Secondary cooling water-flow quantitative control manner of continuous casting machine, device and continuous casting manner, equipment

摘要

P To enable a continuous casting machine to stably continue a casting operation even when a controller is troubled and to produce a high-quality slab. PSOLUTION: When the flow rate of secondary cooling water in a continuous casting machine is controlled and the setting of a parameter for flow rate calculation (calculator 40) and the calculation of flow rate control (instrumentation controller 48) are performed by independent devices and thus casting can be stably continued even in case of device abnormality. The holding of one or more parameters for flow rate control and the joint tracking and width change tracking of a slab can be performed within the instrumentation controller 48 performing the calculation of flow rate control. PCOPYRIGHT: (C)2008 and JPO& INPIT