在Bowden——Laben实验机上,对不同负荷时点接触滑动表面产生的磨痕进行了研究,并借助是微硬度计和显徽境,对低碳钢、铸铁和渗碳钢在往复摩擦下的破坏,进行了测定和观察。实验表明,磨痕下不同深度处的显微硬度值,可能是滑动作用造成严重磨损的一个指标,此指标对不同材料来说,其临界值是一定的。本文讨论了磨损的机理,以及在接触表面随负荷和滑动循环次数增加时,磨损的变化。 On the Bowden - Laben test machine, the worn marks on the contact sliding surfaces at different loading time were studied. With the help of a microhardness tester and a logo emblem, the wear resistance of mild steel, cast iron and carburized steel under reciprocating friction Destruction, were measured and observed. Experiments show that the micro-hardness values ​​at different depths under the wear scar may be an index of the serious wear caused by the sliding action. The critical value of the index for different materials is certain. This article discusses the mechanism of wear and the change in wear as the contact surface increases with load and slip cycle times.