Neodymium (NdFeB) Magnets Overview
Neodymium (NdFeB) Magnets Overview
What is a Neodymium Magnet?
Nd-Fe-B magnet can be divided into two kinds of bonded and sinter.The bond is actually the injection molding molding and sintering of vacuum through high-temperature heating!
Ndfeb magnet has the strongest so far for magnetic force of permanent magnet, known as magnet king, with extremely high magnetic properties of its maximum magnetic energy product (10 times per cent) higher than the ferrite (ferrite BHmax.Its own mechanical processing performance is also quite good.The highest working temperature can reach 200°C.And its hard, stable performance, and has a good performance-price ratio, and their application is extremely wide.But because of its strong chemical activity, it must be on the surface of coating layer processing.(Such as Zn, Ni, electrophoresis, passivation etc.)
Temperature Considerations with Neodymium Magnets
A low coercivity grade Neodymium magnet may begin to lose strength if heated above 176°F (80°C). High coercivity grade Neodymium Magnetshave been developed to function at temperatures up to 428°F (220°C) with little irreversible loss. The need for low temperature coefficient in neodymium magnetapplications has triggered several grades to be developed to meet specific operating requirements. Please refer to our chart of magnetic properties to compare the characteristics of each grade
Neodymium Magnet Grades
Many grades of Neodymium exist to support a variety of industrial and commercial applications. The range of Neo grades is typically 33 to 52 MGOe. These ranges allow for balancing cost, magnetic performance, and operational temperature resistance
Magnetization Options
Although most commercial magnets are anistropic, which means they have a preferred direction of magnetization, various pole configurations can be achieved without conflicting with a Neodymium Magnet's orientation.
Corrosion Protection
While today's Neo magnets are more temperature and corrosion-resistant, a protective coating is still necessary for certain applications.
Neodymium Magnet Applications
- package closures
- displays and signs
- head actuators for computer hard disks
- magnetic resonance imaging (MRI)
- magnetic guitar pickups
- loudspeakers and headphones
- magnetic bearings and couplings
- permanent magnet motors
- cordless tools
- servo motors
- lifting and compressor motors
- synchronous motors
- spindle and stepper motors
- electrical power steering
- drive motors for hybrid and electric vehicles
- actuators
TCM Magnetic a leading manufacturer of neodymium (NdFeB) magnets, neodymium (NdFeB) magnet arc, discs, rings, sphere, blocks and cylinder, offers N52, N50 of permanent magnetic solutions for a wide range of industries.
