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通过分析固体表面接触特性,得知摩擦力矩传递是由摩擦面的少数微凸体承担,它们承受的应力和热量为平均应力和热量的几十倍以上;分析摩擦片的冷却机理发现,现行的摩擦片冷却思路有缺陷。在此基础上,依据笔者提出的功能型摩擦材料概念和功能化处理技术,对新型坦克摩擦片进行功能化处理,使之转化成功能型摩擦材料。并利用物理模型,分析功能型摩擦材料自我调节摩擦面的热量分布,防止摩擦面局部区域温度过高的功能机理。坦克传动系统国防科技重点实验室台架试验表明,摩擦片经功能化处理后,摩擦性能保持不变,耐热性能提高50%,耐磨性能提高近3倍。
By analyzing the contact characteristics of the solid surface, we know that the friction moment transfer is borne by a few asperities of the friction surface, and the stress and heat they bear are several tens of times of the average stress and heat. Analyzing the cooling mechanism of the friction plate, Friction plate cooling ideas flawed. On this basis, based on the concept of functional friction material proposed by the author and the functionalized processing technology, the new type of tank friction plate is functionalized and transformed into functional friction material. The physical model was used to analyze the self-adjusting heat distribution of functional friction material and to prevent the functional mechanism of over-temperature in the frictional area. Tank drive system National Defense Key Laboratory of Science and Technology bench tests show that the friction plate after functional processing, the friction performance remains unchanged, heat resistance increased by 50%, wear resistance increased nearly 3 times.