| 摘要 |
<p>PURPOSE:To execute a reasonable plate width control by determining upper and lower limit schedule cones from a width rolling reduction allowable limit of each pass, and determining a width rolling reduction of each pass between them, in case of a hot rough rolling by plural width and horizontal rolling reduction rolling mills. CONSTITUTION:In case of a hot rough rolling by plural width rolling reduction and horizontal rolling reduction rolling mills, the upper limit and the lower limit pass schedule cones (a), (b) of the whole width rolling reduction pass are set by the width rolling reduction allowable upper limit and lower limit quantities in each width rolling down rolling. By adjusting the width rolling reduction between these width rolling reduction cones (a), (b), the width rolling reduction is executed satisfactorily without executing an immoderate width rolling reduction in the vicinity of the final width rolling reduction pass.</p> |
