Bonded NdFeB
magnets are produced by binding rapid-quenching Nd-Fe-B powders
which is mixed with plastic resin to form a magnet by compression
molding with epoxy and injection molding with nylon. The injection
molding has particularly useful feature in molding very complicated
shapes and thin walled parts. The compression molded magnets
are limited for simple geometries, but they can offer higher
magnetic strength than injection molded magnets because of relative
high density. Bonded NdFeB have lower energy properties compared
with sintered NdFeB. However, it can be produced with high dimension
accuracy and shape complexity. Normally, there is no finishing
required for bonded NdFeB. In order to prevent corrosion, the
magnet surfaces are treated by epoxy coating or nickel plating.
Applications
of Neodymium:
- DC and Servomotors
- Linear actuators
- Magnetic separators
- Magnetic couplings
- Loudspeakers
- Microphone assemblies
- Holding and lifting
equipments
- Medical equipments
(MRI)
- Computer hard
disk drives
