Multipolar Isotropic Ferrite Ring Permanent Magnet, Ceramic Multi-pole Magnets, motor rotor permanent ring magnets, Radially Orientation Multi-polar Magnetic Ring, Anisotropic hard ferrite magnetic rings for electronic motors Multipolar Isotropic Ferrite Ring Permanent Magnet Features: Specification size: custom design drawing Magnetizing mode: Radial 6 poles Type: Permanent Magnet Tolerance: +0.1mm Composition: Sintered Ferrite Magnet (hard ceramic) […]
High-resistivity Sintered Laminated Magnet Arc-shape, N38EH Neodymium Laminate High Efficiency Motor Magnets, Phosphated neodymium segment magnets, Magnet Segmentation Technique, Permanent type Laminated Epoxy coated Magnets for high efficiency motors to eddy current reduction
High-resistivity Sintered Laminated Magnet Arc-shape Part No. HSLAMIM-37
Customzied Specific Requirements
OEM or ODM service: Accept
Grade: N38AH and N38EH
Surface Treatment: Phosphate / Epoxy
A permanent magnet built up of magnetized strips to obtain a high intensity of magnetization.
An electromagnet for ac circuits, having a laminated core to reduce eddy currents.
1.What the advantage of the laminated magnets ?
Laminated magnets can reduce eddy current loss in high efficiency motors, high efficiency demands the best material , and the laminated rare earth magnets are proved to reduce eddy current loss in high efficiency motors , Fewer eddy current loss means lower heat and greater efficiency . Neodymium Laminate High Efficiency Motor Magnets
The thickness available insulating layers less than 20UM ,the maximum working temperature can be up to 200℃ magnet layers from 0.5 mm and up ,custom shapes and size in neodymium magnet .
3. Application Scope :
Aerospace, automotive, motor sport and the industrial markets are turning to laminated neodymium magnets , it can be balance the power and heat better than the whole magnet .
The eddy current loss of rare earth magnet can be reduced by many ways, among them, the material science researchers have proposed to prepare the high-resistivity magnet, such as:
a. Bonded magnet.
b. High-resistivity sintered magnet.
Laminated Magnet is to cut the whole magnet into many small magnets, and then use specific glue to bond together. These small magnets are insulated from each other and can cut down electromagnetic eddy current.
When the permanent magnet motor is running, the motor will generate harmonic and the magnet will generate skin effect, these all will bring a lot of eddy current loss. And then, the temperature of permanent magnet rises, which results in irreversible demagnetization and affects the safety and stability of motor operation. So the design of laminated magnet can just cut down this risk.