The surface quality of the IF steel strips rolled without lubrication and with two different emulsions lubrication was analyzed
and the reasons for the difference of surface quality lubricated by different emulsions were studied by analyzing the tribological properties of emulsions. The results showed that the lubrication of emulsions in cold rolling process could make the steel strip surface more smooth and improve the surface quality. The reason for the better surface quality of the steel strip lubricated by LP-2 than lubricated by LP-1 is mainly that the LP-2 emulsion had higher oil film strength which could form more stable oil film in the lubrication process
and get better anti-friction and anti-wear effects.