SiO2粒度对铜基摩擦材料摩擦性能的影响
Effects of SiO2 Particle Size on Tribological Behaviors of Cu-based Friction Material
吴忠亮, 韩晓明, 符 蓉, 高 飞
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作者单位：(大连交通大学 轨道交通关键材料实验室, 辽宁 大连 116028)
中文关键字：铜基摩擦材料； 摩擦磨损； SiO2； 粒度
英文关键字：Cu-based friction material; friction and wear; SiO2; particle size
中文摘要：采用粉末冶金技术制备了铜-石墨-SiO2烧结材料，利用销-盘式摩擦试验机，在摩擦速度为7.8～47.1 m/s时，研究了SiO2粒度与材料摩擦性能的关系。结果表明，随着SiO2粒度的提高，摩擦系数变化不明显，磨损率降低。
英文摘要：Copper-graphite-SiO2 sintered materials were prepared using powder metallurgy technology. The relationship between particle size of SiO2 and tribological behaviors of the sintered materials was investigated by pin-disc-type friction tester under a series of friction velocity from 7.8 m/s to 47.1 m/s. The results show that with the increase of particle size of SiO2, the friction coefficient of the corresponding sintered materials does not change significantly, and the wear rate reduces.