利用数显式高速环块摩擦试验机,对赛龙轴承试块/镀镍钢环配副,分别在干摩擦、湿润滑、海水润滑条件下,进行摩擦磨损试验研究,分析赛龙轴承的摩擦磨损性能。结果表明:赛龙干摩擦时的平均摩擦因数为0.4左右,相对其他非金属材料,赛龙的干摩擦性能较好,但赛龙不耐高温,高温时材料表面会被破坏生成丝状磨屑;湿润滑时赛龙的摩擦因数比干摩擦时的低,说明湿润滑时已处于边界润滑状态;海水润滑时摩擦因数较低,此时润滑状态逐渐变为完全流体动压润滑状态。正交试验结果表明,干摩擦和湿润滑时,转速变化对摩擦因数的影响较大;海水润滑时,载荷变化对摩擦因数影响较大。
The tribological properties of thordon under dry friction,wet lubrication,seawater lubrication were investigated on high-speed ring-block tribological tester.The abrasion mechanism of thordon-steel rubbing pair was analyzed.The results show that the friction coefficient of thordon is about 0.4 under dry friction and its performance is better than other nonmetal materials under dry friction.Thordon has poor property of high temperature resistance,the contact surface is destructed to produce filiform abrasive dust under high temperature.The friction coefficient of thordon in wet lubrication is lower than in dry friction which shows boundary lubrication state.The friction coefficient is the lowest under seawater lubrication,there is hydrodynamic lubrication turned into gradually.The results by orthogonal analytic method show during dry and wet lubrication,the influence of changes in speed to friction coefficient is higher,and in seawater lubrication,the influence of changes in load to friction coefficient is higher.