Two rubber plastic magnetic, two plastic magnetic Ndfeb, two injection plastic magnetic, magnetic separation data is the principle of these three shielding. The effect of magnetic shielding is generally to maintain the electronic circuit from the column such as permanent magnet materials, transformer, motor, electromagnetic coil, cable and other magnetic field caused by the influence of natural shielding strong magnetic interference signals so that it can be free from the effect of surrounding components. But the chemical that blocks the external magnetic field is actually the iron itself. If you have a piece of iron or steel casing, you can protect the steel parts inside the casing from magnetic hazards. It does not decrease even if a product intended to be insulated is placed near a strong magnetic field. So shielding the magnetic field requires the use of magnetic materials. They call this magnetic shielding.

In addition, there is also a kind of magnetic separation but not completely magnetic separation of raw materials "silicon steel "; Silicon steel sheet is a ferrosilicon soft magnetic alloy with low carbon content. Silicon can be added to enhance the resistance of iron and large magnetic permeability, reduce magnetic energy product and magnetic timeliness; We call the silicon steel sheet between the two permanent magnet materials magnetic bridge.

The principle of magnetic separation bridge is that it has the effect of limiting magnetic leakage according to the saturation of magnetic flux at the position of magnetic bridge. Therefore, from the perspective of avoiding magnetic leakage, the smaller the thickness of magnetic separation bridge, the higher the actual effect of magnetic separation. If the damage of the rotor structure caused by the inertia force caused by the high-speed operation of the rotor is considered, the thickness of the magnetic separation bridge should be taken into account when the impact toughness of the rotor is reached.

In engineering design, in order to make magnetic components do not harm other components; Or to protect a component from external magnetic hazards. It's not the "partition" method; Just choose the "guide" method, that is, the soft magnetic material made of high magnetization screen