CN104557000A - Anti-interference ferrite magnetic core material - Google Patents
Anti-interference ferrite magnetic core material Download PDFInfo
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- CN104557000A CN104557000A CN201510019891.XA CN201510019891A CN104557000A CN 104557000 A CN104557000 A CN 104557000A CN 201510019891 A CN201510019891 A CN 201510019891A CN 104557000 A CN104557000 A CN 104557000A
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Abstract
The invention discloses an anti-interference ferrite magnetic core material. The anti-interference ferrite magnetic core material is prepared from the following components including a main material and an additive, wherein the main material is prepared from the following components according to the molar ratio: 65-69.4 mol of Fe2O3, 16.6-20.1 mol of manganese oxide, 16.1-18.5 mol of zinc oxide, 1.2-1.5 mol of molybdenum powder, 2.2-2.3 mol of antimony trioxide, 0.4-1 mol of copper powder and 0.01-0.02 mol of chromium-coating carbonyl iron powder; the additive is prepared from the following components, accounting for the weight ratio of the ferrite magnetic core material: 200-600ppm of graphite, 300-500ppm of lanthanum oxide and 100-150ppm of tungsten carbide. According to the anti-interference ferrite magnetic core material disclosed by the invention, the added chromium-coating carbonyl iron powder has high flux ratio under high frequency and ultrahigh frequency, so that the comprehensive properties of finished product are further improved; the anti-interference ferrite magnetic core material has the characteristics of high magnetic energy product, stable magnetism, strong mechanical properties and the like.
Description
Technical field
The present invention relates generally to oxidate magnetic material and manufactures field, particularly relates to a kind of anti-interference 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 anti-interference ferrite core material.
The present invention is achieved by the following technical solutions:
A kind of anti-interference ferrite core material, it comprises major ingredient and additive, and described major ingredient comprises according to mol ratio: the molybdenum powder of the manganese oxide of Fe2O3,16.6-20.1 mol of 65-69.4 mol, the zinc oxide of 16.1-18.5 mol, 1.2-1.5mol, the antimonous oxide of 2.2-2.3 mol, the copper powder of 0.4-1mol, the chromium coating carbonyl iron powder of 0.01-0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the tungsten carbide of the graphite of 200-600ppm, the lanthana of 300-500ppm, 100-150ppm;
The preparation of described chromium coating carbonyl iron powder comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Ammonium dichromate 30-36, hexamethyl cyclotrisiloxane 0.6-1, ester gum 3-4, polyethylene powders 1-2, deionized water 80-100;
Ammonium dichromate is mixed with ester gum, adds the 80-90% of above-mentioned deionized water weight, after stirring, add polyethylene powders, raised temperature is 50-60 DEG C, add hexamethyl cyclotrisiloxane, 70-100 rev/min of dispersed with stirring 10-20 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, obtains silica-alumina gel; Add carbonyl iron dust, drip the ammoniacal liquor that concentration is 20-30%, after dropwising, add premixed liquid under stirring condition, 600-800 rev/min of dispersed with stirring 40-50 minute, dry 20-40 minute at 100-120 DEG C, obtains chromium coating carbonyl iron powder;
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, ammonium dichromate is 200:100-120:5-20:6-10:10-20.
2, a preparation method for anti-interference ferrite core material as claimed in claim 1, is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except chromium coating carbonyl iron powder is sent into blending tank, add the lithium nitrate of major ingredient weight 0.2-0.4%, the sodium molybdate of 0.1-0.2%, 2300-3000 rev/min is stirred mixed 2-4 hour, send into grinding pot, being ground to fineness is 50-70 μm, add chromium coating carbonyl iron powder, the water of major ingredient weight 25-30%, the sodium alginate of 0.5-1%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the zinc stearate of weight of additive 0.3-1%, being ground to fineness is 70-100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described anti-interference ferrite core material.
Advantage of the present invention is:
Take ammonium dichromate as main component in premixed liquid of the present invention, can provide abundant chromium ion, what formed carbonyl iron dust is coated, improves finished product magnetic.
The chromium coating carbonyl iron powder 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
A kind of anti-interference 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 69.4 mol, the manganese oxide of 16.6 mol, 18.5 mol, the molybdenum powder of 1.5mol, the antimonous oxide of 2.3 mol, the copper powder of 0.4mol, the chromium coating carbonyl iron powder of 0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the tungsten carbide of the graphite of 600ppm, the lanthana of 500ppm, 150ppm;
The preparation of described chromium coating carbonyl iron powder comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Ammonium dichromate 36, hexamethyl cyclotrisiloxane 0.6, ester gum 4, polyethylene powders 2, deionized water 100;
Mixed with ester gum by ammonium dichromate, add 90% of above-mentioned deionized water weight, add polyethylene powders after stirring, raised temperature is 60 DEG C, adds hexamethyl cyclotrisiloxane, and 100 revs/min of dispersed with stirring 10-20 minute, obtain described premixed liquid;
(2) be the silester of 20:2:10, trimethylolpropane, aluminium dihydrogen phosphate mixing by mass ratio, be uniformly mixed 20 minutes, add the ethanol that concentration is 60-70% at 70 DEG C, 400 revs/min of dispersed with stirring 10 minutes, obtain silica-alumina gel; Add carbonyl iron dust, drip the ammoniacal liquor that concentration is 30% under stirring condition, after dropwising, add premixed liquid, 800 revs/min of dispersed with stirring 50 minutes, at 120 DEG C dry 40 minutes, obtain chromium coating carbonyl iron powder;
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 30%, aluminium dihydrogen phosphate, ammonium dichromate is 200:120:20:10:20.
