| 摘要 |
<p>PURPOSE: To prevent defective shape from occurring before and after the changing point of manufacturing kind in a continuous rolling mill. CONSTITUTION: The shape controller 1 of the continuous rolling mill 10 is constituted including the final rolling stand 14 of plural rolling stands, a shape controlling means provided on the final stand, tension detector 30, shape detector 19, bridle rolls 20 for imparting tension to the material 3 to be rolled, rolling speedometer 31 and coiling reel 23 for coiling the material 3 to be rolled in this order from the upstream side in the rolling direction of a material 3 to be rolled. The shape controlling means is provided with work roll bender devices 18, 47, intermediate roll bender devices and driving devices for shifting the intermediate rolls. In the method for controlling shape, at the time of remarkably decreasing the tension on the outlet side of the final stand 14 where the shape is deteriorated, roll bending force is imparted in a direction in which upper and lower roll chocks of the final stand 14 are separated by setup control and, when the tension is raised, the roll bending force is imparted in the reverse direction.</p> |
