Roller shell hard coating

Details Roller shell hard coating Roller shell hard coating

B - Operations, Transporting

30

B

117/91

B30B 11/20 (2006.01) B23K 9/04 (2006.01) B23K 35/32 (2006.01)

Patent

CA 1083897

ROLLER SHELL HARD COATING Abstract of the Disclosure Invention covers a method of hard surfacing machine parts, specifically the invention discloses a method of impregnating the surface of cylindrical pellet mill roller shells with tungsten carbide particles applied with a tungsten inert gas welding process. In the method of this invention, the surface layer of the roller shell is first carbon enriched by surface gas carburizing prior to welding. The resulting surface exhibits good distribution of tungsten carbide particles and resistance to surface cracking.

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