METHOD FOR PRODUCING MEMBER FOR MOLTEN METAL BATH HAVING COATING FILM EXCELLENT IN RESISTANCE TO CORROSION BY MOLTEN METAL

A method for producing a member for a molted metal bath having a coating film excellent in resistance to the corrosion owing to molten metal, which comprises applying or spraying a colloid solution obtained by incorporating an inorganic binder into an inorganic colloid compound solution containing 5...

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Bibliographische Detailangaben
Hauptverfasser:	HIROSHIGE, MUNETOSHI, TARUMI, KIYOHIRO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BEARINGS BLASTING 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 ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method for producing a member for a molted metal bath having a coating film excellent in resistance to the corrosion owing to molten metal, which comprises applying or spraying a colloid solution obtained by incorporating an inorganic binder into an inorganic colloid compound solution containing 5 to 50 wt.% of an inorganic colloid having particle diameters of 5 to 50 nm in a weight of 0.3 - 3.0 of the inorganic binder relative to 1.0 of the weight of the inorganic colloid, as a solution for sealing pores, to an uppermost thermal spray layer formed on a surface of a substrate, the uppermost layer being a thermal spray cermet coating or an oxide ceramics coating (including that formed on a thermal spray cermet coating), to thereby impregnate the uppermost coating with the colloid solution, and subsequently firing the resulting products. This method leads to the formation of a thermal spray coating excellent in resistance to corrosion and to delamination, and then allows a continuous operation of a plating line over a long period of time.