Q235B系列钢的浪形控制与探讨  

Wave shape control and discussion of Q235B series steel

作　　者：邓长和[1] 周一中[1] 张鹏武[1] 陈翔[1] 李思维[1] 

机构地区：[1]武钢热轧总厂,湖北武汉430083

出　　处：《武钢技术》2013年第1期26-29,共4页Wisco Technology

摘　　要：武钢二热轧2 250mm产线PCFC板形控制系统是2001年从SMS引进的,采用CVC辊形,利用弯辊和窜辊来控制板形。介绍了板形的控制思想和良好板形条件,针对Q235B系列钢轧制后板形不良现象,分析引起的原因,提出微边浪轧制思想。通过修改平直度控制目标、优化平直度闭环控制、改善轧辊冷却和调整层冷上下喷嘴的流量等措施,可大大改善Q235B系列钢轧制后的板形问题。The PCFC control system of 2 250 mm product line in No.2 Hot Rolling Mill of WISCO is introduced from SMS in 2001.CVC roll shape is used in the system,the plate shape is controlled by roll bending and shifting.The present paper introduces the concept of plate shape control and conditions for good plate shape.In light of the problem of undesirable plate shape of the Q235B series after rolling,the origin of defects is analyzed and the edge wave rolling concept is accordingly put forward.By taking such a few measures as modifying the flatness control target,optimizing the close-loop control of flatness,improving cooling of roll and adjusting the flow rate of the up and down nozzles of the laminar cooling,the plate shape of Q235B series after rolling can be improved very greatly.

关 键 词：凸度 平直度 轧辊热凸度 轧后冷却 

分 类 号：TG335.11[金属学及工艺—金属压力加工]