电磁加热梁在带钢板形优化中的设计与应用

 在带钢轧制过程中，针对工作辊轴向方向凸度分布不均匀造成轧后带钢内部应力分布不合理，导致带钢局部出现黏结被撕断的问题，根据涡流加热原理，设计了电磁加热梁装置，动态地改变工作辊局部圆周凸度，降低轧后带钢内部的残余应力。该装置与板形控制系统有效结合，使板形测量值更加接近于设定值。经过现场测试和工业验证，该装置有效降低了带钢内部应力分布不合理状况，达到提高板形控制精度、改善带钢板形质量的目的，满足了轧机的精细板形控制要求。

Design and application of electromagnetic heating beam in shape optimization of strip

In the process of strip rolling，aimed at the uneven distribution of the convexity in the axial direction of the work roll，the internal stress distribution is not reasonable in the strip after rolling，which leads to the partial tear of the strip steel. According to the eddy current principle，the electromagnetic heating beam device is designed to adjust dynamically the local perimeter convexity of work roll and reduce the residual stress inside the strip after rolling. The device is effectively integrated with the flatness control system to make the flatness measurement closer to the set value. Through the industrial test and verification，the device can effectively reduce the unreasonable stress distribution inside the strip. The purpose of improving control accuracy and shape quality is achieved to meet the precise shape control requirements of rolling mill.