Sintered NdFeB magnet is one of the high performance rare earth permanent magnets, which is composed of neodymium (Nd), iron (Fe), and boron (B).
Characteristics:
1. The NdFeB magnet has high remanence, high coercive force, high energy product and high ratio between performance value and product cost.
2. It can be easily formed into various sizes.
3. Smaller size and lighter weight in designing devices
4. Grade: N35-N52, 33M-50M, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH.
5. High energy range from 30MGOe to 53MGOe with wonderful coercive force
6. For most applications, coating will be recommended.
7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on.
8. Shape and size:Block,disc,ring,arc or segment,cylinder,sphere, or other special shaoe as per your demand.About limitation of size we can make: 2" max in magnetized direction,5" max diameter for discs and rings,1/32" minimum on thickness ,1/16" minimum diameter on outer diameter
9. Advantages:
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature
10. Disadvantages:
a) Working temperature is below 220°C.
b) Prone to oxidation than other magnet alloys
a) Working temperature is below 220°C.
b) Prone to oxidation than other magnet alloys
11.Production process:
Raw Materials-->Mixture--->Vacuum Melting--- > Powder Production--- >Molding ---> Vacuum Sintering--- > Testing--- >Mechanical Processing--- > Surface Treatment--- >Magnetized--- > Inspecting--- > Packing and Shipping.
12. Applications: Generators, servo motors, DC motors, computer rigid disc drives, Loudspeakers, annunciators, linear actuators, microphone assemblies, Magnetic separators, automatic mahjong machines, Toys and many other industries and etc.
