Alnico magnets are made from aluminum, nickel, cobalt, copper, iron, titanium and other element. There is cast or sintered Alnico magnet due to different process craft.
Picture shows the disc AlNiCo magnets
It uses the powder metallurgy method to make, easy to process small size and easy to control the tolerance, suitable for complex shape, light, thin, small products.
Picture shows the disc AlNiCo magnets
It uses the powder metallurgy method to make, easy to process small size and easy to control the tolerance, suitable for complex shape, light, thin, small products.
but the magnetic properties is lower than the cast AlNiCo,
The disc AlNiCo magnets products are widely used in various instruments and other applications.
Shortcoming: the coercivity is very low (typically less than 140kA / m), demagnetization curve is nonlinear. Alnico magnets easily magnetized, also easy to demagnetization.
sintered disc AlNiCo magnets demagnetization curve
Applications:
sintered disc AlNiCo magnets demagnetization curve
Applications:
instrumentation,
communications,
magnetic switches
variety of sensors.
Controls
Generators
Receivers
Telephones
Microphones
Bell ringers
Loudspeakers
other fields
disc AlNiCo magnets
disc AlNiCo magnets
Sintered AlNiCo magnetic energy parameters
Br | Hcj | (BH)max | Tc | Tw | a(Br) | Remark | |
Grade | mT | kA/m | kJ/m3 | ℃ | ℃ | %/℃ | |
Gs | Oe | MGOe | |||||
FLN8 | 500/5000 | 40/500 | 9/1.13 | 760 | 450 | -0.022 | Isotropic |
FLNG12 | 700/7000 | 48/600 | 12.4/1.55 | 810 | 450 | -0.014 | Isotropic |
FLNG34 | 1200/12000 | 48/600 | 34/4.25 | 890 | 450 | -0.016 | Anisotropic |
FLNG37 | 1250/12500 | 48/600 | 37/4.62 | 890 | 450 | -0.016 | Anisotropic |
FLNGT18 | 600/6000 | 90/1130 | 18/2.20 | 860 | 450 | -0.02 | Isotropic |
FLNGT28 | 1050/10500 | 60/600 | 28/3.50 | 850 | 450 | -0.02 | Anisotropic |
FLNGT38 | 800/8000 | 120/1500 | 38/4.75 | 850 | 450 | -0.02 | Anisotropic |
FLNGT42 | 880/8800 | 120/1500 | 42/5.25 | 820 | 450 | -0.02 | Anisotropic |
FLNGT33J | 700/7000 | 140/1750 | 33/4.13 | 850 | 450 | -0.025 | Anisotropic |