CN104817318A - High-frequency high-power soft-magnetic ferrite material and preparation method thereof - Google Patents
High-frequency high-power soft-magnetic ferrite material and preparation method thereof Download PDFInfo
- Publication number
- CN104817318A CN104817318A CN201510172874.XA CN201510172874A CN104817318A CN 104817318 A CN104817318 A CN 104817318A CN 201510172874 A CN201510172874 A CN 201510172874A CN 104817318 A CN104817318 A CN 104817318A
- Authority
- CN
- China
- Prior art keywords
- magnetic ferrite
- power
- preparation
- sawdust
- silicone resin
- 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.)
- Pending
Links
Landscapes
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a high-frequency high-power soft-magnetic ferrite material and its preparation method. The invention is characterized in that the high-frequency high-power soft-magnetic ferrite material is prepared from the following raw materials, by weight, 50-70 parts of ferric oxide, 28-32 parts of manganese oxide, 14-18 parts of zinc oxide, 0.3-0.5 part of titanium dioxide, 0.2-0.4 part of calcium carbonate, 0.1-0.3 part of polyvinylpyrrolidone, 0.4-1 part of sawdust, 0.02-0.06 part of sodium lignosulfonate, 2-4 parts of organic silicone resin and a proper amount of deionized water. The soft-magnetic ferrite material has high frequency and high power, can meet requirements of a power source material on high saturation magnetic induction, low loss and stability, has advantages of low production cost, simple operation and good wear resistance, and is beneficial to miniaturization and high-efficiency development of the power source material.
Description
Technical field
The present invention relates to soft magnetic ferrite field, be specifically related to a kind of high-frequency high-power soft magnetic ferrite and preparation method thereof.
Background technology
Soft magnetic ferrite, as a kind of important basic function material, is widely used in the electronic industries such as communication, sensing, audio and video equipment, transformer.Along with digital television, notebook computer universal, electronics is to light, thin, miniaturization, and this necessity of making use of momentum reduces power volume, proposes higher, stricter requirement to power supply.The soft magnetic ferrite of high-frequency high-power, as the material of power supply, can meet the high saturated magnetic intensity of power material, low-loss and stability.
Summary of the invention
The object of this invention is to provide a kind of high-frequency high-power soft magnetic ferrite and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of high-frequency high-power soft magnetic ferrite and preparation method thereof, is made up of the raw material of following weight part: ferric oxide 50-70, manganese oxide 28-32, zinc oxide 14-18, titanium dioxide 0.3-0.5, calcium carbonate 0.2-0.4, polyvinylpyrrolidone 0.1-0.3, sawdust 0.4-1, sodium lignosulfonate 0.02-0.06, silicone resin 2-4, deionized water are appropriate;
A kind of high-frequency high-power soft magnetic ferrite of the present invention and preparation method thereof, be made up of following concrete steps:
(1) sawdust is cleaned up post-drying to pulverize, then ferric oxide, manganese oxide, zinc oxide, sawdust and deionized water are added in ball mill and carry out wet ball grinding and mix, Ball-milling Time is 6h;
(2) powder of step (1) gained is placed in sintering oven and carries out pre-burning, calcined temperature controls at 700-800 ° of C, and burn-in time is 120min;
(3) titanium dioxide is become with calcium carbonate ball milling after nano-powder and mix with polyvinylpyrrolidone, sodium lignosulfonate, be added to mechanical stirring in mixer to mix, transfer in ultrasonator, adding appropriate deionized water ultrasonic disperse 20-40min, to obtain dispersion liquid for subsequent use again;
(4) by the dispersion liquid mixing and stirring of gained in the powder of step (2) pre-burning and step (3), granulation, adopt half dry-pressing compression moulding, blank is put into sintering oven, adopt nitrogen as shielding gas, be 1000-1300 ° of C in sintering temperature, soaking time is that 120-180min sinters, and is cooled to room temperature after terminating;
(5) hexamethyldisiloxane of silicone resin with 4-6 times of weight part diluted, then be impregnated in silicone resin solution by the blank of step (4), flood 2-3 time, each 3-5min, after dry solidification.
