| 摘要 |
PURPOSE:To improve the shape and quality of a strip at high rolling reduction by making at least one side of outside work rolls small diameter, and at the same time, by adding reinforcement of multi-stage cluster type to the work rolls. CONSTITUTION:Work rolls 1, 4 are reinforced by making outside work rolls 1, 4 small diameter work rolls, and arranging intermediate rolls 5, center back up bearings 6 and side back-up bearings 7 in cluster type. By this mechanism, rolling can be made at high rolling force in the state that the strip 8 is wound on the large diameter work rolls 2, 3 half round each. Further, the shape control of the strip 8 becomes easy by adjusting eccentricity of the back-up bearing 7 etc. Accordingly, a strip 8 improved in the shape and quality is obtained at relatively high rolling reduction by this method. |
