High-Purity Corundum Grinding Balls Obtained by Quasi-Isostatic Pressing

Abstract

The influence of the composition of compacted powders based on CT 3000 LS SG alumina, as well as the process parameters of quasi-isostatic pressing and firing, on the structural and mechanical characteristics of grinding balls with a diameter of 40 mm is shown. The revealed patterns are used to optimize the production process of high-density corundum balls. The results of integrated tests of their physical and mechanical properties are presented. The particle size of the raw material component was shown to have a determining effect on the hardness, density, and operational characteristics of the resultant grinding bodies.