On the Materials of Nozzle and Disk of Impact-Cell-Mill (ICM)

Abstract

A study on the durability of nozzle and disk of Impact-Cell-Mill under impact and erosion of strong water jet was undertaken to obtain the following results. Sintered hard alloys and a cermet gave better results than ceramics and stellite did for keeping durability of the disk. Corundum (α-alumina) was the most suitable material to make a disk of ICM. Since the material of the nozzle was not affected by direct impact of water jet, however, materials of less hardness, flextural strength and bond energy of crystallization than corundum, such as sintered hard alloys and a cermet could be practically employed.