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用户对热轧带钢质量的要求越来越严格。由于采用了液压ＡＧＣ，带钢除头、尾之外的中间部分已经有足够的精度。但是，头部精度仍然不够理想。有些头部偏差超过１００ｕｍ。虽然近年对精轧机组的设定模型进行了改进，开发了绝对值ＡＧＣ控制方式［１］，但是由于粗轧出口测定的
Users of hot-rolled strip quality requirements more stringent. Thanks to the hydraulic AGC, the strip has sufficient accuracy in the middle except for the head and tail. However, the accuracy of the head is still not ideal. Some head deviations of more than 100um. Although the setting model of the finishing mill has been improved in recent years, the absolute AGC control mode has been developed [1]. However, since the roughing exit