is lowered so that the molten metal in the evaporation tank is returned to the melting furnace for other vacuum deposition parts not in use.