表面粗糙度对环境友好润滑剂润滑性能的影响  

Effect of Surface Roughness on Lubrication Performance of Environment-friendly Lubricants

作　　者：蔡发达 彭文竹[1] CAI Fada;PENG Wenzhu(College of Chengyi,Jimei University,Xiamen Fujian 361021,China)

机构地区：[1]集美大学诚毅学院,福建厦门361021

出　　处：《曲靖师范学院学报》2023年第6期8-14,共7页Journal of Qujing Normal University

基　　金：福建省教育厅中青年教师教育科研科技类项目“基于物理模型的多幅图像去雾方法及其应用研究”(JAT191166)。

摘　　要：通过接触角测量仪及微摩擦磨损试验机考查了SiO_(2)试样表面粗糙度对环境友好润滑剂角鲨烷、季戊四醇油酸酯浸润性以及润滑性能的影响.结果表明:随着试样表面粗糙度的增加,润滑液体与试样表面接触角越大,浸润效果越差.角鲨烷润滑介质中,试样表面越粗糙,SiO_(2)-GCr15间的摩擦系数越大,试样表面磨损体积越大,摩擦副间的摩擦系数随时间先变大而后慢慢减小趋于稳定.季戊四醇油酸酯介质中,12min以后,试样表面越粗糙,摩擦副间的摩擦系数反而越小,随着试样粗糙度的增加,试样表面的磨损体积也随之减小.The effects of SiO_(2) surface roughness on the wettability and lubrication properties of environment-friendly lubricants squalane and pentaerythritol oleate were investigated by contact angle measuring instrument and micro-friction and wear testing machine.The results showed that with the increase of the surface roughness,the larger the contact angle between the lubricating liquid and the sample surface,the worse the wetting effect was.In squalane lubrication medium,the rougher the surface of the sample,the larger the friction coefficient between SiO_(2)-GCr15 is,and the bigger the wear volume of the sample.Besides,the friction coefficient between the friction pairs first increased and then slowly decreased with time,and tended to be stable finally.In pentathritol oleate medium,with the increase of the specimen roughness,the friction coefficient between the friction pairs turned into smaller after 12 minutes.As the roughness of the specimen increased,the wear volume of the specimen surface also decreased.

关 键 词：粗糙度 摩擦系数 浸润性 

分 类 号：TH117.2[机械工程—机械设计及理论]