轧制H型钢时，***轧机作为***机架使用，带有两个水平辊和两个立辊，对轧件的腹板和翼缘四面碾压。轧制普通型钢时，***轧机转换成两辊机架，即不带立辊，只带有两个水平辊，对轧件进行轧制.

When rolling H steel, the universal mill is used as a universal frame, with two horizontal rolls and two vertical rolls, which are rolled over the web and flange of the rolled piece. When rolling ordinary steel, the universal rolling mill is converted into a two roll frame, that is, without a vertical roll, with only two horizontal rolls, rolling the rolled piece.

四棍轧机的工作辊直径较小，传递轧制力矩，轧延压力由直径较大的支承辊承受。这类设备的主要优点是相对刚度较大，压下量大、轧延力小，可轧制较薄的板材，也包括有可逆和连轧两种。

The working roll diameter of the four bar mill is ***all, and the rolling torque is transferred. The rolling pressure is borne by the backup roller with larger diameter. The main advantages of this type of equipment are relatively large stiffness, large reduction, low rolling force, thin rolled sheets, and reversible and continuous rolling two.

轧机***厂家介绍，在热轧机运行的过程中，关于其的温度控制系统主要包括两个部分，分别为可逆轧机温度控制系统以及连轧机温度控制系统。

In the process of rolling mill, the temperature system of the hot rolling mill mainly includes two parts, which are the temperature system of the reversible rolling mill and the temperature system of the continuous rolling mill.