Effect of low temperature on tribological characteristics and wear mechanism of wire rope
Effect of low temperature on tribological characteristics and wear mechanism of wire rope
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DOI：
10.1016/j.triboint.2021.107231
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发表时间：
2021-08-20
影响因子：
6.2
通讯作者：
Chen, Guoan
中科院分区：
文献类型：
--
作者：
Peng, Yuxing;Wang, Gaofang;Chen, Guoan
为探究低温环境下卷绕提升钢丝绳间的摩擦磨损特性，在自制试验机上对6×19+FC钢丝绳在干摩擦和油水润滑条件下的摩擦磨损特性进行了研究。结果表明，随着环境温度的降低，摩擦系数略有增加，干摩擦条件下，摩擦系数在零下25℃时达到最大值0.85。油水润滑下，摩擦系数、磨损面积和磨损深度均明显小于干摩擦下：磨损面积减少约3倍，磨损深度减少约7倍。同时，摩擦系数随着环境温度的降低先增大后减小，在零下15℃时达到最大值，约为0.35。此外，随着温度的降低，干摩擦下钢丝绳的磨损机制由氧化磨损、磨粒磨损转变为疲劳磨损、粘着磨损。但在油水润滑下，钢丝绳的氧化磨损减弱，粘着磨损现象先加剧后减弱。此外，根据绳索在不同运行状态下的磨损特征参数的变化情况以及不同温度下的磨损机理，预测了绳索在不同参数（温度、速度、载荷）下的磨损程度图。
To explore friction and wear characteristics between hoisting ropes in winding under low-temperature environment, the friction and wear characteristics of 6 x 19 + FC wire rope under dry friction and oil-water lubrication conditions were investigated on a self-made tester. The results show that the friction coefficient increases slightly with the decrease of ambient temperature and reaches the maximum value of 0.85 at - 25 degrees C under dry friction. Under the oil-water lubrication, the friction coefficient, wear area, and wear depth are significantly smaller than those under the dry friction: the wear area decreases by approximately 3 times, and the wear depth decreases by approximately 7 times. Meanwhile, the friction coefficient first increases and then decreases with the decrease of ambient temperature, and reaches the maximum value at - 15 degrees C, approximately 0.35. Furthermore, with the decrease of temperature, the wear mechanism of wire rope under dry friction changes from oxidation wear and abrasive wear to fatigue wear and adhesion wear. However, under oil-water lubrication, the oxidation wear of the wire rope is weakened, and the adhesion wear phenomenon is first aggravated and then weakened. In addition, according to the variation of the wear characteristic parameters of the rope in different operating states and the wear mechanism at different temperatures, the wear degree map of the rope under different parameters (temperature, speed, load) is predicted.