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Magnetic Material Ferrite/Ceramic Magnets

Country/Region china
Company Ningbo Beilun Meank Magnetics Co., Ltd
Categories Magnetic Materials
Telephone 574-86220016
ICP License Issued by the Chinese Ministry
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    Magnetic Material Ferrite/Ceramic Magnets

    Hard ferrite magnets belong to sintered permanent magnetic material, which made from oxide iron, barium, and strontium carbonate by ceramic processing technology, just because of the processing method, it also named as ceramic magnets in America.This magnetic material has strong ability to resist demagnetization and the advantage of low cost.
    Ferrite permanent magnets classified as isotropic and anisotropic. Isotropic ferrite magnets have weak magnetic strength, but it can be magnetized through different directions. Anisotropic ferrite magnets have stronger magnetic strength than isotropic, but it can be only magnetized through certain direction.
    By magnetic strength, ferrite magnets or ceramic magnets are much weaker than neodymium permanent magnets and SmCo magnets, but stronger than AlNiCo magnets. But its advantages of low cost, excellent corrosion and demagnetization resistance, which makes it widely used in the area of magnetic separator, speaker magnets, magnetic toys, office magnets, car magnets. From the aspect of shape, hard ferrite magnets are usually available as ceramic block magnets, ferrite ring magnets, ferrite disc magnets and ceramic block magnets. Ferrite disc magnets often used on office magnets, ferrite ring magnets often used to make loudspeaker, ferrite block magnets can be used to make separate magnets.
    Ferrite magnets (ceramic magnets ) was developed in the year of 1960, and it is lower in power (B, Br, BHmax) compared to other formulations, and are very brittle. However, they have very high Hcj and good Tc, and are quite corrosion-resistant. So ceramic magnets are a cost-effective choice.
    Ferrite magnets produced by powder metallurgy ways, the remanence is low, The coercive force is high, especially suit for magnetic structure used in the condition of dynamic operation. The material is hard and crisp, silicon carbide tools are used for cutting machine. The main material for ferrite magnets is oxide, not easy to be rust.

    Grade

    Br

    HcB

    HcJ

    (BH)max

    Work Temp

    China Standard

    IEC standard

    mT

    kA/m(min.)

    kA/m(min.)

    kJ/m(min.)

    (max.)

    Y10T

    HF 8/22

    200-235

    125-160

    210-280

    6,5-9,5

    250

    Y20

    HF 20/19

    320-380

    135-190

    140-195

    18,0-22,0

    250

    Y22H

    HF 20/28

    310-360

    220-250

    280-320

    20,0-24,0

    250

    Y23

    HF 22/30

    320-370

    170-190

    190-230

    20,0-25,0

    250

    Y25

    HF 24/16

    360-400

    135-170

    140-200

    22,5-28,0

    250

    Y26H

    HF 24/23

    360-390

    220-250

    225-255

    23,0-28,0

    250

    Y26H-2

    HF 24/35

    360-380

    263-288

    318-350

    24,0-28,0

    250

    Y28

    HF 26/16

    370-400

    175-210

    180-220

    26,0-30,0

    250

    Y25H

    HF 26/18

    360-390

    175-215

    215-230

    24,0-27,0

    250

    Y28H

    HF 26/24

    380-400

    240-260

    250-280

    27,0-30,0

    250

    Y28H-2

    HF 26/26

    360-380

    270-295

    380-405

    26,0-30,0

    250

    Y30

    HF 28/16

    380-385

    190-210

    200-220

    26,0-28,0

    250

    Y30BH

    HF 28/28

    380-400

    230-275

    235-290

    27,0-32,0

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