Abstract
An experiment was conducted using a microslip friction test machine to measure reciprocating sliding friction between a K25 friction lining and a 6 × 19 steel wire rope under dynamic loading. Real-time in situ microscopic observation of the interfacial friction in the contact were performed by using a high-speed micro camera. The results showed that during the loading and unloading stages of friction, adhesion, partial adhesion and slip states were observed. The friction coefficient decreases with increasing dynamic load. In the lightly loaded area (3kN-10kN), the variation of the friction coefficient in the sliding stage was stable. In the heavily loaded area (3kN-14kN), the friction coefficient in the slip stage decreased with increasing load, and the proportion of the slip stage in the loading time increased. The wear debris generated at the interface of the contact increased gradually with increasing dynamic load. Then, a dense third body formed, which reduced the friction coefficient. The wear rate of the lining under these experimental conditions was 3.23 × 10–4 after 18 h.
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This project is supported by the National Natural Science Foundation of China (Grant No.51905237) and the Natural Science Foundation of Jiangsu Province (Grant No. BK20191000)
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Guo, Y., Zhu, Z., Zhang, D. et al. Real-Time In Situ Microscopic Observation of Dynamic Contact and Friction Between a Wire Rope and Friction Lining. Int. J. Precis. Eng. Manuf. 24, 447–459 (2023). https://doi.org/10.1007/s12541-022-00724-0
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DOI: https://doi.org/10.1007/s12541-022-00724-0