超高碱值纳米磺酸钙添加剂对船用润滑油摩擦学性能的影响

o study the effects of superoverbased nanoscale calcium sulfonate additiveon the tribology performance, a SRV multifunctional testing machine, and a four-ball friction testing machine were appliedin physical experiments for measurement and analysis. The results show that under the loading of 200 N, 500 N, and 800 N, the marine lubricating oil with super-overbased nanoscale calcium sulfonate additive can effectively reduce the friction coefficient between the friction pairs, and the maximum non-seizure load PB, can be significantly improved. Meanwhile, when the mass fraction of the additive reaches 6%, the lubricating oil demonstrates the highest tribological property.