CN104891982A - Rare earth high-magnetic-permeability soft magnetic ferrite and preparation method thereof - Google Patents
Rare earth high-magnetic-permeability soft magnetic ferrite and preparation method thereof Download PDFInfo
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- CN104891982A CN104891982A CN201510199440.9A CN201510199440A CN104891982A CN 104891982 A CN104891982 A CN 104891982A CN 201510199440 A CN201510199440 A CN 201510199440A CN 104891982 A CN104891982 A CN 104891982A
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Abstract
The present invention discloses a rare earth high-magnetic-permeability soft magnetic ferrite and a preparation method thereof, wherein the rare earth high-magnetic-permeability soft magnetic ferrite is prepared from the following raw materials by weight: 55-65 parts of ferroferric oxide, 1-13 parts of zinc oxide, 15-18 parts of manganese oxide, 4-8 parts of copper oxide, 0.4-0.6 part of lanthanum oxide, 0.2-0.6 part of tantalum pentoxide, 0.3-0.4 part of carbonyl iron powder, 6-10 parts of chlorinated polyethylene, 0.4-1 part of carbon powder, 1-2 parts of sodium lignin sulfonate, 6-9 parts of an organosilicon resin, and a proper amount of deionized water. The rare earth high-magnetic-permeability soft magnetic ferrite of the present invention has characteristics of high magnetic-permeability, low loss, easy operation, low environmental pollution, cost reducing, high qualification rate, and stable quality.
Description
Technical field
The present invention relates to soft magnetic ferrite field, be specifically related to a kind of Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof.
Background technology
Ferrite is that one has ferromagnetic composite oxide of metal, with regard to its electromagnetic property, ferritic resistivity is more much bigger than metal, alloy magnetic material, and also has higher dielectric properties, has higher magnetic permeability when its magnetic property also shows high frequency.Thus, ferrite has become the broad-spectrum nonmetal magnetic material in high frequency light current field.The ferromagnetic oxide powder that magneticflux-density is high, magnetic core realize being used as the products such as inducer, wave filter, pulse transformer in the electronicss such as program control communication, digital technique, network communication colour TV to make its miniaturization, the requisite electronic material of lightweight, improve constantly the magneticflux-density in magneticsubstance, be engaged in the engineering technical personnel of this specialty and the pursuit of production firm always, the performance index of current Ferrite Material are as all unsatisfactory in loss, frequency response characteristic, Curie temperature etc.
Summary of the invention
The object of this invention is to provide a kind of Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof, is made up of the raw material of following weight part: Z 250 55-65, zinc oxide 1-13, manganese oxide 15-18, cupric oxide 4-8, lanthanum trioxide 0.4-0.6, tantalum pentoxide 0.2-0.6, carbonyl iron dust 0.3-0.4, chlorinatedpolyethylene 6-10, carbon dust 0.4-1, sodium lignosulfonate 1-2, silicone resin 6-9, deionized water are appropriate;
A kind of Rare-earth soft-magnetic ferrite with high magnetic permeability of the present invention and preparation method thereof, be made up of following concrete steps:
(1) Z 250, manganese oxide, zinc oxide, cupric oxide, carbon dust 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 at 800-1000 ° of C, burn-in time is 2-3h;
(3) powder of step (2) gained is added lanthanum trioxide, carbonyl iron dust and tantalum pentoxide in mass ratio, and carry out second time ball milling, size controlling is at 1.5-3 micron;
(4) hexamethyldisiloxane of silicone resin with 3-6 times of weight part diluted, be added in silicone resin solution by the powder of step (3) gained, through mechanical stirring mixing, after the drying of box-type drying stove, it is even to add all the other remaining composition dispersed with stirring;
(5) powder step (4) obtained injects mould, uses heat pressing forming machines, is pressed into solid shape.
Advantage of the present invention is: the present invention adds carbon dust and carries out pre-burning, add the surfaceness of powder, increase the contact area with silicone resin, thus enhance the compactness of base substrate, planarization and insulativity, reduce loss, adopt hot-forming technique, simple to operate, convenient, reduce the waste of resource and meet the demand of conventional electromagnetism interference, the carbonyl iron dust added enhances additive and ferritic consistency, and improve the magnetic of material, the lanthanum trioxide added has and enters crystal crystal boundary, improve resistivity, make the effect that specific loss coefficient reduces, the tantalum pentoxide added has the effect encouraging grain growing, be conducive to improving magnetic permeability, it is high that soft magnetic ferrite of the present invention has magnetic permeability, loss is little, simple to operate, environmental pollution is little, cost reduces, qualification rate is high, steady quality.
Embodiment
Below by specific examples, the present invention is described in detail.
A kind of Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof, is made up of the raw material of following weight part (kilogram): Z 250 61, zinc oxide 11, manganese oxide 18, cupric oxide 6, lanthanum trioxide 0.4, tantalum pentoxide 0.5, carbonyl iron dust 0.3, chlorinatedpolyethylene 8, carbon dust 0.9, sodium lignosulfonate 1, silicone resin 8, deionized water are appropriate;
A kind of Rare-earth soft-magnetic ferrite with high magnetic permeability of the present invention and preparation method thereof, be made up of following concrete steps:
(1) Z 250, manganese oxide, zinc oxide, cupric oxide, carbon dust 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 at 1000 ° of C, burn-in time is 2-3h;
(3) powder of step (2) gained is added lanthanum trioxide, carbonyl iron dust and tantalum pentoxide in mass ratio, and carry out second time ball milling, size controlling is at 2 microns;
(4) hexamethyldisiloxane of silicone resin with 5 times of weight parts diluted, be added in silicone resin solution by the powder of step (3) gained, through mechanical stirring mixing, after the drying of box-type drying stove, it is even to add all the other remaining composition dispersed with stirring;
(5) powder step (4) obtained injects mould, uses heat pressing forming machines, is pressed into solid shape.
