| 摘要 |
<p>PURPOSE:To skilfully control the flatness of plate stock by measuring the shape distribution in the width direction of the stock, obtaining its envelope, controlling mechanical correcting means of a rolling mill by this envelope and correcting parts having a difference between the shape distribution and the envelope through roll temperature control. CONSTITUTION:This is a shape controller for a rolling mill having groups 9, 10 of coolant nozzles composed of many nozzles which are arranged in parallel in the axial direction of operation rolls and can adjust flow rate independently and a mechanical means for correcting the shape. It provides a shape detector 8 which is provided on the outlet side of the rolling mill and measures the shape distribution in the width direction of the stock. An envelope which circumscribes or inscribes the measured distribution of shape in the width direction is obtained and the mechanical means for correcting the shape (roll benders) 16, 17, 18 are controlled by using a pattern into its width direction. By obtaining difference between the shape distribution in the width direction of the stock and the envelope, and controlling the flow rate of coolant nozzle groups 9, 10 with using the width direction pattern of the difference, coolant control high in responsiveness can be performed. By this method, the time for generating the shape correction effect can be shortened and the yield of a rolled part can be improved.</p> |
