permanent magnet ring
0.1~10.0 USD
| Min. Order: | 10 Piece/Pieces |
|---|---|
| Trade Term: | FOB |
| Payment Terms: | L/C, T/T, WU |
| Supply Ability: | 100ton/month |
| Place of Origin: | Zhejiang |
Company Profile
| Location: | Ningbo, Zhejiang, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
Product Detail
| Model No.: | RM-R00 |
|---|---|
| Means of Transport: | Ocean, Air, Land |
| Application: | Speaker Magnet |
| Type: | Permanent |
| Composite: | Neodymium Magnet |
| Brand Name: | rainbow magnet |
| shape: | ring |
| coating: | ZN/NICUNI/EPOXY |
| grade: | N/M/H/SH/UH/EH/AH |
| Production Capacity: | 100ton/month |
| Packing: | standard carton by sea or by air |
| Delivery Date: | 4 weeks |
Product Description
permanent magnet ring magnetic energy parameters
Type | composition | Magnetic properties | ||||
Br/T | Hc /(Ka/m) | (BH)m/ (kJ/m3) | Tc/℃ | Density g/cm-3 | ||
Sinter NdFeB | Nd13.5(Fe,M)bananceB6.1-7.0 | 1.1-1.4 | 800-2400 | 240-400 | 310-510 | 7.4-7.6 |
Bonded NdFeB | Nd4-13(Fe,M)bananceB6-12 | 0.6-1.1 | 800-2100 | 56-160 | 310 | 5.3-6.0 |
AlNiCo 5 | 8%-12%Al,15%-22%Ni 5%-24%Co,3%-6%Cu. Balance Fe | 0.7-1.32 | 40-60 | 9-56 | 890 | 7.3 |
AlNiCo8 | 7%-8%Al,14%-15%Ni 34%-36%Co,5%-8%Ti, 3%-4%Cu,Balance Fe | 0.3-0.44 | 250-350 | 25-36 | 450 | 7.3 |
1:5,SmCo | 62%-63%Co,38%-37%Sm | 0.9-1.0 | 1100-1540 | 117-179 | 720 | 8.1 |
2:17,SmCo | Sm(Co0.69Fe0.2Cu0.1Zr0.01)7.2 | 1.0-1.3 | 500-600 | 230-240 | 800 | 8.2 |
Bonded smco | Sm(Co0.67Fe0.22Cu0.1Zr0.07Ti0.01)7.1 | 1.0-1.07 | 800-1400 | 160-204 | 810 | 7.4 |
The main physical properties of sintered NdFeB
magnetic properties | Parameters |
Density /g.cm3 Vickers Hardness HV Resistivity /υΩ.cm Compressive strength/N.mm-2 Coefficient of Thermal Expansion (C⊥)/K-1 Coefficient of Thermal Expansion (C∥) /K-1 | 7.45 570 150 780 -4.8X10-6 -3.4X10-6 |
Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.
permanent magnet ring has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.
The shortcoming is the low of the Curie temperature and the temperature characteristics, easy to rust, oxidation, Sintered NdFeB's surface is usually required for plating such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray epoxy resin to slow down the oxidation rate.
pls see attached pic permanent magnet rings for difference coating.
pls see attached pic permanent magnet rings for difference coating.
