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Injection Bonded NdFeB Magnets

Injection Bonded NdFeB Magnet:
1. the magnetic properties of NdFeB is more better than ferrite;
2. the dimensional accuracy of injection NdFeB better than compression;
3.suitable for complex shape
4. injection NdFeB can be injected directly into the rotor or stator components
5.injection NdFeB can be multi-polar magnetization.
6.used for stepper motor, brushless motor, DC motor, starter motor, DVD spindle motor, CD-ROM

Quantity:
  • DunBen
 Injection Bonded NdFeB Magnets
Detailed Info

Bonded NdFeB magnets are produced by binding rapid-quenching Nd-Fe-B powders which is are mixed with plastic resin to form a magnet by compression molding with epoxy and injection molding with nylon.

This technique is particular effective in large volume production, though the Remanence (BR) of the products is lower than those made with compression moulding, between ~200-630 mT, because of their relatively lower content of NdFeB powder. As almost any shape can be obtained, this technique can be used for overmoulding (e.g. directly injecting the bonded material onto a shaft), making this material an alternative for Ferrite segments in brushless motors.

It is also possible to combine bonded NdFeB techniques with other components to create subassemblies.
 

Features :
        1
, injection of the magnetic properties of NdFeB is more better than ferrite;
       2, the dimensional accuracy of injection NdFeB better than compression;
       3, injection NdFeB products suitable for complex shape;
       4, injection NdFeB can be injected directly into the rotor or stator components;
       5, anti-corrosion performance ,strength toughness
       6, injection NdFeB can be multi-polar magnetization.


Applications:
They are widely used for  stepper motor, brushless motor, DC motor, starter motor, DVD spindle motor, CD-ROM.

Typical Magnetic performance For Injection Molded NdFeB Magent(Room Temperature)

Grade Br HcB HcJ (BH)max Tw. P
[T] [GS] [KA/m] [Oe] [KA/m] [Oe] [KJ/m3] [MGOe] [] g/cm3
DBZ-3 2.0-3.0 200-300 160-240 2.0-3.0 480-640 6.0-8.0 12-24 1.5-3.0 100 3.9-4.4
DBZ-4 3.5-4.5 350-450 240-320 3.0-4.0 560-720 7.0-9.0 24-36 3.0-4.5 110 4.2-4.9
DBZ-5 4.5-5.2 450-520 320-360 4.0-4.5 560-720 7.0-9.0 36-44 4.5-5.5 120 4.5-5.0
DBZ-5H(PPS) 4.8-5.2 480-520 400-480 5.0-6.0 880-104 11.0-13.0 36-44 4.5-5.5 150 4.9-5.4
DBZ-6 5.0-5.5 500-550 360-440 4.0-5.5 640-800 8.0-10.0 44-52 5.5-6.5 120 4.7-5.1
DBZ-7 5.4-6.4 540-640 320-400 4.0-5.0 640-800 8.0-10.0 52-60 6.5-7.5 120 5.0-5.5
DBZ-8 6.4-7.4 640-740 400-480 5.0-6.0 640-800 8.0-10.0 68-76 8.5-9.5 120 5.5-5.9
 
injection molded BONDED FLOW CHART

CONTACT US

  Hang Zhou XiaoShan Dunben Magnet  Co., Ltd 
 1702, Unit 2, Building 1, Dacheng Mingzuo, Shiixn Road, Xiaoshan, Hangzhou, Zhejiang, China
  86-571-82750965 
  86-571-82751287
 wang@dbmagnet.com
 

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