| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plate thickness control method for controlling a plate thickness while certainly preventing a plate thickness of an end part on a thin side from becoming less than a target value, in a rolled material having a wedge. <P>SOLUTION: This plate thickness control method is a plate thickness control method to the rolled material 5 during rolling by the rolling machine 4 including work rolls 2, 2. A plate thickness h<SB POS="POST">G</SB>of the plate end that is a plate thickness of a width direction end part of the rolled material 5 is obtained by use of a rolling load difference ΔP that is a difference between rolling loads in both the ends in the width direction of the work rolls 2, 2 and a wedge amount ΔH<SB POS="POST">W</SB>that is a plate thickness difference of both the ends in the width direction of the rolled material 5. Next, a roll gap s between the work rolls 2, 2 is obtained based on the obtained plate thickness h<SB POS="POST">G</SB>of the plate end and a gauge meter equation. The obtained roll gap s is applied to the rolling machine 4, and the plate control of the rolled material 5 is performed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
