Common sense, many people know that the magnetic properties of powerful magnets are very strong, especially large powerful magnets, easy to hurt people when using. So now to explain how powerful magnets can be eliminated magnetic?
In fact, the method is actually very simple, strong magnets are temperature resistant below 80 degrees, then we just put the strong magnet on the fire for a few minutes, to be cooled by putting it next to the iron, found that he has lost magnetism, no longer suck up. The reason why a strong magnet is magnetic is because the iron atoms in a strong magnet are arranged in a regular order. After it is heated, the original arrangement of iron atoms will be disordered, so it loses its original magnetic properties.
How to handle and store magnets safely?
Always be very careful, because the magnets will adsorb themselves together, then there is a risk of pinching your fingers. Magnets may also damage the magnet itself due to collision when they are attached to each other, resulting in the edge of the corner bursting or disconnection, etc. Then, keep magnets away from items that are easily magnetized, such as floppy disks, credit cards, computer monitors, watches, cell phones, medical devices, etc.
For larger size magnets, plastic or cardboard spacers should be added between each piece to ensure that the magnets can be easily separated. Magnets should be stored in a dry, constant temperature environment as much as possible.
So how should we do magnetic separation?
Only the material adhered to the magnet can play a role in isolating the magnetic field, and the thicker the material, the better the effect of magnetic isolation.
Notes on the use of strong magnets:
1. The magnet will gradually reduce the suction force in the process of long time use.
2. Pay attention to the positive and negative polarity of the magnets, they must not attract each other in the process of use, otherwise it is difficult to separate.
3. Strong magnets are not suitable for direct contact with iron and other rust-prone materials, easy to rust, surface treatment or coating protection is required.