PV 轧制亦称为张力异步轧制,在 PV 轧制中增加延伸系数,降底轧制力和轧制功率消耗,是由 PV 轧制工艺本身达到的。普通轧制中,上下辊具有相等的圆周速度,带材厚度或变形抗力变化,轧制中性点的位置也随之移动。PV 轧制则不同,由于钢带“S”形缠绕在轧辊上,在非变形区的接触弧上,存在着静摩擦,当轧制条件发生变化时,只要改变静摩擦力的大小进行自动调整,使轧辊调定的速度比 V_1/V_2一定,板厚比 h_0/h_1也就一定,轧 PV rolling is also known as Tensile Asynchronous Rolling, which is achieved by the PV rolling process itself by adding an elongation coefficient, a reduction in rolling force and a rolling power consumption in PV rolling. In ordinary rolling, the upper and lower rollers have the same peripheral speed, strip thickness or deformation resistance changes, the location of the rolling center also will move. PV rolling is different, because the strip “S” shape wound on the roll, in the non-deformation zone contact arc, there is static friction, when the rolling conditions change, as long as the size of the static friction changes automatically adjusted so that Roll setting speed than V_1 / V_2 certain, thickness ratio h_0 / h_1 also certain, rolling