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Bonded Magnet
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| Bonded Magnet: Bonded magnet is created via "compression molding" or even "injection molding" from the combination of quick-quenched NdFeB permanent magnetic natural powder as well as bonding agent because of its higher precision in dimensions, the actual bonded magnetic might be created into permanent magnetic aspects of fairly complex designs. The shot cast magnetic includes a higher mechanized power and could end up being cast as well as additional coordinating components. Its created along with higher effectiveness, balance as well as repeatability; Magnet along with other component might type collectively in a single action; Free of charge range of magnetizing direction-especially with regard to multi-polar programs; Higher dimensional accuracy-large amount programs along with minimal post-press machining; Thin-wall diamond ring as well as complicated form magnets; Higher opposition in order to deterioration. Usually, there are bonded NdFeB magnet and bonded SmCo. |
Bonded NdFeB magnet |
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Bonded NdFeB magnet with epoxy coating |
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Moulding Compression NdFeB |
Injection Moulding NdFeB |
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| Magnetic characteristics and physical properterties of bonded compression moulding NdFeB magnet |
Performance
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BNP-6 |
BNP-8L |
BNP-8 |
BNP-8SR |
BNP-8H |
BNP-9 |
BNP-10 |
BNP-11 |
BNP-11L |
BNP-12L |
B r T(Gs) |
0.55-0.62 |
0.60-0.64 |
0.62-0.69 |
0.62-0.66 |
0.61-0.65 |
0.65-0.70 |
0.68-0.72 |
0.70-0.74 |
0.70-0.74 |
0.74-0.80 |
H CB kA/m(kOe) |
285-370 (3.6-4.6) |
360-400 (4.5-5.0) |
385-445 (4.8-5.6) |
410-465 (5.2-5.8) |
410-455 (5.2-5.7) |
400-440 (5.0-5.5) |
420-470 (5.3-5.9) |
445-480 (5.6-6.0) |
400-440 (5.0-5.5) |
420-455 (5.3-5.7) |
H CJ kA/m(kOe) |
600-755 (7.5-9.5) |
715-800 (9-10) |
640-800 (8-10) |
880-1120 (11-14) |
1190-1440 (15-18) |
640-800 (8-10) |
640-800 (8-10) |
680-800 (8.5-10) |
520-640 (6.5-8) |
520-600 (6.5-7.5) |
(BH) max kJ/m 3 (MGOe) |
44-56 （ 5.5-7 ） |
56-64 （ 7.0-8.0 ） |
64-72 （ 8.0-9.0 ） |
64-72 （ 8.0-9.0 ） |
64-72 （ 8.0-9.0 ） |
70-76 （ 8.8-9.5 ） |
76-84 （ 9.5-10.5 ） |
80-88 （ 10.0-11.0 ） |
78-84 （ 9.8-10.5 ） |
84-92 （ 10.5-11.5 ） |
D g/cm 3 |
5.5-6.1 |
5.6-6.1 |
5.8-6.1 |
5.8-6.1 |
5.9-6.2 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
μ r |
1.15 |
1.15 |
1.15 |
1.13 |
1.15 |
1.22 |
1.22 |
1.22 |
1.26 |
1.26 |
α（ B r ） %/ ℃ |
-0.13 |
-0.13 |
-0.13 |
-0.13 |
-0.07 |
-0.12 |
-0.11 |
-0.11 |
-0.11 |
-0.08 |
T w ℃ |
100 |
110 |
120 |
150 |
125 |
120 |
120 |
120 |
110 |
110 |
1. The characteristics in this table are measured on CREM's standard test samples and not guaranteed values. |
2. The above values depend on magnet shape and its dimensions. It is recommended that the figures be certified in actual products. |
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MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTERTIES OF BONDED COMPRESSION MOULDING NdFeB MAGNET |
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| Typical Magnetic Performance for Bonded SmCo Magnet: |
Grade |
Br |
HcB |
HcJ |
(BH)max |
Curie Temp. |
Temp.Coe |
working T. |
IEC standard |
[mT]
[Gs] |
[KA/m]
[Oe] |
[KA/m]
[Oe] |
[KJ/m3]
[MGOe]] |
[℃] |
[%/℃] |
[℃] |
IEC
Equivalent |
SB6A |
400
4000 |
278
3500 |
800
10000 |
32
4.0 |
720 |
0.1 |
20 |
1:5 |
SB8A |
500
5000 |
318
4000 |
800
10000 |
48
6.0 |
720 |
0.1 |
120 |
SB10B |
600
6000 |
358
4500 |
800
10000 |
64
8.0 |
720 |
0.1 |
120 |
2:17 |
SB12B |
700
7000 |
318
4000 |
400
5000 |
80
10.0 |
720 |
0.1 |
120 |
SB12HB |
700
7000 |
398
5000 |
800
10000 |
80
10.0 |
720 |
0.1 |
100 |
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| Typical Magnetic Performance for Bonded Ferrite Magnet |
rade
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Br |
HcB |
HcJ |
(BH)max |
Curie Temp. |
Temp.Coe |
working T. |
IEC standard |
[mT]
[Gs] |
[KA/m]
[Oe] |
[KA/m]
[Oe] |
[KJ/m3]
[MGOe]] |
[℃] |
[%/℃] |
[℃] |
IEC
Equivalent |
FB11 |
63
630 |
50
6400 |
165
2100 |
1.0
0.1 |
450 |
0.190 |
250 |
HF 1/14P |
FB31 |
135
1350 |
85
1060 |
175
2200 |
3.2
0.4 |
450 |
0.190 |
250 |
HF 3/18P |
FB1A |
240
2400 |
175
2200 |
240
3000 |
11.0
1.4 |
450 |
0.190 |
250 |
HF 10/22P |
FB2A |
290
2900 |
190
2380 |
226
2840 |
16.0
2.0 |
450 |
0.190 |
300 |
HF 16/21P |
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Fax: (86)755 26915592
Tel: (86)755 26923096
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Address: China Rare Earth Magnet Limited
Room No. 705-707, Tower A Century Holiday Plaza,No.9030 Shennan Rd., OCT, Nanshan District, Shenzhen , China .
Post Code: 518053
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