| Application: | Industrial Magnet |
|---|---|
| Shape: | arc |
| Composite: | AlNiCo Magnet |
| Type: | Permanent |
| Brand Name: | Summit |
| Place of Origin: | China (Mainland) |
| packaging details: | cartons |
Quick Details
Specifications
Product Details
Alnico magnets, composed of primarily aluminum, nickel, and cobalt, were developed in the 1940's. This class of magnet remains a preferred material because of it's excellent temperature stability, high magnetic flux density, and resistance to corrosion. Alnico magnets are manufactured through a casting or sintering process. The casting process allows for the magnet to be manufactured into intricate and complex shapes, which are not possible with other magnetic materials.
Alnico Magnets Overview
Alnico magnetic material is an alloy of aluminum-nickel-cobalt which possesses an excellent temperature stability and high residual induction. However, its low coercive force limits its applications in many cases. Casting and sintering are two major processes used to manufacture the Alnico magnets.
Performance of Cast Alnico Magnets
|
CharacterIstics |
Max. Energy Product |
Br |
Hcb |
Hcj |
Density |
Temp.Coeffienct of Br. |
Curie point |
Remark |
|
|
(MGOe) |
(KGs) |
(KOe) |
(KOe) |
g/cm3 |
%/K |
°C |
Isotropic |
|
SAlNiCo4/1 |
0.40-0.60 |
8.7-8.9 |
0.11-0.14 |
0.13-0.15 |
6.8 |
-0.02 |
750 |
|
|
SAlNiCo8/5 |
1.07-1.19 |
5.3-6.2 |
0.57-0.63 |
0.59-0.65 |
6.8 |
-0.02 |
750 |
|
|
SAlNiCo10/5 |
1.19-1.38 |
6.3-7.0 |
0.63-0.73 |
0.63-0.73 |
6.8 |
-0.02 |
780 |
|
|
SAlNiCo12/5 |
1.38-1.63 |
7.0-7.5 |
0.62-0.70 |
0.66-0.73) |
7.0 |
-0.02 |
800 |
|
|
SAlNiCo14/5 |
1.63-1.88 |
7.3-8.0 |
0.59-0.63 |
0.63-0.67 |
7.1 |
-0.02 |
790 |
|
|
SAlNiCo14/6 |
1.76-2.00 |
6.2-8.1 |
0.70-0.81 |
0.73-0.83 |
7.1 |
-0.02 |
790 |
|
|
SAlNiCo14/8 |
1.76-2.00 |
5.5-6.1 |
0.94-1.11 |
1.00-1.16 |
7.1 |
-0.01 |
850 |
|
|
SAlNiCo18/10 |
2.00-2.39 |
5.7-6.2 |
1.16-1.26 |
1.24-1.34 |
7.2 |
-0.01 |
860 |
|
|
SAlNiCo29/6 |
3.64-4.15 |
9.7-12 |
0.73-0.80 |
0.75-0.83 |
7.2 |
-0.02 |
860 |
Anisotropic |
|
SAlNiCo30/6 |
3.77-4.27 |
10-11 |
0.73-0.80 |
0.75-0.83 |
7.2 |
-0.02 |
860 |
|
|
SAlNiCo42/10 |
5.27-5.77 |
9.5-11 |
1.26-1.38 |
1.30-1.43 |
7.2 |
-0.01 |
860 |
|
|
SAlNiCo33/11 |
4.14-4.77 |
7-8 |
1.34-1.45 |
1.39-1.50 |
7.2 |
-0.01 |
860 |
|
|
SANiCo35/5 |
4.40-4.90 |
11-12 |
0.60-0.65 |
0.63-0.68 |
7.2 |
-0.02 |
850 |
|
|
SAlNiCo37/15 |
4.65-5.15 |
7.0-8.0 |
1.76-1.85 |
1.88-1.98 |
7.2 |
-0.01 |
870 |
|
|
SAlNiCo39/12 |
4.90-5.40 |
8.3-9.0 |
1.45-1.54 |
1.50-1.60 |
7.25 |
-0.01 |
860 |
|
|
SAlNiCo44/12 |
5.53-6.03 |
9-9.5 |
1.50-1.60 |
1.56-1.66 |
7.25 |
-0.01 |
860 |
|
|
SAlNiCo40/15 |
5.02-6.03 |
7.5-8.5 |
1.80-1.90 |
1.95-2.05 |
