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Bonded Strong Samarium Cobalt Magnet
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Rainbow Magnet Ltd.
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Product description
Bonded Smco magnet have high accuracy. Not only have vary shape specifications, but also have strong corrosion resistance, and high temperature
SmCO magnets:
Samarium cobalt magnets are composed of samarium, cobalt and iron. These rare earth magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.
According the composition, we divide two of SMCO: Sm2CO17 and SmCo5
According the process, we divide to sintered Smco and bonded Smco
Bonded SmCo
Features:
Bonded Smco magnet have high accuracy. Not only have vary shape
Specifications, but also have strong corrosion resistance, and high temperature
Stability.The surface is without treatment;
Applications:
²Computers and office automation: HDD, CD, DVD-ROM
²spindle motor,
²printers,
²fax machines,
²stepper motors
²the automotive sector:
²the permanent magnet starter motor,
²the direction of power motor,
²automatic window motor,
²seat adjustment motor,
²speed sensors,
²household and electrical appliances:
²watches,
²air conditioning,
²camera,
²camera drive motor.
Bonded SmCo magnetic energy parameters
Br |
Hcb |
Hcj |
(BH)max |
α( B r ) |
Remark |
|
Grade |
mT |
KA/m |
KA/m |
KJ/m3 |
%/ ℃ |
|
Gs |
KOe |
KOe |
MGOe |
|||
SCZ-4T |
380-420 |
200-280 |
640-1030 |
28-36 |
-0.03 |
Isotropic |
3.8-4.2 |
2.5-3.5 |
8.0-13.0 |
3.5-4.5 |
|||
SCZ-5T |
410-540 |
265-360 |
640-1200 |
36-44 |
-0.03 |
Isotropic |
4.1-5.4 |
3.3-4.5 |
8.0-15.0 |
4.5-5.5 |
|||
SCZ-9 |
610-660 |
415-480 |
640-1200 |
68-76 |
-0.03 |
Anisotropic |
6.1-6.6 |
5.2-6.0 |
9.0-15.0 |
8.5-9.5 |
|||
SCZ-11 |
640-720 |
430-510 |
640-1200 |
76-88 |
-0.03 |
Anisotropic |
6.4-7.2 |
5.4-6.4.4 |
8.0-15.0 |
9.5-11.0 |
Compare of bonded permanent magnetic magnet
material |
remark |
Br/T |
Hcb
/kA.m-1
|
Hcj
/kA.m-1
|
(BH)m
/kA.m-3
|
α/Br
℃
|
β/Hcj
℃
|
ρ
/g.cm-3
|
SmCo5 |
Anisotropic |
0.67 |
796 |
796 |
79.6 |
-0.04 |
5.7 |
|
Sm2Co17 |
Anisotropic |
0.867 |
557 |
875 |
135.0 |
-0.04 |
7.1 |
|
NdFeB |
Isotropic |
0.69-0.74 |
360-480 |
640-1080 |
64-80 |
-0.1 |
-0.4 |
6.0 |
NdFeB |
Isotropic |
0.664 |
437 |
716 |
77 |
-0.09 |
-0.4 |
|
NdFeB |
Anisotropic |
0.854 |
577 |
927 |
133 |
-0.09 |
||
NdFeB |
Anisotropic |
1.015 |
617 |
848 |
178 |
-0.09 |
Type |
composition |
Magnetic properties |
||||
Br/T |
Hc
/(Ka/m)
|
(BH)m/
(kJ/m3)
|
Tc/℃ |
Density
g/cm-3
|
||
Bonded smco |
Sm(Co0.67Fe0.22Cu0.1Zr0.07Ti0.01)7.1 |
1.0-1.07 |
800-1400 |
160-204 |
810 |
7.4 |
1:5,SmCo |
62%-63%Co,38%-37%Sm |
0.9-1.0 |
1100-1540 |
117-179 |
720 |
8.1 |
2:17,SmCo |
Sm(Co0.69Fe0.2Cu0.1Zr0.01)7.2 |
1.0-1.3 |
500-600 |
230-240 |
800 |
8.2 |
AlNiCo 5 |
8%-12%Al,15%-22%Ni
5%-24%Co,3%-6%Cu.
Balance Fe
|
0.7-1.32 |
40-60 |
9-56 |
890 |
7.3 |
AlNiCo8 |
7%-8%Al,14%-15%Ni
34%-36%Co,5%-8%Ti,
3%-4%Cu,Balance Fe
|
0.3-0.44 |
250-350 |
25-36 |
450 |
7.3 |
Sinter NdFeB |
Nd13.5(Fe,M)bananceB6.1-7.0 |
1.1-1.4 |
800-2400 |
240-400 |
310-510 |
7.4-7.6 |
|
Bonded
NdFeB
|
Nd4-13(Fe,M)bananceB6-12 |
0.6-1.1 |
800-2100 |
56-160 |
310 |
5.3-6.0 |
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