首頁 > 產品資料 > 注塑鐵氧體磁  
 


把鐵氧體合金粉末與樹脂( PA 6或PA12或PPS), 添加劑等混合後, 以注射成形

的方式生產出來的磁體就是注塑鐵氧體磁石. 注塑鐵氧體的磁性能相比注塑

釹鐵硼磁體低, 但它的價格廉宜, 適合用於傳感器磁環, 形狀複雜, 磁性能要

求相對稍低的電機產品等.
 
Magnetic Characteristics & other physical characteristics of Injection Molded Ferrite Magnet- EPF PA6 series
EARTH MAGNETS-EPF- EDN Series
Test method
Test
method
EPF-140
EPF-150
EPF-160
EPF-160P
EPF-170
EPF-170H
EPF-190
EPF-190H
EPF-200
EPF-220
www.earthmagnets.com
Magnetic power
-
-
Ferrite
Base resin
-
-
PA6
MAGNETIC PROPERTIES
-
-
Anisotropic
Residual flux densityBr
MATS-2010H
mT
240
250
260
272
278
278
287
290
298
305
Coercive forcebHc
MATS-2010H
kA/m
180
180
180
190
190
200
187
185
190
180
Intrinsic coercive forceiHc
MATS-2010H
kA/m
250
230
225
230
220
240
215
205
200
195
Maximum energy productBHmax
MATS-2010H
kJ/m3
11.2
12.0
13.0
14.2
14.8
15.0
15.8
16.5
17.1
18.1
Thermal coefficientΔBr/Br
MATS-2010H
%/℃
-0.19
-0.19
-0.19
-0.19
-0.19
-0.19
-0.19
-0.19
-0.19
-0.19
Thermal coefficientΔHc/Hc
MATS-2010H
%/℃
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
0.2~0.3
OTHER PROPERTIES
　
　
　
　
　
　
　
　
　
　
　
　
Tensile strength
ASTM D-638
MPa
78
80
78
70
75
70
75
75
75
75
Flexural strength
ASTM D-790
MPa
147
157
147
140
145
145
145
145
145
145
Flexural modulus
ASTM D-790
MPa
17000
17000
18000
21000
22000
22000
22000
22000
23000
23500
Izod impact (with notch)
ASTM D-256
J/m
31
32
32
34
32
32
34
34
36
40
Rockwell hardness coefficient
ASTM D-785
R scale
118
119
120
120
120
120
120
120
120
120
Heat deflection temperature1.82Mpa
ASTM D-648
℃
163
165
166
177
176
176
176
176
178
180
Specific gravity
ASTM D-792
-
3.22
3.37
3.46
3.53
3.58
3.58
3.71
3.71
3.76
3.83
Water absorption (230C 24 hrs in water)
ASTM D-570
%
0.2
0.17
0.16
0.15
0.15
0.15
0.15
0.15
0.14
0.14
Molding shrinkage coefficient　
EM Method
%
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
Coefficient of thermal expansion
EM Method
/℃
4.4X10-
5
4.3X10-5
4.2X10-5
4.0X10-5
3.8X10-5
3.8X10-5
3.5X10-5
3.5X10-5
3.4X10-5
3.1X10-
5
Melt flow rate （2700C x 5 kg)  　
ASTM D-1238
g/10min
45
40
 -
70
 -
 -
 -
 -
 -
 -
Melt flow rate （2700C x 10 kg)  　
ASTM D-1238
g/10min
 -
 - 
70
 -
40
200
40
100
80
150
Flammability
UL94
Class
V-0
 -
V-0
 -
V-0
 -
 -
 -
 -
 -

 
Magnetic Characteristics & other physical characteristics of Injection Molded Ferrite Magnet - EPF PA12 & PPS series
EARTH MAGNETS-EPF- EDN Series
Test method
Test method
EPF-062K
EPF-102
EPF-132
EPF-152N
EPF-172A
EPF-192
EPF-192H
EPF-202
EPF-202F
EPF-212
EPPS-F134L
EPPS-F164L
www.earthmagnets.com
Magnetic power
-
-
Ferrite
Base resin
-
-
PA12
MAGNETIC PROPERTIES
-
-
Anisotropic
Residual flux densityBr
-
mT
105
215
232
260
272
287
290
292
285
305
305
305
Coercive forcebHc
-
kA/m
80
160
175
195
195
190
200
200
195
205
205
205
Intrinsic coercive forceiHc
-
kA/m
159
27
263
265
235
210
235
230
220
230
230
230
Maximum energy productBHmax
-
kJ/m3
1.5
8.5
10.8
13.3
14.5
16.0
16.5
16.6
16.1
18.1
18.1
18.1
Thermal coefficientΔBr/Br
-
%/℃
-0.19
Thermal coefficientΔHc/Hc
-
%/℃
0.2~0.3
OTHER PROPERTIES
Tensile strength
ASTM D-638
MPa
43
54
49
58
58
5452
50
47
44
44
44
44
Flexural strength
ASTM D-790
MPa
74
95
88
108
108
98
96
100
84
85
85
85
Flexural modulus
ASTM D-790
MPa
6000
7500
85000
10000
11000
14000
14000
12000
13500
16000
16000
16000
Izod impact (with notch)
ASTM D-256
J/m
25
34
31
31
33
32
32
33
37
35
35
35
Rockwell hardness coefficient
ASTM D-785
R scale
108
108
108
114
115
115
155
115
102
116
116
116
Heat deflection temperature1.82Mpa
ASTM D-648
℃
118
12
110
141
145
145
145
120
130
134
134
134
Specific gravity
ASTM D-792
-
2.84
3.03
3.29
3.38
3.52
3.70
3.70
3.71
3.65
3.8
3.8
3.8
Water absorption (230C 24 hrs in water)
ASTM D-570
%
0.06
0.05
0.05
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
Molding shrinkage coefficient　
EM Method
%
0.7
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
Coefficient of thermal expansion
EM Method
/℃
8.0X10-5
7.2X10-5
7.0X10-5
5.6X10-5
5.4X10-5
4.6X10-5
4.6X10-5
4.3X10-5
4.5X10-5
4.0X10-5
4.0X10-5
4.0X1
0-5
Melt flow rate （2700C x 5 kg)  　
ASTM D-1238
g/10min
-
90
40
60
-
-
-
-
-
-
-
-
Melt flow rate （2700C x 10 kg)  　
ASTM D-1238
g/10min
-
-
-
-
120
60
120
100
150
140
140
140
Flammability
UL94
Class
-
-
V-2
V-1
V-0
-
-
V-0
V-0
V-0
V-0
V-0