| 材料牌号 |
Y20 |
Y25 |
Y30 |
Y33H |
| 组成
Composition |
|
|
|
|
| 剩余磁通密度Br
Residual Flux Density
|
(mT) |
≥360 |
≥380 |
≥390 |
≥400 |
| [KG] |
≥3.6 |
≥3.8 |
≥3.9 |
≥4.1 |
|
磁感应矫顽力 Hcb
Coercive Force |
(KA/m] |
≥135 |
≥144 |
≥184 |
≥208 |
| [KOe] |
≥1.7 |
≥1.80 |
≥2.30 |
≥2.6 |
| 内禀矫顽力
Hcj
Intrinsic Coercive
Force
|
(KA/m) |
≥140 |
≥146 |
≥188 |
≥212 |
| [KOe] |
≥1.76 |
≥1.83 |
≥2.35 |
≥2.66 |
|
最大磁能积(BH)max
Max.EnergyProduct |
[kj/m3] |
≥20.0 |
≥24.0 |
≥27.6 |
≥30.4 |
| [MGOe] |
≥2.5 |
≥3.0 |
≥3.4 |
≥3.8 |
| 相对回复磁导率
urec
Relative Permeability
|
1.05~1.1 |
1.05~1.1 |
1.05~1.1 |
1.05~1.1 |
|
剩磁温度系数(%/K)
Temperature Coefficient |
-0.18 |
-0.18 |
-0.18 |
-0.18 |
| △Br/Br/△T[%℃]
|
-0.18 |
-0.18 |
-0.18 |
-0.18 |
|
居里温度(K)
Curie Temperature |
733 |
733 |
733 |
733 |
|
Tc(℃) |
460 |
460 |
460 |
460 |
|
热膨胀系数△L/L/△T
Thermal Coeffient
of Expansion |
C//*(1/k)[1/℃] |
(9~9.5)×10-6 |
(9~9.5)×10-6 |
(9~9.5)×10-6 |
(9~9.5)×10-6 |
| C1*(1/k)[1/℃] |
10×10-6 |
10×10-6 |
10×10-6 |
10×10-6 |
| 矫顽力温度系数
Coercive Force
Coefficient of
Temperature |
%/K |
+0.5 |
+0.5 |
+0.5 |
+0.45 |
|
烧结密度
Sintering Density |
Kg/m3 |
(4.90~5.0)×103 |
(4.80~5.0)×103 |
(4.80~5.0)×103 |
(4.90~5.0)×103 |
| [g/cm3] |
4.90~5.0 |
4.80~5.0 |
4.80~5.0 |
4.90~5.0 |
|
抗弯强度
Bending Strength |
(N/m2) |
0.5~0.9)×108 |
0.5~0.9)×108 |
0.5~0.9)×108 |
0.5~0.9)×108 |
| [Kgf/mm2] |
5~9 |
5~9 |
5~9 |
5~9 |
|
抗压强度
Compressive Strength |
(N/m2) |
>9.0×108 |
>9.0×108 |
>9.0×108 |
>9.0×108 |
| [Kgf/mm2] |
>90 |
>90 |
>90 |
>90 |
| 抗拉强度
Tensile Strength |
(N/m2) |
(0.2~0.5)×108 |
(0.2~0.5)×108 |
(0.2~0.5)×108 |
(0.2~0.5)×108 |
| [Kgf/mm2] |
2~5 |
2~5 |
2~5 |
2~5 |
磁钢