Industrial magnet is called industrial monosodium glutamate, which is widely used. Industrial magnets can be divided into: aluminum nickel cobalt magnet, ferrite magnet, samarium cobalt magnet and neodymium iron boron magnet.
Description of characteristic parameters of four types of industrial magnets
Characteristic | unit | AlNiCo | Ferrite | Rare Earth Magnet | ||||
AlNiCo | Sintered Ferrite | Bonded Ferrite | Sintered Smco | Bonded Smco | Sintered Ndfeb | Bonded Ndfeb | ||
Residual Induction | kG | 11.5 | 4.4 | 3.1 | 11.6 | 8.5 | 14.2 | 7.3 |
Intrinsic Coercivity | kOe | 1.7 | 3.5 | 3.0 | >5.3 | 11 | >11 | 9 |
Maximum Energy Product | MGOe | 11 | 4.6 | 2.2 | 32 | 17 | 48 | 11 |
Temperature Coefficientα | %/K | -0.02 | -0.18 | -0.18 | -0.0.3 | -0.03 | -0.11 | -0.10 |
Curie Temperature | ℃ | 845 | 460 | 460 | 795 | 795 | 335 | 335 |
Flexure Strength | kgf/mm2 | 28 | 13 | 6 | 12 | 6 | 25 | 6 |
Hardness | 650 | 530 | 550 | 80-120 | 600 | 80-120 | ||
Electrical Resistivity | μΩ.cm | 60 | >1010 | 80 | 44000 | 150 | 26000 |
Description of Industrial Magnet Characteristics Distribution
For the permanent magnets commonly used in the market, we have aggregated the following figure to compare the characteristic distribution. The higher the upper right, the higher the magnetic energy product. It can be seen that the magnetic advantages of NdFeB sintered magnets over other magnets, and the magnetic advantages of NdFeB bonded magnets over Ferrite magnets.
Description of the advantages and disadvantages of industrial magnets
NdFeB Strong Magnet has obvious performance advantages in all aspects, but the disadvantages are low temperature resistance coefficient and easy oxidation.
Ferrite Magnets are cheap and versatile, but the disadvantage is that they have a low magnetic energy product.
AlNiCo has a good temperature coefficient, but the disadvantage is that it is relatively brittle and the price is not low.
Samarium Cobalt Magnets temperature coefficient and magnetic energy product are relatively balanced, but the disadvantage is high price.
Magnet users can choose suitable magnets according to their own needs and magnet characteristics.
Summary: The four types of industrial magnets have their own advantages and disadvantages.
N42SH grade radial hollow cylindrical magnet 6.3x3x11mm for high speed motors...
This product is a T-shaped strong magnet, the material is rare earth NdFeB, it is a custom-shaped irregular Nd magnet, the sample is N52 grade, the surface is nickel coated, mainly used for connectors, electronic products, medical equipment, the maximum working temperature It is 80 degrees Celsius. If you need to use it in a high temperature environment, you need to replace the temperature resistant material....
It is a custom shaped and powerful neodymium magnet. Rectangular block shape, magnetized in the direction of length. According to customer requirements, a round through hole is machined in the middle of the end face of the magnet....
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Neodymium magnet still offers the strongest magnetic power nowadays and has been widely served to vast kinds of application, include high-performance permanent motors, brushless DC motors, magnetic separators, magnetic resonance imaging (MRI), sensors,loudspeakers, consumer electronics, and green energy. The third generation of rare earth permanent magnet NdFeB is the most powerful permanent magnet in modern magnets. It not only has the characteristics of high remanence, high coercivity, high magnetic energy product, high performance-to-price ratio, but also is easy to be processed into various sizes. Now it has been widely applied in various fields. Especially suitable for the development of high-performance, miniaturized, lightweight alternative products....
Ferrite magnets, sometimes referred to as ceramic because of their production process, are the least expensive class of permanent magnet materials. Ferrite magnets became commercially available in the mid 1950’s and has since found its way into countless applications including arc shaped magnets for motors, magnetic chucks and magnetic tools....
Ferrite magnets, sometimes referred to as ceramic because of their production process, are the least expensive class of permanent magnet materials. Ferrite magnets became commercially available in the mid 1950’s and has since found its way into countless applications including arc shaped magnets for motors, magnetic chucks and magnetic tools....
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