CN104505225A - Stable ferrite core material - Google Patents
Stable ferrite core material Download PDFInfo
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- CN104505225A CN104505225A CN201410754625.7A CN201410754625A CN104505225A CN 104505225 A CN104505225 A CN 104505225A CN 201410754625 A CN201410754625 A CN 201410754625A CN 104505225 A CN104505225 A CN 104505225A
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Abstract
The invention discloses a stable ferrite core material which comprises a main material and an additive, wherein the main material comprises the following components by mol ratio: 63.5-69mol of Fe2O3, 14-20.5mol of manganese oxide, 14.5-20mol of zinc oxide, 0.01-0.02mol of sodium molybdate, 1-2.5mol of nickelous oxide and 0.01-0.02mol of copper-cladded carbonyl powder; the additive comprises the following components in proportion by weight of the ferrite core material: 130-200ppm of zirconium dioxide, 40-60ppm of strontium oxide and 20-30ppm of vanadic oxide. The copper-cladded carbonyl powder added into the ferrite core material has high magnetic flux under high frequency and ultrahigh frequency, and the overall performance of a finished product is further improved. The magnetic core material has the characteristics of high magnetic energy product, stable magnetic performance, high mechanical performance and the like.
Description
Technical field
The present invention relates generally to oxidate magnetic material and manufactures field, particularly relates to one and stablizes ferrite core material.
Background technology
Along with the communication technology and the digitized development of electronic product; new requirement is proposed to soft magnetic ferrite and element; high-performance high permeability magnetic core is widely used in each type telecommunications and information stock, as the fields such as common-mode filter, pulsactor, current transformer, earth leakage protective device, insulating transformer, signal and pulse transformer are widely applied.Present telecommunications industry needs FERRITE CORE to have low core loss and high magnetic permeability, and to meet the microminiaturization of present electric equipment and high efficiency requirement, existing magnetic core is difficult to meet above-mentioned requirements;
Carbonyl iron dust has granularity little (below 10um), active large, the characteristics such as out-of-shape, and carbonyl iron dust has the high magnetic flux rate under high frequency and hyperfrequency, is also widely used in manufacturing magnetic material, in making magicore, have irreplaceable effect.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of and stablizes ferrite core material.
The present invention is achieved by the following technical solutions:
One stablizes ferrite core material, it comprises major ingredient and additive, and described major ingredient comprises according to mol ratio: the sodium molybdate of the manganese oxide of Fe2O3,14-20.5 mol of 63.5-69 mol, the zinc oxide of 14.5-20 mol, 0.01-0.02mol, the nickel oxide of 1-2.5 mol, the copper clad carbonyl iron dust of 0.01-0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the vanadic oxide of the zirconium dioxide of 130-200ppm, the strontium oxide strontia of 40-60ppm, 20-30ppm;
The preparation of described copper clad carbonyl iron dust comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Copper sulphate 30-40, distearyl acid second diester 2-4, ascorbic acid 0.1-0.2, abienol 1-2, butanethiol tin 0.2-0.3, polyacrylamide 1-2, deionized water 100-120;
Mixed with abienol by distearyl acid second diester, add the 20-30% of above-mentioned deionized water weight, rising system temperature is 50-60 DEG C, insulated and stirred 3-4 minute;
Copper sulphate, the mixing of butanethiol tin are added in remaining deionized water, insulated and stirred 4-6 minute at 30-40 DEG C;
By each raw material mixing after above-mentioned process, add ascorbic acid, 100-160 rev/min of dispersed with stirring 5-10 minute, obtains described premixed liquid;
(2) by mass ratio be the silester of 15-20:2-3:6-10, trimethylolpropane, aluminium dihydrogen phosphate mixing, 10-20 minute is uniformly mixed at 60-70 DEG C, add the ethanol that concentration is 60-70%, 300-400 rev/min of dispersed with stirring 7-10 minute, obtain silica-alumina gel, add carbonyl iron dust, the ammoniacal liquor that concentration is 20-30% is dripped under stirring condition, after dropwising, add premixed liquid, 600-800 rev/min of dispersed with stirring 40-50 minute, dry 20-40 minute at 100-120 DEG C, obtains copper clad carbonyl iron dust;
The mass ratio of the ammoniacal liquor that in above-mentioned steps, described concentration is the ethanol of 60-70%, carbonyl iron dust, concentration are 20-30%, aluminium dihydrogen phosphate, copper sulphate is 200:100-120:5-20:6-10:10-15.
