(1. 中南大学 粉末冶金国家重点实验室，长沙 410083;
2. 湖南博云汽车制动材料有限公司，长沙 410205)
摘 要: 腰果壳油摩擦粉是树脂基摩擦材料中广泛应用的摩擦性能调节剂。通过改变摩擦材料中腰果壳油摩擦粉组分含量，研究腰果壳油摩擦粉对树脂基摩擦材料的理化、机械、摩擦磨损及制动噪声性能的影响。结果表明:随着摩擦粉含量增加，摩擦材料的气孔率、压缩变形量增大，pH值、密度、硬度和冲击强度减小。通过执行SAE J2521和SAE J2522程序进行台架实验，表明摩擦粉的加入可提高并稳定摩擦材料的摩擦因数，同时有效降低刹车片制动过程噪声发生概率。摩擦材料中摩擦粉添加量7%(质量分数)时，摩擦材料冲击强度3.36 kJ/m2，名义摩擦因数0.36，平均磨损厚度0.53 mm，噪音发生概率为14.4%，刹车片综合性能最佳。
关键字: 腰果壳油摩擦粉;树脂基;摩擦材料;摩擦磨损
（1. State Key Laboratory of Powder Metallurgy,Central South University, Changsha 410083, China;
2. Hunan Boyun Automobile Brake Material Co., LTD., Changsha 410205, China）
Abstract:Cashew dust is a very important organic filler in the friction materials industry due to its respective characteristic. The effects of cashew dust on physical, chemical, friction, wear and noise performances of resin-based friction material were studied. The results show that apparent porosity and compression deformation of friction material are improved, as well as pH, density, hardness and impact strength are reduced with the increase of cashew dust content. The results of bench test using SAE J2521 and SAE J2522 test procedure show that the use of cashew dust makes stability of friction coefficient become more stable or friction coefficient become higher, which can reduce probability of noise occurrence during the braking period. Through analyzing the experimental results, when the content of cashew dust is 7% (mass fraction), the overall properties of friction material are the optimum:the impact strength is 3.36 kJ/m2, the average coefficient of friction is 0.36, the thickness loss is 0.53 mm, the noise frequency is 14.4%.
Key words: cashew dust; resin based; friction material; friction and wear
