“…Therefore, the oil-based cold rolling lubricant of copper strip is gradually developing in the direction of water-based lubricant (Sherif and Park, 2006;Quraishi, 2013). Recently, the micro-emulsification technology is gradually used in cutting fluid (Duzheng, 2011;Chenjie, 2008), and the lubrication effect is very good, it also involved in other metal processing fields (Ma et al, 2010;Lu et al, 2016;Sun et al, 2017). Therefore, microemulsion lubrication can be attempted in the process of cold rolling of copper strip.…”