【摘要】 根据固体润滑机理设计了水轮发电机镶嵌轴承用固体润滑剂配方 ,对不同冷却条件下的产品进行摩擦磨损性能试验、台架模拟试验 ,用扫描电镜 (SEM)对摩擦表面形貌进行分析。试验结果表明 :以聚四氟乙烯为主体的固体润滑剂在金属表面可形成润滑转移膜 ;在水轮发电机特殊工况下 (高载荷、往复运动 ) ,固体润滑剂中的填料 (纤维 )在摩擦过程中出现局部取向现象 ,增加承载能力 ;当树脂与填料用量相近时 ,复合材料成型冷却条件对摩擦系数、磨损量的影响不明显 ;在铜套中镶嵌固体润滑剂可明显降低铜套与钢之间的摩擦系数与磨损量。更多还原

【Abstract】 According to the lubricating mechanism, a formulation of composite material is designed for the embedded bearings on the hydraulic generator. Tests of wear and friction are made under different cooling conditions.Also,simulating test are carried out. Scanning electron microscopy(SEM) is utilized to examine composite microstructures .Wear testing and SEM analysis show that continual transfer-film of solid lubricants between frictional couples can be formed on the surface of metal. When hydraulic generator works under special conditions,stuffs have certain local tropism,so it can support more load .When resin and fills are approximate in quantity,the cooling conditions have little influence on friction factor and wearing capacity of solid-lubrication. Friction factor and wearing capacity of solid-lubrication for the embedded bearings, between copper set and steel, can be lowed obviously. These results play an important part for the future research.更多还原