Advantage of the present invention is: the present invention adds sawdust and carries out pre-burning, add the surfaceness of soft magnetic ferrite, enhance the compactness of blank, adopt half dry-pressing compression moulding, economizing on resources also, environmental pollution is little, at the silicone resin of the surface-coated of blank, enhance the round and smooth of blank surface, planarization and wear resistance, and reduce the wastage, the titanium dioxide added can improve magnetic permeability and improve magnetic permeability temperature factor, reduce the effect of eddy-current loss and magnetic hysteresis loss, the calcium carbonate added has makes initial permeability increase, improve the effect of frequency response characteristic, soft magnetic ferrite high-frequency high-power of the present invention, the saturated magnetic intensity that power material is high can be met, the requirement of low-loss and stability, and production cost is low, simple to operate, wear resistance is good, be conducive to the development of power material miniaturization and high efficiency.
Embodiment
Below by specific examples, the present invention is described in detail.
A kind of high-frequency high-power soft magnetic ferrite and preparation method thereof, is made up of the raw material of following weight part (kilogram): ferric oxide 53, manganese oxide 30, zinc oxide 16, titanium dioxide 0.4, calcium carbonate 0.4, polyvinylpyrrolidone 0.2, sawdust 0.7, sodium lignosulfonate 0.03, silicone resin 3, deionized water are appropriate;
A kind of high-frequency high-power soft magnetic ferrite of the present invention and preparation method thereof, be made up of following concrete steps:
(1) sawdust is cleaned up post-drying to pulverize, then ferric oxide, manganese oxide, zinc oxide, sawdust and deionized water are added in ball mill and carry out wet ball grinding and mix, Ball-milling Time is 6h;
(2) powder of step (1) gained is placed in sintering oven and carries out pre-burning, calcined temperature controls at 800 ° of C, and burn-in time is 120min;
(3) titanium dioxide is become with calcium carbonate ball milling after nano-powder and mix with polyvinylpyrrolidone, sodium lignosulfonate, be added to mechanical stirring in mixer to mix, transfer in ultrasonator, adding appropriate deionized water ultrasonic disperse 30min, to obtain dispersion liquid for subsequent use again;
(4) by the dispersion liquid mixing and stirring of gained in the powder of step (2) pre-burning and step (3), granulation, adopt half dry-pressing compression moulding, blank is put into sintering oven, adopt nitrogen as shielding gas, be 1150 ° of C in sintering temperature, soaking time is that 160min sinters, and is cooled to room temperature after terminating;
(5) hexamethyldisiloxane of silicone resin with 5 times of weight parts diluted, then be impregnated in silicone resin solution by the blank of step (4), flood 2 times, each 5min, after dry solidification.
The performance data of the soft magnetic ferrite obtained by above-described embodiment:
Initial permeability (25 ± 3 ° of C): 5520 ± 25%;
Power loss (100Kc, 200mT, KW/m3): 562(25 ± 2 ° C), 265(100 ± 2 ° C);
Saturation magnetic flux density (mT, 100 ° of C): 435;
Curie temperature (° C) > 242.
Claims (2)
1. high-frequency high-power soft magnetic ferrite and preparation method thereof, it is characterized in that, be made up of the raw material of following weight part: ferric oxide 50-70, manganese oxide 28-32, zinc oxide 14-18, titanium dioxide 0.3-0.5, calcium carbonate 0.2-0.4, polyvinylpyrrolidone 0.1-0.3, sawdust 0.4-1, sodium lignosulfonate 0.02-0.06, silicone resin 2-4, deionized water are appropriate.
