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[China]
Trade Verify
Address: No. 1104-1, No. 11 Duiying Road, Xiamen, Fujian, China
Contact name:Liu
Xiamen Hitech Magnetics Co., Ltd. |
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NdFeB permanent magnet is called the third generation rare earth permanent magnet and is the most permanent magnetic material with the highest magnetic properties. The main phase of the sintered NdFeB alloy is the intermetallic compound Nd2Fe14B, which has a saturation magnetic polarization (Js) of 1.6T<1>. Since the sintered NdFeB permanent magnet alloy is composed of the main phase Nd2Fe14B and the grain boundary phase, and the grain orientation of Nd2Fe14B is limited by the process conditions, the remanence of the magnet can reach 1.5T. The German vacuum melting company (Vacuumschmelze GmbH) produced a neodymium iron boron magnet with a maximum magnetic energy product (BH) max of 57 MGOe. Domestic NdFeB manufacturers can produce N50 grade magnets with a maximum magnetic energy product of 53MGOe. Increasing the alloy master ratio, increasing the degree of grain orientation and the density of the magnet, the maximum magnetic energy product of the magnet can be increased; but the theoretical value of the maximum magnetic energy product of the single crystal Nd2Fe14B is not more than 64 MGOe<1>.
The demagnetization curve of NdFeB at room temperature is similar
to a straight line. Therefore, when designing a permanent magnet
motor, it is often preferred to select a high-grade NdFeB (ie, the
material (BH)max is high) to obtain a high air gap magnetic
density. When the motor is running, due to the existence of the
alternating demagnetizing field and the sudden change of the load,
the demagnetizing field generated by the instantaneous large
current requires the selection of neodymium iron boron magnetic
steel with a sufficiently high coercive force.
The addition of an element such as ruthenium o the alloy increases
the intrinsic coercive force (jHc) of the NdFeB, but the remanence
(Br) of the magnet decreases. Therefore, the high-performance NdFeB
magnet for wind turbines takes into account its coercivity and
remanence.
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1:How long will you give me the reply?
we will contact you in 12 hours as soon as we can.
2:Could I get samples?
Yes,we have magnetic materials in stock to help you to get the samples as soon as we can.
3:How about the quality of the magnets?
We have the certification of ISO/TS and RoHS,we could send the certification test of our company to you.
4:How is the price?
As we believe the quality is the most important,we will provide the best quality neodymium magnets we can with reasonable price.
5:Could you provide me the shortest lead time?
We have magnetic materials in our stock,if you really need,you can tell us and we will try our best to satisfy with you.
6:Could I visit your factory?
Of course,if you need ,we will help you to visit our factory.
7:If I have paid,when will you help me to produce?
When we have received the money in our account,we will give you the receipt and arrange to produce immediately.
