Bonded NdFeB Magnet

Bonded NdFeB Magnet is also a important model of Neodymium magnet.

Bonded NdFeB magnet have a widely applications in micromotors used in computer and it's peripheral apparatus, OA products, digital appliances and automobiles, such as spindle motors for HDD, CDR, CD-RW, pick-up motors, synchronous motor and PM stepping motors and so on.

* Bonded NdFeB magnet lies between Sintered NdFeB magnet and Ferrite magnet in properties and is more stable.
Precise demensional tolerance (0.01mm), free from further maching, Easy for pressing into difference shapes like whin-wll rings, arcs and others.
* Radial magnetization and multi-pole magnetization.
Much higher corrosion resistance in comparision with Sintered NdFeB magnets.
* Making motors more ligher for its weight and is the ideal component of micro-motors
* Anisotropic bonded magnets with stronger magnetic property can be developed. 

Grade Remanence Coercive Force  Intrinsic
Coercive Force
Max. energy
product
Max.
Operating
Temperature

Curie

Temperature

Br
mT
(kGs)
Hcb
kA/m
(kOe)
Hcj
kA/m
(kOe)
 BH max kJ/m3
(MGOe)
TW TC
BDM-4 340-450 239-279 640-796 24-32 120 ℃ 320 ℃
(3.5-4.5) ( 3.0-3.5) ( 8-10) (3-4)
BDM-6 500-600 318-358 640-796 40-56 120 ℃ 390 ℃
(5-6) ( 4.0-4.5) (8-10) (5-7)
BDM-8 550-650 358-398 955-1115 60-80 150 ℃ 470 ℃
(5.5-6.5) ( 4.5-5.0) ( 12-14) (5-8.5)
BDM-10 650-700 398-439 640-796 72-80 150 ℃ 470 ℃
(6.5-7.0) ( 5.0-5.5) ( 8-10) (9-10)
BDM-12 700-800 439-478 717-876 80-96 >=80 ℃ 470 ℃
(7-8) (5.5-6.0) (9-11) 10-12
BDM-L 700-800 1159-199 175-239 36-52 >=80 ℃ 320 ℃
(7-8) (2.0-2.5) (2.2-3.0) (4.5-6.5)

 

Production Flow of Bonded NdFeB Magnet:

1. Material Powder 2. Pressing 3. Curing
4. Grinding and Ultrasonic Cleaning 5. ED Coating and CUring 6. Magnetization
7. Final Inspection  

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