新建冷弯型钢机组,确定平辊机架的速比及间距对冷弯成型工艺十分重要。本文旨在探讨变形角度、产品尺寸、轧辊直径、平辊上下相中心线间的距离、速比、两平辊机架间的距离等参数之间的关系,建立确定平辊机架速比i和间距L的公式。此公式适用于新建机组和已建冷弯成型机组的产品孔型设计。 New cold-formed steel unit, to determine the speed ratio and spacing of flat-rolled frame cold forming process is very important. The purpose of this paper is to discuss the relationship between deformation angle, product size, roll diameter, the distance between the centerline of the upper and lower rolls, the speed ratio and the distance between the two flat rolls. And the spacing L formula. This formula applies to the new unit and has been built cold forming unit product hole design.