Alnico magnets as they are known consist of alloys: Al(Aluminum), Ni(nickel), Co(cobalt), hence Al-Ni-Co, with additional alloy, iron, copper and titanium and other elements to enhance heat treatment in magnetic properties. Alnico magnets have widely rage of complex shape/sizes at an economical cost and good resistance to demagnetization. Most of them don’t need surface treatment because of the good corrosion resistance.
Shapes of AlNiCo magnet:
cone,ring,rectangle,abnormity and U-shaped.
AlNiCo of magnetizing:
thickness magnetizing,
diametrical magnetizing and so on.
Detection measurements:
demagnetization curve,hysteresis loop,
gauss(Gaussmeter),flux(Wb),aging experiment,
salt spray test,pressure cook test and so on.
Applications of AlNiCo magnets:
microphone, dashboard, magnetic switching,
communication control systems and so on.