2. a kind of high-frequency high-power soft magnetic ferrite and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:
(1) sawdust is cleaned up post-drying to pulverize, then ferric oxide, manganese oxide, zinc oxide, sawdust and deionized water are added in ball mill and carry out wet ball grinding and mix, Ball-milling Time is 6h;
(2) powder of step (1) gained is placed in sintering oven and carries out pre-burning, calcined temperature controls at 700-800 ° of C, and burn-in time is 120min;
(3) titanium dioxide is become with calcium carbonate ball milling after nano-powder and mix with polyvinylpyrrolidone, sodium lignosulfonate, be added to mechanical stirring in mixer to mix, transfer in ultrasonator, adding appropriate deionized water ultrasonic disperse 20-40min, to obtain dispersion liquid for subsequent use again;
(4) by the dispersion liquid mixing and stirring of gained in the powder of step (2) pre-burning and step (3), granulation, adopt half dry-pressing compression moulding, blank is put into sintering oven, adopt nitrogen as shielding gas, be 1000-1300 ° of C in sintering temperature, soaking time is that 120-180min sinters, and is cooled to room temperature after terminating;
(5) hexamethyldisiloxane of silicone resin with 4-6 times of weight part diluted, then be impregnated in silicone resin solution by the blank of step (4), flood 2-3 time, each 3-5min, after dry solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172874.XA CN104817318A (en) | 2015-04-14 | 2015-04-14 | High-frequency high-power soft-magnetic ferrite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172874.XA CN104817318A (en) | 2015-04-14 | 2015-04-14 | High-frequency high-power soft-magnetic ferrite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104817318A true CN104817318A (en) | 2015-08-05 |
Family
ID=53727829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510172874.XA Pending CN104817318A (en) | 2015-04-14 | 2015-04-14 | High-frequency high-power soft-magnetic ferrite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104817318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070479A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Magnetic core material for transformer high in magnetic permeability |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889204A (en) * | 2006-07-06 | 2007-01-03 | 沈永春 | Soft magnetic MnZn ferrite material and producing method thereof |
| CN101483092A (en) * | 2008-01-16 | 2009-07-15 | 横店集团东磁股份有限公司 | High saturation magnetic flux density low loss soft magnetic ferrite material and producing method thereof |
| CN103483906A (en) * | 2013-08-28 | 2014-01-01 | 北京印刷学院 | Soft magnetic ferrite printing ink and application thereof |
-
2015
- 2015-04-14 CN CN201510172874.XA patent/CN104817318A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889204A (en) * | 2006-07-06 | 2007-01-03 | 沈永春 | Soft magnetic MnZn ferrite material and producing method thereof |
| CN101483092A (en) * | 2008-01-16 | 2009-07-15 | 横店集团东磁股份有限公司 | High saturation magnetic flux density low loss soft magnetic ferrite material and producing method thereof |
| CN103483906A (en) * | 2013-08-28 | 2014-01-01 | 北京印刷学院 | Soft magnetic ferrite printing ink and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070479A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Magnetic core material for transformer high in magnetic permeability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104891982A (en) | Rare earth high-magnetic-permeability soft magnetic ferrite and preparation method thereof | |
| CN102161585B (en) | High-frequency wide-temperature low-power-consumption soft magnetic Mn-Zn ferrite and preparation method thereof | |
| CN105097168A (en) | Magnetic core material to which rare earth element is added | |
| CN103951411A (en) | Wide-temperature-range low-power-consumption high-Curie-temperature manganese/zinc ferrite material and preparation method thereof | |
| CN105060874A (en) | Manganese zinc ferrite material for increasing electrical resistivity | |
| CN104817317A (en) | Good-flexibility nonperishable soft-magnetic ferrite material and preparation method thereof | |
| CN101593595A (en) | A kind of low-temperature sintering high performance soft magnetic ferrite material and manufacture method | |
| 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 | |
| CN101241791A (en) | Wide-temperature and low-consumption Mn-Zn soft magnetic ferrite and its production method | |
| CN101913850A (en) | Preparation method of high-magnetic-conductivity low-temperature-sintering Z-shaped hexagonal ferrite material | |
| CN102795850A (en) | Wide-temperature ultralow-loss manganese zinc power ferrite magnetic core | |
| CN104891977A (en) | High frequency fine grain soft magnetic ferrite magnet material and preparation method thereof | |
| CN103725951B (en) | A kind of microwave sintering prepares the method for nano crystal soft magnetic material | |
| CN109320227A (en) | A kind of NiCuZn Ferrite Material and its preparation method and application | |
| CN104177075A (en) | Heat-shock-resistant soft magnetic ferrite material and preparation method thereof | |
| CN104876560A (en) | Thermal-shock-resisting soft magnetic ferrite material and preparation method thereof | |
| CN105399411A (en) | Process for low-temperature sintering of manganese zinc ferrite | |
| CN104575909A (en) | Composite magnetic material for electrical engineering | |
| CN105097172A (en) | Low-magnetic-loss ferrite core material | |
| CN102408227B (en) | Manganese zinc material with high magnetic permeability and sintering method thereof | |
| CN105070454A (en) | Ferrite core material with high mechanical strength | |
| CN108059451A (en) | A kind of high frequency power soft magnetic ferrite and preparation method thereof | |
| CN104817318A (en) | High-frequency high-power soft-magnetic ferrite material and preparation method thereof | |
| CN104129980A (en) | Low-sintering-temperature soft magnetic ferrite material and preparation method thereof | |
| CN105070452A (en) | Low-loss magnetic core material used for electric appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150805 |