Author used laser beam to quench the surface of the ore milling roller, so that increase its surface hardness and improve its wear resistance properties, and prolong its service life.
笔者对磨辊表面进行激光束淬火处理，以提高磨辊的表面硬度，增强磨辊的抗磨粒磨损性能，从而达到延寿的目的。
This article discusses the changes in properties, in particular with regard to frictional resistance and the enormous reduction in wear, which can be achieved by adding aramid to PA66.
本文讨论了性能上的变化，特别是在改进耐摩擦性和大量减少磨损时的性能变化，这种改进是通过在PA66中添加芳胺纤维达到的。
Engineering ceramic materials are difficult to machine because of their outstanding properties, such as high hardness, high wear resistance, high erosion resistance and high brittleness.
工程陶瓷因为具有极高的硬度、良好的耐磨耐蚀性和很高的脆性，使其成为难加工材料。
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