作　　者： ; ; ;

机构地区： 中南大学材料科学与工程学院粉末冶金国家重点实验室

出　　处： 《粉末冶金技术》 2007年第5期340-343,共4页

摘　　要： 树脂基复合材料性能优异,被大量用做汽车制动材料。以酚醛树脂为基体,钢纤维为增强纤维,添加填料,采用热压法制成刹车片,并进行摩擦试验。通过试验研究了酚醛树脂基复合材料中钢纤维不同添加量（质量分数）对复合材料冲击强度、摩擦性能的影响。结果表明：该配方类型中,在100-300℃温度范围内,材料冲击强度先增大后减小,钢纤维质量分数为24%时为转折点;材料的摩擦系数先增大后减小,钢纤维质量分数为26%时为转折点;磨损率随钢纤维添加量的增加而增大,钢纤维最佳添加量为24%-26%。 　Due to excellent performance,fiber reinforced resin-based composites are largely applied in brake materials.Brake discs were made by hot pressing phenolic resins,steel fiber and filling materials and friction test was carried out.The influence of different content of steel fiber on impact strenghth and friction performance of phenolic resin-based fiber-reinforced composite was studied.The results show： in the temperature range of 100℃ to 300℃,the impact strength first increase then decrease with increasing steel fiber content,and the turning point is at steel fiber content of 24%;friction coefficient show the same trend,and turning point is at 26%;wear ratio increase with increasing steel fiber content,so the best content of steel fiber is 24% to 26%.

关 键 词： 树脂基 摩擦材料 钢纤维 摩擦系数 磨损率

领　　域： [机械工程]