| 摘要 |
<p>PURPOSE:To obtain a rolled product with small fluctuation in width and without bend by executing edging rolling in the direction toward an edger mill from a horizontal rolling mill to the part except an unsteady part on the biting side. CONSTITUTION:In the case the edger mill 2 is arranged at the front of a reversing horizontal rolling mill 3, at a 1st pass, edging rolling may be executed from the tip of a metal plate 5 or to the part except the tip part when such a light draft that width drop on the biting side is not increased is applied. At a 2nd pass, for evading damage to the edger mill 2 due to the bend of the tip of the metal plate 5, the roll gap of the edger mill 2 is set on the wide side until the unsteady part 6 of the tip of the metal plate 5 is passed through the edger mill 2 and, after the unsteady part 6 of the tip of the metal plate 5 is passed through, edging rolling is executed. At a 3rd pass, because edging rolling is executed at the 2nd pass, edging to the biting side is hardly required and oblique biting in the rolling mill isn't generated.</p> |