The performance data of the soft magnetic ferrite obtained by above-described embodiment:
Initial permeability (25 ± 3 ° of C): 6430 ± 25%;
Power loss (100Kc, 200mT, KW/m3): 573(25 ± 2 ° C), 263(100 ± 2 ° C);
Saturation magnetic flux density (mT, 100 ° of C): 441;
Curie temperature (° C) > 251.
Claims (2)
1. Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof, it is characterized in that, be made up of the raw material of following weight part: Z 250 55-65, zinc oxide 1-13, manganese oxide 15-18, cupric oxide 4-8, lanthanum trioxide 0.4-0.6, tantalum pentoxide 0.2-0.6, carbonyl iron dust 0.3-0.4, chlorinatedpolyethylene 6-10, carbon dust 0.4-1, sodium lignosulfonate 1-2, silicone resin 6-9, deionized water are appropriate.
2. a kind of Rare-earth soft-magnetic ferrite with high magnetic permeability and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:
(1) Z 250, manganese oxide, zinc oxide, cupric oxide, carbon dust 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 at 800-1000 ° of C, burn-in time is 2-3h;
(3) powder of step (2) gained is added lanthanum trioxide, carbonyl iron dust and tantalum pentoxide in mass ratio, and carry out second time ball milling, size controlling is at 1.5-3 micron;
(4) hexamethyldisiloxane of silicone resin with 3-6 times of weight part diluted, be added in silicone resin solution by the powder of step (3) gained, through mechanical stirring mixing, after the drying of box-type drying stove, it is even to add all the other remaining composition dispersed with stirring;
(5) powder step (4) obtained injects mould, uses heat pressing forming machines, is pressed into solid shape.
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Cited By (20)
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|---|---|---|---|---|
| CN105761864A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-magnetic-energy-product ferrite core material |
| CN105761862A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Ferrite magnetic core material with low magnetic loss |
| CN105761869A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-mechanical-strength core material |
| CN105761867A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Ferrite magnetic core material for vehicle |
| CN105761868A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Multifunctional high-frequency tin-ferrite magnetic core material |
| CN105761865A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-frequency low-loss soft magnet ferrite core material |
| CN105761863A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Soft magnet core material with high saturation magnetic flux transmission performance |
| CN105788796A (en) * | 2016-04-13 | 2016-07-20 | 天长市天豪制冷设备厂 | Magnetic core material with high magnetic conductivity |
| CN105884343A (en) * | 2016-04-13 | 2016-08-24 | 天长市天豪制冷设备厂 | Magnetostrictive material with high initial permeability |
| CN105976967A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Iron-silicon alloy magnetic powder core material having high direct-current superposition property |
| CN105976968A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Anti-interference ferrite magnetic core material |
| CN105976969A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | High-strength magnetic core material |
| CN105976966A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Stabilized ferrite magnetic core material |
| CN105976970A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Ferrite magnetic core material for transformer |
| CN105976962A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | High-impedance magnetic core material |
| CN105967671A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | A high-performance ferrite core material |
| CN105976965A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Ferrite magnetic core material for communication |
| CN105976964A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Magnetic core material having good heat dissipation performance |
| CN105976963A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Broadband high-conductivity ferrite magnetic core material |
| CN112430081A (en) * | 2020-11-25 | 2021-03-02 | 南通冠优达磁业有限公司 | High-saturation-flux-density soft magnetic ferrite material and preparation method thereof |
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Cited By (20)
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| CN105967671A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | A high-performance ferrite core material |
| CN105976970A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Ferrite magnetic core material for transformer |
| CN105976963A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Broadband high-conductivity ferrite magnetic core material |
| CN105976967A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Iron-silicon alloy magnetic powder core material having high direct-current superposition property |
| CN105976965A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Ferrite magnetic core material for communication |
| CN105976962A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | High-impedance magnetic core material |
| CN105976966A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Stabilized ferrite magnetic core material |
| CN105976968A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Anti-interference ferrite magnetic core material |
| CN105976969A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | High-strength magnetic core material |
| CN105976964A (en) * | 2016-03-16 | 2016-09-28 | 天长市昭田磁电科技有限公司 | Magnetic core material having good heat dissipation performance |
| CN105788796A (en) * | 2016-04-13 | 2016-07-20 | 天长市天豪制冷设备厂 | Magnetic core material with high magnetic conductivity |
| CN105761863A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Soft magnet core material with high saturation magnetic flux transmission performance |
| CN105761862A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Ferrite magnetic core material with low magnetic loss |
| CN105761865A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-frequency low-loss soft magnet ferrite core material |
| CN105761864A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-magnetic-energy-product ferrite core material |
| CN105761868A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Multifunctional high-frequency tin-ferrite magnetic core material |
| CN105761867A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | Ferrite magnetic core material for vehicle |
| CN105761869A (en) * | 2016-04-13 | 2016-07-13 | 天长市天豪制冷设备厂 | High-mechanical-strength core material |
| CN105884343A (en) * | 2016-04-13 | 2016-08-24 | 天长市天豪制冷设备厂 | Magnetostrictive material with high initial permeability |
| CN112430081A (en) * | 2020-11-25 | 2021-03-02 | 南通冠优达磁业有限公司 | High-saturation-flux-density soft magnetic ferrite material and preparation method thereof |
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