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零件随着工作时间增加而磨损增大,在到需要维修或更换前磨损速度有三个不同时期,即磨合期稳定磨损期和剧烈磨损期。磨合期——新装配的零件,由于表面有粗糙度和几何形状偏差,零件间的实际接触面积小,单位面积上载荷大,油膜不易保持而磨损较强烈,在按磨合规范磨合结束后,表面状态进入适合工作条件要求状态,磨损速度降低。稳定磨损期——零件磨损量与工作时间成正比例地增长,一般比较缓慢。但在使用、保养不精心,工作条件恶劣时,零件磨损的强烈度仍可能较大。剧烈磨损期——零件磨损积累较大,配合件间隙增
Parts increase with working time and wear and tear increases, to wear or replacement before the need to wear speed has three different periods, that run-in period of stable wear and tear and severe wear period. Run-in period - newly assembled parts, due to the surface roughness and geometric deviation, the actual contact area between parts, the unit area of the load, the film is not easy to maintain and wear more intense, State into the work conditions required to enter the state, reduce wear and tear. Stable wear and tear - Parts wear increases in proportion to working hours, generally slower. However, the use, maintenance is not careful, poor working conditions, the intensity of wear parts may still be greater. Dramatic wear and tear - parts wear larger accumulation, with the pieces of the gap increase