不同初始黏度PAO油的黏温特性  

Viscosity-temperature characteristics of PAO lubricating oils with various original viscosities

作　　者：王燕霜[1] 盛排排 刘跃龙 李少川 

机构地区：[1]天津职业技术师范大学机械工程学院,天津300222

出　　处：《天津职业技术师范大学学报》2017年第4期29-31,37,共4页Journal of Tianjin University of Technology and Education

基　　金：国家自然科学基金资助项目(51475143);天津市自然科学基金资助项目(16JCYBJC18900)

摘　　要：利用SYP1003型运动黏度测量器,测量了不同初始黏度PAO油在不同温度下的运动黏度。根据不同初始黏度PAO油随温度的变化关系绘制了温度-黏度曲线图,确定了4种不同初始黏度的PAO油在Walther-ASTM模型下的黏温表达式。结果表明:初始黏度越高的PAO油,其黏度随温度的变化越敏感,黏温特性越差。整体来说,温度越低时PAO油的黏度越大,尤其温度低于60℃时,初始黏度对黏温特性影响较大。当温度高于某个值后,即使初始黏度不同的PAO油,其黏温特性也会趋于一致。The kinematic viscosities of PAO lubricating oils with various original viscosities were measured by SYP1003 kinematic viscosity measuring instrument at different temperatures. According to the variation of viscosity versus tempera- ture, the temperature-viscosity curves were plotted and analyzed. The viscosity-temperature expressions were determined under the Walther-ASTM model. The results show that the higher the original viscosity of the PAO is, the worse the viscosi- ty-temperature characteristic is. The original viscosity of the PAO has important effect on its viscosity-temperature charac- teristic when the temperature is below 60℃.

关 键 词：运动黏度 黏温特性 PAO油 

分 类 号：TE626.3[石油与天然气工程—油气加工工程]