Home > Products > Sintered Ndfeb Magnet > Rare Earth Sintered Ndfeb Magnet Disc For Sensors Speakers
Rare Earth Sintered Ndfeb Magnet Disc For Sensors Speakers
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Product Details
| Brand Name | ZJMAG | Place of Origin | China | |
Product Description
Certification:ISO 9001: 2008
? Rare Earth Sintered Ndfeb Magnet Disc For Sensors Speakers
Quick Detail:
1.Density – 7.4-7.6 g/ cm3
2.Manufacturing process –sintering (most common), injection molding, and compression bonding.
3.Various shapes - blocks, bars, discs, rings, arc, segments, sectors, fan shape, cylinders, etc.
4.Prone to oxidation, plating is recommended ( Ni-CU-Ni, Zn,Au,Epoxy, etc)
Neodymium Magnets (Neodymium Iron Boron Magnets), also known as NdFeB or Neo magnets, are the most widely-used type of rare earth magnet. It is the strongest type of permanent magnet made from an alloy of Neodymium, Iron, and Boron with the Nd2Fe14B tetragonal crystalline structure. It has replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners.
|
Physical Properties of NdFeB Magnet |
|
|
Density(g/cm3) |
7.3-7.5 |
|
Curie Temperature (℃) |
320 |
|
Max. Operating Temperature (℃) |
220 |
|
Relative Permeability |
1.05 |
|
Flexural Strength (N/nm2) |
250 |
|
Compressive Strength (N/nm2) |
1100 |
|
Tensile Strength (N/nm2) |
75 |
|
Hardness (Hv) |
550-650 |
|
Temperature Coefficient of Br (%/℃) |
-0.09~-0.12 |
|
Temperature Coefficient of Hcj (%/℃) |
-0.50~-0.65 |
Applications:
Sensors?and switches?
Linear actuators??
Microphone assemblies?? ?
Magnetic separators??
DC and servo motors???
Speaker Parts
Printers??
Magnetic hooks?
Computer rigid disc drives??
Beam controls??
Intelligent toys??
MRI/NMR
Performance of Sintered Neodymium Magnets
|
Grade |
Residual Induction |
Coercive Force |
Intrinsic Coercive Force |
Maximum Energy Product |
Maximum Operating |
||||
|
(Br) |
(Hc) |
(Hci) |
(Bhmax) |
Temp. |
|||||
|
(G) |
(mT) |
(Oe) |
(kA/m) |
(kOe) min |
(kA/m) min |
(MGOe) |
(KJ/m3) |
(°C) |
|
|
N35 |
11700 |
1170 |
10900 |
868 |
12 |
955 |
35 |
279 |
80 |
|
N38 |
12200 |
1220 |
11300 |
899 |
12 |
955 |
38 |
303 |
80 |
|
N40 |
12500 |
1250 |
11400 |
907 |
Contact Us
- Hangzhou Xiaoshan ZhiJiang Magnet Company Ltd
- Contact nameMs. Joanna Wu Chat Now
- Phone86-0571-82837863
- Address73021 State Farm, Ningwei town, Xiaoshan District, Hanzhoung, Shaanxi
Product Categories
| Cast Alnico Magnet | Electric Motor Magnets | Samarium Cobalt Magnet | Sintered Ndfeb Magnet |
| Strong Permanent Magnets |
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