文章摘要
巫宗萍,范敬辉,徐 勇.热氧老化对阀门用二硫化钼润滑脂摩擦性能的影响[J].润滑与密封,2014,39(10):125-127
热氧老化对阀门用二硫化钼润滑脂摩擦性能的影响
  
DOI:10.3969/j.issn.0254-0150.2014.10.026
中文关键词: 热氧老化  二硫化钼润滑脂  摩擦性能  阀门
英文关键词: thermal-oxydative ageing  molybdenum disulfide lubricating grease  friction performance  valve
基金项目:国防科工局技术基础科研项目(Z112012B001).
作者单位E-mail
巫宗萍 中国工程物理研究院总体工程研究所 zhangkaiwzp@163.com 
范敬辉 中国工程物理研究院总体工程研究所  
徐 勇 中国工程物理研究院总体工程研究所  
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中文摘要:
      利用时温等效原理,制定阀门用二硫化钼润滑脂的加速老化试验条件,并进行等效25 ℃条件下6年和10年的加速老化试验。在自行设计的模拟阀门试验件力传递效率测试装置上,研究不同条件热氧老化后二硫化钼润滑脂润滑下阀门螺纹的拧紧力矩系数。研究结果表明,在新型手动阀门中使用的二硫化钼润滑脂具有良好的耐老化性能,等效10年自然老化的润滑脂的摩擦性能与新润滑脂的摩擦性能相当,可以满足10年的使用要求。
英文摘要:
      The accelerated ageing test conditions of molybdenum disulfide lubricating grease in valves were established through time-temperature equation, and the accelerated ageing tests with equivalent 25 ℃ for six years and ten years were carried out.The screw tightening torque coefficients of simulation valves for the molybdenum disulfide lubricating greases with different aging conditions were obtained on the self-made test equipment for force transfer efficiency of simulation valves. The results show that the molybdenum disulfide lubricating grease used in new manual valves has excellent ageing resistance properties. The friction performance of molybdenum disulfide lubricating grease after equivalent ageing test for ten years is similar to the molybdenum disulfide lubricating grease without ageing. The molybdenum disulfide lubricating grease in valves can satisfy the application demand of ten years.
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