A preparation method for stable ferrite core material, is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except copper clad carbonyl iron dust is sent into blending tank, add the cyanuric acid zinc of major ingredient weight 0.3-0.5%, 2600-3000 rev/min is stirred mixed 2-4 hour, send into grinding pot, being ground to fineness is 50-70 μm, add copper clad carbonyl iron dust, the water of major ingredient weight 25-30%, the ethoxylated alkyl ammonium sulfate of 0.4-1%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the pentaerythrite of weight of additive 2.1-3%, being ground to fineness is 60-100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described stable ferrite core material.
Advantage of the present invention is:
Containing abundant copper ion in premixed liquid of the present invention, stable dispersion liquid can be formed after the process such as polyacrylamide, can well carry out coated to carbonyl iron dust, improve product intensity.
The copper clad carbonyl iron dust that ferrite core material of the present invention adds has the high magnetic flux rate under high frequency and hyperfrequency, further improves the combination property of finished product, the features such as it is high that core material of the present invention has magnetic energy product, magnetic stability, and mechanical performance is strong.
Embodiment
Embodiment 1
One stablizes ferrite core material, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the zinc oxide of the Fe2O3 of 63.5 mol, the manganese oxide of 20.5 mol, 14.5-mol, the sodium molybdate of 0.02mol, the nickel oxide of 2.5 mol, the copper clad carbonyl iron dust of 0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the vanadic oxide of the zirconium dioxide of 200ppm, the strontium oxide strontia of 60ppm, 30ppm;
The preparation of described copper clad carbonyl iron dust comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Copper sulphate 40, distearyl acid second diester 2, ascorbic acid 0.2, abienol 1, butanethiol tin 0.3, polyacrylamide 1, deionized water 120;
Mixed with abienol by distearyl acid second diester, add 30% of above-mentioned deionized water weight, raising stable system is 60 DEG C, insulated and stirred 3-4 minute;
Copper sulphate, the mixing of butanethiol tin are added in remaining deionized water, insulated and stirred 6 minutes at 40 DEG C;
By each raw material mixing after above-mentioned process, add ascorbic acid, 160 revs/min of dispersed with stirring 10 minutes, obtain described premixed liquid;
(2) by mass ratio be the silester of 20:3:10, trimethylolpropane, aluminium dihydrogen phosphate mixing, at 70 DEG C, be uniformly mixed 20 minutes, add the ethanol that concentration is 70%, 400 revs/min of dispersed with stirring 10 minutes, obtain silica-alumina gel, add carbonyl iron dust, drip the ammoniacal liquor that concentration is 20-30% under stirring condition, after dropwising, add premixed liquid, 800 revs/min of dispersed with stirring 50 minutes, at 100-120 DEG C dry 40 minutes, obtain copper clad carbonyl iron dust;
In above-mentioned steps, the mass ratio of the ammoniacal liquor that the ethanol that described concentration is 70%, carbonyl iron dust, concentration are 30%, aluminium dihydrogen phosphate, copper sulphate is 200:120:20:10:15.
A preparation method for stable ferrite core material, is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except copper clad carbonyl iron dust is sent into blending tank, add the cyanuric acid zinc of major ingredient weight 0.5%, 3000 revs/min are stirred mixed 2 hours, send into grinding pot, being ground to fineness is 70 μm, add copper clad carbonyl iron dust, the water of major ingredient weight 30%, the ethoxylated alkyl ammonium sulfate of 0.4%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the pentaerythrite of weight of additive 2.1%, being ground to fineness is 60-100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described stable ferrite core material.
Through detecting, the basic mechanical design feature index that the product of above-described embodiment 1 gained reaches:
The initial permeability of magnetic core of the present invention is 3400 μ i;
Maximum magnetic flux core loss (100Kc, 200mT) unit: KW/m
3: 395 (100 ± 2 DEG C);
Curie temperature is higher than 240 DEG C.
