对原有三辊联合穿轧机结构上存在的问题进行了改进设计，并取得良好效果。
The original structure of three-rolls piercing-elongating mill is improved. And good results have been achieved.
带钢热连轧精轧机组穿带后的头部厚度精度- - -头部命中率将直接影响绝对AGC的工作，其重要手段是靠提高设定模型精度、模型自学习的收敛速度。
It is necessary to hit accurately the head of the strip for applying absolute AGC in hot rolling mill, important means are to improve accuracy of set-up model and convergence of self-learning model.
通过对某轧钢厂冷连轧机的穿带工艺及轧制参数的研究，找出了影响顺利穿带的主要因素，提出了应对措施。
Based on research of the threading process for a continuous cold rolling mill, some factors that influence the threading process were found and corresponding measures were put forward.
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