1. Vibration demagnetization method:
The operation of this method is very simple, that is, a strong and intense vibration is performed on a strong magnet. After the vibration operation, the internal structure of the magnet is changed, thereby changing the physical properties of the magnet. Generally speaking, the effect of this demagnetization method is used. Not big, 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 put the magnet into a high-temperature furnace for heating. After high-temperature treatment, the magnetism of the strong magnet will be removed, but during the heating process, the effect of high temperature will directly lead to the structure of the object inside the magnet. Great changes have taken place, so this method of demagnetization is generally used for scrapped and recycled magnets.
3. Magnet AC demagnetization method:
This method of demagnetization is to put the magnet into a space that can generate an AC magnetic field. After the interference of the AC magnetic field, the internal structure of the magnet will be disrupted, so that the effect of demagnetization can be achieved. This method is relatively common. Demagnetization method.
The above three methods are effective methods for the demagnetization of strong magnets, but in normal times, we still prefer the AC demagnetization method, which is more effective than the high-temperature demagnetization method and the vibration demagnetization method. The demagnetization efficiency is high. The most used method in production.