FeCrCo – Iron Chromium Cobalt Permanent Magnet Material
The iron-chromium-cobalt permanent magnet material appeared in the early 1970s. It belongs to the age-hardening deformable permanent magnet material. Its alloy composition range is very wide. The basic composition is 20-33% Cr, 3-25% Co, and the rest is Fe.
The magnetic performance of FeCrCo is equivalent to that of AlNiCo, and it can be magnetized by plane multi-poles. At the same time, it has the advantage of being machinable. It is especially suitable for making thin permanent magnet components with small size and complex shape. It is often used in telephones, tachometers, micro Motors, miniature relays, speakers, etc.
Properties of FeCrCo magnets
The Curie temperature of iron-chromium-cobalt permanent magnet material is relatively high (Tc=about 680°C), the service temperature can reach 400°C, the reversible temperature coefficient is small, and the magnetic performance stability is good at high temperature. precision components.
FeCrCo is known as the transformer of permanent magnets, and it is easy to process metal, especially wire drawing and tube drawing, which is an advantage that other permanent magnet materials cannot compare with. Iron-chromium-cobalt alloys can be made into rods, strips, wires and pipes through cold and hot plastic deformation, and can also be cold punched, bent, drilled and variously cut to make various complex magnet components. The minimum wire diameter It can be as high as 0.05mm, and the thickness of the thinnest strip is only 0.1mm.
According to different manufacturing processes, FeCrCo can be divided into isotropic magnets and anisotropic magnets. The specific performance grades are as follows:
Anisotropic Ring FeCrCo Magnets
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