How to demagnetize NdFeB?

Nd-Fe-B is widely used, there are always various problems, such as how to magnetize Nd-Fe-B? What is the maximum working temperature of NdFeB magnet? Surface treatment of Nd-Fe-B and a series of other problems, and today we are going to talk about a friend’s concern about how to demagnetize the Nd-Fe-B strong magnet best?

• 1. Using pulse demagnetizer to demagnetize can achieve a certain effect, but it is impossible to achieve complete demagnetization. In addition to magnetization, magnetization effect may also be lost, about 99% of neutral magnetization, using thermal demagnetization, the best effect.
• 2. The magnet can also be heated to 150 ℃ and degaussed by pulse demagnetizer.