THERMAL SPRAY COATED WORK ROLL

PROBLEM TO BE SOLVED: To provide a work roll that can be used for extended periods of time without damaging the surface quality of the metal or metal alloy sheet, and has improved resistance to wear and corrosion.SOLUTION: A work roll thermally spray coated on an outer peripheral surface of a cylind...

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Bibliographische Detailangaben
1. Verfasser:	JAROSINSKI WILLIAM
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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL 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 work roll that can be used for extended periods of time without damaging the surface quality of the metal or metal alloy sheet, and has improved resistance to wear and corrosion.SOLUTION: A work roll thermally spray coated on an outer peripheral surface of a cylindrical structure has a sprayed coating which comprises: from about 65 to about 95 weight percent of one or more Group VI metal carbides; metallic binders containing Co, Cr, Mn, Fe, and Ni; and a CrOlayer existing on at least a part of a splat boundary protecting the metal carbides and metallic binders. Group VI metal carbides can be represented by a formula MxC, and the MxC phase is composed of MC, M2C, M6C, M9C, and M12C. (M is one or more of Cr, Co, Mo, and W; x is an integer of 1 to 12.)