AlNiCo Rod Magnets (Aluminium Nickel Cobalt)
Alnico is an alloy produced by mixing aluminum, nickel and cobalt with certain addition of other metals like copper, iron and titanium. Bar Alnico Magnets offer excellent temperature stability, high residual induction, and relatively high energies. Alnico cylinders are deployed in a wide variety of sensitive and highly accurate industrial meters, valves and gauges in industry and manufacturing.
Alnico rod magnet
Bar Alnico Magnets offer excellent temperature stability, high residual induction, and relatively high energies. Alnico cylinders are deployed in a wide variety of sensitive and highly accurate industrial meters, valves and gauges in industry and manufacturing. These gauges measure the volume of liquid, powder, grain and mineral flows as well as the temperature and pressure of the goods and the vessels housing them. Sensors controlled with the assistance of these alnico magnets can help detect stresses in dam walls, grain silos and the hulls of cargo ships. Alnico magnets also find their way into instruments that produce the sound of music and other audio effects.
These magnets, in conjunction with other magnets and magnetic assemblies are used to regulate, modify and or amplify sound or audio recordings. Max operating temperature 450 ° C, Raw magnet without paint, Fastening through glue, Axial magnetised through Length, AlNiCo 500.
As one of the members of magnets family, Alnico remains the workhorse of the permanent magnet industry and can be relied upon to deliver impressive flux density at an economical price. Excellent temperature stability, high residual induction, and relatively high energies characterize Alnico materials, composed primarily of alloy of Aluminum, Nickel, and Cobalt. They are manufactured through either a casting or sintering process. Cast magnets may be manufactured in complex shaped, such as horseshoe.
More About Alnico Magnets
Alnico magnets are composed of aluminum, nickel and cobalt. They offer a very strong magnetic field, second only to rare earth magnets, and are commonly available in horseshoe, cylinder, or rod shapes.
The benefits of this unique material include:
- Flexibility in selecting the shape due to casting process
- Can be magnetized in one or all directions
- High energy
- Surface protection coating not required
- Temperature stability
Ideal for High Temperature Applications
Alnico is an extremely hard material that performs well in high temperature situations, offering a service limit of 550 degrees Celsius.
Types of Alnico Magnets
On the basis of manufacturing process and application alnico can be grouped into following types:
- Cast Alnico
- Sintered Alnico
- Bar Alnico
Alnico magnets can be fabricated into many shapes and types:
- Alnico horseshoe magnets
- AlNiCo rod magnets uncoated
- Alnico's are the strong magnets which can produce strong magnetic fields.
- Excellent resistance to corrosion
- They have superior thermal stability
- These magnets have some of the highest curie points of any magnetic material ranging around 800oC
- Some type of Alnico's are isotropic
- They have high magnetic flux density
Alnico magnets have applications in the following areas:
- Electric motors
- Electric guitar pickups
- Cow magnets
- Automotive and electronic sensors
- Hall effect sensors
- Reed switches
- TWT aomplifiers
Casting or sintering process is applied for making alnico magnets. The first step involves the pouring of molten metal alloys into moulds. Later it is passed through various heat cycles. The resultant magnets have rough surface which after machining gives a glossy look. Sintered magnets are produced by compacting fine alnico powder in a press, and then sintering the compacted powder into a solid magnet. Alnico magnets can only be magnetized only in the field having magnetizing fields of about 3 kOe. Since these magnets have low coercivity they, must be protected from the adverse repelling fields as this could partially demagnetize the magnets.
After the tolerance magnetizing is effected. As alnico magnets are brittle, they must be protected from hard blows and handled with care. It should be magnetized in a proper magnetic field and must be prevented from the repelling fields as it is prone to demagnetization.
Who supplies high quality Alnico magnets?
Magnosphere produces magnets at great prices, produced and delivered on time for all areas of industry, automotive, aerospace, electronics as well as in the design sector, trade fair construction, offices and for the home.
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