我厂连轧机上的厚度控制环节是由计算机数字控制及模拟放大器共同组成的。本文综述了轧机上采用的各种厚度控制环节,重点讨论了G_4/G_5机架间张力的3种控制方式及它们与3种轧制方式之间的关系。对3种轧制方式作了简明比较并讨论其适用范围,可作为轧钢工正确选译轧制方式的参考。 The thickness control of the mill on our mill is composed of computer numerical control and analog amplifier. In this paper, the various control sections of the thickness adopted in the rolling mill are reviewed. The three control methods of the tension between the G_4 / G_5 frames and the relations between them and the three kinds of rolling modes are mainly discussed. The three kinds of rolling methods were briefly compared and discussed the scope of its application, can be used as a correct choice rolling mill rolling reference.