Tips and tricks for demagnetizing magnets

Magnet demagnetization is the process by which a magnet loses its magnetic properties and is commonly seen during prolonged use or incorrect handling. There are many reasons for magnet demagnetization, including high temperature, vibration, magnetic field interference, strong currents, etc. Demagnetized magnets lose their ability to attract and repel objects, and can even adversely affect other equipment. Magnet demagnetization can be repaired by remagnetization or by replacing the magnet with a new one. Methods to prevent magnet demagnetization include proper use and storage, avoiding magnetic field interference and overload, and regular inspection and maintenance.

1. Vibration demagnetization method:
This method of operation is very simple is to strong magnets for strong and intense vibration, after the operation of vibration and then the internal structure of the magnet has changed, thus changing the physical nature of the magnet this way into generally speaking using this demagnetization method is not very effective, only a small amount of demagnetization can be used temporarily.
2. High temperature demagnetization method.
The main operation of the high temperature demagnetization method is to throw the magnet into the high temperature furnace for heating, after the high temperature treatment will remove the magnetism of powerful magnets, but in the heating process because of the role of high temperature will directly lead to huge changes in the structure of the object inside the magnet, so the use of this demagnetization method will generally be used for scrap and recycled magnets.
3. Magnet AC demagnetization method:
This demagnetization method is to talk about the magnet into the space to produce AC magnetic field, after the AC magnetic field interference, the internal structure of the magnet will be disrupted, so you can achieve the role of demagnetization, with this method is a more common method of demagnetization of Dongguan magnet manufacturers.
The above three ways are effective methods for demagnetizing powerful magnets, but in general we still prefer AC demagnetization method than high temperature demagnetization method and vibration demagnetization method of good demagnetization efficiency.