中文摘要：

基于连铸坯凝固热收缩仿真计算结果,并结合以铸坯为厚度标尺检测得到的拉矫机架辊缝偏差,研究开发了一种大方坯连铸拉矫机辊缝在线标定方法,为铸坯轻压下实施准确的压下量提供保障。实践证明,采用此在线辊缝标定方法后,轻压下压下量相对偏差可控制在4%以内,无偏差铸坯比率达到83.33%。

英文摘要：

Based on the calculation results of bloom thermal shrinkage,and combed with the roll gap deviation of withdraw machines measured by bloom thickness scale,the one gap on-line calibration method for withdrawal machines of bloom continuous caster was studied and developed,guaranteeing the accuracy of soft redcution amount of strand.The application of this method shows that the relative implementing deviation of soft reduction amount was controled no more than 4%,and the zero devation rate of bloom thickness reached 83.33%.