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硬质合金轧辊是在硬质合金刀具的基础上发展而来的，硬质合金是采用坚硬的碳化钨颗粒硬质相与镍、钴等黏结相金属烧结而成。硬质合金的性能取决于碳化钨颗粒尺寸的大小和黏结相金属含量的多少，当黏结相金属中含有一定量的镍和铬时，不仅会大大提高轧辊的抗热疲劳性能。整体轧辊是相对于复合轧辊而言的，整体轧辊的辊身外层与心部以及辊颈采用单一材质铸造或锻造而成，辊身外层和辊颈不同的***、性能通过铸造或锻造工艺以及热处理工艺过程来控制和调整。

Cemented carbide rolls are developed on the basis of cemented carbide tools. Cemented carbide is made of hard tungsten carbide particles and hard phase sintered together with nickel and cobalt bonded phases. The properties of cemented carbide depend on the size of tungsten carbide particle and the content of bonding phase metal. When the amount of nickel and chromium in the bonding phase contains metal, it will not only greatly improve the thermal fatigue resistance of the roller.

弄清轧辊的使用条件以及在同类型轧机中所用轧辊的失效方式，了解当前各种轧辊材质的性能和制造工艺，才能较正确地制定该轧机用辊的技术条件和选用合适而经济的轧辊材质。

We must know clearly the condition of the roller and the failure way of the roll used in the same type of rolling mill, and understand the performance and manufacturing technology of all kinds of roller material at present, so that we can correctly formulate the technical conditi of the roller and choose the right and economical roller material.

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.

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.