ore hardness is an objective existence and cannot be changed. The production method only adjusts the steel ball hardness to adapt to the needs of milling production. Usually the steel ball is high, the wear resistance is also high, and the material loss is low. However, the wear of the steel ball is not only related to its hardness, but also related to the hardness of the choice of mine mill liner and ore, the wear coefficient is a function of steel ball hardness and ore hardness ratio K.
When the ratio k = 0.8 to 1.3, the abrasion resistance coefficient increases with the steel ball hardness, but when K 1.3, the steel ball hardness is improved. The wearable coefficient is not significant, while the impact toughness of the steel ball decreases, resulting in a decrease in the efficiency of the mine mill grinder. This is because the higher the hardness of the steel ball, the smaller the brittleness, the smaller the impact toughness, and the steel ball and steel ball, the steel ball, the steel ball, the steel ball, the steel ball, the brittle steel ball is easy to show large pieces Flake phenomenon, forming a ball that is not round, the ball is too strong than the ball, it is easy to cause rupture or fragmentation.