| 摘要 |
PURPOSE:To complete solidification in a target position and to maximize and quantity of heat contained by setting tracking points in the cooling zone of a continuous casting machine, forecasting the position where the solidification completes and the quantity of heat contained and operating optimum flow rates of cooling water. CONSTITUTION:Plural tracking points are set on a steel material from the molten metal level position of a mold up to a cutter. In a scheduling section 101 for cooling of steel materials in a control mechanism, the time when the specific tracking points arrive at the target position where the solidification completes in determined from the speeds of pinch rolls, etc. In an estimating section 103 for the cooling state of steel material, the quantity of the heat contained in the steel materials and the thickness of shells at the respective tracking points are calculated. In accordance with both sets of the information, the cooling water flow rates in the respective cooling zones for the purpose of optimum cooling at the respective tracking points are determined in a calculating section 102 for optimum cooling patterns, and the thus determined values are fed to a setting part 104 for flow rates, by which the flow rates of the cooling water in the respective zones are controlled. |
