Samarium Cobalt Motor SmCo Ring Magnet
High Temp SmCo Samarium Cobalt Magnet Rings
572F Maximum Operating Temperature
Samarium cobalt magnet is mainly formed by the metal samarium, cobalt and some other rare earth elements of the permanent magnet.It has a high magnetic energy product, super low temperature coefficient,and the operating temperature can up to 300 ℃.At the same time, it has a strong corrosion resistance and oxidation resistance. Therefore, SmCo magnetic steel usually does not need to be electroplated, and is widely used in motors, meters, sensors, engines, radar and for other high-tech fields.
SmCo Ring Magnet Introduction:
Production: Powder metallurgy.
Composition: SmCo5/Sm2C017
Performance: High resistance demagnetization and good temperature physical properties and well resistance of corrosion
Excellent resistance on corrosion and oxidation
Breakable
Hardly to be demagnetized
Lower temperature coefficient
The proper working temperature is 100 Cto 350 C, but can also be used in bad condition
Good property
Sintering SmCo magnets are circularly made by strict powder metal technology and heat processing.
This kind of magnet conveys samariam for 35%, cobalt for 60%, element Fe and Cu. Through altering proportioning of
compositions and circulation of sintering and heating, we can make two materials_ 1: 5 and 2: 17. The difference lies in energy product, temperature coefficient and coercivity. The most common material, 2: 17, has better property and lower temperature coefficient, but it is more expensive and should be magnetized in high magnetic field.
Americans invented SmCo5 and SmCo17 in 1965 and 1972. This invention drives a high wave to study and explore new permanent magnetism, and promote the development of the materical rapidly. This material is produced by powder metallurgy, and its specialty is its magnetic stability, temperature resistance, and excellent resistance of corrosion. Its max magnetic energy prduct is 15~30MGOe which is 3~5 times to AlNiCo magnets. Its intrinsic coercivity is over 25kOe, and its highest working temperature is 350 C. SmCo magnet is very suitable for manufacture the products with high-performance like magnetic motors and other applied products requiring high working temperature. Strong Ring SmCo Magnets
SmCo Ring Magnet Process Flow:
Raw material—–Mixing—–Melting—–Power—–Pressing—–Sintering—-Magnetic —–Inspection—–Cutting and Grinding—–Inspection—–Packing and Shipping
BASIC PROPERTIES OF SAMARIUM COBALT MAGNETS
– the main element is samarium, cobalt, and some other trace elements
– high temperature sintering (Shaped by mold firstly, than sintered by high temperature)
– SmCo Magnet material is bright gray, usually be plated by nickel
– The maximum operating temperature is up to 250-300 ℃, it is suitable for many kinds of high-performance motor
– mainly divided into two types of 1: 5 （SmCo5） and （Sm2Co17）
– samarium cobalt magnets are mostly in round shape.The thickness is 1/8 of the diameter, and be magnetized through thickness
|
Materials
|
Grade
|
Remanent Flux Density
Br |
Coercivity
Hcb |
Intrinsic Coercivity
Hcj |
Max. Energy Product
(BH)max |
Curie Temperature
Tc |
Density
ρ |
Temperature Coefficient
△Bd/Bd |
Linear Expansion Coefficient
|
Webster
Hardness |
|
|
Unit
|
T
(kGs) |
kA/m
(kOe) |
kA/m
(kOe) |
kJ/m3
(MGOe) |
℃
|
g/cm3
|
%℃
|
C⊥
（1℃） |
C//
（1℃） |
Hv
|
|
|
1:5
SmCo5 |
HS-XGS18
|
0.8～0.9
(8.0～9.0) |
600～700
(7.5～8.8) |
≥1194
（≥15） |
143±16
（18±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
6×10-6
|
450～500
|
|
HS-XGS18G
|
0.8～0.9
(8.0～9.0) |
600～700
(7.5～8.8) |
≥1592
（≥20） |
143±16
（18±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
8×10-6
|
450～500
|
|
|
HS-XGS20
|
0.90～0.95
(9.0～9.5) |
676～740
(8.5～9.3) |
≥1194
（≥15） |
159±16
（20±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
6×10-6
|
450～500
|
|
|
HS-XGS20G
|
0.90～0.95
(9.0～9.5) |
676～740
(8.5～9.3) |
≥1592
（≥20） |
159±16
（20±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
8×10-6
|
450～500
|
|
|
HS-XGS22
|
0.94～1.00
(9.4～10.0) |
700～748
(8.8～9.4) |
≥1194
（≥15） |
175±16
（22±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
6×10-6
|
450～500
|
|
|
HS-XGS22G
|
0.94～1.00
(9.4～10.0) |
700～748
(8.8～9.4) |
≥1592
（≥20） |
175±16
（22±2） |
750～800
|
8.2～8.4
|
-0.05
|
13×10-6
|
6×10-6
|
450～500
|
|
|
2:17
Sm2Co17 |
HS-XGS26L
|
1.0～1.08
(10.0～10.8) |
477～577
(6.0～7.0) |
493～716
(6.2～9.0) |
206±16
（26±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
HS-XGS26H
|
1.0～1.08
(10.0～10.8) |
716～812
(9.0～10.2) |
≥1592
（≥20） |
206±16
（26±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS26U
|
1.0～1.08
(10.0～10.8) |
716～812
(9.0～10.2) |
≥1990
（≥25） |
206±16
（26±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS28L
|
1.06～1.10
(10.6～11.0) |
557～756
(7.0～9.5) |
636～955
(8.0～12.0) |
223±16
（28±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS28H
|
1.06～1.10
(10.6～11.0) |
756～836
(9.5～10.5) |
≥1592
（≥20） |
223±16
（28±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS28U
|
1.06～1.10
(10.6～11.0) |
756～836
(9.5～10.5) |
≥1990
（≥25） |
223±16
（28±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS30L
|
1.08～1.15
(10.8～11.5) |
557～796
(7.0～10.0) |
636～955
(8.0～12.0) |
229±16
（30±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS30U
|
1.08～1.12
(10.8～11.2) |
796～836
(10.0～10.5) |
≥1990
（≥25） |
239±16
（30±2） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
|
HS-XGS32
|
≥1.12
（≥11.2） |
≥557
（≥7.0） |
≥637
（≥7.0） |
≥239
（≥30） |
800～850
|
8.3～8.5
|
-0.03
|
11×10-6
|
8×10-6
|
500～600
|
|
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