Design and application of electromagnetic heating beam in shape optimization of strip
TIAN Bao-liang;NIU Pei-feng;Key Laboratory of Industrial Computer Control Engineering,Yanshan University;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University;
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.