我厂现有四辊可逆式冷轧机(工作辊径φ170～190mm,支承辊径φ50mm),辊身长由380mm 改为650mm 后,冷轧宽带钢时轧辊挠度增加,致使所轧的带钢横断面尺寸明显的不均。当把工作辊改为中凸的梯形辊型后,使所轧带钢横断面厚度的均匀性得到了改善。1.φ180/450×650mm 四辊冷轧机用平辊冷 Our existing four-roll reversing cold rolling mill (working roll diameter φ170 ~ 190mm, back-up roll diameter φ50mm), the roll body length from 380mm to 650mm, widening cold-rolled widening steel roll deflection increases, resulting in the strip rolling transverse Surface size significantly uneven. When the work roll into a convex trapezoidal roll, so that the uniformity of the thickness of the strip cross section has been improved. 1.φ180 / 450 × 650mm cold rolling mill with four-roll cold