The Research of the Metal Magnetic Memory´s Mechanism in Metal Component

The paper make out the efficient magnetic field expression of metal component on the base of Weiss´s molecular field theory, and the component´s molecular field parameter expression using the theory that energy is least. That give a theory explain to the theory that tangential component of leaking magnetic field have max and normal component have zero on the stress concentrating fields of metal component. In experiment there is good experimental data that manifest normal component of leaking magnetic field have zero on the stress concentrating fields of metal component. All that demonstrate the conclusion of the text.