China AlNiCo Magnet, Cast AlNiCo Magnet, Sintered AlNiCo Magnet Manufaturer
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Products Permanent Magnet >> AlNiCo Magnet

AlNiCo Magnet

AlNiCo magneticThe AlNiCo materials (composed predominantly of Aluminum, Nickel, and Cobalt with minor amounts of other elements including Titanium and Copper) permit design latitudes providing high indications, high energies and relatively high coercivities. AlNiCo magnetic material are manufactured through either a casting or sintering process.  Specialized casting techniques are used to achieve the unique crystalline grain orientation found in the Alnico 5 and 8 grades. These anisotropic grades are designed to produce high magnetic output in a specified direction. 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 Alnicos. It combines high inductions with a high energy product of 5MGOe or more and is used extensively in rotating machinery, communications, meters and instruments, sensing devices and holding applications. The higher resistance to demagnetization (coercive force) of Alnico 8, cobalt content to 35%, allows this material to function well for short lengths or for length to diameter ratios of less than 2 to 1. Sintered Alnico materials offer slightly lower magnetic properties but better mechanical characteristics than the cast Alnico materials. Sintered Alnico magnets are most suitable in small sizes (less than 1 oz.). In this process, the desired mix of metal powders is pressed to shape and size in a die, then sintered at 2300?F in a hydrogen atmosphere. The sintering process is well suited to large volume production, and results in parts which are structurally stronger than cast magnets. Relatively close tolerances can be achieved without grinding

AlNiCo-magnet can be used for continuous duty applications where temperature extremes up to 550℃. AlNiCo is very hard and brittle. Machining or drilling can not therefore be accomplished by ordinary methods. Holes are usually cored in at the foundry. Magnets are cast or sintered as closely as possible to required sizes so that abrasive grinding to finished dimensions and tolerances is minimized.

AlNiCo Magnet Features:

1.Very hard and brittle.
2.Poor resistance to demagnetization;
3.Excellent stability over a wide range of temperature.

Application: Separators,sensors,holding devices,motors,relays,generators,controls,braking devices,security systems,energymeters,speedometers ,education etc.

AlNiCo Magnet Properties:

Type (BH)Max Br Hcb D a(Br) Tc Tw
KJ/cm3 MGOe mT Gs KA/m Oe g/cm3 ﹪/K
LN9 9.0 1.13 680 6800 30 380 6.9 -0.03 760 450
LN10 10.0 1.20 600 6000 40 500 6.9 -0.03 760 450
LNG12 12.4 1.55 720 7200 45 500 7.0 -0.03 810 450
LNG13 13.0 1.60 700 7000 48 600 7.0 -0.03 810 450
LNG34 34.0 4.30 1200 12000 48 600 7.3 -0.02 860 525
LNG37 37.0 4.65 1200 12000 48 600 7.3 -0.02 860 525
LNG40 40.0 5.00 1250 12500 48 600 7.3 -0.02 860 525
LNG44 44.0 5.50 1250 12500 52 650 7.3 -0.02 860 525
LNG52 52.0 6.50 1300 13000 56 700 7.3 -0.02 860 525
LNGT28 28.0 3.50 1000 10000 58 720 7.3 -0.025 860 550
LNGT36J 36.0 4.50 700 7000 140 1750 7.3 -0.025 860 550
LNGT32 32.0 4.0 800 8000 100 1250 7.3 -0.025 860 550
LNGT40 40.0 5.0 800 8000 110 1380 7.3 -0.025 860 550
LNGT60 60.0 7.50 900 9000 110 1380 7.3 -0.025 860 550
LNGT72 72.0 9.00 1050 10500 112 1400 7.3 -0.025 860 550

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