CN102503397B - Manganese oxide doped manganese-zinc ferrite and preparation method thereof - Google Patents
Manganese oxide doped manganese-zinc ferrite and preparation method thereof Download PDFInfo
- Publication number
- CN102503397B CN102503397B CN201110387635.8A CN201110387635A CN102503397B CN 102503397 B CN102503397 B CN 102503397B CN 201110387635 A CN201110387635 A CN 201110387635A CN 102503397 B CN102503397 B CN 102503397B
- Authority
- CN
- China
- Prior art keywords
- manganese
- zinc ferrite
- mno
- preparation
- sand milling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention discloses manganese oxide doped manganese-zinc ferrite, which comprises major materials and additives, wherein the major materials include 50-55mol% of Fe2O3, 35-43mol% of MnO and 2-15mol% of ZnO, and the additives include 0.1-1wt% of Mn3O4 and at least two of 0.02-0.1wt% of CaCO3, 0.02-0.1wt% of V2O5, 0.02-0.40wt% of TiO2, 0.02-0.05wt% of Nb2O5, 0-5wt% of CoO3, 0.02-0.40wt% of ZrO2 and 0.02-0.40wt% of SnO2. The invention further discloses a preparation method of the manganese oxide doped manganese-zinc ferrite. The manganese oxide doped manganese-zinc ferrite has the advantages of quite low power consumption under same conditions.
Description
Technical field
The present invention relates to a kind of magnetic material, particularly, relate to manganese-zinc ferrite of a kind of mangano-manganic oxide that adulterates and preparation method thereof.
Background technology
Along with developing rapidly of electronics and information industry, the ferritic range of application of MnZn increases day by day.Due to MnZn ferrite, there is the characteristics such as high saturation magnetic flux density, high magnetic permeability, high resistivity, low-loss, thereby be widely used in various electronic devices and components, as power transformer, choking-winding, pulse broadband transformer, magnetic deflection arrangement and sensor.The FERRITE CORE of utilizing the characteristics such as MnZn ferrite high saturation magnetic flux density, high resistivity and low-loss to make, has become computer, communication, colour TV, video tape recorder, office automation and the indispensable base components of other electronic equipment.
Have in the prior art repeatedly the introduction report to doped with trace elements in manganese-zinc ferrite, but its power consumption when 80 ℃, 100 ℃ and 120 ℃ all at 300kW/m
3above, as the MnZn Ferrite Material that Chinese patent application 03115906.0 is narrated, the power consumption of 100 ℃ (Pcv) is at 370 kW/m
3left and right, aspect reduction power consumption, contribution is little.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, and a kind of manganese-zinc ferrite under 80 ℃, 100 ℃ and 120 ℃ of conditions with the doping mangano-manganic oxide of lower power consumption is provided, and its preparation method is provided simultaneously.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The adulterate manganese-zinc ferrite of mangano-manganic oxide, by following composition, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：50~55mol%；
MnO： 35~43mol%；
ZnO： 2～15 mol%；
Additive is Mn
3o
4component with all the other at least 2 kinds of percentage by weights:
Mn
3O
4：0.1～1 wt％；
CaCO
3：0.02～0.1wt％；
V
2O
5：0.02～0.1 wt％；
TiO
2：0.02～0.40 wt％；
Nb
2O
5：0.02～0.05 wt％；
CoO
3：0～5 wt％；
ZrO
2：0.02～0.40 wt％；
SnO
2：0.02～0.40 wt％。
Preferably, the component that described major ingredient is following molar percentage:
Fe
2O
3：53.28mol%；
MnO：36.96mol%；
ZnO： 9.76mol%。
Preferably, 6 kinds of components that described additive is following percentage by weight:
Mn
3O
4：0.5wt％；
CaCO
3：0.05wt％；
V
2O
5：0.03 wt％；
TiO
2：0.08wt％；
Nb
2O
5：0.03wt％；
ZrO
2：0.02wt％。
The preparation method of the manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, comprises following technical process:
(1) preparation of Preburning material: according to formula rate of the present invention, take respectively Fe
2o
3, MnO, ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling;
After reserving, remaining major ingredient carries out that wet method sand milling is more than 30 minutes for the first time, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 8 ~ 9%, stirs 2 hours, the dry granulation of spraying, carry out pre-burning, calcined temperature is 850 ℃～980 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 0.8～1.0 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 8 ~ 9%, adopts atomizing granulating technology to make 40-160 object particle powder;
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.3-0.5%, flow angle is less than 30 degree, form the good finished particle powder of plasticity, damping process after in 1300 ℃～1400 ℃ sintering 3～5 hours, obtain finished product.
