轧辊是轧机的重要部件，按照轧机类型可分为领带轧机轧辊、型钢轮机扎辊和钢管轧机轧辊三大类。
板带轧机轧辊的辊身呈圆柱形，热乾板带轧辊的辊身微凹，当受热膨胀时，可保持较好的扳形。
Roll is an important part of the rolling mill. According to the type of rolling mill, it can be divided into three types: the tie mill roll, the type steel turbine ligation roll and the steel tube rolling mill roll.
The roll body of a strip rolling mill is cylindrical, and the roll body of the hot dry plate is slightly conc***e. When the heat is expanded, it can maintain a better shape.
由于轧制过程是连续的过程，因此操作人员需要不断检测轧辊状况，使生产出来的产品满足用户对更严格的公差和表面质量的要求。
As the rolling process is a continuous process, the operator needs to continuously detect the roll status to meet the more stringent tolerance and surface quality requirements of the products produced.
（1）堆焊前需先将轧辊辊身表面的疲劳层或缺陷，尤其是裂纹必须彻底清除；
（2）在堆焊时，为了防止裂纹的产生，必须先加工轧辊辊身预热，预热温度根据轧辊辊及堆焊材料而定。
(1) before welding, the fatigue layer or defect of the roller body surface must be first removed, especially the crack must be thoroughly removed.
(2) in the process of surfacing, in order to prevent cracks, the roller body must be pre heated, and the preheating temperature should be determined according to roll rolls and surfacing materials.
被轧制的钢种
被轧制的钢种是选择轧辊的关键因素，其抗变形能力随坯料化学成分不同而改变，主要表现在轧制的各阶段变形的负荷大小和变化。必须根据确定的强度和硬度选择轧辊。
Rolled steel
The rolled steel is the key factor to select the roll. Its deformation resistance varies with the chemical of the billet. It is mainly manifested in the load and change of deformation in each rolling stage. The roll must be selected according to the determined strength and hardness.