弄清軋輥的使用條件以及在同類型軋機(jī)中所用軋輥的失效方式，了解當(dāng)前各種軋輥材質(zhì)的性能和制造工藝，才能較正確地制定該軋機(jī)用輥的技術(shù)條件和選用合適而經(jīng)濟(jì)的軋輥材質(zhì)。

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.

軋輥在制作和運(yùn)用前的預(yù)備工序中會(huì)發(fā)生剩余應(yīng)力和熱應(yīng)力。運(yùn)用時(shí)又進(jìn)一步遭到了各種周期應(yīng)力的效果,包含有曲折、改變、剪力、接觸應(yīng)力和熱應(yīng)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.

線材軋機(jī)擁有粗軋機(jī)架和與小型型材軋機(jī)類似的中間機(jī)架。與兩線軋制的小型型材軋機(jī)相比，這些軋機(jī)一般被設(shè)計(jì)成可以進(jìn)行高達(dá)4線的同時(shí)軋制的切分軋制。然而，目前的發(fā)展趨勢是采用單線的高速軋制。

The wire mill has a roughing mill stand and an intermediate rack similar to a small section mill. Compared with the two section rolling mill, these mills are generally designed for rolling up to 4 lines at the same time. However, the current development trend is single line high-speed rolling.