摘要
为了研究表面微凹坑造型对化工机械设备中轴承合金润滑摩擦性能的影响,利用UMT-2型多功能摩擦磨损试验机,对不同工艺参数表面微凹坑轴承合金进行油润滑条件下摩擦磨损试验。研究了微凹坑面积密度、深度对摩擦因数的影响规律,同时探讨了工况条件对摩擦性能的影响。试验结果表明:微凹坑面积密度和微凹坑深度对摩擦性能的影响均存在最优值,微凹坑面积密度为10%,深度为25μm时,表面微凹坑造型减摩效果最佳;微凹坑面积密度、深度不变时,表面微凹坑造型试样摩擦因数随加载载荷增大而增加,说明高载荷工况下利用微凹坑造型改善耐磨性能效果不明显。磨痕形貌分析表明,低载荷工况下,合金表面微凹坑造型抗磨损效果明显。
In order to study the effects of surface micro-dimple on friction property of ZCuSnlOP1 bearing alloy, UMT-2 multiple function friction wear testing machine was used to test friction and wear property of bearing alloy under different process parameters. The effects of area density and dimple depth on friction coefficient were investigated, and effects of working condition on friction property was also discussed. The results showed that, there exist optimal value for area density and dimple depth for improving friction property, and when the area density is 10%, dimple depth is 5 p^m, the improvement effects is the best. Friction coefficient of mico-dimpled surface increase with increasing loading which indicates that it is not obvious to improve friction and wear at high load condition. By observing the friction and wear morphology, it is found that the anti-wear effects were apparent at low loading condition.
出处
《机械工程师》
2014年第8期107-109,共3页
Mechanical Engineer
关键词
表面微凹坑
摩擦磨损
往复运动
摩擦因数
surface micro-dimple
friction and wear
reciprocating motion
friction coefficient
