Abstract：The strip profile of hot rolled silicon steel has an important effect on the transverse thickness difference of cold rolled strip. Reducing the edge drop of hot rolled silicon steel strip as much as possible is beneficial to the decrease of the transverse thickness difference of cold rolled strip. In order to improve the problems such as large edge drop and short rolling period of silicon steel strip, large concave roll contour is applied in the downstream stands F5- F7 of 1 580 mm line. The shape indicators of hot rolled strip, the transverse thickness difference of cold rolled strip and the wear contour of work rolls before and after the application of large concave roll are summarized, and the influence of the large concave roll on the edge drop of silicon steel and the wear contour of work roll is analyzed. It is concluded that the large concave roll contour can effectively extend the rolling mileage, reduce the strip edge drop at the end of rolling unit, and improve the transverse thickness difference of silicon steel strip.
闻成才，王立兵，刘强，李轶伦. 1 580 mm精轧机组大凹辊控制硅钢板形的研究及实践[J]. 中国冶金, 2019, 29(1): 56-61.
WEN Cheng- cai,WANG Li- bing，LIU Qiang，LI Yi- lun. Research and practice on controlling of shape of silicon steel plate by large concave roll in hot rolling 1 580 mm finishing mill[J]. China Metallurgy, 2019, 29(1): 56-61.
2019, Vol. 29 
