AlNiCo Magnet

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Alnico magnets

AlNiCo magnets (Cast AlNiCo Magnets - Sintered AlNiCo Magnets), are made up of a composite of aluminum, nickel and cobalt with small amounts of other elements, have good temperature stability, good resistance to demagnetization, high residual induction, and relatively high energies. By strength, they are much weaker than NdFeB magnets, SmCo magnets and Ferrite magnets.
Alnico magnets are produced by two typical methods, casting or sintering. Casting delivers higher energy products and allows for the design of intricate shapes. Sintering is usually restricted to smaller sizes and offers slightly lower magnetic properties, but has tighter dimensional tolerances due to its processing.
AlNiCo magnets can be produced with either isotropic or anisotropic properties. Alnico 5 and Alnico 8 are anisotropic and exhibit a preferred direction of orientation, Magnetic orientation should be specified on your drawing when you send an order to us. Cast Alnico 5 is the most commonly used of all the cast Alnico¡¯s. It combines high indications with a high energy product of 5 MGOe or more and is used extensively in rotation machinery, communications, meters and instruments, sensing devices and holding applications.
AlNiCo magnets have wide range of working temperatures, up to 550oC. They have experienced renewed interest in recent years in such temperature-sensitive applications as hall-effect and MR-based automotive and electronic sensors, in addition to the traditional magnetron, TWT amplifiers, actuators, motors and instruments applications that have long relied upon AlNiCo.

Cast AlNiCo magnets

Sintered AlNiCo magnets

The Characteristics of Alnico Magnet:
*Small changes in magnetic properties to temperature effects
*Maximum working temperature can be as high as 450oC~550oC.
*Low coercive force.
*Strong corrosion resistance capability, no coating needed for surface protection.
• Suitable for small volume magnets with complex shape
• Compact crystal, high intensity
• Regular shape, precision size
• Even elements, stable performance
• Suitable for compound magnet
• Excellent temperature stability temp. coefficient of Br is the smallest among all of the other
permanent magnets.

Casting Alnico magnets are suitable for being used in instrument, meter, micro-motor, electro-acoustic device, microwave device and magnetic drive unit etc.

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AlNiCo Magnet Related Keywords : AlNiCo magnets ,
Other related category :NdFeB Magnet,SmCo Magnet,Ferrite Magnet,Magnetic Assemblies,