WANG Zheng, LI Zhong ya, WAN Jia ao, YI Fang, XV Xue feng

（Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,

Ministry of Education & Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China）

Abstract: Aiming at the problem that in electrostatic spraying minimum quantity lubrication system, the high voltage electrostatic field generated from the corona electrode affects the lubricant mist charging performance, and the electric field intensity and distribution was determined by corona electrode configuration, the influence of corona electrode number and arrangement to the spatial electric field strength was investigated. Using Ansoft Maxwell to simulate the spatial electric field strength of corona electrode in different configuration，a system of lubricant mist charging performance of the electrostatic spraying minimum quantity lubrication was established to conduct the tests, from which the effect of different electrode configuration on charge mass ratio. The results indicate that compared with the multi electrode, single electrode has a simple structure, high electric field strength and the high electric field strength concentrate in the lubricant mist tapered region. The simulated results of spatial electric field is well accord with the experiment ones, the charging performance of the lubricant mist with single electrode is better than multi electrode, which is suitable for a corona electrostatic spraying Minimum quantity lubrication system.

Key words: electrostatic spraying minimum quantity lubrication；corona electrode configuration；electric field simulation；droplets charge mass rate