| 摘要 |
<p>PURPOSE:To control the coiling temperature of a material to be rolled to the required temperature in the whole width direction, by computing the cooling water flow rate per unit width by detecting the temperature distribution in the width direction of the material, and controlling the flow rate of the water, to be supplied to headers, and the opening and closing of nozzles, basing on the computed results. CONSTITUTION:A material 1 to be rolled is rolled by rolling rolls 2 and is cooled by a spray cooling device 4 to be coiled by a coiling roll 3. At this time, each temperature in the width direction of the material 1 is detected by plural detectors 8, used for detecting the finishing temperature, to transmit each detected value to a computing device thereby computing each flow rate of cooling water per unit width of the material 1 by said device. Next, each adjusting valve 6 provided to the delivery side of a pump 5 is on-off controlled basing on the computed results to control the flow rate of cooling water to be supplied to each header 11 which is provided to each valve 6. Further, basing on the computed results, plural nozzles 12 attached respectively to the headers 11 are opened and closed by changeover devices 13, used for opening closing the nozzles and provided respectively to the nozzles.</p> |
