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磁铁选择指南 Selection Guide |
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成本 Costs | Ferrite | NdFeB | AlNiCo | SmCo | ||||||
磁能积 Energy Product | Ferrite | AlNiCo | SmCo | NdFeB | ||||||
工作温度 Operating Temperature | NdFeB | Ferrite | SmCo | AlNiCo | ||||||
抗侵蚀值 Corrosion Resistance | NdFeB | SmCo | AlNiCo | Ferrite | ||||||
抗消磁值 Resistance to Demagnetization | AlNiCo | Ferrite | NdFeB | SmCo | ||||||
机械强度 Mechanical Strength | Ferrite | SmCo | NdFeB | AlNiCo | ||||||
温度系数 Temperature Coefficient | AlNiCo | SmCo | NdFeB | Ferrite |
材料等级 Materlal Grades | 剩磁值 Remanence | 矫顽力 Coercivity | 最大磁能积 Energy product | 最高工作温度 Operating Temperature max | ||
Br | HcB | HcJ | IBHI max | |||
Mt | kA/m | kJ/m3 | °C | |||
钕铁硼 NdFeB | N30 | 1105 | 836 | 955 | 235 | 80 |
N30H | 1105 | 836 | 1274 | 235 | 120 | |
N30SH | 1100 | 836 | 1512 | 239 | 150 | |
N33EH | 1185 | 828 | 955 | 275 | 180 | |
N35 | 1185 | 828 | 955 | 275 | 80 | |
N35H | 1190 | 828 | 1274 | 275 | 120 | |
N35SH | 1190 | 828 | 1512 | 275 | 150 | |
N40SH | 1260 | 844 | 1512 | 314 | 150 | |
N45 | 1350 | 840 | 955 | 354 | 80 | |
钐钴 SmCo5 Sm2Co17 | S20 | 875 | 617 | 1194 | 159 | 250 |
S24H | 975 | 724 | 1433 | 183 | 300 | |
S28H | 1065 | 724 | 1433 | 215 | 300 | |
铝镍钴 AlNiCo | A500 | 1281 | 50 | 52 | 40 | 500 |
铁氧体 Ferrite | Y10 | 215 | 143 | 203 | 8 | 250 |
Y30BH | 390 | 229 | 231 | 29 | 300 | |
Y35 | 410 | 183 | 167 | 31 | 300 |