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钐钴磁铁 钐钴磁钢 |
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钐钴磁铁分为烧结1:5,2:17钐钴磁性材料,又称钐钴磁钢、钐钴永磁体、钐钴永久磁铁、稀土钴永磁等。是由钐、钴和其它金属稀土材料经配比,溶炼成合金,经粉碎、压型、烧结后制成的一种磁性材料,具有高磁能积、极低的温度系数,最高工作温度可达350℃,负温不限,在工作温度180℃以上时,其最大磁能积及温度稳定性和化学稳定性均超过钕铁硼永磁材料。钐钴磁铁具有很强的抗腐蚀和抗氧化性,所以被广泛应用在航空航天、国防军工、微波器件、通讯、医疗设备、仪器仪表、各种磁性传动装置、传感器、磁处理器、电机、磁力起重机等。
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钐钴磁铁部分机械物理特性
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参数名称 |
单位 |
钐钴 1 : 5 |
钐钴 2 : 17 |
密度 D |
G/Cm 3 |
8.3 |
8.4 |
居里温度 Tc |
K |
1000 |
1100 |
维氏硬度 Hv |
Mpa |
450-500 |
550-600 |
压缩强度 |
Mpa |
1000 |
800 |
电阻率 ρ |
Ω .Cm |
5~6x10-5 |
8~-x10-5 |
弯曲强度 |
Mpa |
150-180 |
130-150 |
拉伸 |
Mpa |
400 |
350 |
热膨胀系数 α |
(10-6/ o C) |
10 |
10 |
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烧结钐钴永磁体系列性能参数 |
材料 |
牌号 |
磁能积 |
剩磁 |
矫顽力 |
内禀矫顽力 |
密度 |
剩磁温度系数 |
居里温度 |
工作温度 |
Material |
Grade |
Energy Product(BH)max |
Residual Induction Br(min) |
Coercive Force Hcb(min) |
Intrinsic Coercive Force Hcj(min) |
Density |
Rev.Temp Coeff α (Br) |
Curie Temp TC |
Max Working Temp Tw |
KJ/m 3 |
MGsOe |
T |
KGs |
KA/m |
KOe |
KA/m |
KOe |
g/cm 3 |
%/ ℃ |
℃ |
℃ |
SmCo5 和 Sm(Pr)Co |
XG18 |
127~159 |
16~20 |
0.82~0.92 |
8.2~9.2 |
639~756 |
8.0~9.5 |
1194~1751 |
15.0~22.0 |
8.3 |
-0.04 |
≥740 |
250 |
XG20 |
143~175 |
18~22 |
0.87~0.95 |
8.7~9.5 |
639~756 |
8.0~9.5 |
1194~1751 |
15.0~22.0 |
XG22 |
159~191 |
20~24 |
0.93~1.0 |
9.3~10.0 |
660~772 |
8.3~9.7 |
1194~1751 |
15.0~22.0 |
XG24 |
175~207 |
22~26 |
0.96~1.04 |
9.6~10.4 |
660~780 |
8.3~9.8 |
1194~1751 |
15.0~22.0 |
Sm2Co17 |
XGS24M |
175~207 |
22~26 |
0.96~1.04 |
9.6~10.4 |
318~772 |
4.0~9.7 |
398~955 |
5.0~12.0 |
8.4 |
-0.03 |
≥850 |
350 |
XGS24 |
175~207 |
22~26 |
0.96~1.04 |
9.6~10.4 |
660~780 |
8.3~9.8 |
≥1194 |
≥15.0 |
XGS24H |
175~207 |
22~26 |
0.96~1.04 |
9.6~10.4 |
660~780 |
8.3~9.8 |
≥ 1592 |
≥ 20 .0 |
XGS26M |
191~223 |
25~28 |
1.0~1.07 |
10.0~10.7 |
318~796 |
4.0~10.0 |
398~955 |
5.0~12.0 |
XGS26 |
191~223 |
25~28 |
1.0~1.07 |
10.0~10.7 |
677~820 |
8.5~10.3 |
≥1194 |
≥15.0 |
XGS26H |
191~223 |
25~28 |
1.0~1.07 |
10.0~10.7 |
677~820 |
8.5~10.3 |
≥ 1592 |
≥ 20 .0 |
XGS28M |
207~239 |
26~30 |
1.04~1.10 |
10.4~11.0 |
318~796 |
4.0~10.0 |
398~955 |
5.0~12.0 |
XGS28 |
207~239 |
26~30 |
1.04~1.10 |
10.4~11.0 |
677~820 |
8.5~10.3 |
≥1194 |
≥15.0 |
XGS28H |
207~239 |
26~30 |
1.04~1.10 |
10.4~11.0 |
677~820 |
8.5~10.3 |
≥ 1592 |
≥ 20 .0 |
XGS30M |
223~247 |
28~31 |
1.07~1.12 |
10.7~11.2 |
318~796 |
4.0~10.0 |
398~955 |
5.0~12.0 |
XGS30 |
223~247 |
28~31 |
1.07~1.12 |
10.7~11.2 |
677~820 |
8.5~10.3 |
≥ 1194 |
≥ 15.0 |
XGS32M |
238~262 |
29~32 |
1.09~1.15 |
10.9~11.5 |
318~796 |
4.0~10.0 |
398~955 |
5.0~12.0 |
XGS32 |
238~262 |
29~32 |
1.09~1.15 |
10.9~11.5 |
677~820 |
8.5~10.3 |
≥955 |
≥ 12.0 |
低温度系数 Low Temp Coef Sm2Co17 |
XGS22LT |
159~191 |
20~24 |
0.93~1.0 |
9.3~10.0 |
677~756 |
8.5~9.5 |
≥ 1194 |
≥ 15.0 |
8.4 |
-0.01 |
≥850 |
350 |
XGS24LT |
175~207 |
22~26 |
0.96~1.04 |
9.6~10.4 |
677~756 |
8.5~9.5 |
≥ 1194 |
≥ 15.0 |
XGS26LT |
191~223 |
25~28 |
1.0~1.07 |
10.0~10.7 |
677~812 |
8.5~10.2 |
≥1433 |
≥18.0 |
8.4 |
-0.02 |
≥850 |
350 |
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