(1. 中南大學(xué) 粉末冶金國家重點實驗室，長沙 410083;
2. 湖南博云汽車制動材料有限公司，長沙 410205)
摘 要: 腰果殼油摩擦粉是樹脂基摩擦材料中廣泛應(yīng)用的摩擦性能調(diào)節(jié)劑。通過改變摩擦材料中腰果殼油摩擦粉組分含量，研究腰果殼油摩擦粉對樹脂基摩擦材料的理化、機械、摩擦磨損及制動噪聲性能的影響。結(jié)果表明:隨著摩擦粉含量增加，摩擦材料的氣孔率、壓縮變形量增大，pH值、密度、硬度和沖擊強度減小。通過執(zhí)行SAE J2521和SAE J2522程序進行臺架實驗，表明摩擦粉的加入可提高并穩(wěn)定摩擦材料的摩擦因數(shù)，同時有效降低剎車片制動過程噪聲發(fā)生概率。摩擦材料中摩擦粉添加量7%(質(zhì)量分數(shù))時，摩擦材料沖擊強度3.36 kJ/m2，名義摩擦因數(shù)0.36，平均磨損厚度0.53 mm，噪音發(fā)生概率為14.4%，剎車片綜合性能最佳。
關(guān)鍵字: 腰果殼油摩擦粉;樹脂基;摩擦材料;摩擦磨損
（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
