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Home > Products > Magnetic Powder>Ferrite powder


Bonded Ferrite Powder

Specifications of YXC Plastic Bonded Ferrite Magnetic Materials
YXC series Strontium plastic bonded Ferrite Magnetic powders are suitable for making various bonded magnets.They have good compatibility with different kinds of composite size,such powders have high filling capacity.They can be used for making different kinds of magnets by extrusion or injection molding,The strict quality control system of our plant ensures that the quality is stable and consistent.
1. Material Properties

Trade mark
Material
Characteristics of products
Forming methods
Br(mT)
bHc(kA/m)
iHc(kA/m)
(BH)max(kj/m3)
Mean size
(m)
Typical
Min
Typical
Min
Typical
Min
Typical
Min
YXF-1

BaFe12O19

150
140
95.5
87.5
183
167
3.98
3.58
2-4
Extrusion
or
Calendering
YXF-2

BaFe12O19

180
175
119
115
183
167
5.97
5.57
1.1-1.4
YXF-2b

BaFe12O19

180
175
111
107
151
143
5.57
5.17
1.5-1.8
YXF-2c

BaFe12O19

180
175
111
107
151
143
5.57
5.17
1.8-2.1
YXF-2S
SrFe12O19
180
175
119
115
183
167
5.97
5.57
1.1-1.4
YXF-2Sb
SrFe12O19
180
175
111
107
159
143
5.57
5.17
1.5-1.8
YXF-2Sc
SrFe12O19
180
175
111
107
159
143
5.57
5.17
1.8-2.1
YXF-3
SrFe12O19
250
240
167
159
223
199
11.9
11.1
1.3-1.6
Magnetic orientation
YXF-4
SrFe12O19
245
235
159
151
223
215
11.1
10.4
1.3-1.6
Calendering
orientation
YXF-4b
SrFe12O19
250
240
175
167
255
239
11.9
11.1
1.0-1.3
YXF-5

BaFe12O19

85
83
223
215
0.50-0.75
Film coating

2. Procedure Summaries
a. Before production,the powders should avoid being humidified,and avoid being mixed with other material and impurity.
b. The mixture retio of binders and plasticizers should be defined according to the grade of the powder.The powder and binders and plasticizers should be mixed uniformly.
c. The working temperature of extruding should be controlled between 50OC to 90OC.(calendaring plate is usually between 80OC to 120OC)
d. Please adjust the extruding speed,calendaring speed and times,according to the property required.

Presintered Ferrite powder YXC Specification of YXC Dry Pressing Strontium Ferrite Magnetic Materials

YXC series Strontium Dry Pressing Ferrite Magnetic Powders are suitable for producing magnets by dry pressing. According to the requirement , such products can be classified as isotropic powder and anisotropic powder , anisotropic powder has better orientability. The strict quality control system ensures that the quality is stable and reliable.

1. YXC series Dry Pressing Strontium Ferrite Material Properties
Type
Br
Hcb
Hcj
(BH)max
Sintered density
Grade
mT
Gs
KA/m
Oe
KA/m
Oe
KJ/m3
MGOe
P(g/cm3)
YXC-C1T
230
2300
150
1880
240
3010
9.50
1.19
4.6+/-0.2
YXC-C2T
230
2300
155
1950
278
3500
9.60
1.20
4.6+/-0.2
YXC-C3T
210
2100
150
1880
350
4400
9.00
1.13
4.6+/-0.2
YXC-C1
370
3700
215
2700
231
2900
24.6
3.08
4.6+/-0.2
YXC-C2
385
3850
219
2750
231
2900
26.0
3.27
4.6+/-0.2
YXC-C3
395
3950
231
2900
235
2950
28.8
3.60
4.6+/-0.2

2. YXS series Dry Pressing Barium Ferrite Material Properties.
Trade Mark
Material
Characteristics of products
Granularity
Forming methods
Br(mT)
bHc(kA/m)
ihc(kA/m)
(BH)max(kJ/m3)
SHR%
Pellets
(mm)
Coarse
Powder
(m)
Fine powder
Typical
Min
Typical
Min
Typical
Min
Typical
Min
YXS-1
BaFe12O19
225
220
143
139
215
199
7.96
7.56
151
6-12
3-6
0.80-0.90
Isotropic dry press
195
190
123
119
215
199
5.57
5.17
151
YXS-1R
BaFe12O19
230
225
143
139
255
239
8.36
7.96
151
6-12
3-6
0.80-0.90
215
210
135
131
255
239
7.56
7.16
151
YXS-1A
BaFe12O19
235
230
147
143
239
223
8.75
8.36
151
6-12
3-6
0.80-0.90
200
195
127
123
239
223
5.97
5.57
151

3.Procedure Summaries
There are 6 types of dry pressing ferrite powder for customers:YXC-C1,YXC-C2T,YXC-C3T,YXC-C1,YXC-C2.The procedure summaries for making magnet are as follows:
a. The necessary secondary additives have been added into the powder during the grinding process.Customers shall only add proper quantity of binders and lubricants.The powder must pass through 120 mesh sieve before pressing,so as binders to be uniformly distributed for better orientaton.
b.Please take care of the cleaning of the equipments.Any other materials and impurity should mot be mixed into the powder.
c.During pressing,the pressure required is >=5000N/cm2,and the magnetic field density is >7000 Oe(560KA/m).
d.The sintering temperature for reference is 1220OC to 1270 OC.Please note that the proper sintering temperature should be defined in accordance with the status of the sintered sample pill.

