Magnetic field strength H(min) of sintered SmCo magnet（KA/m）
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Materials
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SmCo1：5
|
SmCo1：5
|
SmCo2：17
|
SmCo2：17
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Ce(co,Fe,cu)5
|
|
Hcj Scope
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HCj≥1194
|
HCj≤1194
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HCj≥1433
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HCj≤1273
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HCj≤800
|
|
Magnetic field strength H(min)
|
3500
|
2400
|
5000
|
3500
|
1600
|
Beneficial advices
（1）Sintered SoCo permanent magnetic materials have the character of brittleness, lacking of the ductility. So it isn’t suitable for using as structural part when being designed. The physical specifications of SmCo(1:5) is better than SmCo(2:17)’s because SmCo(1:5) is easy to machine while SmCo(2:17) is more brittle. SmCo permanent magnet magnetized must be picked up carefully during the process of assembling, avoiding ironware to prevent absorbing mutually and the magnets broke off, or two slices of magnetic irons cause damage resulted in absorbing together, besides, it will even cause body-hurt
（2）Sintered SoCo permanent magnetic materials would make some slight collision in the process of producing, packing and delivering, so there may be have some visual flaw owing to a bit small horn. However, it wouldn’t damage its magnetic specifications, its stability and its anti-degenerated magnetic ability as long as its flaw doesn’t affect normal construction or functions.
Agglutinates generally the samarium cobalt 2: 17 most lowers needs the saturated magnetizing field is material itself HCj value 2-3 times
Characteristic comparisons of permanent magnetic material
|
Materials
|
(BH)max
|
iHc
|
Br Tc
|
(Working temperature)max
|
Anti-causticity
|
|
SmCo1：5
|
16-25
|
15-25
|
-0.05
|
200-250
|
Good
|
|
SmCo2：17
|
22-30
|
6-30
|
-0.03
|
300-350
|
Good
|
|
NdFeB
|
26-52
|
12-30
|
-0.11
|
80-200
|
Bad
|
|
Ferrite magnet
|
3-4.5
|
3-4.5
|
-0.19
|
200-300
|
Good
|
|
AINiCo
|
5-10
|
1-1.8
|
-0.03
|
450-500
|
Excellent
|
