选矿是冶金生产的重要工序,对于我国贫矿的利用尤为重要。选矿设备中许多金属机件直接加工处理高硬度的矿料,而且是连续不断地工作,处理量又大,所以受到强烈的磨料磨损。这类易磨件使用寿命短,需要经常更换,对于连续生产十分不利,而且造成大量的人力及材料的消耗。机件不抗磨时常成为各个矿山的老大难问题。机件失效与设计,操作及材料都有关系,然而材料的冶金质量差或选材不当时常是个十分重要的原因。目前,选矿设备的易磨件使用的材料,包括橡胶、陶瓷及钢铁,然而主要的仍是钢铁材料,因为它价格便宜而且适用性强。高锰钢固然是一种较好的抗磨材料,仍然适用于破碎设备中 Mineral processing is an important process of metallurgical production, which is especially important for the utilization of poor ore in our country. Many metal processing equipment in the direct processing of high-hardness metal parts, but also continuous work, handling large, so by a strong abrasive wear. The wear parts of this type have short service life and need to be replaced frequently, which is very unfavorable for continuous production and causes a lot of manpower and material consumption. Mechanical parts are not always anti-wear mine dilemma. Mechanical failure and design, operation and materials are related, however, the poor quality of the material or improper material selection is often a very important reason. At present, the materials used for the wear parts of mineral processing equipment, including rubber, ceramics and steel, are still the main materials of steel because of their cheapness and applicability. High manganese steel is of course a good anti-wear material, is still suitable for crushing equipment