在模拟发动机工况的条件下,研究了喷涂含有廉价固体润滑剂的气缸套摩擦特性。台架试验装置具有长的行程和大的接触宽度,用来获得等离子喷涂气缸套的摩擦数据。试验结果与传统的铸铁试样进行比较。试验数据表示为摩擦系数和曲轴转角为座标的曲线图。也研究了转速和温度的影响。与传统的铸铁气缸套比较,等离子喷涂气缸套具有较低的摩擦和较高的液力润滑倾向。 Under the condition of simulating engine operating conditions, the friction characteristics of cylinder liner with low cost solid lubricants were studied. The bench test rig has a long stroke and a large contact width for obtaining the friction data of the plasma sprayed cylinder liner. The test results are compared with the traditional cast iron samples. The test data is plotted as a function of friction coefficient and crank angle. Also studied the effects of speed and temperature. Compared with the traditional cast iron cylinder liner, plasma spraying cylinder liner has a lower friction and higher tendency to hydraulic lubrication.