Description
AlNiCo Product Detail
Alnico magnets, composed of primarily aluminum, nickel, and cobalt,
were developed in the ***0's. This class of magnet remains a
preferred material because of it's excellent temperature stability,
high magnetic flux density, and resistance to corrosion. Alnico
magnets are manufactured through a casting or sintering process.
The casting process allows for the magnet to be manufactured into
intricate and complex shapes, which are not possible with other
magnetic materials.
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Alnico Magnets Overview
Alnico magnetic material is an alloy of aluminum-nickel-cobalt
which possesses an excellent temperature stability and high
residual induction. However, its low coercive force limits its
applications in many cases. Casting and sintering are two major
processes used to manufacture the Alnico magnets.
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Key Advantages
Excellent temperature stability
Strong corrosion resistance
The maximum working temperature is up to **0°c
Excellent capacity
High density and magnetic properties
Shorter production lead time
Temperature factor of Br is the smallest among all the permanent
magnets
Cast Alnico magnets can be produced in relatively complex
shapes
Tooling for cast Alnico magnets is relatively low, since sand molds
are generally used for the casting process.
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Applications:
1) Inner
magnetic voltmeter/ammeter, measuring instrument, avometer, flow
meter.
2) Magnetic sensors, polarized
relay, terperature and pressure controller.
3) Buzzer of mobile phone, hearing
aids, mini speaker
4) Lighter of automobile, odometer
of automobile and motorcycle, permanent motor, adsorptive
appliance
5) Widely applied in high stability
field as aviation, space flight and military technologhy
In addition, due to the good
corrosion resistance characteristic, non-coating is need for
surface protection.
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