What are the effective solutions to high temperature demagnetization of NdFeB magnets?

Mar 15, 2024 Leave a message

Care must be taken when handling NdFeB magnets at high temperatures, because NdFeB magnets are prone to demagnetization at high temperatures. Below we will work with you to learn about the problem of high temperature demagnetization of NdFeB magnets. Since NdFeB magnets contain high NdFeB magnets, they are also prone to oxidation, so the various coatings that meet these conditions depend on the operating environment of the NdFeB magnets.

The reason why NdFeB demagnetizes in high temperature environments is determined by its physical structure. Generally, the reason why a magnet can produce a magnetic field is because the electrons carried by the material itself rotate around the atoms according to the direction, thereby generating a magnetic field force, which in turn affects surrounding related affairs.

However, the rotation of electrons around atoms in a predetermined direction is also subject to temperature conditions. Different magnetic materials can withstand different temperatures. When the temperature is too high, the electrons will deviate from the original orbit, causing chaos. At this time, the magnetic The local magnetic field of the material will be disrupted, resulting in demagnetization.

The temperature resistance of powerful NdFeB magnets is about 200 degrees, that is, if it exceeds 200 degrees, demagnetization will occur. If the temperature is higher, the demagnetization will be more serious.

Several effective solutions to high-temperature demagnetization of NdFeB magnets:

Do not expose NdFeB magnet products to excessively high temperatures. Pay special attention to its critical temperature, which is 200 degrees, and adjust its working environment temperature in a timely manner to minimize the occurrence of demagnetization.

We should start with technology to improve the performance of products using iron boron magnets so that they can have a warmer structure and be less susceptible to environmental influences.

Characteristics and Application of Injection Molded NdFeB