为了寻求一种良好的真空轴承润滑方式,将六方氮化硼(h-BN)纳米颗粒作为全氟聚醚(PFPE)基润滑脂添加剂,制备PFPE/h-BN纳米颗粒复合润滑脂,对比测试国内外三种真空润滑脂的滴点、腐蚀和蒸发量等性能参数,通过表面织构技术对轴承材料表面进行处理,并利用摩擦磨损实验,综合考察了PFPE/h-BN纳米颗粒复合润滑脂在不同织构表面的润滑性能。结果表明,PFPE/h-BN纳米颗粒复合润滑脂有利于提高真空轴承的润滑性能,轴承材料表面织构处理后,提高了复合润滑脂摩擦磨损实验的稳定性,且降低了摩擦系数。
In order to find a good way to improve the lubrication performance of vacuum bearing,hexagonal boron nitride(h-BN) nanoparticles were used as perfluorinated polyether(PFPE)-based grease additives to prepare composite greases,and tested and compared the drop point,corrosivity and evaporation capacity of the grease.The bearing material was processed by the surface texture technology,and the lubricating performance of the composite grease on different textured surfaces was comprehensively investigated through the friction and wear test.The results shown that PFPE/h-BN nanoparticles composite grease shown good lubrication performance.After the surface texture treatment,the stability of the composite grease friction and wear test was improved,and the friction coefficient was lower than that without any treatment.
[1] 程亚洲,胡献国,徐玉福,等.空间润滑脂的研究进展[J].航天器环境工程,2013,30(1):14-19.
[2] 薛华.真空条件下可凝挥发物蒸发和凝结速率的分析[C].中国真空学会2008学术年会论文集,2008.
[3] Onate J,Brizuela M,Bausa M,et al.Vacuum tribology testing of alloyed MoS2 films at VTM model of TriboLAB[C].10th European Space Mechanisms and Tribology Symposium,2003.
[4] Shi S S,Wu H P,Song Y T,et al.Solid lubrication with MoS2-Ti-C films for high-vacuum applications in a nuclear fusion experimental device[J].Industrial Lubrication and Tribology,2018,70(1):155-160.
[5] Hampson M R,Roberts E W,Cropper M D,et al.Towards the effective solid lubrication of ball bearings operating at high temperature[J].Proceedings of the Institution of Mechanical Engineers Part J-Journal of Engineering Tribology,2008,222(8):1041-1049.
[6] 李琪,党兰生,周慧娟.合成基础油在润滑油中的性能与应用[J].石油商技,2011,29(2):9-15.
[7] 诸国建.烃基改性硅油润滑脂的制备及性能研究[J].有机硅材料,2013,27(1):15-19.
[8] 祁彦平,栗同林,郭贵贵.α-烯烃的生产工艺及应用[J].石化技术(1):57-60,77.
[9] Ohno N,Sonoda K,Tsuchida H,et al.Bearing fatigue life tests of two advanced base oils for spa ce applications under vacuum andatmospheric environments[J].Tribology Transactions,2011,54(6):859-866.
[10] 赵圣尉,刘强,寇红军,等.全氟聚醚润滑脂与4号真空酯在水中的比较[J].声学与电子工程,2019(4):20-22.
[11] 杨剑群,刘勇,王黎钦,等.PFPE脂润滑2Cr13钢摩擦副的真空摩擦磨损行为研究[J].摩擦学学报,2014,5:561-569.
[12] Katiyar J K,Sinha S K,Kumar A,Lubrication mechanism of SU-8/Talc/PFPE composite[J].Tribology Letters,2017,65:84.
[13] Street K W,Miyoshi K,Wal R.Application of carbon based nano-materials to aeronautics and space lubrication[J].Superlubricity,2007,11(5):311-340.
[14] Zhang S,Li Y,Hu L,et al.Anti wear effect of mo and w nanoparticles as additives for multialkylated cyclopentanes oil in vacuum[J].Journal of Tribology,2017,139(2):021607.
[15] 霍丽霞,周晖,苟世宁,等.无机类富勒烯MoS2对全氟聚醚润滑脂真空摩擦学性能的影响[J].润滑与密封,2013,5:83-86.
[16] Li Y,Dong G,Lu H,et al.An effective method of edge deburring for laser surface texturing of Co-Cr-Mo alloy[J].International Journal of Advanced Manufacturing Technology,2017,94(5-8):1-13.
[17] 黄仲佳,熊党生,李建亮,等.金属表面织构化微孔填充干膜润滑剂的摩擦学性能[J].材料保护2011,(6):7,38-40.
[18] Liu C,Lu Y J,Li S.Effect of surface texture on tribological performance of crankshaft bearing[J].Journal of Traffic & Transportation Engineering,2017,03:65-74.
[19] 李凤兰,鲍天骄,王彦,等.蒸发损失在航空润滑脂选材中的应用[J].测控技术,2013,32:351-354.
[20] 程亚洲,胡献国,徐玉福,等.空间润滑脂的研究进展[J].航天器环境工程,2013,30(1):14-19.
[21] 朱公志,高玉周,刘世永,等.羟基硅酸镁复合粉体润滑油添加剂对钢-钢摩擦副的抗磨自修复机理[J].摩擦学学报,2012,(2):183-188.
[22] 邱兆岭,陈文刚,环鹏程,等.表面织构参数对渗氮304钢在纳米微粒添加剂润滑油作用下摩擦特性的影响[J].材料导报,2018,32(18):122-127,134.
[23] 项欣.圆凹坑织构对线接触摩擦副摩擦学性能的影响[J].中国表面工程,2015,28(4):33-38.
[24] 刘强,林乃明,邹娇娟,等.改善钢铁材料摩擦学行为的表面织构研究现状[J].表面技术,2016(5):41-50.
[25] 秦立果,杨浩,刘斌,等.织构化表面改性及其在生物材料上的应用[J].表面技术,2018,47(9):10-20.
基金资助
国家自然科学基金(51705486);中国工程物理研究院院长基金(YZJJLX2018010);中国工程物理研究院创新发展培育基金(K1169-1919-TCF);四川省科技计划重点研发项目(2018G20110)
PDF
