Trimetal pulverizer roll and a method of manufacture thereof

Details Trimetal pulverizer roll and a method of manufacture thereof Trimetal pulverizer roll and a method of manufacture thereof

B - Operations, Transporting

02

C

241/57

B02C 4/30 (2006.01) B02C 15/00 (2006.01) B02C 15/04 (2006.01)

Patent

CA 1212365

-28- A TRIMETAL PULVERIZER ROLL AND A METHOD OF MANUFACTURE THEREOF ABSTRACT OF THE DISCLOSURE A pulverizer, i.e., grinding, roll (18) of the type that is particularly suited for embodiment in a bowl mill (10) wherein the roll (18) coacts with another surface (14) within the mill (10) to effect the pulverization therewithin of a material such as coal. The subject roll (18) embodies a trimetal form of construction. More specifically, the core material, i.e., the first or inner layer (50), of the trimetal roll (18) consists of a relatively soft material that is noted for its good machinability. The next, i.e., second or intermediate, layer (52) of the trimetal roll (18) comprises a material that has medium wear-resistant qualities. The last, i.e., third or outer, layer (54) of the trimetal roll (18) comprises a material having highly abrasive resistant qualities. In addition, there is provided a method of manufacturing such a trimetal roll (18).

431137

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