It is showed that by using the phenolic resin and the fiber , the clutch friction materials could be manufactured with good properties such as stable friction coefficient , low wear rate , high fade resistance at 350 , and suitable porosity 结果表明，采用三组份酚醛树脂和混杂纤维可以制备出摩擦性能良好， 350不发生热衰退的离合器摩擦材料，且材料具有合适的孔隙率。
The friction properties for dry spinning polyacrylonitrile fiber are studied , and the surface properties and friction factors include gliding , cohesive , the opu , fiber types and environment condition are analyzed 摘要对聚丙烯腈干法纺丝短纤维表面摩擦性能进行了研究，分析了纤维表面的形态与摩擦性能的关系，对影响纤维摩擦性能的纤维含油率、环境条件及纤维规格等因素进行了探讨。
The arctic fox wool , the shanxi sheep camel ' s hair , the angolan rabbit hair , the hair of nyctereutes ussurienusis mstscie were researched on the density , the compression performance , the friction performance and the stretch mechanics performance through the contrast analysis 摘要通过对北极狐绒毛、山西羊驼毛、安哥拉兔毛、乌苏里貉绒毛等的密度、卷曲性能、压缩性能、摩擦性能和拉伸力学性能的测试，分析了它们之间的差异。
The preparation parameters of both the porous aao template and carbon nanostructure synthesized on the template were obtained . the tribological properties of the film of well - aligned carbon nanotubes synthesized on the porous aao template at relatively low loads were also evaluated 论文探讨了多孔aao模板和在模板上纳米碳结构薄膜的制备工艺参数，并讨论了多孔aao模板上生成的定向纳米碳管薄膜在微载荷条件下的摩擦性能。
The main conclusions are drawn as follows : ( 1 ) for spray - forming ring of little thickness , densification results including friction mechanical property were investigated . after single - direction cyclic pressing , in the region near processing face , cavities close well and mechanical performances are better than those of region far from processing face 本论文的主要研究内容和研究结论如下: ( 1 )对单、双向楔压工艺加工厚度较小的喷射沉积al - 20 % si / sicp复合材料环件的致密化效果以及致密化加工后环件的摩擦性能进行了研究。
The degrees of crystallinity of pure ptfe under the different conditions of water cooling , air cooling and furnace - varying cooling were made comparison by xrd . the thermal stability of pure ptfe and solid lubricant was analyzed by dsc - tg ; the composition and valence state of elements in the surface of carbon fiber , solid lubricant before and after friction test and lubricant transfer film were characterized by xps ; the frictional property of solid lubricant was tested by pin and disk test rig . the frictional wear property of solid lubricant between embedded bearing sleeve and steel axle friction pair ring was tested by special simulate test machine , the hardness of solid lubricant was tested by pm ; the compression strength of solid lubricant was tested by material test machine 用sem表征原料微观结构、摩擦表面及润滑转移膜表面形貌：用xrd进行原料物相分析，及比较水冷却、空气冷却、随炉冷却三种工艺条件下的纯聚四氟乙烯树脂的结晶度；用dsc - tg分析纯聚四氟乙烯树脂及固体润滑剂的热稳定性；用xps表征碳纤维表面、固体润滑剂摩擦前后表面、润滑转移膜表面的元素组成、价态变化；用销盘式摩擦磨损试验机对固体润滑剂进行摩擦性能测试；采用专用的台架模拟试验机对固体润滑剂镶嵌轴承套与钢轴摩擦副间的摩擦磨损性能进行测定；用莱次偏光显微镜( pm )测试固体润滑剂的硬度；用材料试验机测试固体润滑剂的抗压强度等。
And also , the wear resistance at ambient temperature and of za27 alloyed with mn when lightly loaded is desirable but becomes worse at high temperature . the wear mechanism of the one mixed with both adhesive and abrasive wear under sliding friction conditions ( at high temperature ) Si的加入量为1 - 3时， za27合金的磨损量最少，高温摩擦性能最好；加入mn后， za27合金在低温轻载下耐磨性能较好，高温耐磨性能不理想；在滑动摩擦条件下(高温)的磨损以粘着磨损和磨料磨损两种方式共同存在。
Abstract : with the graphite content adjusted , a friction performanceexperiment is carried on the iron - base powder alloy brake material sample . the results show that the graphite increases with the decrease of the strength and the static friction coefficient of the material , while the dynamic friction coefficient increases correspondingly 文摘:调整铁基粉末合金刹车材料中的石墨含量，制成摩擦试样进行摩擦性能试验，结果表明材料中石墨含量增加，其强度会随之下降，摩擦系数也随之下降，而动摩擦系数则随之上升。
After looking up a large amount of native and foreign information , the materials used in the experiment were as follows : ptfe base , graphite filler , molybdenum disulfide filler , copper powder filler , carbon fiber and so on . the experimental method is that the formula was designed according to uniform experimental method , the relationship between formula and frictional property was found with spline function and then the representative test points were chosen from fitting curve to make verification test for optimization . the preparative technique of solid lubricant is cold - press sintering method 经过查阅大量国内外文献资料后确定原料为：聚四氟乙烯树脂为基体，加入石墨、二硫化钼、铜粉、碳纤维等填料；试验方法为：根据均匀试验方法设计配方，用样条函数找出配方与摩擦性能的关系，然后在拟合曲线上选取具有代表性的试验点进行验证试验，达到优化的目的；制备工艺：冷压烧结法制备固体润滑剂。
The results indicated that the dimension , shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c , but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased , melting temperature and decomposition temperature decreased , in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o , c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests . the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big . this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60 , 30 : 30 - 40 and 60 : 15 - 30 respectively , the friction coefficient was relatively small . the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time , the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle , lubricant transfer film could be formed on metal surface , thus direct contact between the surface of metal friction pair rings was reduced . their working life was elongated extremely ; there was mainly much graphite , a little ptff , moo3 , feso4 , cus and so on in lubricant transfer film 试验结果表明：所选原料的尺寸、形状及纯度可满足固体润滑剂的性能要求；聚四氟乙烯树脂热分解温度超过400 ，但在ptfe中加入无机填料会使复合材料吸水率提高，熔融温度及分解温度降低，且伴有氧化分解反应；碳纤维表面含有c = o及c - o - c等极性基团，有利于提高其与其它组分的相容性，提高层间剪切强度；均匀设计试验方法能够用较少的试验次数找出配方与摩擦性能间的关系，拟合曲线基本能表示各配方的摩擦系数发展趋势；配方中不加铜粉或不加石墨，其摩擦系数均较高，说明铜粉和石墨应该配合使用；当铜粉15份、石墨60份时，铜粉30份、石墨30 - 40份时，铜粉60 、石墨15 - 30份时，摩擦系数均具有较低值；纯聚四氟乙烯树脂在空气冷却时结晶度最大，磨损量也是三者中最大的；同时，固体润滑剂试样在空气冷却时的磨损量也是三者中最大的：不论是固体润滑剂与45 #钢轴配副或是固体润滑剂镶嵌入铜套后与gcr15钢轴配副，在金属表面均可形成润滑转移膜，从而减少金属摩擦副表面间的直接接触，大大延长其使用寿命;转移膜中主要含有较多的石墨、少量聚四氟乙烯、 moo 。
