Alnico permanent magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium. They can be either cast or sintered.
Very temperature stable, great for high heat applications
Maximum working temperature 975° - 1020° F
May be ground to size
Does not lend itself to conventional machining (hard and brittle)
High residual induction and energy product compared to ceramic material
Low coercive force compared to ceramic and rare earth materials (more subject to demagnetization)
Most common grades of alnico are 5 and 8
Features:
1) This Alnico magnet used in teaching
2) Size: According to customer's require.
3) Shape: Block, U shape
4) High residual induction working at high temperature
5) Excellent ability to withstand extreme temperatures stability
Packing:
Inner packing: small white box
Outer packing: Carton with OPP bag
Magnetic Characteristics of Cast AlNiCo:
Properties Grade | US standard MMPA Equivalent | Max Energy Product | Remanence | Coercive Force | Density | Temp Coefficient | Curie Temp | Max Working Temp | Remark | |
(BH)max | Br | Hcb | D | α Br | β Hcj | Tc | Tw | |||
KJ/m3(MGOe) | mT(KGs) | KA/m(Oe) | g/cm3 | %/ ℃ | %/ ℃ | ℃ | ℃ | |||
LN9 | AlNiCo3 | 9.0(1.13) | 680(6.8) | 30(380) | 6.9 | -0.03 | -0.02 | 810 | 450 | Isotropic |
LN10 | AlNiCo3 | 10.0(1.20) | 600(6.0) | 40(450) | 6.9 | -0.03 | -0.02 | 810 | 450 | |
LNG12 | AlNiCo2 | 12.4(1.55) | 720(7.2) | 45(500) | 7.0 | -0.03 | +0.02 | 810 | 450 | |
LNG13 | AlNiCo2 | 12.8(1.60) | 700(7.0) | 48(600 | 7.0 | -0.03 | +0.02 | 810 | 450 | |
LNGT18 | AlNiCo8 | 18.0(2.2) | 580(5.8) | 100(1250) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
LNG37 | AlNiCo5 | 37.0(4.65) | 1200(12.0) | 48(600) | 7.3 | -0.02 | +0.02 | 850 | 525 | Anisotropic |
LNG40 | AlNiCo5 | 40.0(5.0) | 1250(12.5) | 48(600) | 7.3 | -0.02 | +0.02 | 850 | 525 | |
LNG44 | AlNiCo5 | 44.0(5.5) | 1250(12.5) | 52(650) | 7.3 | -0.02 | +0.02 | 850 | 525 | |
LNG52 | AlNiCo5DG | 52.0(6.5) | 1300(13.0) | 56(700) | 7.3 | -0.02 | +0.02 | 850 | 525 | |
LNG60 | AlNiCo5-7 | 60.0(7.5) | 1350(13.5) | 59(740) | 7.3 | -0.02 | +0.02 | 850 | 525 | |
LNGT28 | AlNiCo6 | 28.0(3.5) | 1080(10.8) | 58(720) | 7.3 | -0.02 | +0.03 | 850 | 525 | |
LNGT36J | AlNiCo8H | 36.0(4.5) | 700(7.0) | 140(1750) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
LNGT32 | AlNiCo8 | 32.0(4.0) | 800(8.0) | 100(1250) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
LNGT40 | AlNiCo8 | 40.0(5.0) | 800(8.0) | 110(1380) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
LNGT60 | AlNiCo9 | 60.0(7.5) | 900(9.0) | 110(1380) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
LNGT72 | AlNiCo9 | 72.0(9.0) | 1050(10.5) | 112(1400) | 7.3 | -0.025 | +0.02 | 860 | 550 | |
Alnico application places:
Alnico products are mainly applied in auto parts, instruments and meters, electronic, electrical, teaching as well as aerospace, military and other fields has low temperature coefficient, high temperature resistant, resistant to moisture, it is not easy oxidation and the working stability is good wait for an advantage.
Process flow:
casting: raw material---->vacuum melting ---->casting---->heating treating---->performance test---->last inspection----> packing
Sintering: raw material---->milling---->pressing--->Sintering-->heating treating---->performance test---->last inspection----> packing
Pictures of U Shape Alnico Magnet Education magnetic / Alnico teaching U shape magnet:
