论文部分内容阅读
一、高性能化是时代的需要 当代的机械设备向着体积小、重量轻、效率高、寿命长的方向发展;内燃机朝着高热效率、高转速、重负荷的方向发展。新机器对润滑油不断提出新的要求,迫使油品不断更新换代。在粘度等级方面,总的趋势是低粘度、多级油。多级汽油机油的市场占有率在日本几乎是100％,美国是85％。另外,由于内燃机的发展,对油品提出了低粘度、低挥发度、大跨度的要求,带来了酯类、聚α烯烃、加氢裂化油以及异构化烷烃等极高粘度指数基础油的迅速发展,润滑油的高性能化进入了一个新时代。
First, high-performance is the need of the times Contemporary machinery and equipment toward the small size, light weight, high efficiency, long life direction; internal combustion engine toward high thermal efficiency, high speed, heavy load direction. The new machine constantly put forward new requirements for lubricants, forcing the continuous upgrading of oil. In the viscosity grade, the general trend is low viscosity, multi-grade oil. Multi-level gasoline engine oil market share in Japan is almost 100%, the United States is 85%. In addition, due to the development of internal combustion engines, the requirement of low viscosity, low volatility and large span for oils has been brought forward, which brings about very high viscosity index base oils such as esters, polyalphaolefins, hydrocracking oils and isomerized alkanes The rapid development of high performance lubricants has entered a new era.