Ndfeb magnetic material - soft magnetic material its function is mainly the conversion and transmission of magnetic and electromagnetic energy. Therefore, this kind of material requires a high permeability and magnetic induction, while the area of the hysteresis loop or magnetic loss should be small. Contrary to the permanent magnet material, the smaller the Br and BHC, the better, but the larger the saturated magnetic induction intensity Bs, the better.

　　Ndfeb magnetic material - a soft magnetic material - iron powder core.

　　Ndfeb magnetic materials - soft magnetic materials can be broadly divided into four categories.

　　① Alloy thin strip or sheet: FeNi(Mo), FeSi, FeAl, etc.

　　② Amorphous alloy thin strip: Fe base, Co base, FeNi base or FeNiCo base with appropriate Si, B, P and other doping elements, also known as magnetic glass.

　　③ Magnetic medium (iron core):FeNi(Mo), FeSiAl, carbonyl iron and ferrite powder, after the electric insulating medium coating and bonding according to the requirements of the press forming.

　　④ Ferrites include spinel type ─ MO ·Fe2O3 (M represents NiZn, MnZn, MgZn, Li1/2Fe1/2Zn, CaZn, etc.) and magneto Pb type ─Ba3Me2Fe24O41(Me represents Co, Ni, Mg, Zn, Cu and their composite components).

　　Ndfeb magnetic material - soft magnetic material is widely used, Mainly used in magnetic antenna, inductor, transformer, magnetic head, earphone, relay, vibrator, TV deflection yoke, cable, delay line, sensor, microwave absorption materials, electromagnet, accelerator high frequency acceleration cavity, magnetic field probe, magnetic substrate, magnetic shielding, high frequency quenching energy, electromagnetic suction, magnetic sensitive components (such as magnetic thermal materials as switches).