聚四氟乙烯涂层在高载荷条件下的摩擦学性能研究  

Study on Friction Behavior for PTFE Coatings under Overload Conditions

作　　者：侯根良[1] 乔小平[1] 苏勋家[1] 王延斌[1] 梅振兴[1] 徐可为[2] 

机构地区：[1]第二炮兵工程学院,陕西西安710025 [2]西安交通大学金属材料强度国家实验室,陕西西安710049

出　　处：《润滑与密封》2007年第6期84-86,共3页Lubrication Engineering

摘　　要：制备了以45#钢为基体的聚四氟乙烯（PTFE）涂层,利用自制的高载荷条件下摩擦因数测试装置研究了PTFE涂层的摩擦学性能,结果表明：PTFE涂层在4~90MPa范围内具有优良的减摩性能,最低摩擦因数为0.032。正压力与摩擦因数服从负指数衰减模型（Fit Exponential Decay）,随着载荷的增加,静摩擦因数和滑动摩擦因数先迅速降低,然后趋于定值。PTFE coatings were sprayed on 45 carbon steel. In order to investigate the friction behavior of the PTFE coating in overloading conditions, the self-designed friction tester was employed to test the static and slippage friction coefficient. The experimental results show that with the contact pressure range from 4 to 90 MPa, the P＇ITE coatings have excellent friction-reduction capacity, the lowest friction coefficient is 0. 032. The experimental data were fitted, the fitting results show that the pressure and the friction coefficient are consistent with the exponential decay, as the contact pressure increase, the static friction coefficient and slippage friction coefficient decrease quickly at first, then they become stable.

关 键 词：聚四氟乙烯 涂层 高载荷 摩擦因数 拟合 

分 类 号：TH117.1[机械工程—机械设计及理论]