Introduction of bonded NdFeB magnets
The magnetic properties of bonded NdFeB are lower than sintered NdFeB, but it can be made into magnets with high precision and complex shape. The raw material of bonded Nd-Fe-B is composed of rare earth magnetic powder and resin. It is compressed and formed by a press without magnetic field arrangement. Therefore, the direction of magnetic force is not limited. It can make inner diameter, outer diameter, upper and lower pole magnetization according to the needs of the design. It is one of the indispensable magnetic components for superior products such as light, thin and short. In order to delay oxidation corrosion, epoxy resin is used for surface treatment, with gray and black colors. The size precision of bonded magnet is very high, it can be made into relatively complex magnetic components, and it has the characteristics of one-time forming, multipole orientation and so on. The shaping of polarity is very elastic.
What shapes can be made by bonding NdFeB?
The shape of bonded NdFeB can be divided into: tile type (motor magnetic tile), cylinder, ring type (ring magnet), special-shaped bonded magnet, etc.
What are the magnetizing methods of bonded NdFeB?
The magnetization methods of bonded NdFeB can be divided into: thickness magnetization, radial multipole magnetization (external or internal), radiation magnetization (radiation ring), plane multipole magnetization, paired magnetization (tile magnet), radiation ring oblique magnetization, etc.
What are the physical properties of bonded NdFeB?
Density of bonded NdFeB: 5.8-6.2g/cm3
Curie temperature of bonded NdFeB: 310-340 ℃
Hardness of bonded NdFeB: 80-120hv
Resistivity of bonded NdFeB: 0.026 Ω. Cm
Compressive strength of bonded NdFeB: 3kgf / Mn2
Compressive bending of bonded NdFeB: 25kg / Mn