| 摘要 |
<p>PURPOSE:To roll each of many kinds of rolled stocks different in plate dimension into excellent plate crowns and shapes without increasing the number of divided backup rolls excessively by moving and setting a group of divided backup rolls in the axial direction. CONSTITUTION:In an upper roll assembly, a mechanism for supporting a work roll 1 with backup rolls 20A, 20B, 30A, 30B divided into four parts in the axial direction is provided and in a lower roll assembly, a mechanism for supporting a work roll 1' with backup rolls 20'A, 20'B, 30'A, 30'B divided into four parts in the axial direction is provided and each divided backup roll has an independent load detecting device. When the backup roll is moved and set in the axial direction, the distribution of rolling reduction force in the direction of the plate width given to the rolled stock 13 can be changed and controlled. Consequently, the rolling reduction force in the plate with direction can be controlled finely without excessively increasing the number of divided backup rolls.</p> |
