How to magnetize neodymium - iron - boron magnets? Currently, neodymium - iron - boron magnets on the market do not have magnetism during the production process and do not have the characteristics of mutual repulsion and attraction of magnets. Neodymium - iron - boron magnets can only have magnetism after the magnetization process. So, how to magnetize neodymium - iron - boron magnets?
There are many methods of magnetizing neodymium - iron - boron magnets. At present, there are two relatively common methods to magnetize them. Method 1: DC magnetization. Method 2: Pulse current magnetization. These two methods are the mainstream magnetization methods on the market at present.
DC Magnetization Method:
During the process of magnetizing neodymium - iron - boron magnets by the DC magnetization method, an electromagnet magnetizer is needed. When the electromagnet magnetizer is magnetizing, the coil will be supplied with direct current. Then, the size of the gap between the two iron cores can be adjusted by adjusting the nut. Before magnetizing the neodymium - iron - boron magnets, we first need to clean the surface of the magnets with clear water. Then, we need to place the neodymium - iron - boron magnets in the iron - core gap of the magnetizer and clamp them. Then, when the direct current reaches the rated value and the charging time reaches 3 - 4 seconds, the power can be cut off and the magnets have been magnetized.
Pulse Current Magnetization:
For pulse current magnetization, a pulse current magnetization device is needed when magnetizing neodymium - iron - boron magnets. It is mainly composed of a pulse device and a magnetizing coil. Its magnetization field strength is very high. When it is working, a powerful pulse current passes through the magnetizing coil and the magnets in the magnetizing coil are magnetized by the instantaneous strong magnetic field.