Claims (2)
1. a stable ferrite core material, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the sodium molybdate of the manganese oxide of Fe2O3,14-20.5 mol of 63.5-69 mol, the zinc oxide of 14.5-20 mol, 0.01-0.02mol, the nickel oxide of 1-2.5 mol, the copper clad carbonyl iron dust of 0.01-0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the vanadic oxide of the zirconium dioxide of 130-200ppm, the strontium oxide strontia of 40-60ppm, 20-30ppm;
The preparation of described copper clad carbonyl iron dust comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Copper sulphate 30-40, distearyl acid second diester 2-4, ascorbic acid 0.1-0.2, abienol 1-2, butanethiol tin 0.2-0.3, polyacrylamide 1-2, deionized water 100-120;
Mixed with abienol by distearyl acid second diester, add the 20-30% of above-mentioned deionized water weight, rising stable system is 50-60 DEG C, insulated and stirred 3-4 minute;
Copper sulphate, the mixing of butanethiol tin are added in remaining deionized water, insulated and stirred 4-6 minute at 30-40 DEG C;
By each raw material mixing after above-mentioned process, add ascorbic acid, 100-160 rev/min of dispersed with stirring 5-10 minute, obtains described premixed liquid;
(2) by mass ratio be the silester of 15-20:2-3:6-10, trimethylolpropane, aluminium dihydrogen phosphate mixing, 10-20 minute is uniformly mixed at 60-70 DEG C, add the ethanol that concentration is 60-70%, 300-400 rev/min of dispersed with stirring 7-10 minute, obtain silica-alumina gel, add carbonyl iron dust, the ammoniacal liquor that concentration is 20-30% is dripped under stirring condition, after dropwising, add premixed liquid, 600-800 rev/min of dispersed with stirring 40-50 minute, dry 20-40 minute at 100-120 DEG C, obtains copper clad carbonyl iron dust;
The mass ratio of the ammoniacal liquor that in above-mentioned steps, described concentration is the ethanol of 60-70%, carbonyl iron dust, concentration are 20-30%, aluminium dihydrogen phosphate, copper sulphate is 200:100-120:5-20:6-10:10-15.
2. stablize a preparation method for ferrite core material as claimed in claim 1, it is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except copper clad carbonyl iron dust is sent into blending tank, add the cyanuric acid zinc of major ingredient weight 0.3-0.5%, 2600-3000 rev/min is stirred mixed 2-4 hour, send into grinding pot, being ground to fineness is 50-70 μm, add copper clad carbonyl iron dust, the water of major ingredient weight 25-30%, the ethoxylated alkyl ammonium sulfate of 0.4-1%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the pentaerythrite of weight of additive 2.1-3%, being ground to fineness is 60-100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described stable ferrite core material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070449A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Low-temperature sintered iron-based magnetic core material |
| CN115020074A (en) * | 2022-07-21 | 2022-09-06 | 广东力王高新科技股份有限公司 | Energy storage inductor and preparation method thereof |
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| JP2010111545A (en) * | 2008-11-07 | 2010-05-20 | Taiyo Yuden Co Ltd | Ferrite composition and inductor |
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| CN103382110A (en) * | 2013-06-26 | 2013-11-06 | 蚌埠市高华电子有限公司 | Mn-Zn soft-magnetic ferrite material with high magnetic permeability and preparation method thereof |
| CN103601482A (en) * | 2013-11-26 | 2014-02-26 | 北矿磁材科技股份有限公司 | Preparation method of wave-absorbing material for ETC (electronic toll collection) |
| CN104045337A (en) * | 2014-06-24 | 2014-09-17 | 铜陵三佳变压器有限责任公司 | Vanadium-based ferrite core material for transformer |
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2014
- 2014-12-11 CN CN201410754625.7A patent/CN104505225A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1895820A (en) * | 2006-05-19 | 2007-01-17 | 江苏天一超细金属粉末有限公司 | Production of nano-SiO2 for coating carbonyl iron powder |
| CN101712547A (en) * | 2008-09-30 | 2010-05-26 | Tdk株式会社 | NiMnZn-based ferrite |
| JP2010111545A (en) * | 2008-11-07 | 2010-05-20 | Taiyo Yuden Co Ltd | Ferrite composition and inductor |
| CN101834047A (en) * | 2010-05-18 | 2010-09-15 | 深圳顺络电子股份有限公司 | Ferrite material and laminated electronic element made of same |
| CN103382110A (en) * | 2013-06-26 | 2013-11-06 | 蚌埠市高华电子有限公司 | Mn-Zn soft-magnetic ferrite material with high magnetic permeability and preparation method thereof |
| CN103601482A (en) * | 2013-11-26 | 2014-02-26 | 北矿磁材科技股份有限公司 | Preparation method of wave-absorbing material for ETC (electronic toll collection) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105070449A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Low-temperature sintered iron-based magnetic core material |
| CN115020074A (en) * | 2022-07-21 | 2022-09-06 | 广东力王高新科技股份有限公司 | Energy storage inductor and preparation method thereof |
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