Abstract
The process of wear on the hammers of the impact crushers was analyzed by assuming that the wear rate is proportional to the energy lost through friction between the hammers and the rock particles colliding against them. The calculated result explained the concentration of the wear at the tip of the hammers observed in field operation. Wear rates of various materials were measured by using a laboratory impact crusher and were presented as a func-tion of hardness. Hard metals were found to be the best material for the tip of the hammers.
