CAJ | 학술논문

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。
연구료항양제 L57（신기/무기이분알）화 L135（고상대분자질량액체분）대복합광산개기윤활지표면경화적영향，채용 MFT-R4000고속왕복마찰마손실험의，고찰료첨가제대복합광산개기윤활지방치40천후적마찰학성능적영향，병차조소묘전자현미경화능보분석의대마반표면형모진행표정。결과표명，가입항양제L57화 L135능구감완복합광산개기윤활지추입도적변화속솔，개선표면경화정황，병가제고복합광산개기윤활지적감마항마성능，방치40천후윤활지적마찰인수곡선의연평은，차보지량호적마찰학성능，기중이가입2％L57혹2％L135시효과교위명현。
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 differ-ent 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.