The NdFeB magnets currently on the market are not magnetic in the production process, nor do they have the characteristics of mutual repulsion and attraction of magnets. NdFeB magnets can only become magnetic after undergoing the magnetization process. The neodymium iron boron magnet is magnetized.

   There are many ways to magnetize neodymium iron boron magnets. At present, there are two more commonly used methods to magnetize it. Method 1: DC magnetization, Method 2: Pulse current magnetization, these two methods are It is currently the mainstream magnetizing method on the market.

 1. DC magnetizing method:

The DC magnetizing method needs to use an electromagnet magnetizer in the process of magnetizing the neodymium iron boron magnet. Its structure is shown in the figure below. When the electromagnet magnetizer is magnetizing, the coil will be supplied with DC, and then The size of the gap between the two iron cores can be operated by adjusting the nut. Before charging the NdFeB magnet, we first need to treat the surface of the magnet with clean water, and then we need to put the NdFeB magnet into the charging The magnet is clamped in the iron core gap, and then when the direct current reaches the maximum value, the power supply can be cut off after the charging time reaches 3-4 seconds, and the magnet magnet has been magnetized.