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returnBonded NdFeB magnet is produced by molding compression of the compound NdFeB alloy powder with epoxy resin, also it can be made by injection or extrusion from NdFeB alloy powder mixed with plastic.
The characteristics are as follows:
1、Higher Magnet Property: the magnet property of bonded NdFeB magnet is between that of sintered NdFeB and ferrite, and with good consistency and stability.
2、Large Freeness of Product Shapes and High Precision of Dimension: the magnet shape and dimension are decided by the tooling, like ring, segment, block, etc., without further sintering and mechanical machining processes.
3、Good Corrosion Resistance: after electrodeposited or through other special treatments, it can be used under normal or unfavorable environment conditions for a long time.
4、Diverse magnetization: Multi-pole magnetization and screw angle magnetization are available, and the field distribution could be square, sinusoid and so on.
5、It has high production efficiency, suitable for mass production.The bonded NdFeB magnet is mainly used for all kinds of micro–miniature motors, such as spindle motor, stepping motor, synchronous motor, DC motor and brushless DC motor. It can replace sintered NdFeB magnet and ferrite, making motor assembling simpler and more reliable, reducing costs and improving efficiency.
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粘結(jié)壓制成型NdFeB磁性能和物理特性 |
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MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTIES OF BONDED COMPRESSION MOULDING NdFeB |
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性能 Grade |
BNP-6 |
BNP-8 |
BNP-10 |
BNP-12 |
BNP-8H |
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剩磁感應(yīng)強(qiáng)度 Br T |
0.52-0.60 |
0.60-0.65 |
0.65-0.70 |
0.70-0.76 |
0.55-0.62 |
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矯頑力 bHc KA/m(KOe) |
304-360 |
360-440 |
360-464 |
424-480 |
400-480 |
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(3.8-4.5) |
(4.5-5.5) |
(4.5-5.8) |
(5.3-6.0) |
(5.0-6.0) |
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內(nèi)稟矯頑力 IHc KA/m(KOe) |
640-800 |
640-960 |
640-960 |
640-880 |
960-1280 |
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(8.0-10.0) |
(8.0-12.0) |
(8.0-12.0) |
(8.0-11.0) |
(12.0-16.0) |
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最大磁能積 BHmax KJ/m3(MGOe) |
40-56 |
56-72 |
72-80 |
80-96 |
48-72 |
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(5-7) |
(7-9) |
(9-10) |
(10-12) |
(6-9) |
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密度 Density g/cm3 |
5.3-5.8 |
5.6-6.0 |
5.8-6.1 |
6.0-6.2 |
5.6-6.0 |
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可逆磁導(dǎo)率 Recoil Permeability m |
1.15 |
1.15 |
1.22 |
1.22 |
1.15 |
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可逆溫度系數(shù) α Br %/℃ |
-0.13 |
-0.13 |
-0.07～-0.11 |
-0.13 |
-0.07～-0.13 |
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工作溫度 Working Temp.℃ |
140 |
140 |
120 |
130 |
120 |
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粘結(jié)注射成型Nd-Fe-B磁性能和物理特性 |
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MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTIES OF BONDED INJECTION MOULDING NdFeB |
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性能 Grade |
BNI-2 |
BNI-4 |
BNI-6 |
BNI-8 |
BNI-6H |
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剩磁感應(yīng)強(qiáng)度 Br T |
0.20-0.40 |
0.40-0.49 |
0.49-0.57 |
0.57-0.63 |
0.48-0.56 |
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矯頑力 bHc KA/m(KOe) |
120-240 |
240-310 |
310-380 |
380-430 |
330-400 |
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(1.5-3.0) |
(3.0-4.0) |
(4.0-4.8) |
(4.8-5.4) |
(4.2-5.0) |
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內(nèi)稟矯頑力 iHc KA/m(KOe) |
560-720 |
570-730 |
635-796 |
676-835 |
1035-1353 |
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(7.0-9.0) |
(7.2-9.2) |
(8.0-10.0) |
(8.5-10.5) |
(13.0-17.0) |
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最大磁能積 BHmax KJ/m3(MGOe) |
6.4-24 |
28-36 |
42-56 |
59-67 |
40-52 |
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(0.80-3.0) |
(3.5-4.5) |
(5.2-7.0) |
(7.4-8.4) |
(5.0-6.5) |
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密度Density g/cm3 |
3.5-4.0 |
4.0-5.0 |
5.0-5.5 |
5.0-5.5 |
5.0-5.5 |
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可逆磁導(dǎo)率 Recoil Permeability m |
1.25 |
1.2 |
1.2 |
1.2 |
1.13 |
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可逆溫度系數(shù) α Br %/℃ |
-0.15 |
-0.1 |
-0.1 |
-0.1 |
-0.15 |
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工作溫度 Working Temp. ℃ |
130 |
130 |
110 |
120 |
110 |
