Where is the permanent magnet ferrite good? What are its advantages?

Permanent magnet ferrite is one of the very common magnetic materials in daily life. I believe that friends who have been in contact with permanent magnet ferrite have a basic understanding of permanent magnet ferrite, but most people still don’t understand it, but when it comes to speakers, everyone will It won't have the feeling that it was originally it.

That's right, in fact, the commonly used raw material for horns, especially car horns, is permanent magnet ferrite. So, where is it good? What are its advantages?

The benefits and advantages of permanent ferrite:

1. Low cost of permanent magnet ferrite, low price of raw materials, good cost performance;

2. Good temperature stability, permanent magnet ferrite can be used at temperatures of minus 40 degrees Celsius and plus 350 degrees Celsius;

3. The chemical name of permanent magnet ferrite is iron tetraoxide. Since it is already an oxide of iron, it is difficult to be oxidized again, which leads to the advantages of no rust and no oxidation;

4. Permanent magnet ferrite is light in weight and high in resistivity.