| 摘要 |
PURPOSE:To improve the quality and yield of a product by obtaining the maximum measured width value of a rolled stock and by adding a margine and an SS value before biting a plate and after biting the plate, by setting the width of the side guide through adding the margine. CONSTITUTION:On the outlet side of rough rolling mill, the real plate width 12 of the rolled stock is measured by a width meter 11 extending over the whole length or at least at the top end part, the maximum width of the rolled stock is detected through a process computer 2. The computer 2 adds the control table value 5 consisting of the SS (short stroke) value and the margine to this maximum width to input into a plant controller 8, thus setting the side guide width before biting. After biting the plate, the width is set adding only the margine. Because the guiding is always performed with the optimum margine value ranging over before and after bitting, the generation of a seizure or edge fault is prevented. By this method, the quality and yield of the product of rolled stock are improved. |
