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Ningbo Permanent Magnet Materials Co.,Ltd
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Permanent rare earth ndfeb ring multipole magnet
| Payment Terms: | T/T,L/C |
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
Ring magneti permanenti is similar to the hard disc Neodymium iron boron magnet, but feature a hole in the centre of magnete.
product name large permanent multipole magnet ring
Magnetic parameter and Conversion table
Surface treatments
The corrosion resistance of NdFeB (Neodymium) magnets is considered poor. Surface coating or plating is therefore highly recommended for NdFeB (Neodymium) magnets. All kinds of surface coating are available, like Nickel, Zn, Ni-Cu-Ni, Gold, Silver, Sn, Chrome and etc.
Application
Widely used in automobiles, mobile phones, digital cameras, jewelry, clothing, all kinds of hardware accessories, electrical, laser heads, toys, gifts, speakers, packing, leather goods, medical equipment and adverying, Switchboard, voice coil motors (VCM's) in hard disk drives, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors, loudspeakers etc.
Magnet ShapeCustomized shapes are available
Physical properties
Physical properties
| Temp.Coeff.OfBr | 0.11%ºC | Temp.Coeff.OfHc | -0.60%ºC |
| Density | 7.3-7.5g/cm² | ElectricalResistivity | 114μ.Ω.Cm |
| Vickers Hardness | 600Hv | FlexuralResitivity | 25kg/mm |
| Tensile Strength | 8.0Kg/mm² | Coeff.OfThermal Expansion | 4x10¯³/ºC |
| Specific Heat | 0.12Kcal/Kg | ThermalCondustivity | 7.7kcal/[m.h.ºC] |
| Young's Modulus | 1.6X10[11]N/m² | Rigidity | 0.64N/m² |
| Poisson's Ratio | 0.24 | Compressibility | 9.8x10-12m²/N |
| Curie Temperature | 310-340ºC |
Magnetic parameter and Conversion table
| UnitandSymbol | Sl-units | Conversiontable |
| Flux Density B | T(Telsa) | 1T=1Vs/m²=10kGs |
| Polarization J | T(Telsa) | 1T=1Vs/m²=10kGs |
| Magentic Field strength H | A/m | 1A/m=0.4τOe=1.257Oe |
| Energy density(BH)m | KJ/m³ | 1KJ/m³=0.126MGOe |
| Magnetic Flux Φ | Wb(Weber) | 1Wb=1Vs=10Mx |
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Company Info
Ningbo Permanent Magnet Materials Co.,Ltd [China (Mainland)]
Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)
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