Grinding Kinetics of Powders Produced from Bearing Production Waste in a Ball Mill

Abstract

Mathematical one- and two-parameter models used to describe the grinding of structural materials and ores are analyzed with the purpose of their potential use to describe the grinding of metal powders. Experimental verification is carried out with PZhR-3 iron powders (as per GOST 9849–88) and ShKh15 steel powders resulting from bearing production waste. The most accurate description (with the smallest difference between theoretical and experimental results) of metal powder grinding is obtained with the kinetic equation by K. Razumov.