Bonded NdFeB magnet
Bonded NdFeB magnet is made through "compression molding" or "injection molding" of the mixture of quick-quenched NdFeB magnetic powder and bonding agent. Due to its high accuracy in size, the bonded magnet may be formed into magnetic components of relatively complicated shapes. Also, it features single-time molding and multi-pole orientation. The injection molded magnet has a high mechanical strength and may be molded together with other matching parts.
Magnetic characteristics and physical properties of bonded NdFeB magnet (Compression Moulding)
| 性能和牌号Grade |
BNP-6 |
BNP-8L |
BNP-8 |
BNP-8SR |
BNP-8H |
BNP-9 |
BNP-10 |
BNP-11 |
BNP-11L |
BNP-12L |
剩磁
BrT(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 |
| 矫顽力HCBkA/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) |
| 内禀矫顽力HCJkA/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) |
| 最大磁能积(BH)maxkJ/m3(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） |
| 密度Dg/cm3 |
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 |
| 可逆磁导率μr |
1.15 |
1.15 |
1.15 |
1.13 |
1.15 |
1.22 |
1.22 |
1.22 |
1.26 |
1.26 |
| 可逆温度系数α（Br）%/℃ |
-0.13 |
-0.13 |
-0.13 |
-0.13 |
-0.07 |
-0.12 |
-0.11 |
-0.11 |
-0.11 |
-0.08 |
| 最高工作温度Tw℃ |
100 |
110 |
120 |
150 |
125 |
120 |
120 |
120 |
110 |
110 |
Magnetic characteristics and physical properties of bonded NdFeB magnet (Injection Moulding)
| 性能和牌号Grade |
BNI-3 |
BNI-4 |
BNI-5 |
BNI-6 |
BNI-6H |
BNI-7 |
BNI-5SR(PPS) |
剩磁
BrT(Gs) |
0.2-0.4 |
0.40-0.46 |
0.45-0.51 |
0.51-0.56 |
0.48-0.56 |
0.54-0.64 |
0.45-0.50 |
| 矫顽力HCBkA/m(kOe) |
120-240(1.5-3.0) |
250-335(3.1-4.2) |
280-360(3.5-4.5) |
295-375(3.7-4.7) |
335-400(4.2-5.0) |
320-400(4.0-5.0) |
300-360
(3.8-4.5) |
| 内禀矫顽力HCJkA/m(kOe) |
480-640(6.0-8.0) |
575-735(7.2-9.2) |
640-800(8-10) |
640-800(8-10) |
1035-1355(13-17) |
640-800(8-10) |
875-1115
(11-14) |
| 磁能积(BH)maxkJ/m3(MGOe) |
8-24(1.0-3.0) |
28-36(3.5-4.5) |
37-44(4.6-5.5) |
44-52(5.5-6.5) |
40-52(5.0-6.5) |
51-59(6.5-7.5) |
36-44
(4.5-5.5) |
| 密度Dg/cm3 |
3.9-4.4 |
4.2-4.9 |
4.5-5.0 |
4.7-5.1 |
4.8-5.2 |
5.0-5.5 |
4.9-5.4 |
| 可逆磁导率μr |
1.2 |
1.2 |
1.2 |
1.13 |
1.13 |
1.13 |
1.13 |
| 可逆温度系数α（Br）%/℃ |
-0.15 |
-0.13 |
-0.13 |
-0.11 |
-0.15 |
-0.11 |
-0.13 |
| 最高工作温度Tw℃ |
100 |
110 |
120 |
120 |
130 |
120 |
150 |
|
