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Now the motor, electronic and communication technology requirements are more and more developed, and the required permanent magnet material needs more and more, and the performance is higher and higher. While most of the permanent magnet NdFeB, ferrite, alnico and SmCo, etc., and has the characteristics of stable performance, high coercivity, these materials with high voltage and large current power supply to the solenoid magnetizing moment of pulse discharge, the magnetization. To make the magnetizing machine more and more high, and now mostly use PLC to realize system control, touch screen as parameter adjustment, work display, etc.. PLC controls the advantages of the pulse magnetizing machine, which makes the magnetizing power supply efficient, stable and accurate. At the same time, the magnetic flux of the permanent magnet is tested at the same time. The magnetizing machine produced by Li Tian is a magnetizing and measuring machine with high efficiency and an automatic magnetizer. The system is controlled by PLC, and the touch screen is used as parameter adjustment and display of work. The magnetizing machine generates a strong magnetic field according to the pulse discharge of the capacitor energy storage to magnetize the ferromagnetic substance. Before the electromagnetic exchange, the energy stored in the capacitor, Uc is the terminal voltage of the storage capacitor, and C is the capacity of the storage capacitor. Change the capacitance voltage or capacity, can adjust the capacitor storage electric field energy size, magnetizing and measuring as one, efficient automatic magnetizing machine is the most suitable magnetizing machine.