连轧张力公式证明:影响张力变化的主要因素是厚度变化,厚度对张力的影响比速度影响大千百倍,从而提出在热连轧机上同冷轧机一样用流量AGC使张力和厚度恒定。该方法在攀钢热连轧机上实验成功,已在生产中应用。实用效果表明厚度精度提高一倍以上,同时宽度波动可大为减小。 The formula of tension in continuous rolling proves that the main factor that affects the tension variation is the change of thickness. The effect of thickness on tension is more than a thousand times greater than the speed, so the same tension and thickness of AGC as the cold rolling mill are proposed. The method was successfully tested on Panzhihua Iron and Steel’s hot rolling mill and has been applied in production. Practical results show that the thickness accuracy is more than doubled, while the width fluctuations can be greatly reduced.