Compression NdFeB magnet is made through "compression molding" of the mixture of quick-quenched NdFeB magnetic powder and bonding agent.Due to its high accuracy in size, the bonded maget 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 Properties of compression molding bonded NdFeB Magnets:
Grade |
BNP-6 |
BNP-8 |
BNP-10 |
BNP-12 |
BNP-8H |
|
Br (T) |
0.52-0.60 |
0.60-0.65 |
0.65-0.70 |
0.70-0.76 |
0.55-0.62 |
|
HcB |
KA/M |
304-360 |
360-440 |
360-464 |
424-480 |
400-480 |
KOe |
3.8-4.5 |
4.5-5.5 |
4.5-5.8 |
5.3-6.0 |
5.0-6.0 |
|
HcJ |
KJ/m3 |
640-800 |
640-960 |
650-960 |
650-880 |
960-1280 |
KOe |
8.0-10 |
8.0-12 |
8.0-12 |
8.0-11 |
12-16 |
|
(BH)Max |
KJ/m3 |
40-56 |
56-72 |
72-80 |
80-96 |
48-72 |
MGOe |
5-7 |
7-9 |
9-10 |
10-12 |
6-9 |
|
Density (g/cm3) |
5.3-5.8 |
5.6-6.0 |
5.8-6.1 |
6.0-6.2 |
5.6-6.0 |
|
a Br (%/℃) |
-0.13 |
-0.13 |
-0.07- -0.105 |
-0.13 |
-0.07- -0.13 |
|
Tw (℃) |
140 |
140 |
120 |
130 |
130 |