研究了以PLC为核心的感应加热控制系统,给出了镁合金连续挤压与感应加热的工艺结合关系,设计了控制系统的硬件。通过加热实验开发了控制系统软件,并验证了该系统的精确性与可靠性,为镁合金连续挤压的实现提供了必要条件,具有显著的经济和社会效益。 The induction heating control system with PLC as the core is studied. The relationship between the process of continuous extrusion of magnesium alloy and induction heating is given, and the hardware of the control system is designed. The control system software was developed through heating experiment, and the accuracy and reliability of the system were verified. It provided the necessary conditions for the continuous extrusion of magnesium alloy, with significant economic and social benefits.