| 摘要 |
PURPOSE:To adjust the width of a material to be rolled considerably by erasing the dogbone of the material produced by plural passes of rolling with a vertical rolling mill by means of a horizontal rolling mill in succession to said mill then rolling the material down to a final product thickness by an ordinary method. CONSTITUTION:A material to be rolled is first subjected to <=5 times plural passes with a vertical rolling mill 1, whereby the material is rolled only in the width direction to have a specified width. The dogbone produced by broadside rolling with the mill 1 is erased by a horizontal rolling mill 2. In succession, the material erased of the dogbone is rolled to a prescribed size with succeeding rolling mills 3, 4, 5 and a finishing mill group 6, and the product is coiled with a coiler 7 to complete the rolling. |
