Abstract: The composition and content of emulsifier and antirusting agent were investigated in grinding fluid by investigating the influence of kind and amount of surfactants and antirusting agent on the performance of microemulsion grinding fluid. Microemulsion grinding fluid was prepared and measured. The results showed that the oil removal rate is 95% with emulsifier formed from a mixture of four non-ionic surfactant of 6%. And the optimal composition of antirusting agent is as follows：monoethanolamine 8%，triethanolamine 8%，benzotriazole 0.3%. The antirust performance of microemulsion grinding fluid has reached the Chinese National Standard-the Synthesized Cutting Fluid (GB6144—85).

Key words: microemulsion；grinding fluid；emulsifier, antirusting agent；antirust performance

摘要： 研究磨削液中主要成分乳化剂的组成及用量，考察防锈剂种类及其用量对磨削液防锈性能的影响，确定乳化剂和防锈剂的配方组成，制备一种新型微乳磨削液，并检测其性能。实验结果显示，非离子表面活性剂复配乳化剂用量为6%，除油率可达95%；防锈剂单乙醇胺用量为8%、三乙醇胺用量为8%、苯并三氮唑用量为0.3%时，防锈性能达到GB6144—85标准。

关键词: 微乳, 磨削液, 乳化剂, 防锈剂, 防锈性能