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention has following beneficial effect:
1, the manganese-zinc ferrite of doping mangano-manganic oxide power consumption≤300 kW/m under 80 ℃ and 120 ℃ of (100KHz, 200mT) conditions
3, power consumption≤260kW/m when 100 ℃ (100KHz, 200mT)
3, (under the same terms, power consumption is 300 kW/m with common manganese-zinc ferrite
3compare above), its power consumption is quite low, has adapted to the demand of multiple special industry;
In the formula of the manganese-zinc ferrite of the doping mangano-manganic oxide that 2, the present invention proposes, added appropriate Mn
3o
4, saving production cost and reducing on the basis of technological requirement, improved the resistivity of manganese-zinc ferrite, reduced its power loss; CaCO
3there is crystal grain thinning, suppress grain growth excessive, improve resistivity, reduce the effect of high-frequency loss; TiO
2there is very strong adhesive capacity, make ferrite there is stronger hardness; Nb
2o
5can improve ferritic resistivity, reduce its sintering temperature, make it more be beneficial to environmental protection;
3, common soft magnetic ferrite is in when batching, in ratio accurately, prepares burden, and adds needed additive when secondary sand milling, and such production technology, can obtain power consumption when 100 ℃ (100KHz, 200mT) and approach 300kW/m
3material, but the product power consumption of this material when 80 ℃ and 120 ℃ can be very high, the MnO that reserves the 0.5wt% left and right of major ingredient total weight adds when follow-up secondary wet process sand milling, so not only on material at high temperature curve, can play good effect, and because the MnO of not process pre-burning adds, make particle powder there is certain plasticity, so both can reduce the pressure of material when moulding, prevent that again material from producing the phenomenon of cracking when sintering;
4, from the manganese-zinc ferrite of doping mangano-manganic oxide and the power consumption comparison diagram each temperature of common ferrite, can find out, at 20 ℃-120 ℃, product proposed by the invention all has lower power consumption, is applicable to the demand of different industries.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is in embodiment 1, adulterate manganese-zinc ferrite and common manganese-zinc ferrite power consumption comparison diagram under 100KHz, 200mT condition of work of mangano-manganic oxide.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
embodiment 1
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：50mol%；
MnO： 43mol%；
ZnO： 7 mol%；
Additive is Mn
3o
4component with all the other 2 kinds of percentage by weights:
Mn
3O
4：0.1wt％；
CaCO
3：0.02wt％；
V
2O
5：0.03 wt％；
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following technique, prepared:
(1) preparation of Preburning material: according to formula rate of the present invention, take respectively Fe
2o
3, MnO, ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling;
After reserving, remaining major ingredient carries out for the first time wet method sand milling 30 minutes, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 9%, stirs 2 hours, and the dry granulation of spraying, carries out pre-burning, and calcined temperature is 850 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 1 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 9%, adopts atomizing granulating technology to make 40 order ~ 160 object particle powders;
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.5%, and flow angle is 30 degree, forms the good finished particle powder of plasticity, damping process after in 1300 ℃ of sintering 5 hours, obtain finished product.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, initial permeability is μ i=2320, high temperature saturation flux density is Bs=430mT;
As shown in Figure 1, the manganese-zinc ferrite of doping mangano-manganic oxide and the contrast of common manganese-zinc ferrite under each temperature conditions power consumption of Fig. 1 for preparing by process proposed by the invention, from scheming, can find out, from 20 ℃-120 ℃, the power consumption of two kinds of manganese-zinc ferrites is along with the rising of temperature, all be first the trend that declines, rises again during to 100 ℃, 100 ℃ is power consumption valley point.The power consumption of the manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention is all starkly lower than common manganese-zinc ferrite from 20 ℃-120 ℃; When condition of work is 100KHz, 200mT, the contrast of both power consumptions is as follows:
80 ℃ and 120 ℃: power consumption of the present invention is 300 kW/m
3; Common manganese-zinc ferrite power consumption is 320 kW/m
3;
100 ℃: power consumption of the present invention is 260 kW/m
3; Common manganese-zinc ferrite power consumption is 290 kW/m
3.
