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 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 Moulding bonded NdFeB Magnets Grade | BNP-6 | BNP-8L | BNP-8 | BNP-8SR | BNP-8H | BNP-9 | BNP-10 | BNP-11 | BNP-11L | BNP-12L | 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 | 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) | 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) | (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) | 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 | μr | 1.15 | 1.15 | 1.15 | 1.13 | 1.15 | 1.22 | 1.22 | 1.22 | 1.26 | 1.26 | α(Br)%/grade | -0.13 | -0.13 | -0.13 | -0.13 | -0.07 | -0.12 | -0.11 | -0.11 | -0.11 | -0.08 | Tw(grade) | 100 | 110 | 120 | 150 | 125 | 120 | 120 | 120 | 110 | 110 |
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Process of Bonded compression Moulding NdFeB Magnets
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