水溶液中常见阴离子对水基切削液性能的影响  

Effect of Common Anions in Aqueous Solution on the Performance of Water-based Cutting Fluid

作　　者：陈志忠[1] 曹正强 李铭[1] CHEN Zhi-zhong;CAO Zheng-qiang;LI Ming(PetroChina Lanzhou Lubricating Oil R&D Institute,Lanzhou 730060,China)

机构地区：[1]中国石油兰州润滑油研究开发中心,甘肃兰州730060

出　　处：《润滑油》2020年第2期38-42,共5页Lubricating Oil

摘　　要：通过铸铁屑防锈试验和稳定性试验,研究了水溶液中常见的阴离子Cl-和SO42-对水基切削液防锈性和稳定性的影响。结果表明:随着水中Cl-和SO42-含量的增加,稀释液的防锈性显著变差,且同等摩尔量的SO42-对锈蚀产生的影响比Cl-更大,对此现象进行了原理探讨。此外,Cl-和SO42-对水基切削液的稳定性也有很大的影响,在硬度相同的情况下,水溶液中Cl-和SO42-含量越高,电导率越大,稀释液的稳定性越差。The effect of common anions such as Cl-and SO42- on the rust resistance and stability of water-based cutting fluid was researched by the anti-rust test of cast iron chips and the stability test. The results show that,with the increase of Cl-and SO42- content,the rust resistance of the dilution becomes worse,and the effect of SO42- with the same molar content on the corrosion is greater than that of Cl-,and the principle of this phenomenon is discussed. In addition,Cl-and SO42- also have a great influence on the stability of water-based cutting fluid. Under the same hardness,the higher the content of Cl-and SO42- in the aqueous solution,the higher the conductivity and the worse the stability of the dilution.

关 键 词：切削液 阴离子 防锈性 稳定性 

分 类 号：TG501.5[金属学及工艺—金属切削加工及机床]