Problems in the design of magnetizer head in magnetizer

      Magnetizer is a kind of equipment used to magnetize magnets, and when it comes to this kind of processing machinery, it can be used only after many designs and many tests. Since this kind of machinery generates strong electricity when it is in operation, it has a certain degree of danger, so it needs to go through many tests in advance to ensure that it can be used. When it comes to magnetizers, in fact, the magnetizing head is an important part of this kind of machinery. In fact, there are several problems in the design of this device. One is to ensure the magnetic field amplitude after magnetization. The magnetic field amplitude of the magnetic poles after magnetization is far from the general theoretical calculation and actual.

     This is because there are many factors that have not been considered. At the same time, the magnetic field is a spatial function. In order to make the theoretical calculation value accurate, it is necessary to solve the three-dimensional electromagnetic field. The workload and calculation amount are too large. Of course, the amplitude of the magnetic field is also affected by the dispersion of the permanent magnet material. Ensure the magnetic field waveform. To ensure a certain magnetic field waveform, it is necessary to calculate the distribution law of its excitation current, and the distribution of excitation current is limited by the magnetizing space. How to adjust it is indeed very difficult. On the other hand, due to the inhomogeneity, difference and instability of the permanent magnet material itself, it will also bring distortion to the magnetization waveform. In addition, the magnetic poles of the permanent magnets are connected to the iron yoke of the motor, and the eddy currents will also affect the magnetizing waveform. The coil of the magnetizing head will also deform under the action of strong electromagnetic force, resulting in the skew of the magnetic field waveform.