【作者】 林伟；

【导师】 高诚辉；

【作者基本信息】 福州大学 ， 机械设计与理论， 2003， 硕士

【摘要】 本文充分利用纤维之间的混杂效应和福建特产Y-3填料，研制具有最佳性价比的多纤维混杂增强复合摩擦材料。通过两次正交试验和一系列调整试验，研究了纤维、树脂和填料在多纤维增强复合摩擦材料中作用和影响。结果表明，钢纤维与芳纶纤维、碳纤维与硅酸铝纤维之间有明显的混杂效应，对摩擦系数起着十分重要的作用，碳纤维、芳纶纤维自身由于其良好的特性，对摩擦系数也有较大的影响，木纤维在高温时碳化，起到与碳纤维类似的作用，Y-3填料是一种优良的填料，它的含量增加可以提高摩擦系数的稳定性和耐磨性能。在研究各种纤维、树脂和填料对混杂纤维复合摩擦材料摩擦学性能影响的基础上，本文研制开发出分别适用于中重型车与中小型车用的刹车摩擦材料的最佳配方和一种含木纤维的多种纤维混杂复合摩擦材料的最佳配方。将所选配方的刹车材料与市售的国内外品牌刹车片进行对比，结果表明本课题所开发研制的摩擦材料的摩擦系数都在0.35左右，具有很好的摩擦系数稳定性和抗热衰退性，磨损率也较小，综合考虑到配方试样原料成本较低，在性价比上具有一定的优势。运用SEM观测磨损表面形貌，探讨摩擦磨损机理。认为转移膜的形成令磨损表面更加光滑，有利于改善摩擦材料的耐磨性能。更多还原

【Abstract】 The purpose is to develop a kind of frictional composite with better tribological properties based on multi-fibers by considering hybrid effect ,the material performance and making full use of Y-3 filler which is the special local product in Fijian province.The effect of fibre, resin, and filler in multi-fibres hybrid frictional composite were researched by the two interactive experiments and other adjust experiments. As the results ,there are distinct hybrid effect between the steel fibre and Kevlar fibre, carton fibre and aluminum silicate fiber, which is important to the friction coefficient. The carton fibre and Kevlar fibre also have big influence to the friction coefficient for their good characters .The wood fibre has the same character as the carton fibre in the high temperature, Being a kind of excellent filler Y-3 filler helps to improve the friction stability and wear-resistance of the friction material by increasing its content.Two kind of brake material formula can be achieved for heavy automobile and light automobile separately. And another brake material formula also can be achieved in which the carbon fiber was replaced by the wood fiber based on the researching of the effect of fibre, resin and filler in multi-fibres hybrid compositeTest result shows that the formula material have a relatively suitable friction coefficient (ranging around 0.35), good fade resistance and recovery as well as low wear ratio .by comparing the formula material with the product of national and abroad sold in the market, its low cost and excellent properties make a bright prospect.Simultaneity the friction mechanism was investigated based on the surface morphology inspected by SEM. The transfer film make the surface more smooth and decrease the wear ratio greatly.更多还原