| 摘要 |
<p>PURPOSE:To elevate the yield of a plate material by arranging a vertical rolling mill and crop shear between rough and finishing rolling mill groups and by controlling, etc. the roll opening of a vertical rolling mill based on the position measured by the position detector of a rolling material and the plate width measured by a width meter. CONSTITUTION:A vertical rolling mill E7 and crop shear 5 are arranged nearby between a rough rolling mill group A and finishing rolling mill group B. A measuring roll 8 and hot metal detector 7 are arranged as a rolling material position detecting device on the inlet side of the rolling mill E7, also a measuring roll 9 is provided as well on the outlet side of the crop shear 5. A plate width meter 6 measures the plate width over the whole length of the rolling material 2 and an arithmetic unit 11 controls the opening of the rolls of the vertical rolling mill E7 with calculating the deviation with the target plate width and with matching the position with the position detecting devices 7, 8. In this way, the plate width controlling accuracy is elevated and accordingly the plate material yield is elevated.</p> |