Specifications of YXC Wet pressing Strontium Ferrite Magnetic Materials
YXC series strontium Ferrite Magnetic powders have been designed to produce all grades of hard ferrites.The users will make high quality magnets by adding the provided additives into the powders.Our highly automatic instruments and strict quality control system ensure that the quality is stable and reliable.
a. Material Properties

Trade Mark
Material
Characteristics of products
Granularity
Forming methods
Br(mT)
bHc(kA/m)
ihc(kA/m)
(BH)max(kJ/m3)
SHR %
Pellets(mm)
Coarse Powder (m)
Fine powder
Min
Typical
Min
Typical
Min
Typical
Min
Typical
YXS-2.4B
SrFe12O19
380
370
183
167
199
183
27.1
25.5
15.51
0.80-0.90
Anisotropic dry press
YXS-2.4
SrFe12O19
360
350
223
207
239
223
23.9
22.3
15.51
6-12
3-6
0.80-0.90
YXS2.4H
SrFe12O19
340
330
255
239
279
255
21.5
19.9
151
0.80-0.90
YXS-2.4E
SrFe12O19
320
310
239
223
318
294
19.1
17.5
151
0.80-0.90
YXS-2.5B
SrFe12O19
400
390
191
175
199
183
30.2
28.7
15.51
0.80-0.90
YXS-2.5
SrFe12O19
380
370
233
207
239
223
27.1
25.5
15.51
0.80-0.90
YXS-2.5H
SrFe12O19
360
350
263
247
302
279
23.9
22.3
151
0.80-0.90
YXS-2.5E
SrFe12O19
340
330
255
239
342
318
21.5
19.9
151
0.80-0.90
YXS-2.5U
SrFe12O19
320
310
239
223
398
374
19.1
17.5
151
0.80-0.90
YXS-3
BaFe12O19
390
380
159
151
163
155
28.7
27.1
121
0.90-1.00
Anisotropic wet press
YXS-4B
SrFe12O19
410
400
191
175
199
183
31.8
30.2
131
0.80-0.90
YXS-4
SrFe12O19
390
380
231
215
239
223
28.7
27.1
131
6-12
3-6
0.80-0.90
YXS-4H
SrFe12O19
370
360
259
243
279
263
25.5
23.9
131
0.80-0.90
YXS-4E
SrFe12O19
350
340
259
243
318
294
23.1
21.5
12.51
0.80-0.90
YXS-5B
SrFe12O19
430
420
191
175
199
183
35.0
33.4
131
0.75-0.85
YXS-5
SrFe12O19
410
400
231
223
239
231
31.8
30.2
131
6-12
3-6
0.75-0.85
YXS-5H
SrFe12O19
390
380
283
267
302
279
28.7
27.1
131
6-12
3-6
0.75-0.85
YXS-5E
SrFe12O19
370
360
279
263
342
318
25.5
23.9
12.51
0.75-0.85
YXS-5U
SrFe12O19
350
340
263
247
398
374
23.1
21.5
12.51
0.75-0.85
YXS-6
SrFe12O19
410
400
271
255
279
263
31.8
30.2
12.51
0.70-0.80
YXS-6H
SrFe12O19
400
390
294
279
318
294
30.2
28.7
131
0.70-0.80

*The shrinkage rate on vertical direction is about 130.5%
2.In case that the granular material is pruchased from our company,the particle should be dry ground to 3-5m at first,and then be wet ground in a sand grinding mill or ball mill to less than 1 m ,and then be wet pressed.If the coarse ground powder is bought,it can be wet ground directly.
1).Before grinding,the grinding mill should be cleaned thoroughly.And any materials from other factories or Impurity should not be mixed into our material.
2).Aloong with the powder (granular powder,and coarse ground powder),we provide the secondary additives in separated bags,users should only add it into powder during grinding according to the requirement.
3.All the necessary secondary additives have been added into the fine powders(<1m).So there is no need to add any other material,But two to three hours'wet grinding is necessary for better distribution of particles.
4.During pressing,the moisture of slurry should be controlled between 32% to 37%,the pressure required is >4000N/cm2,and the magnetic field density is >560kA/m.
5.Due to the actual sintering temperature measured by various suppliers' instruments are not the same,we can only provide sintering temperature of 1220OC-1270OC for reference.Please note that the proper sintering temperature should be defined in accordance with the status of the sintered sample pill.


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