摘要
用SRV多功能试验机研究了试验温度对几种固体润滑剂减摩性能的影响,并考察了固体润滑剂复合体系在不同试验温度时的减摩性能.结果表明,在低温润滑条件下(温度不大于200℃),固体润滑剂不能有效地改善基础油的减摩性能.固体润滑剂MoS2在200～400℃具有极其优异的减摩性能,其摩擦因数仅为0.05,但在500℃时摩擦因数非常高.滑石粉和氧化铁具有良好的高温减摩性能,如滑石粉在500℃下的摩擦因数为0.16,而且摩擦因数在试验范围内变化平稳.滑石粉与石墨复合润滑体系的减摩性在高温时存在一定的协同作用,可用于500℃以上的高温润滑.
The effect of solid lube additives on the friction coefficient of the colza oil at different test temperatures was investigated by using SRV multifunctional testing system. The results showed that the friction coefficients of the colza oil containing solid lube additives were similar to that of the colza base oil when the temperature was below 200℃. MoS2 demonstrated excellent capability of friction reduction between 200℃-400℃ with friction coefficient as low as 0.05, but it was ineffective when the temperature was over 500℃, Talc and brown iron oxide exhibited good friction reducing properties at high temperature, e.g. the friction coefficient of the colza oil containing 10% talc was 0.16 at 500℃, and the friction coefficient curves were smooth in the testing temperature range, Friction reducing properties of solid lubricants complex were studied and results indicated that composite interaction existed in the complex system of talc and graphite, the high temperature friction reducing properties improved and the complex system could be used for lubricating at 500℃ or higher temperature.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2005年第7期20-24,共5页
Petroleum Processing and Petrochemicals
基金
国家自然科学基金重点项目(520235030)
