针对某1780mm热轧带钢生产线F_1～F_4精轧机存在工作辊辊面氧化膜异常脱落,工作辊防剥落水及轧制润滑效果不佳的问题,对F_1～F_4机架入出口导卫间介质系统进行了改造,通过调整F_1～F_4机架入出口除鳞集管布置、入出口工作辊冷却水量的重新分配,以及轧制润滑的改善,使轧辊建立了稳定的氧化膜,减少了辊耗,提高了产品表面质量。 Aiming at the problems of the abnormal rolling off of work roll surface oxide film, work roll anti-peeling water and rolling lubrication effect on the finishing mill of F_1 ~ F_4 in a 1780mm hot-rolled steel strip production line, The system has been reformed. By adjusting the arrangement of descaling headers at the entrances and exits of F_1 ~ F_4 racks, the redistribution of the cooling water in the entry and exit work rolls, and the improvement of rolling lubrication, a stable oxide film is formed on the rolls and the roll consumption is reduced , Improve the product surface quality.