It presented how the water cooling rollers kept tension and constant speed in RQ segment when they moved cross-ly,so as to make the steel band operate smoothly.

• 对辊冷段各辊的自动控制中最重要的张力补偿和速度补偿作了简要分析,阐明RQ段在水冷辊横移时是如何保持张力、速度恒定的,从而使带钢稳定运行。