NdFeB injection molding magnet
2019-12-05
Product description
The injection molding magnetic system uses magnetic powder and thermoplastic plastics (PA6, PA12, PPS) to be mixed and granulated. After injection molding, the magnet can be directly combined with the motor core, shaft or other accessories through this process To save subsequent complicated assembly procedures. NdFeB injection molding magnetism uses permanent magnet NdFeB magnetic powder with strong magnetic energy product, which makes its magnetic performance better than iron oxide injection magnetism. In addition, another characteristic of injection-molded injection magnets is that they will vary in temperature resistance due to the different adhesives used. At present, the highest temperature-resistant adhesive is PPS. 180 ° C.
Features
Injection magnetism can be used for thin wall and special-shaped design, and magnetic field design can be used for axial, radial or multi-pole magnetic field and composite magnetic field design.
During the injection molding process, the motor core, shaft or other accessories can be directly placed into one piece, which saves subsequent assembly costs or complicated assembly processes.
Injection magnets have high precision, good consistency, and stable performance. They are widely used in automation equipment, stepper motors, air conditioners, automatic sensors, meters, brushless motors and high-end home appliances.
| Grade | Br | bHc | iHc | BHmax | Max Working Temp. | Temp. Coeff. of Br | Recoil Permeability | Density |
|---|---|---|---|---|---|---|---|---|
| BNI-3 | 3.50 ~ 4.50 KG 350 ~ 450 mT | 2.50 ~ 3.50 KOe 200 ~ 280 KA/m | 5.00 ~ 8.00 KOe 400 ~ 640 KA/m | 2.50 ~ 3.50 MGOe 20 ~ 28 KJ/m3 | 120 ℃ | 1.2 μT | -0.11 %/℃ | 4.5 ~ 5.0 g/cm |
| BNI-4 | 4.00 ~ 5.00 KG 400 ~ 500 mT | 3.00 ~ 4.00 KOe 240 ~ 320 KA/m | 7.00 ~ 9.00 KOe 560 ~ 720 KA/m | 3.50 ~ 4.50 MGOe 28 ~ 36 KJ/m3 | 120℃ | 1.2 μT | -0.11 %/℃ | 4.5 ~ 5.0 g/cm3 |
| BNI-5 | 4.50 ~ 5.50 KG 450 ~ 550 mT | 3.80 ~ 4.50 KOe 304 ~ 360 KA/m | 8.00 ~ 10.00 KOe 640 ~ 800 KA/m | 4.50 ~ 5.50 MGOe 36 ~ 44 KJ/m3 | 120 ℃ | 1.2 μT | -0.11 %/℃ | 4.5 ~ 5.1 g/cm3 |
| BNI-6 | 5.00 ~ 6.00 KG 500 ~ 600 mT | 4.10 ~ 4.80 KOe 328 ~ 384 KA/m | 8.00 ~ 10.00 KOe 640 ~ 800 KA/m | 5.50 ~ 6.50 MGOe 44 ~ 52 KJ/m3 | 120 ℃ | 1.2 μT | -0.11 %/℃ | 4.7 ~ 5.2 g/cm3 |
| BNI-7 | 5.50 ~ 6.50 KG 550 ~ 650 mT | 4.30 ~ 5.00 KOe 344 ~ 400 KA/m | 8.00 ~ 10.00 KOe 640 ~ 800 KA/m | 6.50 ~ 7.50 MGOe 52 ~ 60 KJ/m3 | 120 ℃ | 1.2 μT | -0.12 %/℃ | 4.7 ~ 5.3 g/cm3 |
| BNI-5SR (PPS) | 4.50 ~ 5.50 KG 450 ~ 550 mT | 4.00 ~ 5.00 KOe 320 ~ 400 KA/m | 11.00 ~ 14.00 KOe 880 ~ 1120 KA/m | 4.50 ~ 5.50 MGOe 36 ~ 44 KJ/m3 | 180 ℃ | 1.2 μT | -0.11 %/℃ | 4.7 ~ 5.3 g/cm3 |
| BNI-6SR (PPS) | 5.00 ~ 6.00 KG 500 ~ 600 mT | 4.00 ~ 5.00 KOe 320 ~ 400 KA/m | 11.00 ~ 14.00 KOe 800 ~ 1120 KA/m | 5.50 ~ 6.50 MGOe 44 ~ 52 KJ/m3 | 180 ℃ | 1.2 μT | -0.11 %/℃ | 4.8 ~ 5.2 g/cm3 |
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