A preparation method for anti-interference ferrite core material, is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except chromium coating carbonyl iron powder is sent into blending tank, add the lithium nitrate of major ingredient weight 0.4%, the sodium molybdate of 0.2%, 3000 revs/min are stirred mixed 2 hours, send into grinding pot, being ground to fineness is 70 μm, add chromium coating carbonyl iron powder, the water of major ingredient weight 30%, the sodium alginate of 0.5%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the zinc stearate of weight of additive 0.3%, being ground to fineness is 100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described anti-interference 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 3200 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. an anti-interference ferrite core material, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the molybdenum powder of the manganese oxide of Fe2O3,16.6-20.1 mol of 65-69.4 mol, the zinc oxide of 16.1-18.5 mol, 1.2-1.5mol, the antimonous oxide of 2.2-2.3 mol, the copper powder of 0.4-1mol, the chromium coating carbonyl iron powder of 0.01-0.02 mol; Additive comprises according to the mass ratio range accounting for described ferrite core material: the tungsten carbide of the graphite of 200-600ppm, the lanthana of 300-500ppm, 100-150ppm;
The preparation of described chromium coating carbonyl iron powder comprises the following steps:
(1) preparation of premixed liquid:
Described premixed liquid is made up of the raw material of following weight parts:
Ammonium dichromate 30-36, hexamethyl cyclotrisiloxane 0.6-1, ester gum 3-4, polyethylene powders 1-2, deionized water 80-100;
Ammonium dichromate is mixed with ester gum, adds the 80-90% of above-mentioned deionized water weight, after stirring, add polyethylene powders, raised temperature is 50-60 DEG C, add hexamethyl cyclotrisiloxane, 70-100 rev/min of dispersed with stirring 10-20 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, obtains silica-alumina gel; Add carbonyl iron dust, drip the ammoniacal liquor that concentration is 20-30%, after dropwising, add premixed liquid under stirring condition, 600-800 rev/min of dispersed with stirring 40-50 minute, dry 20-40 minute at 100-120 DEG C, obtains chromium coating carbonyl iron powder;
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, ammonium dichromate is 200:100-120:5-20:6-10:10-20.
2. a preparation method for anti-interference ferrite core material as claimed in claim 1, is characterized in that comprising the following steps:
(1) raw material each in above-mentioned major ingredient except chromium coating carbonyl iron powder is sent into blending tank, add the lithium nitrate of major ingredient weight 0.2-0.4%, the sodium molybdate of 0.1-0.2%, 2300-3000 rev/min is stirred mixed 2-4 hour, send into grinding pot, being ground to fineness is 50-70 μm, add chromium coating carbonyl iron powder, the water of major ingredient weight 25-30%, the sodium alginate of 0.5-1%, high-speed stirred mixes, and obtains slurries;
(2) additive is sent into grinding pot, add the zinc stearate of weight of additive 0.3-1%, being ground to fineness is 70-100 μm;
(3) by each raw material mixing after above-mentioned process, stir, spraying dry, is pressed into base, and sintering, obtains described anti-interference ferrite core material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653274A (en) * | 2016-11-17 | 2017-05-10 | 安徽荣玖智能装备科技有限公司 | Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof |
| CN108010603A (en) * | 2017-12-14 | 2018-05-08 | 安徽工业大学 | A kind of insulating wrapped agent of iron-base soft magnetic alloy powder |
| CN109626980A (en) * | 2018-12-03 | 2019-04-16 | 天长市昭田磁电科技有限公司 | A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide |
| CN109694244A (en) * | 2018-12-04 | 2019-04-30 | 天长市昭田磁电科技有限公司 | A kind of jamproof ferrite core material and preparation method thereof |
Citations (6)
| 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 |
| 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) |
| 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 |
-
2015
- 2015-01-15 CN CN201510019891.XA patent/CN104557000A/en active Pending
Patent Citations (6)
| 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 |
| 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) |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653274A (en) * | 2016-11-17 | 2017-05-10 | 安徽荣玖智能装备科技有限公司 | Powder metallurgy magnetic ring for new energy automobile magnetic water pump with sound-absorbing and noise-reducing function and manufacturing method thereof |
| CN108010603A (en) * | 2017-12-14 | 2018-05-08 | 安徽工业大学 | A kind of insulating wrapped agent of iron-base soft magnetic alloy powder |
| CN108010603B (en) * | 2017-12-14 | 2020-05-01 | 安徽工业大学 | Insulating coating agent for iron-based soft magnetic alloy powder |
| CN109626980A (en) * | 2018-12-03 | 2019-04-16 | 天长市昭田磁电科技有限公司 | A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide |
| CN109694244A (en) * | 2018-12-04 | 2019-04-30 | 天长市昭田磁电科技有限公司 | A kind of jamproof ferrite core material and preparation method thereof |
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