Many people know that the characteristic of magnets is that they can absorb iron. Magnets can be used in many ways. How long magnetic properties last is perhaps a matter of concern.

Many people say that magnets can convert electrical energy into mechanical energy and mechanical energy into electrical energy. Because of this, the position of magnet in modern industry is irreplaceable. It is widely used in motor, electronics, mechanical equipment and other fields.

First of all, the NdFeB magnet should not be close to the electronic equipment, because the magnet itself has positive and negative poles and has a circuit circuit. If it is close, it will affect the electronic equipment and control circuit and affect the use.

2.Do not store the magnet in a humid environment to avoid oxidation, resulting in changes in appearance, physical properties and magnetic properties.

3.People who are sensitive to metal objects will have rough and red skin if they approach the magnet. If the above reaction occurs, please do not touch the magnet.

4.Do not put the magnet close to floppy disk, hard disk drive, credit card, magnetic tape, memory card, TV picture tube, etc. If the magnet is close to the magnetic recorder and other devices, it will affect or even destroy the recorded data.

If properly preserved, it can maintain magnetism for a long time. If you want not to weaken the magnetism of the magnet, you should pay attention to the following aspects:

1. Never place the magnet around the strong current;

2. The magnet cannot be roasted on the fire and can not be heated;

3. Magnets cannot be knocked and vibrated violently;

4. Small magnets cannot be put together with large magnets;

5. A piece of soft iron shall also be added to the two poles of the hoof magnet to connect the two poles, and the north and south poles of the adjacent magnets shall be inverted.

6. Small magnets (such as magnetic needles) cannot be placed together with large magnets;

Magnet manufacturers say there are two main factors affecting the magnetism of strong magnets: temperature and oxidation. When the temperature exceeds the maximum working temperature range of the magnetic material, the magnetism of the magnetic material decreases or disappears. When the coating is damaged, the magnetism of the magnetic material will weaken and weaken. Magnet manufacturers say that if they are not exposed to these conditions, the magnetic materials will still lose magnetism, but this degradation is very slow. It will be reduced by one percentage point every ten years, so there is no need to worry about demagnetization of the magnet when using it correctly.