What is the relationship between intrinsic coercivity and magnetic induced coercivity in NdFeB magnets? If there is too much difference between the two, does it mean that there is something wrong with the formula? Or is the process out of control? There is no exact data correspondence between intrinsic coercivity and magnetic coercivity, only a positive correlation. The degree of correlation is influenced by the demagnetization characteristics (demagnetization curve) of magnets. The formula of the material basically determines the composition of the alloy, and there are genes that form magnets with set properties. The technological process (crystallization state of alloy cooling rate, particle size and particle size distribution, molding density and orientation of magnetic powder, sintering temperature and temperature uniformity, aging temperature and cooling rate) is culture.