机械工程学报
機械工程學報
궤계공정학보
CHINESE JOURNAL OF MECHANICAL ENGINEERING
2015年
15期
61-66
,共6页
葛翔宇%夏延秋%冯欣%宋玉旺%樊小强
葛翔宇%夏延鞦%馮訢%宋玉旺%樊小彊
갈상우%하연추%풍흔%송옥왕%번소강
电力复合脂%摩擦磨损%锂盐%电导率%体积电阻率%接触电阻
電力複閤脂%摩抆磨損%鋰鹽%電導率%體積電阻率%接觸電阻
전력복합지%마찰마손%리염%전도솔%체적전조솔%접촉전조
conductive grease%friction and wear%lithium salts%conductivity%volume resistivity%contact resistance
以三种锂盐:四氟硼酸锂(LiBF4)、六氟磷酸锂(LiPF6)和双三氟甲烷磺酰亚胺锂(LiNTf2)作为锂基润滑脂导电剂制得了三种电力复合脂。分别采用 DDSJ-308A型电导率仪,GEST-121型体积表面电阻率测试仪和HLY-200A型回路电阻测试仪对电力复合脂的导电性进行了测试。并采用Optimol SRV-I型振荡往复摩擦磨损试验机对电力复合脂在室温下的摩擦学性能进行了测试。结果表明,三种锂盐可以提高润滑脂的导电性,还可以改善润滑脂的摩擦学性能。利用Micro-XAM3D 轮廓扫描仪测量了磨痕体积,采用扫描电子显微镜和PHI-5702型多功能X射线光电子能谱仪对磨损表面进行了表征和分析。分析结果表明,在摩擦过程中形成了包含吸附膜和化学反应膜的边界膜,使得减摩抗磨性能得到了改善。
以三種鋰鹽:四氟硼痠鋰(LiBF4)、六氟燐痠鋰(LiPF6)和雙三氟甲烷磺酰亞胺鋰(LiNTf2)作為鋰基潤滑脂導電劑製得瞭三種電力複閤脂。分彆採用 DDSJ-308A型電導率儀,GEST-121型體積錶麵電阻率測試儀和HLY-200A型迴路電阻測試儀對電力複閤脂的導電性進行瞭測試。併採用Optimol SRV-I型振盪往複摩抆磨損試驗機對電力複閤脂在室溫下的摩抆學性能進行瞭測試。結果錶明,三種鋰鹽可以提高潤滑脂的導電性,還可以改善潤滑脂的摩抆學性能。利用Micro-XAM3D 輪廓掃描儀測量瞭磨痕體積,採用掃描電子顯微鏡和PHI-5702型多功能X射線光電子能譜儀對磨損錶麵進行瞭錶徵和分析。分析結果錶明,在摩抆過程中形成瞭包含吸附膜和化學反應膜的邊界膜,使得減摩抗磨性能得到瞭改善。
이삼충리염:사불붕산리(LiBF4)、륙불린산리(LiPF6)화쌍삼불갑완광선아알리(LiNTf2)작위리기윤활지도전제제득료삼충전력복합지。분별채용 DDSJ-308A형전도솔의,GEST-121형체적표면전조솔측시의화HLY-200A형회로전조측시의대전력복합지적도전성진행료측시。병채용Optimol SRV-I형진탕왕복마찰마손시험궤대전력복합지재실온하적마찰학성능진행료측시。결과표명,삼충리염가이제고윤활지적도전성,환가이개선윤활지적마찰학성능。이용Micro-XAM3D 륜곽소묘의측량료마흔체적,채용소묘전자현미경화PHI-5702형다공능X사선광전자능보의대마손표면진행료표정화분석。분석결과표명,재마찰과정중형성료포함흡부막화화학반응막적변계막,사득감마항마성능득도료개선。
Three kinds of conductive grease are prepared by adding three lithium salts, including lithium tetrafluoroborate (LiBF4), lithium hexafluorophosphate (LiPF6) and lithium bis (trifluoromethane sulfonamide) (LiNTf2) in lithium grease. The electrical conductive properties of the prepared conductive greases are evaluated by using a DDSJ-308A conductivity meter, a GEST-121 volume surface resistance tester and a HLY-200A circuit resistance tester, respectively. And the tribological behaviors of three kinds of lithium salts are investigated by an Optimol SRV-I oscillating reciprocating friction and wear tester at room temperature (RT). The results demonstrate that the addition of lithium salts can enhance the lithium grease conductivity and also dramatically improve the tribological properties of lithium grease, the wear volumes are valued by Micro-XAM3D noncontact surface mapping profiler, wear surface are characterized and analyzed based on scanning electron microscope (SEM) and PHI-5702 multifunctional X-ray photoelectron spectrometer (XPS). The results indicate the improvement of tribological properties should attribute to the formation of boundaryfilm consisting of both absorptionfilm and chemical reactionfilm.