摘要
研究了抗氧剂L57(辛基/戊基二苯胺)和L135(高相对分子质量液体酚)对复合磺酸钙基润滑脂表面硬化的影响,采用MFT-R4000高速往复摩擦磨损实验仪,考察了添加剂对复合磺酸钙基润滑脂放置40天后的摩擦学性能的影响,并借助扫描电子显微镜和能谱分析仪对磨斑表面形貌进行表征。结果表明,加入抗氧剂L57和L135能够减缓复合磺酸钙基润滑脂锥入度的变化速率,改善表面硬化情况,并可提高复合磺酸钙基润滑脂的减摩抗磨性能,放置40天后润滑脂的摩擦因数曲线依然平稳,且保持良好的摩擦学性能,其中以加入2%L57或2%L135时效果较为明显。
The surface hardening of overbased calcium sulfonate complex grease containing different concentrations of anti-oxidant L57 and L135 was studied. The tribology of the grease containing different additives was investigated using MFT-R 4000 reciprocating friction tester after 40 days storage. The worn surface was observed by scanning electron microscope （SEM） and energy spectrum analysis. The results show that antioxidants can postpone the surface hardening of the grease tested and the complex greases containing 2% L57 and 2% L135 have a better tribology performance.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2014年第7期82-86,共5页
Petroleum Processing and Petrochemicals
关键词
抗氧剂
复合磺酸钙润滑脂
摩擦
磨损
锥入度
anti-oxidant
overbased calcium sulfonate complex grease
friction
wear
cone penetration
