微粉砕操作における媒体の摩耗

Abstract

Contamination during fine grinding is an important problem for a raw powder of newly developed materials. Wear behaviors of grinding media, which were made of steel, alumina and zirconia, were examined during fine grinding using a vibration ball mill. Ball wear was nearly proportional to a specific surface area of ground products. It was supposed that the wear in wet grinding is more than in dry grinding, because wet grinding is more effective for fine grinding. Wear was effected by the materials of the grinding media. Ball wear, which was made of zirconia, was the least of three kinds of balls, that were used. Linear wear was not as much as ball wear.