Magnetic core factory

    Magnetic core: apply glue on the middle part of the shaft core-magnetic block and shaft core are placed in the mold and compacted-put into the mold and magnetized-magnetic force detection (completed to be assembled)

    Magnetic materials:

    Overview: Magnetism is one of the basic properties of matter. The phenomenon of magnetism is related to the movement of various forms of electric charge. Because the movement and spin of electrons inside the substance will produce a certain magnitude of magnetic field, magnetism is produced. All substances are magnetic. Nature can be divided into paramagnetic materials, diamagnetic materials, ferromagnetic materials, antiferromagnetic materials, and ferrimagnetic materials according to different magnetic properties. Among them, ferromagnetic materials and ferrimagnetic materials belong to ferromagnetic materials. Such substances are collectively referred to as magnetic materials.

    Classification, performance characteristics and uses of magnetic materials:

    1 Ferrite magnetic materials, generally refers to iron oxide Compatible with other metal oxides. Most of them are ferrimagnetic. Features: The resistivity is much higher than that of metals, about 1-10 (12th power) ohm/cm, so the eddy loss and skin effect are small, and it is suitable for high-frequency use. The saturation magnetization is low, so it is not suitable for high magnetic density occasions. The Curie temperature is relatively low.

    2 Ferromagnetic materials: refers to materials with ferromagnetism. For example, iron-nickel-cobalt and its alloys, alloys of certain rare earth elements. Below the Curie temperature, the material has a greater magnetization intensity when external magnetization is applied.

    3Ferromagnetic materials: refers to materials with ferrimagnetic properties, such as various ferrites, below the Neel temperature, the material has a larger Magnetization.

    4 Permanent magnet material: The magnet is magnetized thick to remove the external magnetic field and still has strong magnetism, characterized by high coercivity and large magnetic energy product. Can be divided into three categories, metal permanent magnets, examples, aluminum nickel cobalt, rare earth cobalt, rubidium iron boron and so on.

    Ferrite permanent magnets, for example, barium ferrite, strontium ferrite, other permanent magnets, such as plastics.

    5 Soft magnetic materials: materials that are easy to magnetize and demagnetize. Manganese-zinc ferrite soft magnetic material, its working frequency is between 1K-10M. Nickel-zinc ferrite soft magnetic material, the working frequency is generally 1-300MHZ