embodiment 2
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：53.28mol%；
MnO：36.96mol%；
ZnO： 9.76mol%；
Additive is 6 kinds of components of following percentage by weight:
Mn
3O
4：0.5wt％；
CaCO
3：0.05wt％；
V
2O
5：0.03 wt％；
TiO
2：0.08wt％；
Nb
2O
5：0.03wt％；
ZrO
2：0.02wt％；
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following technique, prepared:
(1) preparation of Preburning material: according to formula rate of the present invention, take respectively Fe
2o
3, MnO, ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling;
After reserving, remaining major ingredient carries out for the first time wet method sand milling 35 minutes, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 8%, stirs 2 hours, and the dry granulation of spraying, carries out pre-burning, and calcined temperature is 950 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 0.9 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 9%, adopts atomizing granulating technology to make 40 order ~ 160 object particle powders;
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.3%, flow angle 29 degree, forms the good finished particle powder of plasticity, damping process after in 1365 ℃ of sintering 4 hours, obtain finished product.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Initial permeability: μ i=2380
Saturation flux density: Bs=436mT
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 285kW/m
3;
100 ℃, power consumption: 255kW/m
3.
embodiment 3
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3： 55mol%；
MnO： 35mol%；
ZnO： 10 mol%；
Additive is Mn
3o
4component with all the other 3 kinds of weight fractions:
Mn
3O
4：1wt％；
CaCO
3：0.1wt％；
V
2O
5： 0.02 wt％；
Nb
2O
5：0.02 wt％；
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following technique, prepared:
(1) preparation of Preburning material: according to formula rate of the present invention, take respectively Fe
2o
3, MnO, ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling;
After reserving, remaining major ingredient carries out for the first time wet method sand milling 40 minutes, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 9%, stirs 2 hours, and the dry granulation of spraying, carries out pre-burning, and calcined temperature is 980 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 1 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 9%, adopts atomizing granulating technology to make 40 order ~ 160 object particle powders;
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.4%, and flow angle is less than 26 degree, forms the good finished particle powder of plasticity, damping process after in 1350 ℃ of sintering 4 hours, obtain finished product.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Initial permeability: μ i=2310
Saturation flux density: Bs=432mT
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 295kW/m
3;
100 ℃, power consumption: 260kW/m
3.
embodiment 4
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：55mol%；
MnO： 43mol%；
ZnO： 2mol%；
Additive is Mn
3o
4component with all the other 4 kinds of weight fractions:
Mn
3O
4：0.8 wt％；
V
2O
5： 0.1 wt％；
TiO
2： 0.40 wt％；
CoO
3：1 wt％；
ZrO
2：0.03 wt％；
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following technique, prepared:
(1) preparation of Preburning material: according to formula rate of the present invention, take respectively Fe
2o
3, MnO, ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling;
After reserving, remaining major ingredient carries out for the first time wet method sand milling 50 minutes, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 9%, stirs 2 hours, and the dry granulation of spraying, carries out pre-burning, and calcined temperature is 920 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 0.9 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 8%, adopts atomizing granulating technology to make 40 order ~ 160 object particle powders;
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.3%, flow angle 28 degree, forms the good finished particle powder of plasticity, damping process after in 1400 ℃ of sintering 3 hours, obtain finished product.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Initial permeability: μ i=2360
Saturation flux density: Bs=435mT
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 292kW/m
3;
100 ℃, power consumption: 258kW/m
3.
embodiment 5
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：50mol%；
MnO： 35mol%；
ZnO： 15 mol%；
Additive is Mn
3o
4component with all the other 5 kinds of weight fractions:
Mn
3O
4：0.2 wt％；
V
2O
5： 0.1 wt％；
TiO
2： 0.1 wt％；
Nb
2O
5：0.04 wt％；
CoO
3： 5 wt％；
SnO
2： 0. 2wt％；
Preparation method is with technical process described in embodiment 1.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Initial permeability: μ i=2330
Saturation flux density: Bs=434mT
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 290kW/m
3;
100 ℃, power consumption: 260kW/m
3.
embodiment 6
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：52mol%；
MnO： 42mol%；
ZnO： 6 mol%；
Additive is Mn
3o
4component with all the other 6 kinds of weight fractions:
Mn
3O
4：0.6wt％
CaCO
3：0.06wt％；
V
2O
5：0.06 wt％；
TiO
2：0.22wt％；
CoO
3：2wt％；
ZrO
2：0.1 wt％；
SnO
2：0.1 wt％；
Preparation method is with technical process described in embodiment 2.。
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Initial permeability: μ i=2320
Saturation flux density: Bs=435mT
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 290kW/m
3;
100 ℃, power consumption: 260kW/m
3.
embodiment 7
The manganese-zinc ferrite of doping mangano-manganic oxide proposed by the invention, by following component, prepared:
Major ingredient is the component of following molar percentage:
Fe
2O
3：52mol%；
MnO： 40mol%；
ZnO： 8 mol%；
Additive is Mn
3o
4component with all the other 4 kinds of weight fractions:
Mn
3O
4：0.6wt％
TiO
2：0.02wt％；
Nb
2O
5：0.05 wt％；
ZrO
2：0.4 wt％；
SnO
2：0.02 wt％；
Preparation method is with technical process described in embodiment 3.
