Research On Casting Process Control Methods Of Aluminum Ingot Casting Machine

One of the key technologies in the aluminum ingot continuous casting machine control system that is the casting process control, the casting process control have a direct decision to product qualities.At the present, the casting control is mainly artificial experience to adjust,this by manually adjustable control precision is relatively low,so quality of the product can not be guaranteed, and the labor intensity, casting site existence of the very unsafety risk factors also.The molten aluminum from flow the mixing furnace to the ingot casting process is a non-linear, time-varying large delay system, it is difficult to establish accurate mathematical model and the system there are multiple disturbances.By study and analysis the characteristics of the ingot casting process, and summed up the experience of manual casting control, The method be proposed for aluminum ingot casting process that is the two grade control system.Divided the aluminum ingot casting process into two parts,the two grade have its association. The method could effectively reduce the interference and the systems delay. Analysis and derived the respective rough model of the two systems,the internal model controller and fuzzy PID controller have be design based on system characteristics and control requirements.The simulation study results shows that the proposed control method can well satisfied the control requirements.Designed control system can improve the control accuracy, guarantee the product quality,raise the efficiency of the enterprise. Second, the system could reduce the operator's labor intensity and ensure operator safety.