Whether a magnet is good or not depends mainly on three parameters: residual magnetism Br, coercive force Hc, and magnetic energy product BHmax. Today, we will mainly talk about the indicators for measuring the magnetic performance of a magnet, corresponding parameters, as well as definitions and interpretations.

1、 Stability

The main parameters are residual magnetization and maximum magnetic energy product. The higher the value, the stronger the magnetic field, and the better the magnet can maintain its magnetic performance.

2、 Anti demagnetization

The main parameters are coercivity and intrinsic coercivity. The higher the value, the stronger the anti demagnetization ability and the higher the efficiency of use.

3、 Temperature resistance

The main parameter is the Curie temperature, which is the highest usage temperature. The higher the value, the better the temperature resistance performance.