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采用微米级锡粉与Li基脂、VG32号油混合制备出锡基半流体脂,在改进后的MS-800型四球式摩擦磨损试验机上,对锡基半流体脂润滑下的钢-铜摩擦副进行摩擦试验.采用俄歇电子能谱仪分析了铜试样表面的化学组成及其表面元素分布,用扫描电子显微镜分析了锡脂在铜表面形成修复涂层的厚度及其表面形貌,并与传统润滑抗磨剂ZDTP(T-202)、氯化石蜡(T-301)进行对比.结果表明,所研制的活性锡基半流体脂能够在铜试样表面摩擦形成富含单质锡的较厚涂层(约20μm),且减摩抗磨特性良好,比传统的润滑抗磨剂具有更优异的摩擦学性能.
The tin based semi-fluid grease was prepared by mixing micron tin powder with Li base grease and VG32 oil. The friction coefficient of the steel-copper friction under the lubrication of the tin-based semi-fluid was improved on a modified MS-800 four-ball friction and wear tester. The friction test was carried out.Using Auger electron spectroscopy to analyze the chemical composition and the surface elemental distribution of the copper sample surface, the thickness and surface morphology of the repaired coating formed on the copper surface by tin grease were analyzed by scanning electron microscopy, (T-202) and chlorinated paraffin (T-301). The results show that the active tin-based semi-fluid grease can be frictionally formed on the surface of copper sample to form elemental tin Thicker coating (about 20μm), and anti-friction and anti-wear properties of the better than the traditional lubricating anti-wear agent has more excellent tribological properties.