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而精轧辊速度较高，轧制终产品要有一定的表面质量，对它以硬度、耐磨等为主要要求。然后考虑轧辊使用时所应有的耐磨性。由于轧辊的磨损机理很复杂，包括机械应力作用、轧制时的热作用、冷却作用、润滑介质的化学作用以及其他作用。

And the high speed of the fine roller, the final product of rolling must h***e a certain surface quality, which is the main requirement for its hardness, wear resistance and so on. Then the wear resistance should be cidered when the roll is used. Because the wear mechani*** of roller is very complicated, including mechanical stress, thermal action during rolling, cooling effect, chemical action of lubricating medium and other functi.

轧辊在制作和运用前的预备工序中会发生剩余应力和热应力。运用时又进一步遭到了各种周期应力的效果,包含有曲折、改变、剪力、接触应力和热应力等。

Residual stresses and thermal stresses will occur in the preparatory process before making and applying rolls. When applied, it is further affected by various cyclic stresses, including twists, changes, shear forces, contact stresses and thermal stresses.

轧辊按材质主要分为哪几种类别？

轧辊按制造材料主要划分为铸钢系列轧辊、铸铁系列轧辊和锻造系列轧辊三大类别。

What are the main categories of the roll according to the material?

Rolls are mainly divided into three categories: cast steel series rolls, cast iron series rollers and forging series rolls.