为使钎料具有良好的钎焊性能、抗咬合性、耐腐蚀性和塑性 ,同时又具有良好的耐磨性能 ,以满足修复的要求 ,设计了新型的 Pb- Sn基耐磨钎料。模拟小型柴油发动机曲轴油封部位的工作状态 ,对该钎料进行了模拟磨损试验 ,并分析了该钎料合金基体组织结构及硬质相对其耐磨性能的影响。试验结果表明 :9号钎料合金 ( Sn65%、Sb3%、Cu1 .3%、RE1 .2 %、Pb余量 )的耐磨性能最好 ,可以用作中速运动零件磨损后的临时性抢修。 In order to make the solder have good brazing performance, seizure resistance, corrosion resistance and plasticity, as well as good wear resistance, to meet the repair requirements, designed a new type of Pb-Sn-based wear-resistant solder. The working status of the crankshaft oil seal part of a small diesel engine was simulated. The simulated wear test of the solder was carried out. The influence of the microstructure and hardness of the solder alloy matrix on the wear resistance was analyzed. The experimental results show that the wear resistance of Sn-9 solder alloy (Sn65%, Sb3%, Cu1.3%, RE1.2%, Pb) is the best and can be used as a temporary repair after wear of medium-speed moving parts .