本申请提供了一种X80管线钢板坯热轧控制方法，所述热轧工序包括加热步骤、轧制步骤和冷却步骤，所述轧制步骤结束后，进行冷却步骤时，X80管线钢板坯进行头部遮挡后通过ACC方式冷却，控制头部遮挡的范围为X80管线钢板坯的头部长度3-6m，遮挡水量占正常水量的1-95％，且最大遮挡水量到正常水量的过渡距离控制在3-10m。该方法成材率提高了2％～3％，钢板的性能同板差控制在30MPa以内，且钢板的不平度控制在3mm/m的优异水平，有效提高了钢板剪切的精度，钢板的剪切不良、尺寸不命中的问题得到明显的改进，钢板的剪切不良率控制在1‰以内。

This application provides a kind of X80 pipeline steel slab hot rolling control method, described in the hot rolling process including the steps, the step of rolling and cooling, heating rolling after the steps, described during cooling steps, X80 pipeline steel slab by ACC cooling after head block, control the scope of the head cover for X80 pipeline steel slab head 3-6 m in length, The shielding water volume accounts for 1-95% of the normal water volume, and the transition distance between the maximum shielding water volume and the normal water volume is controlled at 3-10m. The finished product rate of the steel plate is increased by 2% ~ 3%, the performance difference between the steel plate and the steel plate is controlled within 30MPa, and the unflatness of the steel plate is controlled at the excellent level of 3mm/m. The shear accuracy of the steel plate is effectively improved, the problems of bad shear and size mismatching of the steel plate are obviously improved, and the shear failure rate of the steel plate is controlled within 1‰.