CN104064313A - Barium titanate-based ferrite magnetic core material for transformer - Google Patents
Barium titanate-based ferrite magnetic core material for transformer Download PDFInfo
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- CN104064313A CN104064313A CN201410285519.9A CN201410285519A CN104064313A CN 104064313 A CN104064313 A CN 104064313A CN 201410285519 A CN201410285519 A CN 201410285519A CN 104064313 A CN104064313 A CN 104064313A
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- 239000011162 core material Substances 0.000 title claims abstract description 26
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 23
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910002113 barium titanate Inorganic materials 0.000 title claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 14
- 239000004615 ingredient Substances 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 14
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims abstract description 8
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910015900 BF3 Inorganic materials 0.000 claims abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 12
- MTZOKGSUOABQEO-UHFFFAOYSA-L barium(2+);phthalate Chemical compound [Ba+2].[O-]C(=O)C1=CC=CC=C1C([O-])=O MTZOKGSUOABQEO-UHFFFAOYSA-L 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 6
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000003784 tall oil Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 2
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a barium titanate-based ferrite magnetic core material for a transformer. The material comprises major ingredients and additives, wherein the major ingredients comprise 62.0 to 67 moles of Fe2O3, 15.4 to 20 moles of manganese oxide, 10.1 to 13 moles of zinc oxide, 0.1 to 0.2 mole of tungsten trioxide, 0.2 to 0.3 mole of aluminum oxide and 0.01 to 0.02 mole of rare earth composite magnetic-conducting powder according to a molar ratio; the additives comprise 30 to 40 parts per million of boron trifluoride and 40 to 50 parts per million of chromium sesquioxide based on the weight of the ferrite magnetic core material. The rare earth composite magnetic-conducting powder added to the ferrite magnetic core material has a magnetic energy product and stable magnetism, a preparation method is simple, and a finished product has the characteristics of high grain boundary resistivity, low porosity and large and uniform crystal grain sizes.
Description
Technical field
The present invention relates generally to oxidate magnetic material and manufactures field, relates in particular to a kind of barium phthalate base ferrite magnetic core material for transformer.
Background technology
Along with the communication technology and the digitized development of electronic product; soft magnetic ferrite and element have been proposed to new requirement; high-performance high magnetic 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.Telecommunications industry needs FERRITE CORE to have low core loss and high magnetic permeability now, and to meet microminiaturization and the high efficiency requirement of present electric equipment, existing magnetic core is difficult to meet above-mentioned requirements;
Its magnetic energy product of the permanent magnetic material that rare earth makes can reach 150 times of carbon steel, 3～5 times of Al-Ni-Co permanent magnet material, 8～10 times of permanent-magnet ferrite, and temperature coefficient is low, magnetic stability, coercive force is up to 800 kilo-ampere/rice.Be mainly used in the magnetic system of low speed torque motor, actuating motor, transducer, magnetic bearing etc.Nd-Fe-Bo permanent magnet material is third generation rare earth permanent-magnetic material, and its remanent magnetism, coercive force and maximum magnetic energy product are higher than the former, non-friable, has good mechanical performance, and alloy density is low, is conducive to lightness, slimming, the small-sized and subminaturization of magnetic element.
Summary of the invention
The object of the invention is exactly in order to make up the defect of prior art, and a kind of barium phthalate base ferrite magnetic core material for transformer is provided.
The present invention is achieved by the following technical solutions:
A kind of barium phthalate base ferrite magnetic core material for transformer, it comprises major ingredient and additive, and described major ingredient comprises according to mol ratio: the rare earth compounded magnetic conductive powder of the aluminium oxide of the manganese oxide of the Fe2O3 of 62.0-67 mol, 15.4-20 mol, the zinc oxide of 10.1-13 mol, the tungstic acid of 0.1-0.2mol, 0.2-0.3 mol, 0.01-0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the boron trifluoride of 30-40ppm, the chrome green of 40-50ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is comprised of the raw material of following weight parts: barium titanate 92-100, diallylamine 1-2, tall oil 1-2, Span-80 1-2, polytetrafluoroethylene wax 2-3, deionized water 200-300;
Polytetrafluoroethylene wax is heated to 70-80 ℃, adds barium titanate, tall oil, be uniformly mixed 10-20 minute;
Span-80 is mixed with diallylamine, stir;
Each raw material after above-mentioned processing is mixed with each raw material of residue, and 1000-1200 rev/min of dispersed with stirring 10-20 minute, obtains premixed liquid;
The trimethylolpropane that is 1-2:5-7:100 by mass ratio, stearic acid, neodymia mix, at 58-65 ℃, be uniformly mixed 30-40 minute, adding concentration is the acetic acid of 10-20%, 70-100 rev/min of dispersed with stirring 4-6 minute, add ammonium fluoride, be uniformly mixed 20-30 minute, add premixed liquid, 400-500 rev/min of dispersed with stirring 1-2 hour, dry 20-30 minute at 80-100 ℃, send into sintering furnace, sintering 4-6 hour at 300-350 ℃, obtains described rare earth compounded magnetic conductive powder;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 2-3:6-7:1-2;
Described barium titanate and the mass ratio of neodymia are 50-60:1.
