HOT FORMED NdFeB MAGNETS (MQ3)
Hot Formed NdFeB radially oriented ring magnets are produced by a unique hot extrusion process. As base nanocrystalline powder material is used made by rapid quenching (Neodymium) alloys. This powder material is hot pressed and then hot extruded into ring-shaped magnets. During this advanced hot extrusion process the radial orientation is created mechanically (orientation of the crystal grains is done without using any external electromagnetic field). Resulting in a full-dense, nanocrystalline structure with the highest level of radial orientation.
Main advantages of Hot Formed NdFeB Magnets (MQ3)
Due to the nanocrystalline structure of the grains a substantially lower amount of Dy is used compared to sintered NdFeB magnets.
Dy-free magnets can be made even with high coercivity level.
Ease of assembly (1 piece only).
Various magnetization patterns possible (multi-pole to uni-pole, various skew angles) by the design of magnetizing fixtures.
Precise magnetization waveform control (f.e. rectangular, trapezoidal, sinusoidal) for high power or low cogging.
Precise pole transition.
Excellent corrosion resistance due to the absence of internal porosity (full dense material).
Ring magnets with very small outer diameter are possible (due to mechanical orientation).
Material Structure Comparison
The pictures show the structure of sintered NdFeB and the nanocrystalline structure of Hot Formed NdFeB (MQ3). The nanocrystalline structure gives the Hot Formed NdFeB magnets their unique advantages (as mentioned above).
Radial Multipole Magnetic Ring for Rotor, Radial Multipole Magnetic Rings Motor Shaft Assembly, Multi-pole Magnetized Bonded Neodymium Ring, Neobond Radially Multipole Magnetic Rings, Rotor Multipolar Magnet China supplier G58B Radial Multipole Ring – 3 5/8″ – Neobond Multipole Radial Ring Part No. HSRMR-G32A Four grades of magnetic materials Cost effective design High resistance to demagnetization […]
Neobond Multipole Radial Ring, Radial Multipole Magnetic Rings Assembly, Multi-pole Magnetized Bonded Neodymium Ring, Neobond Radial Multipole Magnetic Rings, Sensor Multipolar Magnet China supplier G32A Radial Multipole Ring – 2″ – Neobond Multipole Radial Ring Part No. HSRMR-G32A Four grades of magnetic materials Cost effective design High resistance to demagnetization Operation from -40°C to 125°C […]
64 Poles Radial Multipole Ring, Radial Multipole Magnetic Rings Assembly, Multi-pole Magnetized Target Wheel, Bonded Neodymium Radial Multipolar Ring, Neobond Radial Multipole Magnetic Rings, Sensor Magnet China supplier G22 Radial Multipole Ring – 1 3/8″ – Radial Multipole Magnetic Rings Assembly Part No. HSRMR-G22 Four grades of magnetic materials Cost effective design High resistance to demagnetization […]