| 摘要 |
<p>PURPOSE:To prevent defects in shape and break of strip that are generated in the case continuous rolling is executed by connecting metallic strips with different thickness, width, material, etc. CONSTITUTION:In the case the roll crown of rolling roll when rolling a preceding strip is larger than the roll crown of rolling roll when rolling the following strip, when defining a time required for changing its roll crown as (t), the change of roll crown is started between t/2 before a joining part is passed through a rolling mill on the basis of that joining part of strips and t/2 after that joining part is passed through the rolling mill and, in the case the roll crown of rolling roll when rolling the preceding strip is smaller than the roll crown of rolling roll when rolling the following strip, the change of roll crown is started between 3t/2 and t/2 before that joining part is passed through the rolling mill.</p> |
