NdFeB magnet is one of the most important magnetic materials in modern industry. Its magnetic performance far exceeds that of traditional ferrite magnets. It is one of the necessary raw materials for manufacturing high-precision electronic products and energy equipment.
As a new high-tech material, NdFeB magnets have many excellent properties. It has high magnetic properties, large magnetic energy product, and high magnetic field intensity, and can generate extremely strong magnetic fields in a small volume. At the same time, the stability of this kind of magnet is also very good, and it can maintain stable magnetic properties even in high temperature environments.
NdFeB magnets have a very wide range of applications and can be widely used in electronics, automobiles, machinery manufacturing, environmental protection and other fields. In production practice, it is necessary to demagnetize and then assemble, or demagnetize and then process it for other uses. Users' requirements are getting higher and higher, and there are more and more methods required. How to demagnetize NdFeB magnet? First, NdFeB magnets It is a strong magnet with high intrinsic coercivity and is difficult to demagnetize. Therefore, demagnetizing NdFeB requires the use of a high-energy pulse demagnetizer. Ordinary AC magnetic field demagnetizers are not suitable. Even a pulse demagnetizer must have enough energy and the demagnetization coil should be small. , demagnetization can be effective only if the demagnetization voltage is higher and the energy storage capacity is larger.
In addition, high temperature or high-frequency vibration can also be used to demagnetize. Due to the strong magnetism of NdFeB, it is difficult to demagnetize cleanly.
At present, there are only two better ways to demagnetize NdFeB. One is to demagnetize at high temperature. This temperature is generally above 800 degrees. This requires the purchase of a heating furnace and is very energy-consuming. It is difficult for ordinary organizations and individuals to do it. , and then there is the use of a demagnetizer mentioned above.
