Alnico magnet was the first permanent magnet to be developed. It is an alloy composed of aluminum, nickel, cobalt, iron, and other trace metal elements. Due to their excellent properties such as high coercivity and high Curie temperature, Alnico magnets enjoy a wide range of applications. So in this article, let take a deeper look at the common applications of Alnico magnets.
Alnico magnets have high magnetic strength and excellent temperature stability and can be used at temperatures up to 1000°F (500°C), so they are very suitable for many types of industrial manufacturing applications. In addition, Alnico magnets are manufactured through a casting or sintering process, so they can be made into complex shapes that other magnet materials cannot achieve. They are commonly used in oil and gas, medical, aerospace, military and defense, industrial automation, automotive, and manufacturing.
1. Guitar Pick-Ups
2. Electrical Motors
4. Traveling Wave Tubes
5. Aerospace Components
6. Rotating Machinery
7. Sensors & Sensing Devices
8. Meters & Instruments
9. Harsh Environment Equipment
10. High-Temperature Handling Equipment
11. Heat Treatment Jigs
12. Medical Devices
13. Industrial Machinery
17. Industrial Automation Equipment
19. Military Radar Equipment
21. Security Systems
AlNiCo magnets can be produced in cylindrical, circular, rectangular, flat, tile, and horseshoe shapes.
Alnico magnets have the advantages of high remanence (up to 1.35T) and low-temperature coefficient. When the temperature coefficient is -0.02%℃, their maximum use temperature can reach about 520℃.
The intrinsic coercivity of AlNiCo is very low, usually less than 160 kA/m. Its demagnetization curve is nonlinear, and the recovery line of the AlNiCo permanent magnet does not coincide with the demagnetization curve.
According to their different production processes, AlNiCo magnets can be divided into sintered Alnico magnets and cast Alnico magnets.
Cast Alnico Magnets: Ingredients—->Smelting—->Casting—->Heat Treatment—->Performance Testing—->Machining—->Inspection—->Packaging
Sintered Alnico Magnets: Ingredients—->Powdering—->Pressing—->Sintering—->Heat Treatment—->Performance Testing—->Machining—->Inspection —->Packaging
Thank you for reading our article and we hope it can help you to have a better understanding of the common applications of Alnico magnets. If you want to know more about Alnico magnets or other types of magnets, we would like to advise you to visit Stanford Magnets for more information.
As a leading magnet supplier across the world, Stanford Magnets has been involved in R&D, manufacturing, and sales of magnets since the 1990s. It provides customers with high-quality permanent magnets like SmCo magnets, neodymium magnets, AlNiCo magnets, and ferrite magnets (ceramic magnets) at a very competitive price.