AlNiCo Magnets-Ceramic Magnets-Strong Magnets

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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.

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.


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.

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.