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) […]
Permanent Type Laminate Phosphate Coated Segment Nd Magnet, China Factory Direct Low Eddy Current Losses Segment Laminated Sintered NdFeB Magnet, High-resistivity Arc-shaped Neodymium Laminate High Efficiency Motor Magnets, Segmentation Neo Magnets
Permanent Type Laminate Phosphate Coated Segment Nd Magnet Part No. HSLAMIM-39
Customzied Specific Requirements
OEM or ODM service: Accept
Grade: N38AH N38EH N35AH N35EH N35UH N38UH N33AH
Surface Treatment: Phosphate / Epoxy
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.
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.The thickness of insulating layers is within 0.04mm.
2. In normal temperature, the bond strength of insulating layers can reach more than 50Mpa.
3. The maximum working temperature can reach 200 ℃.
4. The whole geometric tolerance is within 0.05mm.
5. These small magnets are insulated from each other.
Application scope: Now aerospace, automotive, motorsport, and industrial markets are turning to laminated rare earth magnets, and are working to balance the tradeoff between power and heat.
Purpose: To reduce magnetic eddy current loss
As poor corrosion resistance of Iron-base and Nd-rich grain boundary, NdFeB magnets can’t be used until plated. Comparing with the expansion of elevator, wind turbines and permanent motors application, the customers need higher requirement on corrosion resistance of NdFeB magnets. Because the glue cohesiveness of un-plated products is much better than the plated products, Un-plated products will be better in the security. Now there are more and more customers want to use the un-plated magnets. Considering this situation, after the continuous innovation and study, our company developed ultra-low weight loss magnets. ( the unit of weight loss test is mg/cm2, how many milligram losing per Square centimeters), Generally speaking, the weight loss test is over 150mg/cm2 in the NdFeB industry, There is a great difference due to different Material formulation and manufacturing process. While our products can reach less than 1mg/cm2, (Testing condition: HAST standard for 168hrs), due to the very low weight loss, the corrosion resistance is excellent, the reliability and working life of these products have been improved obviously. These products can meet the strict requirement of corrosion resistance in the application of permanent motors and other fields. They are mainly used in elevator, radar, wind generators, military aerospace, industrial motors and other fields. High-resistivity Sintered Laminated Magnet Arc-shape Factory Direct Low Eddy Current Losses Segment Laminated NdFeB Magnet N38UH