排灌机械工程学报2012，Vol.30Issue(4)：452-456,5.DOI:10.3969/j.issn.1674-8530.2012.04.015
激光表面跨尺度织构化机械密封摩擦性能
Tribological property of mechanical seal with laser-induced multi-scale surface texturing
摘要
Abstract
The multi-scale surface textures of micro-dimples and macro-grooves were produced with a Q switched light-pumped 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 laser-induced multi-scale surface textures was investigated under different sealing pressures and rotational speeds on a computer-aided mechanical seals experimental device and compared with that without textures. The results showed that the regular micro-dimple and macro-groove textures can be produced on the surfaces of mechanical seal by laser. The tribilogical property of mechanical seal can be improved significantly by the laser-induced multi-scale 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.关键词
机械密封/激光表面织构/跨尺度/摩擦性能/碳化硅Key words
mechanical seal/laser surface texturing/crossing dimension/tribological property/SiC分类
农业科技引用本文复制引用
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):452-456,5.基金项目
国家自然科学基金资助项目(51175233) （51175233）
江苏省高校科研果产业化推进项目(JHB2011-39) （JHB2011-39）
