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 maybe formed into magnetic components for 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 | |
Magnetic Properties of injection molding bonded NdFeB Magnets:
Grade | BNI-2 | BNI-2 | BNI-6 | BNI-8 | BNI-6H | |
Br (T) | 0.20-0.40 | 0.40-0.49 | 0.49-0.57 | 0.57-0.63 | 0.48-0.56 | |
HcB | KA/M | 120-240 | 247-310 | 312-382 | 382-430 | 334-398 |
KOe | 1.5-3.0 | 3.1-3.9 | 3.9-4.8 | 4.8-5.4 | 4.2-5.0 | |
HcJ | KJ/m3 | 560-720 | 573-732 | 637-796 | 676-835 | 1035-1353 |
KOe | 7.0-9.0 | 7.2-9.2 | 8.0-10.0 | 8.5-10.5 | 13.0-17.0 | |
(BH)Max | KJ/m3 | 6.4-24 | 28-36 | 42-56 | 59-67 | 40-52 |
MGOe | 0.8-3.0 | 3.5-4.5 | 5.2-7.0 | 7.4-8.4 | 5.0-6.5 | |
Density (g/cm3) | 3.5-4.0 | 4.0-5.0 | 5.0-5.5 | 5.0-5.5 | 5.0-5.5 | |
a Br (%/℃) | -0.15 | -0.1 | -0.1 | -0.1 | -0.15 | |
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