含钼抗磨添加剂性能研究.docVIP

含钼抗磨添加剂性能研究 　　摘要：以五硫化二磷、烷基醇和三氧化钼为原料在一定的条件下反应合成了一种极压抗磨添加剂（简称M）――二烷基二硫代磷酸钼，将其按不同比例加入到国产L-AN100全损耗系统用油、韩国双龙HVI150基础油、CC40柴油机油、国产GL-5重负荷车辆齿轮油中做性能对比试验。试验结果表明：加入该添加剂后，润滑油的承载能力和摩擦学性能得到了较大的改善，对金属无腐蚀性。尤其在国产GL-5重负荷车辆齿轮油中加入少量的M可显著改善其高载荷下的极压抗磨性，其性能可达到国外同类产品水平。 　　关键词：含钼化合物；极压抗磨添加剂；磨损 　　中图分类号：TE624.82 文献标识码：A 　　 　　The Properties Research of Molybdenum-Containing Compound as Antiwear Additive 　　CHEN Rong1,2，WANG Yan-shuang1，WANG Zi-jun2，CHEN Kai1,2 　　(1. School of Mechanical and Electrical Engineering of Henan Technology University, Luoyang 471003,China; 2. Luoyang Bearing Research Institute, Luoyang 471039, China) 　　Abstract:Molybdenum dialkyldithiophosphate, which is an extreme pressure antiwear additive (abbreviating to M in this paper), was synthesized by phosphorus pentasulfide, alkyl alcohol and molybdenum trioxide under certain conditions. By adding this compound as an accessory ingredient into several oil samples of base oil and commercial lubes at different ratio, including the domestic L-AN100 machine oil for total loss systems, Korea Ssang Yong HVI150 base oil, the CC40 diesel engine oil, and GL-5 heavy-load automotive gear oil, their lubricating performances were tested and compared. The experimental results showed that this additive can notably improve the lubes′ load capacities and tribological properties, and shows none-corrosiveness to metals. Especially for the domestic GL-5 heavy-load automotive gear oil, its extreme pressure anti-wear performance can be improved tremendously by adding the additive, achieving the similar import products′ level. 　　Key words:molybdenum-containing compound; extreme pressure antiwear additive; wear 　　 　　0 前言 　　 　　使用润滑油的目的是为了减少机械设备的摩擦，防止烧结，减少磨损，以提高设备的运转效率和降低动力消耗。在边界润滑条件下，若金属表面承受负荷较高，摩擦产生大量热造成金属表面磨损、擦伤，甚???烧结。极压抗磨剂可以改善边界润滑，其主要作用是在摩擦表面生成沉积膜、反映层或渗透层，从而形成极压固体润滑膜，以减缓摩擦表面的摩擦和磨损。油溶性钼化合物在使用过程中可催化分解成新鲜的、超微细的二硫化钼，从而可改进添加油溶性钼化合物润滑油的摩擦性能。本文简要介绍一种含钼化合物添加剂（后文简称为M）的制备及性能研究情况。将M添加到基础油和几种成品油中，通过大量的对比试验，发现加入M后，随添加剂量的不同，油品的极压抗磨性能有较大的提高。