轧钢，就是在旋转的的轧辊间改变钢锭，钢坯的形状的压力加工过程。所谓轧钢工艺过程就是一系列轧钢工艺过程组合而成的加工流程。
Rolling is the process of changing the pressure of the ingot and the shape of the billet between the rotating rolls. The so-called steel rolling process is a process of combination of a series of steel rolling process.
横轧有两种类型：一类是轧辊孔型沿轴向是不变的，沿径向呈周期变化。轧件主要靠径向变形实现成型。另一类是锲横轧工艺，即在两个或者三个互相平行布置的轧辊或两个平板的表面上.
There are two types of cross rolling: one is the roll pass is unchanged along the axis, and the other is radial variation. The workpiece is mainly formed by radial deformation. The other is the cross rolling process, that is, on the surface of two or three parallel rolls or two plates.
单就冷轧机的轧制速度而言，其型号就可分为两种，一种是每秒线速度在3米的冷轧机，还有一种则是线速度在20米冷轧机，后面这一种设备已经可以算得上是快的了。
As far as the rolling speed of the cold rolling mill is concerned, the model can be divided into two types, one is a cold rolling mill with a line speed of 3 meters per second, and one is the line speed in the 20 meter cold rolling mill, and the latter is the fastest.
我国经济一直快速稳定发展，而轧钢设备行业也是迅速发展，在我国轧钢机设备行业中，自动化和计算机控制系统主要还是靠引进。
China"s economy has been developing rapidly and steadily, and the steel rolling equipment industry is developing rapidly. In China"s steel rolling machine equipment industry, automation and computer systems are mainly