摘要
对车辆制动用铜锡合金摩擦材料进行力学特性、摩擦性能及摩擦表面表征,分析了不同铜锡合金添加量对车辆制动用摩擦材料性能的影响。结果表明：随着铜锡合金添加量的增加,摩擦材料的密度逐渐增加,pH值基本保持不变;硬度先提高后降低,压缩应力先降低后提高,剪切强度变化不大。随着制动压力的增加,所有样品的摩擦因数呈降低趋势。添加15%（质量分数）铜锡合金的样品表面形成了比较完整的摩擦膜,但摩擦过程中出现了一定程度的剥落。
The mechanical properties,friction properties and friction surfaces of copper-tin alloy friction materials for vehicle braking were characterized,and the effects of different copper-tin alloy additions on the performance of friction materials were analyzed. The results show that the density of friction materials gradually increases,and the pH value remains almost unchanged,the hardness first increases and then decreases,compressive stress first decreases and then increases,and shear strength changes little with the increase of Cu-Sn alloy content. With the increase of brake pressure,the friction coefficient of all samples decreases. A relatively complete friction film is formed on the surface of the sample with 15%（mass percent）copper-tin alloy,but the friction film peels off to some extent.
作者
刘丽娜
张明明
LIU Li-na;ZHANG Ming-ming(School of Electromechanical Engineering,Huanghe Jiaotong Uuniversity,Jiaozuo 454950,China;College of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《粉末冶金工业》
CAS
北大核心
2018年第4期52-55,共4页
Powder Metallurgy Industry
关键词
铜锡合金
摩擦材料
力学特性
摩擦性能
copper-tin alloy： friction material
mechanical property
friction performance
