| 摘要 |
<p>PURPOSE:To improve actual working rate and consumption unit of roll. CONSTITUTION:A 1st sizing mill SM1 and 2nd sizing mill SM2 are arranged in series along the pass line of a material to be rolled. Each sizing mill SM1, SM2 can select two kinds of reduction rate of area and also composed so as to be capable of retreating from the pass line. And, in a pattern by which the material to be rolled which is rolled into required cross-sectional dimensions by passing through an intermediate train is passed through only the 1st sizing mill SM1 or the 2nd sizing mill SM2 and pattern by which the material is passed through both the sizing mills SM1, SM2, plural serialized products are manufactured in the range of the required cross-sectional dimensions by respectively changing the reduction rate of area.</p> |
