| 摘要 |
PROBLEM TO BE SOLVED: To improve the precision of flange thickness and web height by performing finish rolling after adjusting roll width and position in the roll axial direction and the positions of vertical rolls according to flange thicknesses and web heights in four places of both upper and lower sides, and the left and the right of a rolled stock to be rolled after rough rolling. SOLUTION: According to the actual result of the dimensional measurements of a rolled stock after rough rolling, in an arithmetic unit 6, the set quantity of a roll opening degree and a adjusting quantity in a universal rolling mill 4, are operated. 'The roll opening degree of a rolling mill 4, putting it concretely. the roll width and a position in the roll axial direction of a horizontal roll pair and the position of vertical rolls, are set and adjusted by a drawing down setting device 7 after receiving the result of an operation. After completing the setting and the adjustment of a roll gap the milled stock is rolled by a finish universal mill 4, and the product dimensions of the rolled stock are obtained. |
