热轧板凸度控制实践分析

针对热轧板凸度控制问题,研究了轧制负荷、弯辊力、轧辊热膨胀、原始辊凸度、轧辊磨损、边缘降及楔形对板凸度的影响.结果表明,F3、F6机架负荷减小、F2、F4与F5机架负荷增大、弯凸度力增大、辊凸度减小、边缘降减小及楔形绝对值减小均可使带钢板凸度减小,轧辊热凸度约30min基本形成,轧辊不均匀磨损直接影响带钢板凸度.

Analysis about Crown Control of Hot Rolled Plate

To the problem of hot rolled plate crown control, the influence of rolling load, bending force, roll thermal expansion, roll crown, roll wear, strip edge drop and wedge on plate crown were researched. The re- sults show that the plate crown is deduced by the load of F3 ,F6 mill, the roll crown, the edge drop, the wedge absolute value decreasing and the load of F2 ,F4 ,F5 mill, the bending force increasing. The roll thermal crown was formed within 30min. The plate crown was affected by roll uneven wear.