A preparation method for the barium phthalate base ferrite magnetic core material of transformer, comprises the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 2500-3000 rev/min is stirred mixed 2-4 hour, sends into grinding pot, and being ground to fineness is 40-50 μ m, adds water, the 1-2% sodium metasilicate of major ingredient weight 25-30%, and high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add dolomol, the 1-2% magnesium hydroxide of weight of additive 0.6-1%, being ground to fineness is 60-80 μ m;
(3) each raw material after above-mentioned processing is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described barium phthalate base ferrite magnetic core material for transformer.
Advantage of the present invention is:
The rare earth compounded magnetic conductive powder magnetic energy product that ferrite magnetic core material of the present invention adds is high, magnetic stability, and preparation method is simple, and it is high that finished product has grain boundary resistance rate, and the porosity is low, mechanical performance is strong, and crystal grain is feature greatly and uniformly.
Embodiment
Embodiment 1
A kind of barium phthalate base ferrite magnetic core material for transformer, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the rare earth compounded magnetic conductive powder of the aluminium oxide of the manganese oxide of the Fe2O3 of 62.0mol, 15.4 mol, the zinc oxide of 13 mol, the tungstic acid of 0.2mol, 0.3 mol, 0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the boron trifluoride of 40ppm, the chrome green of 50ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is comprised of the raw material of following weight parts: barium titanate 100, diallylamine 1, tall oil 1, Span-80 1, polytetrafluoroethylene wax 2, deionized water 300;
Polytetrafluoroethylene wax is heated to 70-80 ℃, adds barium titanate, tall oil, be uniformly mixed 20 minutes;
Span-80 is mixed with diallylamine, stir;
Each raw material after above-mentioned processing is mixed with each raw material of residue, and 1200 revs/min of dispersed with stirring 20 minutes, obtain premixed liquid;
The trimethylolpropane that is 2:7:100 by mass ratio, stearic acid, neodymia mix, at 65 ℃, be uniformly mixed 40 minutes, adding concentration is 20% acetic acid, 100 revs/min of dispersed with stirring 6 minutes, add ammonium fluoride, be uniformly mixed 30 minutes, add premixed liquid, 500 revs/min of dispersed with stirring 2 hours, at 100 ℃, be dried 30 minutes, send into sintering furnace, sintering is 6 hours at 350 ℃, obtains described rare earth compounded magnetic conductive powder;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 2:7:2;
Described barium titanate and the mass ratio of neodymia are 60:1.
A preparation method for the barium phthalate base ferrite magnetic core material of transformer, comprises the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 3000 revs/min are stirred mixed 2 hours, send into grinding pot, and being ground to fineness is 50 μ m, adds water, 1% sodium metasilicate of major ingredient weight 30%, and high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add dolomol, 2% magnesium hydroxide of weight of additive 0.6%, being ground to fineness is 80 μ m;
(3) each raw material after above-mentioned processing is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described barium phthalate base ferrite magnetic core material for transformer.
Through detection, 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 greater than 2700 μ i;
Maximum magnetic flux core loss (100Kc, 200mT) unit: KW/m
3: 377 (100 ± 2 ℃);
Curie temperature is higher than 240 ℃.
