Ring shape High Temperature Alnico 8 Magnet , Aluminum Nickel Cobalt Magnet
| Place of Origin: | Zhejiang |
|---|
Company Profile
| Location: | Shenzhen, Guangdong, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
| Main Products: | Neodymium Block Magnets, Sintered NdFeB Magnet, Rare Earth Magnet |
Product Detail
| Model No.: | 81000 |
|---|
Product Description
Quick Detail:
1. Density - 7.3 g/cm3
2. Manufacturing process - casting (most common)
3. Various shapes- blocks, bars, discs, rings, horseshoes, cylinders, etc.
4. Ground Surface
Cast Alnico magnet is composed primarily of Aluminum, Nickel, Cobalt, Copper and Iron. It has very
good corrosion resistance and high temperature operation.
Although other magnetic materials offer greater energy and coercivity values, the high remanence
and thermal stability of AlNiCo makes it the most effective magnetic material for certain applications,
like generator, microphone, lifting, voltmeter and measuring instruments. It is widely applied in high
stability fields like aerospace, military, automobile and security systems.
|
Physical Properties of Cast Alnico |
|
|
Curie Temperature () |
760-890 |
|
Max. Operating Temperature () |
450-550 |
|
Resistivity (μohm.cm) |
47-54 |
|
Hardness (Hv) |
520-630 |
|
Density (g/cm³) |
6.90-7.30 |
|
Relative Recoil Permeability (μrec) |
1.70-4.70 |
|
Saturation Field Strength (kOe,kA/m) |
2.7-6.3/215-500 |
|
Temperature Coefficient of Br (%/) |
-0.025 ~ -0.02 |
|
Temperature Coefficient of iHc (%/) |
+0.01 ~ +0.03 |
Applications:
Holding magnets
Sensors and transformers
Security systems
Relays
Chucks
Instrumentations
Magnetic switches
Safety Controls
Motors and Generators
Receivers
Telephones
Microphones
Bell ringers
Loudspeakers
Performance of Cast AlNiCo Magnets
|
Grade |
Br |
Hcj |
Bhmax |
D |
MMPA |
α %/°C |
TC. |
TW. |
|
*LNGT18 |
5.8(580) |
1250 (100) |
2.20 (18.0) |
7.3 |
Alnico8 |
-0.02(+0.03) |
860 |
550 |
|
LNGT32 |
8.0(800) |
1250 (100) |
4.00 (32.0) |
7.3 |
Alnico8 |
-0.02(+0.03) |
860 |
550 |
|
LNGT40 |
8.0(800) |
1380 (110) |
5.00 (40.0) |
7.3 |
Alnico8 |
-0.02(+0.03) |
860 |
550 |
|
LNGT60 |
9.0(900) |
1380 (110) |
7.50 (60.0) |
7.3 |
Alnico9 |
-0.02(+0.03) |
860 |
550 |
|
LNGT72 |
10.5(1050) |
1400 (112) |
9.00 (72.0) |