| 摘要 |
<p>The present invention has an aim of providing a rolling mill and an operation method thereof for remarkably extending a roll life, optimizing a driving source and attaining maintenance free in the rolling mill, in which an optimum ratio for the number of driving rotations between each of driving roll stands can be obtained by arranging rolls of predetermined shapes in a plurality of roll stands and adjusting the rolling reduction so as to obtain a required shape, then gripping a material to be formed completed with formation by a clamping device, drawing the same for a required length without driving all the rolls and determining the number of rotation or the like of each of roll stands, and driving force between each of driving roll stands can be matched and optimized by driving each of the driving roll stands at the optimum ratio for the number of driving rotation, which can remarkably extend the roll life, optimize the driving source and attain the maintenance free in the rolling mill.</p> |
