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.

轧机在轧制过程中由轧制力所引起的内力沿机座各承载零件分布的应力曲线，称作应力线。为了提高轧机刚度，减少机架及各承载零件的变形，采取各种技术措施后，将这种应力线缩短了的轧机，称为短应力线轧机。它是高刚度轧机中的一种。

The stress curve of the rolling force, which is caused by the internal force of the rolling force, along the bearing parts of the frame, is called the stress line. In order to improve the rigidity of rolling mill and reduce the deformation of rack and bearing parts, after taking various technical measures, the mill which shortens the stress line is called short stress line mill. It is one of the high rigidity rolling mills.

轧机***厂家说，热轧机的优点主要可以归纳为三个方面。一点，采用热轧可以明显的减少能耗，降低成本。此外，热轧时可以发挥出较高的金属塑性，而且所产生的变形抗力较小，能够有效的防止金属出现严重的变形问题。

The mill manufacturer explains that the advantages of the hot rolling mill can be summed up in three aspects. First, the use of hot rolling can significantly reduce energy cumption and reduce costs. In addition, hot rolling can give full play to the high metal plasticity, and the deformation resistance is ***all, which can effectively prevent the serious deformation of the metal.