在用柴油机油的热重分析  

Thermogravimetric-Analysis of Used Oils from Diesel Engines

作　　者：杜大昌[1] 严永年[1] 

机构地区：[1]后勤工程学院油品应用教研室

出　　处：《润滑与密封》1992年第5期12-16,共5页Lubrication Engineering

摘　　要：本文用热量分析法研完了在用柴油机油的老化规律,通过与新油的比较,发现使用过程中润滑油分子量在变化,既用聚合物的生成,又有低沸点小分子的产生。不同发动机及不同油的老化趋势有差别。Used oil from diesel engine are analyzed with thermogravimetric(TG)method in the law of their aging in this paper.Compared with those oftheir new oils,molecular weight of the used oils varies with engine running hours.Owing to different new oils and engines,there are differences in the trend of de-gradation.Temperature at oils oils oxidatioin point and oxidation products (except forNo.4 engine) increase with their service hours in TG curves.

关 键 词：热重分析 在用柴油机油 降解 

分 类 号：TK428.9[动力工程及工程热物理—动力机械及工程]