AlNiCo Magnets

Category: AlNiCo magnets/metal perpament magnets

Advantages: high magnetic energy, good temperature stability

Disadvantages: very low coercive force,easy to be demagnetized, magnetic circuit design can not use thin disc magnets, and must be assemblied first then overall magnetized

AlNiCo magnet is the earliest developed permanent magnetic material, it is an alloy of Al, Ni, Co, Fe and another rare metal element. AlNiCo permanent magnets birthed in 30 years of 20 Century, its magnetic property is best in the years, so it was most widely used in permanent magnetic motors. But that application in motors was replaced step by step when ferrite permanent magnets and rare earth magnets produced. And the proportion of AlNiCo application for motors went down. For AlNiCo magnets, the ability of corrosion resistant is good, surface treatment is not needed for it. It usually made into cylinder china alnico magnets or block AlNiCo magnets. The advantages of alnico magnets china are high remanence (maximum up to 1.35T) and low-temperature coefficient(-0.02%/℃), maximum working temperature is around 520℃, the magnetic properties change caused by temperature change is very small. The disadvantages of AlNiCo are low coercivity (normally lower than 160KA/m), and the demagnetize curve is not linear, it is easy to be magnetized and also easy to be demagnetized.

According to the different production methods, it classified as sintered AlNiCo magnets and cast alnico magnets for sale. Cast AlNiCo can be machined into different shapes and sizes, for all kinds of permanent magnets, cast AlNiCo magnets have the lowest Temp.Coefficient, its working temperature can be up to 600 degrees. Cast AlNiCo magnets are used for kinds of instruments and meters, auto parts,electric-acoustic, teaching field etc.

Compared with cast AlNiCo magnets, sintered AlNiCo magnets suit for making complex shapes and smaller sizes,the size tolerance for sintered AlNiCo magnets is smaller and better than cast AlNiCo magnets. For sintered AlNiCo magnets, the process is simple and it can be pressed into needed size directly.The property of sintered AlNiCo magnets is lower than cast AlNiCo magnets, but sintered AlNiCo magnets more suitable for machine.Sintered AlNiCo magnets are wide used on instruments and meters, comm unicate,magneto-electricity switch, and kinds of transducers.

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

Meank is a professional and reliable holding magnets manufacturer, we provide plastic coated disc magnets, cylinder magnets for sale. Want to know more, please contact us for more information.

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