Filmed metal member for float glass manufacturing equipment and float glass manufacturing method

The present invention provides a metal member that is used so that there is a portion that is exposed to the atmosphere in a float bath, and with which diffusion of Fe into the float bath is inhibited and thereby preventing the defect from being generated on the surface of a plate glass. The present...

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Bibliographische Detailangaben
Hauptverfasser:	NIWA AKIFUMI, HAMASHIMA KAZUO, BAN NOBUYUKI
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 GLASS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The present invention provides a metal member that is used so that there is a portion that is exposed to the atmosphere in a float bath, and with which diffusion of Fe into the float bath is inhibited and thereby preventing the defect from being generated on the surface of a plate glass. The present invention relates to a metal member with a film for a float glass manufacturing equipment that has a portion exposed to the atmosphere in a float bath in which the film has a mean thickness of from 50 to 500 µm and contains Ni and/or Co, Cr and Al 2 O 3 as main components; the Al 2 O 3 content in the film is from 5 to 40% by volume; the Al 2 O 3 is present in a thin film state in the surface direction of the metal member, inside the film; and the metal member contains Fe in an amount of from 40 to 98% by mass and has the film on the exposed portions.