增强纤维含量对汽车摩擦材料性能的影响  

Relationship Between Fiber Content and Properties of Automotive Friction Materials

作　　者：刘震云[1] 黄伯云[1] 苏堤[1] 李度成[1] 

机构地区：[1]中南工业大学粉末冶金研究所,湖南长沙410083

出　　处：《摩擦学学报》1999年第4期322-326,共5页Tribology

基　　金：国家科委重点科技攻关项目!(96-A08-02-02)

摘　　要：研究了混杂纤维增强材料对汽车摩擦材料的机械性能及摩擦磨损性能的影响．结果表明：摩擦材料的冲击强度、三点弯曲断裂强度及硬度随纤维含量的增加而提高，并均达到使用要求；纤维含量对摩擦系数和磨损率影响较大，含体积分数１０％ 混杂纤维的材料具有较高的摩擦系数和较低的磨损率；ＳＥＭ 及ＥＤＡＸ分析表明，其磨损机理亦与增强纤维含量密切相关．The relationship between reinforcing fiber content and friction coefficient, wear rate, impact stress and hardness of automotive friction materials was studied with D MS and MM 1000 testers and SEM as well. It is found that the impact strength,bending strength and hardness increase as the fiber content increases. The friction coefficient and wear rate are closely dependent on the reinforcing fiber content. When the volume fraction of fiber is 10%, the friction material has high and stable friction coefficient, low wear rate and acceptable impact strength and hardness. Moreover, the wear mechanisms of the friction materials are also related with the volume fraction of the reinforcing fiber.

关 键 词：汽车 摩擦材料 增强纤维 摩擦磨损 

分 类 号：U465.1[一般工业技术—材料科学与工程]