The role of ferrite magnets has the following points:

1, ferrite is not the highest temperature resistance to 450 degrees? Normal ferrite can only reach 200 degrees.

2, magnetic shielding, or absorption of electromagnetic waves.

3, there is adsorption, but the adsorption force is very small, a bunch of conductive effect, more in the motor.

Ferrite magnets are divided into permanent magnet ferrite, soft magnetic ferrite and microwave ferrite. Permanent magnet ferrites include barium ferrite and strontium ferrite. Soft magnetic ferrite is divided into manganese zinc ferrite, nickel zinc ferrite, magnesium zinc ferrite, microwave ferrite has yttrium ferrite and so on. There are hexagonal crystalline ferrite and so on. Ferrite magnets are hard and brittle, requiring special machining technology. The opposite-sex magnet, because it is oriented in the direction of manufacture, must be magnetized in the direction taken, while the same sex magnet, because it is not oriented, can be magnetized in any direction, although a slightly stronger magnetic induction is often found on the smallest side of the compression surface. The magnetic energy product ranges from 1.1MGOe to 4.0MGOe. Due to the low cost, ferrite magnets have a wide range of applications, from motors, speakers to toys, crafts, so it is currently the most widely used permanent magnet material.