Abstract:The multiscale surface textures of microdimples and macrogrooves were produced with a Q switched lightpumped Nd: YAG laser using the laser processing technique called single pulse at a time, repeated at intervals. The morphology of the laser textured sample was measured with a 3D profiler. The tribological property of the mechanical seal with laserinduced multiscale surface textures was investigated under different sealing pressures and rotational speeds on a computeraided mechanical seals experimental device and compared with that without textures. The results showed that the regular microdimple and macrogroove textures can be produced on the surfaces of mechanical seal by laser. The tribilogical property of mechanical seal can be improved significantly by the laserinduced multiscale surface textures under the low pressure, low speed and high pressure, high speed conditions during the experiments. The textured mechanical seals exhibited a lower and stable friction torque compared with one without textures. The friction torque of the textured mechanical seal can be decreased by 65% at most. The reason for this is the surfaces textured significantly improve the lubrication condition of a mechanical seal, and the friction torque is decreased eventually.
纪敬虎, 符永宏, 王祖权, 华希俊, 符昊. 激光表面跨尺度织构化机械密封摩擦性能[J]. 排灌机械工程学报, 2012, 30(4): 452-456.
JI Jing-Hu, FU Yong-Hong, WANG Zu-Quan, HUA Xi-Jun, FU Hao. Tribological property of mechanical seal with laserinduced multiscale surface texturing. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(4): 452-456.
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