| 摘要 |
<p>PURPOSE:To realize the correct plate width control without being influenced by the disturbance at temp. measuring time by providing the temp. detector to perform the temp. detection of a hot rolling stock just the above or just the below of a vertical roll and by controlling the roll gap based on the detected temp. thereof. CONSTITUTION:A temp. detector 2 is provided near the upper side or lower side of the roll center of a vertical roll 1 and within the range of 50cm at the upper stream side and 100cm at the downstream side in order to control the width rolling reduction of a hot rolling stock M by a vertical rolling mill correctly by depending it on the measuring temp. The plate width variation based on the temp. change of the rolling stock M is forecasted in a plate width control arithmetic unit 3 and the gap of the roll 1 necessary for denying this variation is operated. The arithmetic unit 3 outputs the arithmetic result to the rolling reduction control device as a signal. The correct plate width control not being influenced by the disturbance at the temp. measuring time can thus be realized.</p> |
