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Bonded Neodymium Magnetic Compounds

Bonded Neodymium Magnetic Compounds

Bonded Neodymium Magnetic Compounds

Bonded Neodymium Magnetic Compounds Introductions

Bonded neodymium magnet (bonded NdFeB magnet) has high mechanical performance and no need for surface coating and other processes, which can effectively avoid the shortcomings of brittle and poor corrosion resistance of sintered NdFeB magnet.


Isotropic bonding neodymium magnets with complex shapes can be obtained through injection molding and subsequent magnetization process, there is no need to apply the magnetic field into an injection mold. Yet, it is necessary for anisotropic bonding neodymium magnets to apply the magnetic field into injection mold to magnetize magnets in a variety of patterns.


A bonded neodymium magnet can be magnetized in the axial, radial, multi-poles, or local direction, which is difficult for sintered NdFeB magnets.


Bonded NdFeB Magnet Material Properties

  • Several times stronger magnetic property than ferrite bonded magnet contributes to miniaturization and lightweight of parts.

  • High dimensional precision makes it suitable for precision parts.

  • The bonded neodymium/NdFeB magnet material can be wholly, partially magnetized, or demagnetized.


Applications of Bonded Neodymium Magnetic Compounds

Motor rotor; micro-sensor; micro-motor; electronic expansion valve; etc.


Specification of Bonded Neodymium Magnetic Compounds

GradeBrHcBHcJ(BH)max

neodymium magnet / NdFeB Mold density

Melt Flow RateIZOD Impact StrengthTensile StrengthFlexural StrengthComposition
Residual Flux DensityCoercive ForceIntrinsic Coercive ForceMaximum Energy Product
mTGskA/mOekA/mOekJ/m3MGOeg/cm3g/10minkJ/m2MPaMPa
NB2535335302473098725911221.82.733.791000255395NdFeB+PA12
NB30L138138102563211671843124.63.094.21800104075
NB4045545503003769697876034.74.364.52900145190
NB5050350303254078647813241.95.264.91400115085
NB7059259203704647681854956.77.135.3486084588
NB8064764703844829589740165.48.225.67335855100

NC1527627601952453679853113.61.713.521200940105NdFeB+PPS
NC2033633602352946656824119.72.483.861200940110
NC30370370026633469431184024.53.084.071000844110
NC30L38438402643310680854825.43.194.21900845110
NC40H447447031239158991129534.54.344.6140065387
NC50500500034042748771102342.15.295.0220064888
NC60533533037246728991129049.56.215.1115064383

HNB120a7867860461579086010800101.112.74.92500124886HDDR +PA12
HNB140a8218210501629010031260011314.25.1540074783

MFR Test Condition: NB/HNB series (270℃, 10kg); NC series (310℃, 10kg).


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