Research on Influence of Abrasive Particles on Lubricating Performance of the Emulsion for Cold Rolling Strip

The tribological performance of different emulsions was tested by MRS-10A four-ball friction and wear testing machine. The JC2000C1 contact angle measurement instrument was used to measure the wetting angle of emulsions. The LEXT OLS4000 laser scanning confocal microscope was applied in analyzing worn spot size of different emulsions. Lubricating properties of the various emulsions were examined on a 4-high cold-rolling mill. The results show that 39.4% significantly reduced the wetting angle of emulsion BG-1 than emulsion BG-2. Friction and wear experiments have demonstrated that the BG-1 emulsion omega were 9.194. The abrasive particles in emulsions have special antiwear and antifriction effects during cold rolling strip steels. The process lubrication experiments results show that abrasive particles affected the stability of emulsion lubricating performance, causing rolling friction coefficient fluctuation. Finally, it changes the rolling technological parameters and cold rolled steel strip surface quality.