The manganese-zinc ferrite of the doping mangano-manganic oxide of preparing by above technique, design parameter is as follows:
Power consumption under 100KHz, 200mT condition of work:
80 ℃ and 120 ℃, power consumption (Pcv): 300kW/m
3;
100 ℃, power consumption: 260kW/m
3.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the adulterate preparation method of manganese-zinc ferrite of mangano-manganic oxide, comprises following technical process:
(1) preparation of Preburning material: according to formula rate, take respectively major ingredient Fe
2o
3, MnO and ZnO, wherein, before wet method sand milling for the first time, the MnO of 0.5wt% that reserves major ingredient total weight adds during in order to follow-up secondary wet process sand milling, wherein, the component that major ingredient is following molar percentage:
Fe
2O
3：50~55mol%；
MnO： 35~43mol%；
ZnO： 2～15 mol%；
After reserving, remaining major ingredient carries out that wet method sand milling is more than 30 minutes for the first time, and the poly-vinyl alcohol solution that the concentration that then adds 10wt% ingredients by weight is 8 ~ 9%, stirs 2 hours, the dry granulation of spraying, carry out pre-burning, calcined temperature is 850 ℃～980 ℃, obtains Preburning material;
(2) preparation of particulate material: Preburning material is carried out to wet method sand milling for the second time, now proportionally add reserved MnO in additive and step (1); When wet method sand milling to the average grain diameter of particle is 0.8～1.0 micron, the poly-vinyl alcohol solution that the concentration that adds 10wt% ingredients by weight is 8 ~ 9%, adopts atomizing granulating technology to make 40-160 object particle powder, and wherein, additive is Mn
3o
4component with all the other at least 2 kinds of percentage by weights:
Mn
3O
4：0.1～1 wt％；
CaCO
3：0.02～0.1wt％；
V
2O
5：0.02～0.1 wt％；
TiO
2：0.02～0.40 wt％；
Nb
2O
5：0.02～0.05 wt％；
CoO
3：0～5 wt％；
ZrO
2：0.02～0.40 wt％；
SnO
2：0.02～0.40 wt％；
(3) material sintering: before moulding, first particulate material is carried out to damping processing, making its water content is 0.3-0.5%, flow angle is less than 30 degree, form the good finished particle powder of plasticity, damping process after in 1300 ℃～1400 ℃ sintering 3～5 hours, obtain finished product.
2. the preparation method of the manganese-zinc ferrite of doping mangano-manganic oxide according to claim 1, the component that described major ingredient is following molar percentage:
Fe
2O
3：53.28mol%；
MnO：36.96mol%；
ZnO： 9.76mol%。
3. the preparation method of the manganese-zinc ferrite of doping mangano-manganic oxide according to claim 1 and 2,6 kinds of components that described additive is following percentage by weight:
Mn
3O
4：0.5wt％；
CaCO
3：0.05wt％；
V
2O
5：0.03 wt％；
TiO
2：0.08wt％；
Nb
2O
5：0.03wt％；
ZrO
2：0.02wt％。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387635.8A CN102503397B (en) | 2011-11-29 | 2011-11-29 | Manganese oxide doped manganese-zinc ferrite and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387635.8A CN102503397B (en) | 2011-11-29 | 2011-11-29 | Manganese oxide doped manganese-zinc ferrite and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102503397A CN102503397A (en) | 2012-06-20 |
| CN102503397B true CN102503397B (en) | 2014-03-12 |
Family
ID=46215548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110387635.8A Active CN102503397B (en) | 2011-11-29 | 2011-11-29 | Manganese oxide doped manganese-zinc ferrite and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102503397B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064309A (en) * | 2013-03-22 | 2014-09-24 | 上海美星电子有限公司 | Magnetic material for high-power LED and LLC converters as well as preparation method of magnetic material |
| CN103342554A (en) * | 2013-07-05 | 2013-10-09 | 无锡斯贝尔磁性材料有限公司 | Broad-band low-loss magnesium-zinc ferrite magnetic material and preparation process thereof |
| CN109437877A (en) * | 2018-10-23 | 2019-03-08 | 无锡斯贝尔磁性材料有限公司 | A kind of production technology of high solids content manganese-zinc ferrite slurry |
| CN111302780A (en) * | 2018-12-12 | 2020-06-19 | 泰州茂翔电子器材有限公司 | Soft magnetic material with high Q, wide temperature and low loss and production method thereof |
