2015年9月7日星期一

hot sale large injection plastic bonded magnet

hot sale large injection plastic bonded magnet
hot sale large injection plastic bonded magnet
Plastic bonded magnet materials can be created through injection molded, being made from ndfeb, strontium ferrite or a combination of the two. 
Injection molding plastic bonded magnet can be molded into complex shapes, but also molded directly onto components. 
Plastic bonded magnet can also be created through the process of compression bonding which offer higher magnetic output but are limited to simpler geometries than injection molded plastic bonded magnet materials. 
Compression plastic bonded magnet are often made from either ndfeb or SmCo powders.

Injection molded plastic bonded magnet:

  • Binder Types / Nylon / PPS / Polyamide.

  • Temperature Range -40c – 180c
  • Very Tight tolerances off tool ( 0.002 -0.003 Typical )
  • Very good mechanical strength

Compression plastic bonded magnet:

  • Higher Magnetic Strength due to higher magnetic particle density.
  • Epoxy Binder / Resistant to normal industrial solvents and automotive fluids
  • Epoxy Coat after manufacturing to prevent oxidation
  • Temperature Range -40c – 165c
  • “Tight” tolerances off tool
  • Good mechanical strength

Typical plastic bonded magnet applications:

  • Sensors
  • Brushless DC Motors
  • Audio-visual Equipment
  • office automation
  • magnetic therapy

General plastic bonded magnet advantages:

  • Materials are isotropic and can be magnetized in any direction
  • Wide range of existing tool sizes are available in rings, discs and rectangles
  • Exsisting Multipole magnetizing fixtures for quick prototyping
  • Easily machined
  • Existing Multipole rings simplify assembly verse arc sepments
Properties of plastic bonded magnet:
BNP-3BNP-6BNP-8BNP-8SRBNP-9HBNP-10BNP-11BNP-12L
Br (mT)450-510590-650620-670620-660650-700680-720700-740730-770
Br (Gs)4500-51005900-65006200-67006200-66006500-40006800-72007000-74007300-7700
Hcb(kA/m)199-263302-374390-454405-470421-484413-477430-493366-430
Hcb  kOe)2.5-3.33.8-4.74.9-5.75.1-5.95.3-6.15.2-6.05.4-6.24.6-5.4
Hcj  (kA/m)477-597597-796636-796955-1114915-1034636-796636-796517-637
Hcj  (kOe)6.0-7.57.5-10.08.0-10.012.0-14.011.5-13.08.0-10.08.0-10.06.5-8.0
(BH) max (kJ/m³)24-3244-53.660-6865.6-7272-8076-8480-8884-92
(BH)max (MGOe)3.0-4.05.5-7.08.0-9.58.2-9.09.0-10.09.5-10.510.0-11.010.5-11.5
Tw/ 120120120160160120120110

Picture of plastic bonded magnet
plastic bonded magnet
plastic bonded magnet
plastic bonded magnet
plastic bonded magnet

Production processing:

production processing of bonded ndfeb magnet


demagnetizing curve:
BN8
plastic bonded magnet
BN8SR
plastic bonded magnet
BN9H
plastic bonded magnet
BN10
plastic bonded magnet
BN12L
plastic bonded magnet
BNI6SR
plastic bonded magnet

Widely applications of bonded ndfeb magnet: stepper motors, brushless motors, DC motors, starter motor, DVD spindle motor, CD-ROM drive.
Bonded ndfeb magnets are mainly for the motor.
Motor manufacturers generally use bonded ndfeb magnet for motor, because of low assembly labor costs
Sintered magnet arc are often assembled piece by piece, glued to the rotor or stator
While, for boned ndfeb magnet, workers just only set bonded ndfeb magnet into rotor or stator after adhesive bonding.
So there is no high requirement of power, not only require great speed, then the motor manufacturers will use bonded ndfeb magnet for the high speed motor. 

Magnetizing method
Skrew-45°,8 Poles on OD, or oblique magnetized bonded ndfeb magnet
plastic bonded magnet
radial 2 poles magnetized bonded ndfeb magnet
plastic bonded magnet
radial 6 poles magnetized bonded ndfeb magnet
plastic bonded magnet
radial 12 poles magnetized bonded ndfeb magnet
plastic bonded magnet
radial 16 poles magnetized bonded ndfeb magnet
radial 16 poles magnetized plastic bonded magnet
radial 24 poles magnetized bonded ndfeb magnet
radial 24 poles magnetized plastic bonded magnet
radial multi poles magnetized bonded ndfeb magnet
radial multi poles magnetized plastic bonded magnet
radiant magnetized bonded ndfeb magnet
plastic bonded magnet
axial magnetizing bonded ndfeb magnet
plastic bonded magnet





Our plastic bonded magnet are certificated by CE, Rosh....
plastic bonded magnet
plastic bonded magnet
We would love to see how you have used our plastic bonded magnet.
Simply send us a photo of your plastic bonded magnet in use and if we use it on our website we will return you $10 next order (Amount more than $1000).

WARNING: Persons who are pregnant, wearing pacemakers, pacemaker defibrillators, insulin pumps, or electric insulin devices, should not use magnetic products.

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