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Alnico 2 5 Cylinder Bar Magnet, Rod AlNiCo Magnet, High Grade Alnico Guitar Pickup bar cylinder magnets, aluminum nickel cobalt magnetic material, anisotropic AlNiCo, Industrial cast and sintered AlNiCo magnets China supplier
Alnico 2 5 Cylinder Bar Magnet Specifications
Shape: Bar, Rod, Cylinder, Cylindrical, Custom-made
Grade: A2, A5, A8
Size: According to customer’s requirements
Characteristics：High Remanence (up to 1.35t) and Low Temperature Coefficient.
AlNiCo magnet is ferroalloy with three main components, aluminum (Al), nickel (Ni) and cobalt (Co). It has high Curie temperature, generally is made by casting or sintering process. It has good corrosion resistance and better physical properties than ferrite. In the permanent magnet material, the cast AlNiCo permanent magnet has the minimum reversible temperature coefficient and the working temperature can be as high as 600℃ or above.
We can provide our customers with customized Aluminum, Nickel and Cobalt products, which are highly resistant to corrosion without coating.
Customized Shapes: Block, Cylinder/Disc, Ring/Tube, Segment/Tile/Arc/Sector, Special Shapes
It is mainly used in instrument and apparatus, motors, electroacoustic device, magnetic machinery, etc.
AlNiCo is comprised of aluminum, nickel, cobalt and iron with varying additions of other elements. There are two different manufacturering process for Alnico: Cast and Sintered. Cast alnico can be made into many sizes and shapes, whereas sintered alnico is usually restricted to smaller sizes.
AlNiCo magnet is composed of Aluminum, Nickel, Cobalt, and a few transition metals. They have excellent temperature stability, high residual induction, and relatively high energies. AlNiCo magnet may be manufactured in complex shapes, such as horseshoes, which is otherwise not possible with other magnet materials. They represent the most versatile magnets available.
Alnico magnet is manufactured through either casting or sintering processes. Cast magnet is manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles. The resulting magnet has a dark gray exterior appearance, and may have a rough surface. Machined surfaces have a shiny appearance similar to steel. Sintered magnet is manufactured by compacting fine Alnico powder in a press, and then sintering the compacted powder into a solid magnet.
Machining & Tolerance
Alnico magnet is hard and brittle, and prone to chipping and cracking. Special machining techniques must be used to machine this material. The Standard tolerances for Alnico magnet is +/- 0.1mm for ground dimensions, but sticter tolerances are possible if specially required.
The corrosion resistance of Alnico magnet is considered excellent , and no surface treatments are required. However, Alnico magnet is easily plated if specially required.
Sintered Alnico magnets are slightly weaker than Cast Alnico magnets in magnetic strength, but their sizes and dimensional tolerance are relatively smaller than cast ones.
Sintered Alnico magnets are more often used in micro/small motors, permanent magnet motor, relays and some small instruments. Sintered Alnico Block Square Magnets, Customize Casting Alnico Rod Magnets For Electric Guitar Pickup
Sintered Alnico magnets are made from powdered mixture of raw materials that are pressed into a die under tons of pressure. They are then sintered in a hydrogen atmosphere and cooled in an anisotropic or isotropic environment.