What is a metal permanent magnet material? How many kinds are there?
Definition of metal permanent magnet material: Metal permanent magnet material is a permanent magnet material with iron and iron group elements (such as nickel, cobalt, etc.) as the main components. Its main characteristics are high Curie temperature, high residual magnetic induction and high saturation magnetic induction, and no rare earth elements.
Metal permanent magnet materials mainly include aluminum-nickel-cobalt permanent magnet alloy (Al-NiCo), iron-chromium-cobalt permanent magnet alloy (Fe-Cr-Co) and platinum-cobalt alloy (PtCO), etc. The development of metal permanent magnet materials began At the beginning of the 20th century, there were many applications from the 1930s to the 1960s. With the discovery of high-performance rare earth permanent magnetic materials in the early 1970s, the application of metal permanent magnetic materials has been greatly impacted, and they have been gradually replaced by new permanent magnetic materials. Currently, they are only used in niche special fields.
Aluminum nickel cobalt series iron chromium cobalt series platinum cobalt series metal permanent magnet materials introduction
Aluminum nickel cobalt series iron chromium cobalt series platinum cobalt series metal permanent magnet materials introduction
At present, metal permanent magnet materials have not completely withdrawn from the market, and there are few magnet manufacturers that produce them. The production scale has been completely unable to compete with ferrite permanent magnets and rare earth magnets.
