压塑料制备技术对摩擦材料结构和性能影响  

The Influence of the Preparation Process of Compressed Molding Material on the Structure and Properties of Friction Materials

作　　者：王晓芳[1] 王劲松 高丰琴[1] 李庆庆 Wang Xiaofang;Wang Jinsong;Gao Fengqin;Li Qingqing(School of Chemistry&Chemical Engineering,Xianyang Normal University,Xianyang,Shaanxi 712000;China Building Material Test&Certification Group Xianyang Co.,Ltd.,Xianyang,Shannixi 712000)

机构地区：[1]咸阳师范学院化学与化工学院,陕西咸阳712000 [2]中国建材检验认证集团咸阳有限公司,陕西咸阳712000

出　　处：《非金属矿》2021年第3期14-16,20,共4页Non-Metallic Mines

基　　金：咸阳市科学研究计划项目(2017k02-18);咸阳师范学院“青蓝人才”培养计划项目(XSYQL201804)。

摘　　要：采用热压成型工艺制备树脂基摩擦材料,利用扫描电子显微镜(SEM)、定速摩擦试验机、洛氏硬度计等研究压塑料制备技术对摩擦材料显微结构、磨损性能和力学性能的影响。结果表明,粉末状与片状压塑料均可获得密实的摩擦材料显微组织。控制压塑料形状和尺寸可改善树脂基摩擦材料的热衰退性能和摩擦磨损稳定性,降低材料磨损率。当片状压塑料尺寸为10 mm×10 mm×2 mm时,摩擦材料综合性能较优,平均摩擦因数为0.39,平均磨损率为0.181×10^(-7) cm^(3)/(N·m),洛氏硬度为62.2 HRM,剪切强度为19.5 MPa。The resin-based friction materials were prepared by the hot pressing process.The impacts of pressing technology on the microstructure,friction and wear properties,mechanical properties of the friction materials were investigated by scanning electron microscope(SEM),wear tester and Rockwell hardness tester.The results showed that the compact microstructure was obtained from both powder and sheet compressed molding material.The thermal degradation property and friction and wear stability could be improved by controlling the shape and size of compression molding material,and the wear rate was reduced correspondingly in resin-based friction materials.When the size of the compressed molding material was 10 mm×10 mm×2 mm,the comprehensive properties of the friction materials were excellent,the average friction coefficient was 0.39,the average wear rate was 0.181×10^(-7) cm^(3)/(N·m),the Rockwell hardness was 62.2 HRM,and the shear strength was 19.5 MPa.

关 键 词：树脂基摩擦材料 压塑料 摩擦因数 磨损率 

分 类 号：TB332[一般工业技术—材料科学与工程]