What is Alnico Magnet
Aluminum Nickel Cobalt (AlNiCo) is the first permanent magnet material developed for a large number of industrial applications. It is a permanent magnet alloy composed of aluminum, nickel, cobalt, iron and other trace metal elements. Its Curie temperature is the current permanent magnet The highest among the materials; its characteristic is that the advantages of AlNiCo magnets are high remanence (up to 1.35T) and low temperature coefficient. When the temperature coefficient is -0.02%/℃, the maximum operating temperature can reach about 520℃. The disadvantage is that the coercivity is very low (usually less than 160kA/m), and the demagnetization curve is nonlinear, so AlNiCo magnets are easily magnetized and demagnetized. According to different production processes, it can be divided into powder sintered aluminum nickel cobalt (Sintered
AlNiCo) and Cast AlNiCo (Cast AlNiCo). According to material properties, it can be divided into isotropic and anisotropic. Cast AlNiCo is produced by smelting, and the processing cost is relatively low. It is suitable for the production of products with simple shapes, large sizes and large specifications; Sintered AlNiCo is produced by powder metallurgy, which can be processed into different sizes and shapes, suitable for The production of small size products with small size and light weight has lower density than cast ones, but better machinability.
Iron, nickel, cobalt and other metals.
Magnets are composed of atoms such as iron, cobalt, nickel, etc. The internal structure of the atoms is special and they have a magnetic moment. Magnets can generate magnetic fields and have the property of attracting ferromagnetic materials such as iron, nickel, cobalt and other metals.
Magnet types: shape magnets: square magnets, tile magnets, special-shaped magnets, cylindrical magnets, ring magnets, disc magnets, bar magnets, magnetic frame magnets, attribute magnets: samarium cobalt magnets, neodymium iron boron magnets ( Powerful magnets), ferrite magnets, alnico magnets, iron chromium cobalt magnets, industry type magnets: magnetic components, motor magnets, rubber magnets, plastic magnets, etc.
Magnets are divided into permanent magnets and soft magnets. Permanent magnets are coupled with strong magnetism, so that the spin and electronic angular momentum of the magnetic substance are arranged in a fixed direction, while soft magnetism is coupled with electricity. (It is also a method of adding magnetic force) When the current is removed, the soft iron will gradually lose its magnetism.
