这里对热轧带钢厚度精度存在的问题进行了分析和研究。主要是热轧带钢纵向差和横向差产生的原因,并针对这些原因提出了6项改进措施。即上保温罩、更换飞剪、引进新卷板机、改为步进式加热炉、上快速换辊小车、精轧机改为CVC轧机等。 Here the hot strip thickness accuracy problems are analyzed and studied. The main reason is the difference of longitudinal difference and lateral difference of hot strip, and six improvement measures are put forward for these reasons. That the insulation cover, the replacement of flying shear, the introduction of new Bending Machine, to step furnace, on the rapid roll change car, finishing mill to CVC rolling mill and so on.