| 摘要 |
PURPOSE:To obtain a superior winding coil by changing the holding method of back tension during the period the tail end of a strip goes through a finishing rolling mill and after the tail end has been gone through the mill at the time of winding of the strip. CONSTITUTION:A rolling mill 1 and a pre-stage pinch roll 7 keep back tension until the tail end of the strip 2 goes through the final stand of the finishing rolling mill 1 from the coiling of strip 2. After the tail end of the strip 2 has gone through the final stand, the pinch rolls 6, 7 keep the back tension. The back tension due to the rolling mill 1 is set up to a low value within a range preventing the sag of the strip 2 on a hot run table 3 because the influence exerted upon the rolling of the rolling mill 1. The winding method can improve the accuracy of the size of the strip 2. |