7.2 |
-0.01 |
870 |
|
|
SAlNiCo44/15 |
5.53-6.03 |
8.0-8.8 |
1.86-2.00 |
1.95-2.05 |
7.2 |
-0.01 |
870 |
Performance of Cast Alnico Magnets
|
Characteristics |
Max. Energy Product |
Br |
Hcb |
Hcj |
Density |
Temp.Coeffienct of Br. |
Curie point |
Remarks |
|
|
(MGOe) |
(KGs) |
(KOe) |
(KOe) |
g/cm3 |
%/K |
°c |
Isotropic |
|
AlNiCo12/6 |
1.50 |
6.4 |
0.65 |
0.70 |
7.0 |
-0.03 |
810 |
|
|
AlNiCo13/6 |
1.63 |
7.5 |
0.65 |
0.70 |
7.0 |
-0.03 |
810 |
|
|
AlNiCo18/10 |
2.26 |
5.3 |
1.13 |
1.22 |
7.1 |
-0.01 |
860 |
|
|
AlNiCo20/11 |
2.51 |
6.0 |
1.26 |
1.36 |
7.3 |
-0.01 |
860 |
|
|
AlNiCo36/6 |
4.52 |
11.5 |
0.75 |
0.78 |
7.3 |
-0.02 |
850 |
Anisotropic |
|
AlNiCo38/5 |
4.77 |
12.0 |
0.63 |
0.65 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo40/5 |
5.03 |
12.5 |
0.62 |
0.63 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo44/5 |
5.53 |
12.7 |
0.65 |
0.67 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo52/6 |
6.53 |
13.0 |
0.71 |
0.72 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo60/6 |
7.54 |
13.5 |
0.74 |
0.75 |
7.3 |
-0.02 |
860 |
|
|
AlNiCo38/11 |
4.77 |
8.5 |
1.38 |
1.41 |
7.3 |
-0.01 |
860 |
|
|
AlNiCo40/17 |
5.02 |
7.5 |
1.96 |
2.11 |
7.3 |
-0.01 |
870 |
|
|
AlNiCo46/12 |
5.78 |
9.3 |
1.51 |
1.56 |
7.3 |
-0.015 |
860 |
|
|
AlNiCo48/16 |
6.03 |
8.2 |
1.81 |
1.98 |
7.3 |
-0.01 |
870 |
|
|
AlNiCo72/12 |
9.04 |
10.5 |
1.43 |
1.46 |
7.3 |
-0.015 |
850 |
|
|
AlNiCo80/12 |
10.04 |
10.8 |
1.51 |
1.53 |
7.3 |
-0.015 |
850 |
Key Advantages
Sintered Alnico Magnets:
- Excellent temperature stability
- Strong corrosion resistance
- The maximum working temperature is up to 500°c
- Fine grain
- Compact crystal.
- Excellent magnetic consistence and evenness.
- Suitable for small volume and complex shape magnets.
Cast Alnico Magnets:
- Excellent temperature stability
- Strong corrosion resistance
- The maximum working temperature is up to 500°c
- Excellent capacity
- High density and magnetic properties
- Shorter production lead time
- Temperature factor of Br is the smallest among all the permanent magnets
- Cast Alnico magnets can be produced in relatively complex shapes
- Tooling for cast Alnico magnets is relatively low, since sand molds are generally used for the casting process.
Quick Leads
- Density-7.34 g/cm3
- Manufacturing process - casting (most common), or sintering.
- Various shapes- blocks, bars, discs, rings, horseshoes, cylinders, etc.
- Wide range of grades- from about 0105 to 0519. (First 2 digits represent BH.max, and second two digits represent Intrinsic Coercivity, Hci.)
- Saturation magnetizing field required - about 5kOee.
Common Applications
Holding magnets Separators Sensors Security systems MRI Relays Magnetos