| 摘要 |
<p>PROBLEM TO BE SOLVED: To make threading stability and securement of strip crown compatible, in strip crown control using an S-shaped roll.SOLUTION: A strip crown control method of the present invention comprises: changing a proper shift amount in a rolled steel WB and/or a succeeding rolled steel WA within an allowable range when a shift travel distance between the rolled steel WB and the succeeding rolled steel WA exceeds an upper limit value, thereby setting the shift travel distance in the rolled steel WB and the succeeding rolled steel WA so as to become the upper limit value or less; and when the shift travel distance does not become the upper limit value or less even if the above-mentioned processing is performed, setting a proper shift amount in the rolled steel WB and the succeeding rolled steel WA so that the shift travel distance falls within a range of the upper limit value and a lower limit value of a reset proper shift amount and the shift travel distance in the rolled steel WB and the succeeding rolled steel WA becomes the upper limit value or less.</p> |
