Alnico magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium. Among all the available magnetic materials, they have high magnetic flux density, resistance to corrosion and excellent temperature stability, the maximum working temperature up to 600℃. Alnico magnet is widely used in all kinds of sensors and meters, electronics, instruments, medical instruments, teaching, automobile, aviation, martial and other applications.
There are two different manufacturing process for Alnico: Cast and Sintered Alnico. Cast Alnico can be made into intricate and complex shapes, which is not possible with other magnetic materials. Sintered Alnico is manufactured using a powder metallurgy process. while slightly weaker than cast alnico, It exhibits superior mechanical characteristics .
Cast Alnico Process Chart Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing
Sintered Alnico Process Chart Raw material ->powder-> forming-> sintered- >heat treatment-> surface treatment->precision grinding –>inspection- >packing
Radial Magnetized Magnet , Cast Alnico 5 and Cast Alnico 8 Base Magnets for Generators.
Quick Detail:
1. Comparatively high magnetic properties
2. Radial-orientated Magnetization
3. Cast surface or shiny surface
Applications:
Generator
Specifications:
| 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 |
Competitive Advantage:
1. High Temperature resistance
2. Comparatively high magnetic properties
3. Dimensional Stability
