| 摘要 |
<p>PURPOSE:To improve the precision of sheet width control in a finish rolling mill. CONSTITUTION:A sheet thickness, a sheet crown, and a sheet width of a rolling material 1 are measured with a thickness meter 6, a crown meter 6, and a width meter 7 arranged between a rough rolling mill 3 and/or a finish rolling mill 5, set conditions (rolling-down, crown schedule, etc.) in the finish rolling mill are calculated based on these measured sheet thickness, measured sheet crown and a target sheet thickness, the target sheet crown, and setting or correcting of setting of controllers of finish each stands is executed. The sheet width changing amount generating at each stand is predicted and calculated based on these setting conditions, and the opening amount of edger is set or changed based on these calculated values, the sheet width measured value and the target sheet width of the outlet side of the finish rolling mill.</p> |
