某1 720mm平整机组在生产中普遍存在板形缺陷,尤其是电工钢的生产,板形封锁率达到5%以上。为提高该机组的板形控制质量,针对机组的工艺特点,以前张力和辊间接触压力分布均匀为目标优化设计出工作辊和支撑辊新辊形。现场应用表明,优化后新辊形使工作辊和支撑辊间接触压力更加均匀,弯辊控制效果得到增强,板形质量显著提高,取得了良好的经济效益。 A 1 720mm flat unit widespread in the production of plate defects, especially the production of electrical steel, plate-shaped block rate of 5% or more. In order to improve the shape control quality of this unit, a new roll shape of work roll and backup roll was optimized based on the technical characteristics of the unit, the uniform distribution of contact pressure between the former tension and the roll. The field application shows that the optimized new roll shape makes the contact pressure between the work roll and the backup roll more uniform, the bending roll control effect is enhanced, the strip shape quality is significantly improved, and good economic benefits are achieved.