NOUFERROUS METALLURGICAL EQUIPMENT

A comprehensive control strategy combining arc pressure and melting rate is proposed for the automatic control system of vacuum consuming arc furnace, based on the furnace structure, technical specifications, and melting process. The calculation methods for compensating weight and melting rate were explained, and program design ideas were provided for each control method to ensure the effective implementation and precise regulation of the control system. In addition, this paper deeply analyzes the reasons for the coupling phenomenon between arc voltage and current, and proposes solutions. The application results showed that the melt speed fluctuation was reduced by about 28.2%, and the melt speed was well controlled to reduce the voltage fluctuation. The implementation of this control strategy has shown important practical value and theoretical significance in improving the operational stability of vacuum consumable arc furnaces, optimizing the melting process, improving production efficiency and product quality, and other aspects.