However, the temperature resistance of ndfeb magnets is probably around baidu, that is, more than baidu will appear demagnetization phenomenon, if the temperature is higher, the demagnetization phenomenon is more serious.
Several effective solutions to high temperature demagnetization of ndfeb magnets are presented
First, do not put the ndfeb magnet product in too high temperature, especially pay attention to its critical temperature, namely baidu, timely adjust its working environment temperature, so as to minimize the occurrence of demagnetization.
The second is to improve the performance of the products using ndfeb magnets from the technical point of view, so that they can have a more temperature structure and are not easily affected by the environment.
Third, you can choose high-coercive force materials with the same magnetic energy accumulation. If not, you have to sacrifice a little magnetic energy accumulation, and find materials with lower magnetic energy accumulation and higher coercive force, but no more, you can choose samarium cobalt; for reversible demagnetization, only samarium cobalt is available.