Ningbo Nide Tech Co., Ltd
NINGBO NIDE TECH CO.,LTD We specialize in the field of electric motors, covering motor manufacturing machinery, DC motor,commutator,ball bearing and carbon brush.
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Magnets for automobile power seat motors are based on Y30-3 matericals grade and applicable for high-grade car power seat regulator.
Physical characteristics of permanent ferrite& technical property
| Item | Symbol | Unit | Value | Note |
| Temperature range | — | ℃ | -40~+80 | |
| Expand coefficient | αR | K-1 | 7~15X10-6 | |
| Density | d | g/cm³ | 4.5~5.1 | |
| Resistivity | p | Ω·cm | 104 ~ 108 | |
| Curie temperature | θc | ℃ | 460~480 | |
| Temperature coefficient of remanence | αBr | K-1 | -(0.18~0.20)% | 0~100 |
| Temperature coefficient of coercive force | αHCJ | K-1 | (0.20~0.50)% | 0~100 |
| Recoil permeability | μ | — | 1.05~1.30 | |
| Hardness | Hv | — | 480~580 |
Typical Demagnetization Cure
NIDE can offer a variety of motor magnets, please contact us if necessary.