| 摘要 |
PROBLEM TO BE SOLVED: To very simply set the draft of a rolling stand and the tuning rate by which the variation of sheet thickness can be suppressed, when rolling a rolled stock with a cold tandem mill.SOLUTION: In a method of rolling the rolled stock W with a cold tandem mill 2 including a plurality of the rolling stands 1, rolling is performed by specifying a vibration region where the variation of the sheet thickness of the rolled stock W is caused and a stable region where the plate thickness variation is suppressed, determining a forward slip in the stable region on the basis of rolling results, determining the boundary between the vibration region and the stable region by using the forward slip determined from the rolling results and rolling theory, and setting the draft and the tuning rate α by using the determined boundary. The tuning rate α to be applied to rolling is set so as to be higher than the tuning rate α shown on the boundary. |