Claims (2)
1. the barium phthalate base ferrite magnetic core material for transformer, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the rare earth compounded magnetic conductive powder of the aluminium oxide of the manganese oxide of the Fe2O3 of 62.0-67 mol, 15.4-20 mol, the zinc oxide of 10.1-13 mol, the tungstic acid of 0.1-0.2mol, 0.2-0.3 mol, 0.01-0.02 mol; Additive comprises according to the weight ratio meter that accounts for described ferrite magnetic core material: the boron trifluoride of 30-40ppm, the chrome green of 40-50ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
The preparation of premixed liquid:
Described premixed liquid is comprised of the raw material of following weight parts: barium titanate 92-100, diallylamine 1-2, tall oil 1-2, Span-80 1-2, polytetrafluoroethylene wax 2-3, deionized water 200-300;
Polytetrafluoroethylene wax is heated to 70-80 ℃, adds barium titanate, tall oil, be uniformly mixed 10-20 minute;
Span-80 is mixed with diallylamine, stir;
Each raw material after above-mentioned processing is mixed with each raw material of residue, and 1000-1200 rev/min of dispersed with stirring 10-20 minute, obtains premixed liquid;
The trimethylolpropane that is 1-2:5-7:100 by mass ratio, stearic acid, neodymia mix, at 58-65 ℃, be uniformly mixed 30-40 minute, adding concentration is the acetic acid of 10-20%, 70-100 rev/min of dispersed with stirring 4-6 minute, add ammonium fluoride, be uniformly mixed 20-30 minute, add premixed liquid, 400-500 rev/min of dispersed with stirring 1-2 hour, dry 20-30 minute at 80-100 ℃, send into sintering furnace, sintering 4-6 hour at 300-350 ℃, obtains described rare earth compounded magnetic conductive powder;
The mol ratio of described neodymia, acetic acid, ammonium fluoride is 2-3:6-7:1-2;
Described barium titanate and the mass ratio of neodymia are 50-60:1.
2. a preparation method for the barium phthalate base ferrite magnetic core material for transformer as claimed in claim 1, is characterized in that comprising the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 2500-3000 rev/min is stirred mixed 2-4 hour, sends into grinding pot, and being ground to fineness is 40-50 μ m, adds water, the 1-2% sodium metasilicate of major ingredient weight 25-30%, and high-speed stirred is mixed, and obtains slurries;
(2) additive is sent into grinding pot, add dolomol, the 1-2% magnesium hydroxide of weight of additive 0.6-1%, being ground to fineness is 60-80 μ m;
(3) each raw material after above-mentioned processing is mixed, stir, spraying is dry, is pressed into base, and sintering obtains the described barium phthalate base ferrite magnetic core material for transformer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285519.9A CN104064313A (en) | 2014-06-24 | 2014-06-24 | Barium titanate-based ferrite magnetic core material for transformer |
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| CN201410285519.9A CN104064313A (en) | 2014-06-24 | 2014-06-24 | Barium titanate-based ferrite magnetic core material for transformer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1455938A (en) * | 2000-12-15 | 2003-11-12 | 住友特殊金属株式会社 | Permanent magnet and method for preparation thereof |
| CN1677579A (en) * | 2004-03-31 | 2005-10-05 | 广东风华高新科技集团有限公司 | Wide-band manganese-zinc series high-magnetic-conductivity soft magnet oxysome material |
| JP2009012999A (en) * | 2007-07-03 | 2009-01-22 | Jfe Ferrite Corp | Mn-Zn-Co ferrite |
| CN102795850A (en) * | 2012-09-13 | 2012-11-28 | 重庆材料研究院 | Wide-temperature ultralow-loss manganese zinc power ferrite magnetic core |
| CN103496963A (en) * | 2013-09-06 | 2014-01-08 | 江门安磁电子有限公司 | Ni-free MnZn ferrite magnetic core with double characteristics and manufacture method |
-
2014
- 2014-06-24 CN CN201410285519.9A patent/CN104064313A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1455938A (en) * | 2000-12-15 | 2003-11-12 | 住友特殊金属株式会社 | Permanent magnet and method for preparation thereof |
| CN1677579A (en) * | 2004-03-31 | 2005-10-05 | 广东风华高新科技集团有限公司 | Wide-band manganese-zinc series high-magnetic-conductivity soft magnet oxysome material |
| JP2009012999A (en) * | 2007-07-03 | 2009-01-22 | Jfe Ferrite Corp | Mn-Zn-Co ferrite |
| CN102795850A (en) * | 2012-09-13 | 2012-11-28 | 重庆材料研究院 | Wide-temperature ultralow-loss manganese zinc power ferrite magnetic core |
| CN103496963A (en) * | 2013-09-06 | 2014-01-08 | 江门安磁电子有限公司 | Ni-free MnZn ferrite magnetic core with double characteristics and manufacture method |
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Application publication date: 20140924 |