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铁氧体(Ferrite)
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| 铁氧体的主要成分是钡或锶和三氧化铁,通过粉末冶金的制造工艺生产而成。其材质特点是硬而脆,磁性较强,温度稳定性好,不易退磁,耐腐蚀性好。广泛应用于文具、马达、喇叭、玩具、除铁器等方面。 |
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| Ferrite
Magnet is produced by powder metallurgical method with chemical
composition of Ba/SrO.6Fe2O3.This hard and brittle magnet has the features of powerful
magnetism,good temperature stability,good resistance to
demagnetization,good corrosion resistance.It is widely used in
stationery,motor,speaker,toy,iron separator etc. |
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| 物理特性
PHYSICAL CHARACTERISTICS |
| 项目
Item |
单位
Unit |
数值
Value |
居里温度
Tc Curie
temperature |
0C |
450~460 |
最高工作温度
T
Mam.operating tenp |
0C |
250 |
温度系数
Temp.coefficient |
αBr |
%0C |
-0.2 |
| αHcj |
%0C |
0.3 |
回复磁导率
μrec Relative
recoil permeability |
|
10.5~1.3 |
密度
D
Density |
g/cm3 |
4.7~5.1 |
硬度
H
Hardness |
HV |
480~580 |
电阻率
ρ
Resistivity |
Ω.cm |
≥106 |
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| 磁性特表
MATERIAL CHARACTRRISTICS |
|
牌号 Type No |
Y10 |
Y25 |
Y30 |
Y30H |
Y33 |
|
项目 Item |
剩磁
Br
Remanence |
mT |
200-240 |
360-400 |
370-400 |
380-400 |
410-430 |
| KGs |
2.0-2.4 |
3.6-4.0 |
3.7-4.0 |
3.8-4.0 |
4.1-4.3 |
矫顽力
Hcb
Coercivity |
KA/m |
130-160 |
135-170 |
175-210 |
230-275 |
220-250 |
| KOe |
1.63-2.01 |
1.7-2.41 |
2.2-2.64 |
2.89-3.46 |
2.77-3.14 |
内禀矫顽力
Hcj
Intrinsic Coercivity |
KA/m |
210-270 |
140-200 |
180-220 |
235-290 |
225-255 |
| KOe |
2.64-3.4 |
1.76-2.51 |
2.26-2.77 |
2.95-3.65 |
2.83-3.21 |
最大磁能积(BH)max
Max.energy product |
KJ/m3 |
6.5-9.5 |
22.5-28 |
26.0-30.0 |
27.0-32.5 |
31.5-35.0 |
| MGOe |
0.8-1.2 |
2.8-2.5 |
3.3-3.8 |
3.4-4.1 |
4.0-4.4 |
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| 1、可根据客户要求生产长方行、圆形、瓦形等各种形状,不同充磁方式的等方性和异方性磁体。 |
| We
can provide isotropic and anisotropic magnets in shapes of block, disc,
ring, tile with
different directions of magnetization according to customer's demand. |
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| 2、一般方形磁铁尺寸:(Nominal
block magnet dimensions) |
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公差(Tolerance) |
长(L) |
宽(W) |
高(H) |
| 4--150mm |
3--100mm |
2-26mm |
| ±2% |
±2% |
±0.2 |
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| 3
、一般圆(环)磁铁尺寸:(Nominal ring magnet dimensions) |
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公差(Tolerance) |
外径(O/Dia) |
内径(I/Dia) |
高(H) |
| 3-220mm |
2--110mm |
1--26mm |
| ±2% |
±2% |
±0.2 |
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