NingBo BeiLun Meank Magnetics Co.,Ltd.
En

Ferrite Arc Magnets

Ferrite(ceramic) arc magnet is a kind of functional electronic component, called motor magnet, which is mainly used in DC micro motor. The magnetic properties of ferrite motor magnets tile show that they have high permeability at high frequency. In addition to the magnetic properties, dimensional tolerances and appearance of the permanent ferrite arc (segment) magnets meets the national standards and user needs. Another important criterion is mechanical strength. If the mechanical strength is not enough, the ferrite motor magnets will break during the installation and use, resulting in the scrapping of the motor. Generally, ferrite magnets used for small motors where there is no requirement for power density and torque density, such as water pump motor

Characteristics of Ferrite Arc Magnets

The arc(segment) shaped permanent magnets mainly made of SrO or Bao and Fe2O3 by sintering, which seems to be part of the ring magnets, are called ferrite arc/segment/tile magnets. Ferrite arc(segment) have the characteristics of low magnetic energy, not easy to corrode and not easy to demagnetize. In the whole permanent magnet industry, arc(segment) shaped ferrite magnets are the most important industrial magnets for various motors.

Production Process Of Ferrite Tile Magnets

The production process of sintered ferrite(ceramic) tile magnets are mainly divided into wet pressing anisotropic, dry pressing isotropic and dry pressing anisotropic. The difference between the isotropic and the anisotropic  lies in whether there is orientation magnetic field during the pressing. Here, the process of anisotropic wet pressing is mainly introduced.

Wet compression process is: raw material - presintering - coarse crushing (a ball mill) - ingredients - the second ball mill (wet) - magnetic molding -sintering - clean grinding - the magnetization.

Because the forming slurry contains water, the forming particles are easy to turn in the magnetic field, so it can obtain higher orientation than dry pressure, and its performance is higher

Specification Of Ferrite Arc Magnets


Curie Temperature

450℃

Maximum Operating Temperature

250℃

Hardness

480-580 Hv

Density

4.8-4.9 g/cm³

Relative Recoil Permeability

1.05-1.20 u rec

Temperature Coefficient Of Br

-0.2% / ℃

Temperature Coefficient Of iHc

-0.3% / ℃

Tensile Strength

<100 N/mm²

Transverse Rupture Strength

300 N/mm²

Resistivity

> 104 Ω.cm

Specific Heat

0.15-0.2 cal/g.℃

Deflective Strength T

5-10 kgf/mm²


Get In Touch With BeiLun Meank
Get In Touch With BeiLun Meank

lf you have any questions, you can contact us to help you solve them.

May 18
2024
May 18
2024
If you're a fan of puzzles, fidget toys, or simply enjoy working with your hands, then you'll love the endless creative possibilities that come with 8mm magnetic balls. These tiny, powerful sp...
How to Create Intricate Designs and Shapes with 8mm Magnetic Balls
May 11
2024
May 11
2024
In recent years, 10mm magnetic balls have become a popular toy for both children and adults due to their unique properties and versatility. However, as with any magnetic toy, there are safety concerns...
Safety Concerns and Precautions When Playing with or Handling 10mm Magnetic Balls