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Help CenterN40 / N42 Disc / Ring MRI Industrial Neodymium Magnets With Gold / Silver Coating
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Certification:ISO9001/ROHS/SGS
Strong Permanent Magnet with Rare Earth for Medical Area , MRI/NMR Electric component magnet
Product Description & Specification:
Applied in the MRI of sintered ndfeb magnet, It needs the high remanence ( Br) and max. energy product (BH) Max performance , in order to ensure the high definition and high resolution. Each MRI is used high performance sintered ndfeb magnet up to 5 to 6 tons.
NdFeb magnets are known for their high temperature resistance, making them durable and functional in
temperatures exceeding 200°C. This quality makes them ideal for heavy industry applications. Sintered
Neodymium, however, is sensitive to oxidization and easily can be corroded, so magnets usually need surface treatment .
1. Grades
Range: N35-N52; N35M-N50M;
N35H-N48H, N35SH-N45SH;
N30UH-N40UH, N30EH-N38EH.
Professional suggestions:
- The grade like N48-N52 could meet your requirements on strong power.
- Standard one like N35 or N40 is okay for your normal applications.
- If you have requirement on the working temperature, please note it.
Maximum Working Temperature:
N35-N52, 80°C(176°F)
35M-50M, 100°C(212°F)
35H-48H, 120°C(248°F)
35SH-45SH, 150°C(302°F)
33UH-40UH, 180°C(356°F)
33EH-38EH, 200°C(392°F)
28AH-35AH, 220°C(428°F)
2. Shapes
Others available: Block, Ring, Cylinder, Disc, Customized shape as your design.
3. Size
Block / Bar | Length x Width x Thickness |
Disc / Cylinder | Diamter x Thickness |
Ring | External Diamter x Internal Diameter x Thickness |
Irregular | According to customer\'s size or drawing request. |
You could choose freely according to your plan.
4. Coatings
Others available: Nickel, Zinc, Gold, Silver, Epoxy, Parylene, etc.
Coating and Corrosive Resistance of Sintered NdFeB |
||||||
Surface | Coating | colour | Thickness | Resistance can be | Corrosive Resistance |
|
PCT Test | Salt Spray Test |
|||||
Nickel | Ni/NiCuNi | Silver | 10-20 | 48h/72h | 72h | excellent |
Zinc | blue zinc/colour zinc | brightblue/shinyblue | 8-20 | 24 | 24 | good |
epoxy | epoxy/NiCu+Epoxy | black/grey | 15-25 | 48 | 96 | excellent |
Tin | NiCuSn | silver | 15-20 | 72 | 72 | superior |
Parylene | Parylene | grey | 15-25 | 96 | 200 | superior |
Teflon | Teflon | grey | 10-20 | 12 | 24 | superior |
Phosphorization | - | grey | 1-2 | - | - | temporary protection |
Passivation | - | grey | 1-2 | - | - | temporary protection |
5. Orientation
Through the direction of thickness or according to your needs.
a. Thickness Magnetized
b. Axially Magnetized
c. Diametrally Magnetized
d. Mult-poles Magnetized
e. Radial Magnetized
f. Customzied Specific Requirements Magnetized
6. Product process flows
7. Applications:
Competitive Advantage:
Please have the following information avaliable when you contact us.
We can manufacture a custom magnet for your application.If you have any question,please do not hesitate to contact me.
FAQ:
1.What’s the payment t
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