| CN111138182A (en) * | 2019-12-31 | 2020-05-12 | 天长市中德电子有限公司 | Method for preparing manganese-zinc ferrite with high magnetic conductivity |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492453A (en) * | 2002-10-25 | 2004-04-28 | 上海华源磁业有限公司 | High frequency low loss soft magnetic ferrite magnetic core material |
| KR20070084472A (en) * | 2004-11-19 | 2007-08-24 | 히타치 긴조쿠 가부시키가이샤 | Low-loss mn-zn ferrite and utilizing the same, electronic part and switching power supply |
| CN1319907C (en) * | 2005-11-17 | 2007-06-06 | 上海交通大学 | High performant low consumption manganese zine ferrite material and preparation process thereof |
| CN1889204A (en) * | 2006-07-06 | 2007-01-03 | 沈永春 | Soft magnetic MnZn ferrite material and producing method thereof |
| CN102044320A (en) * | 2009-10-15 | 2011-05-04 | 上海康顺磁性元件厂有限公司 | Soft-magnetic Mn-Zn ferrite material with ultrahigh magnetic permeability and a preparation method thereof |
| CN102194561B (en) * | 2010-03-17 | 2013-08-14 | 无锡斯贝尔磁性材料有限公司 | Soft magnetic ferrite material and preparation process thereof |
| CN103011790B (en) * | 2012-12-11 | 2014-01-08 | 海宁联丰磁业股份有限公司 | Preparation method of high-permeability manganese zinc ferrite |
-
2011
- 2011-11-29 CN CN201110387635.8A patent/CN102503397B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102503397A (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102603279B (en) | High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof | |
| CN102503397B (en) | Manganese oxide doped manganese-zinc ferrite and preparation method thereof | |
| CN101620907B (en) | Broad temperature low standby power consumption FPT type soft magnetic ferrite and preparation method thereof | |
| CN102231312B (en) | Low-total harmonic distortion (THD) wideband high-permeability MnZn ferrite material and manufacturing method thereof | |
| CN102693803B (en) | Wide-temperature and low-loss MnZn power ferrite and preparation method thereof | |
| CN105565790A (en) | YR950 wide-temperature high-direct-current-superposition low-power-consumption manganese-zinc ferrite material and preparation method thereof | |
| CN100368341C (en) | High magnetic permeability ferrite in manganese zinc series of having excellent frequency characteristic and preparation method | |
| CN103626484B (en) | Wide-temperature-range nickel-zinc soft-magnetic ferrite and preparation method thereof | |
| CN102603278B (en) | Stress-resistant nickel zinc ferrite with initial permeability of 120, and preparation method of stress-resistant nickel zinc ferrite | |
| CN103058643A (en) | Mn-Zn soft magnetic ferrite material with high, temperature, high superposition and low power consumption, and preparation method of Mn-Zn soft magnetic ferrite material | |
| CN103396111A (en) | High-frequency wide-temperature low-loss manganese-zinc ferrite and manufacturing technique thereof | |
| CN101863657B (en) | Mn-Zn ferrite material with wide temperature and high initial magnetoconductivity and preparation method thereof | |
| CN102194561B (en) | Soft magnetic ferrite material and preparation process thereof | |
| CN112979301B (en) | High-frequency high-temperature low-loss MnZn power ferrite material and preparation method thereof | |
| CN104529423A (en) | Low-temperature-factor anti-stress nickel zinc ferrite and preparation method thereof | |
| CN101913851A (en) | Wide-temperature high-permeability Mn-Zn soft magnetic ferrite material and magnetic core prepared therefrom as well as preparation method thereof | |
| CN100425570C (en) | Mn-Zn ferrite with wide temperature range and high magnetic conductivity and its prepn process | |
| CN105198395A (en) | Heat shock-resistant power Ni-Zn ferrite and preparation method thereof | |
| CN107021746A (en) | A kind of MnZn ferrite material and preparation method thereof | |
| CN102693802A (en) | Wide-temperature MnZn power ferrite material and preparation method thereof | |
| CN101786871A (en) | Soft Ferrite | |
| CN103693951B (en) | Anti-electromagnetic interference manganese zinc ferrite material and preparation method thereof | |
| CN112694323A (en) | Wide-temperature-range high-Bs manganese-zinc ferrite magnetic material and preparation method thereof | |
| CN112408969A (en) | Wide-temperature-range low-power-consumption manganese-zinc ferrite material and preparation method thereof | |
| CN109678486A (en) | A kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |