CN104091674A - Rare earth ferromagnetic core material - Google Patents
Rare earth ferromagnetic core material Download PDFInfo
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- CN104091674A CN104091674A CN201410241595.XA CN201410241595A CN104091674A CN 104091674 A CN104091674 A CN 104091674A CN 201410241595 A CN201410241595 A CN 201410241595A CN 104091674 A CN104091674 A CN 104091674A
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- mol
- core material
- rare earth
- additive
- ferromagnetic core
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 29
- 239000011162 core material Substances 0.000 title claims abstract description 28
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 17
- 230000005294 ferromagnetic effect Effects 0.000 title claims abstract description 11
- 230000005291 magnetic effect Effects 0.000 claims abstract description 26
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-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
- 239000011701 zinc Substances 0.000 claims abstract description 8
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000001110 calcium chloride Substances 0.000 claims abstract description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 4
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims abstract description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 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 3
- 239000000243 solution Substances 0.000 claims description 19
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 9
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 6
- 239000001099 ammonium carbonate Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 6
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- 229920000161 Locust bean gum Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000711 locust bean gum Substances 0.000 claims description 3
- 235000010420 locust bean gum Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 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 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000975 Carbon steel 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
- JAUOCGQUHUSGIX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn].[Zn] JAUOCGQUHUSGIX-UHFFFAOYSA-N 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
- 238000001514 detection method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000021251 pulses Nutrition 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a rare earth ferromagnetic core material which comprises a main material and an additive, wherein the main material comprises the following components according to the molar ratio: 60-70.5 mol of Fe3O4, 20-30.5 mol of Fe2O3, 12.5-20 mol of manganese oxide, 6.3-10 mol of zinc oxide and 2.3-24 mol of chromium, 0.1-0.2 mol of zinc and 0.01-0.03 mol of cyanuric acid zinc; the additive comprises the following components according to the weight ratio occupied in the ferromagnetic core material: 10-20 ppm of calcium chloride, 30-40 ppm of aluminum oxide, 20-40 ppm of titanium tetrachloride and 800-1000 ppm of rare earth composite magnetic conductive powder. The rare earth ferromagnetic core material has the advantages that the rare earth composite magnetic conductive powder added into the ferromagnetic core material has high magnetic energy product and stable magnetism, the mechanical property of the ferromagnetic core material can be obviously improved, and the porosity can be reduced.
Description
Technical field
The present invention relates generally to oxidate magnetic material and manufactures field, relates in particular to a kind of Rare-earth Iron core material.
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 aluminium zinc zinc permanent magnetic 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 the defect in order to make up prior art, and a kind of Rare-earth Iron core material is provided.
The present invention is achieved by the following technical solutions:
A kind of Rare-earth Iron core material, it comprises major ingredient and additive, and described major ingredient comprises according to mol ratio: the zinc of the manganese oxide of mol Fe2O3, the 12.5-20mol of Fe3O4, the 20-30.5 of 60-70.5 mol, the zinc oxide of 6.3-10mol, 0.1-0.2 mol, 0.01-0.03mol cyanuric acid zinc; Additive comprises according to the weight ratio meter that accounts for described ferromagnetic core material: the rare earth compounded magnetic conductive powder of the calcium chloride of 10-20ppm, the aluminium oxide of 30-40ppm, 20-40ppm titanium tetrachloride, 800-1000ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
(1) preparation of ferrous solution:
Ferric trichloride is joined in 5-10 times of water, after fully dissolving, add polyacrylamide, shitosan, 100-200 rev/min of dispersed with stirring 10-14 minute, obtains ferrous solution;
(2) polyvinylpyrrolidone is joined in lanthanum chloride solution, at 60-80 DEG C, be uniformly mixed 10-20 minute, add ammonium bicarbonate aqueous solution, insulation 3-5h, adds above-mentioned ferrous solution, is stirred to normal temperature, centrifugal dehydration, 200 DEG C of dry 30-40 minute of 100-, calcine 6-10 hour at 300-500 DEG C, obtain described rare earth compounded magnetic conductive powder.
The concentration of described lanthanum chloride solution is 0.8-2mol/L; The concentration of ammonium bicarbonate aqueous solution is that 20-30%, consumption are the 30-40% of lanthanum chloride solution weight;
Described polyvinylpyrrolidone and the mol ratio of lanthanum chloride are 1-2:1;
Described ferric trichloride and the mass ratio of lanthanum chloride are 50-100:2-3;
The mass ratio of described ferric trichloride and polyacrylamide, shitosan is 60-70:1-2:1.
A preparation method for Rare-earth Iron core material, 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 rotary furnace pre-burning, control 400 DEG C of temperature 300-, the pre-burning time is 2-4 hour, sends into grinding pot, adopt the alcohol water blend that abrasive media is 15-20%, being ground to fineness is 40-100 μ m;
(2) additive is sent into grinding pot, adopt the alcohol water blend that abrasive media is 15-20%, be wherein added with and be equivalent to weight of additive 0.8 locust bean gum, being ground to fineness is 40-50 μ m;
(3) above-mentioned each raw material after treatment is mixed, spraying is dry, is pressed into base, and sintering, obtains described Rare-earth Iron core material.
Advantage of the present invention is:
Rare earth compounded magnetic conductive powder good weatherability, magnetic energy product that ferromagnetic core material of the present invention adds are high, and magnetic stability can obviously improve the mechanical performance of ferromagnetic core material, reduces the porosity.
Embodiment
Embodiment 1
A kind of Rare-earth Iron core material, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the manganese oxide of the Fe3O4 of 70.5 mol, 20 mol Fe2O3,20mol, the zinc oxide of 10mol, the zinc of 0.2 mol, 0.03mol cyanuric acid zinc; Additive comprises according to the weight ratio meter that accounts for described ferromagnetic core material: the rare earth compounded magnetic conductive powder of the calcium chloride of 20ppm, the aluminium oxide of 40ppm, 40ppm titanium tetrachloride, 1000ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
(1) preparation of ferrous solution:
Ferric trichloride is joined in 10 times of water, after fully dissolving, add polyacrylamide, shitosan, 100-200 rev/min of dispersed with stirring 14 minutes, obtains ferrous solution;
(2) polyvinylpyrrolidone is joined in lanthanum chloride solution, at 80 DEG C, be uniformly mixed 20 minutes, add ammonium bicarbonate aqueous solution, insulation 5h, adds above-mentioned ferrous solution, is stirred to normal temperature, centrifugal dehydration, 200 DEG C dry 40 minutes, calcine 10 hours at 500 DEG C, obtain described rare earth compounded magnetic conductive powder.
The concentration of described lanthanum chloride solution is 0.8mol/L; The concentration of ammonium bicarbonate aqueous solution is 30%, consumption is 30% of lanthanum chloride solution weight;
Described polyvinylpyrrolidone and the mol ratio of lanthanum chloride are 2:1;
Described ferric trichloride and the mass ratio of lanthanum chloride are 100:3;
The mass ratio of described ferric trichloride and polyacrylamide, shitosan is 70:2:1.
A preparation method for Rare-earth Iron core material, comprises the following steps:
(1) above-mentioned major ingredient is sent into blending tank, 3000 revs/min are stirred mixed 2 hours, send into rotary furnace pre-burning, control 400 DEG C of temperature, and the pre-burning time is 4 hours, sends into grinding pot, adopts the alcohol water blend that abrasive media is 20%, and being ground to fineness is 100 μ m;
(2) additive is sent into grinding pot, adopt the alcohol water blend that abrasive media is 20%, be wherein added with and be equivalent to weight of additive 0.7% locust bean gum, being ground to fineness is 50 μ m;
(3) above-mentioned each raw material after treatment is mixed, spraying is dry, is pressed into base, and sintering, obtains described Rare-earth Iron core material.
Through detection, the basic mechanical design feature index that the product of above-described embodiment 1 gained reaches:
The saturation induction density of magnetic core of the present invention can reach 15000 Gausses, and saturation flux rate density is 474mT, and Curie temperature is higher than 240 DEG C, resistivity 6.3 Ω .m.
Claims (2)
1. a Rare-earth Iron core material, it is characterized in that it comprises major ingredient and additive, described major ingredient comprises according to mol ratio: the zinc of the manganese oxide of mol Fe2O3, the 12.5-20mol of Fe3O4, the 20-30.5 of 60-70.5 mol, the zinc oxide of 6.3-10mol, 0.1-0.2 mol, 0.01-0.03mol cyanuric acid zinc; Additive comprises according to the weight ratio meter that accounts for described ferromagnetic core material: the rare earth compounded magnetic conductive powder of the calcium chloride of 10-20ppm, the aluminium oxide of 30-40ppm, 20-40ppm titanium tetrachloride, 800-1000ppm;
The preparation of described rare earth compounded magnetic conductive powder comprises the following steps:
(1) preparation of ferrous solution:
Ferric trichloride is joined in 5-10 times of water, after fully dissolving, add polyacrylamide, shitosan, 100-200 rev/min of dispersed with stirring 10-14 minute, obtains ferrous solution;
(2) polyvinylpyrrolidone is joined in lanthanum chloride solution, at 60-80 DEG C, be uniformly mixed 10-20 minute, add ammonium bicarbonate aqueous solution, insulation 3-5h, adds above-mentioned ferrous solution, is stirred to normal temperature, centrifugal dehydration, 200 DEG C of dry 30-40 minute of 100-, calcine 6-10 hour at 300-500 DEG C, obtain described rare earth compounded magnetic conductive powder;
The concentration of described lanthanum chloride solution is 0.8-2mol/L; The concentration of ammonium bicarbonate aqueous solution is that 20-30%, consumption are the 30-40% of lanthanum chloride solution weight;
Described polyvinylpyrrolidone and the mol ratio of lanthanum chloride are 1-2:1;
Described ferric trichloride and the mass ratio of lanthanum chloride are 50-100:2-3;
The mass ratio of described ferric trichloride and polyacrylamide, shitosan is 60-70:1-2:1.
2. a preparation method for Rare-earth Iron core material 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 rotary furnace pre-burning, control 400 DEG C of temperature 300-, the pre-burning time is 2-4 hour, sends into grinding pot, adopt the alcohol water blend that abrasive media is 15-20%, being ground to fineness is 60-100 μ m;
(2) additive is sent into grinding pot, adopt the alcohol water blend that abrasive media is 15-20%, be wherein added with the locust bean gum that is equivalent to weight of additive 0.7-1%, being ground to fineness is 40-50 μ m;
(3) above-mentioned each raw material after treatment is mixed, spraying is dry, is pressed into base, and sintering, obtains described Rare-earth Iron core material.
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| CN201410241595.XA CN104091674A (en) | 2014-06-03 | 2014-06-03 | Rare earth ferromagnetic core material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410241595.XA CN104091674A (en) | 2014-06-03 | 2014-06-03 | Rare earth ferromagnetic core material |
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| CN104091674A true CN104091674A (en) | 2014-10-08 |
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| CN201410241595.XA Withdrawn CN104091674A (en) | 2014-06-03 | 2014-06-03 | Rare earth ferromagnetic core material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505224A (en) * | 2014-12-11 | 2015-04-08 | 安徽龙磁科技股份有限公司 | Rare-earth ferrite core material |
Citations (3)
| 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 |
| CN102173767A (en) * | 2011-01-17 | 2011-09-07 | 临沂中瑞电子有限公司 | Magnetic material for photovoltaic inverter |
| CN102976741A (en) * | 2012-11-23 | 2013-03-20 | 天长市昭田磁电科技有限公司 | Preparation method of manganese zinc MnZn soft magnetic ferrite material containing modified nanocarbon |
-
2014
- 2014-06-03 CN CN201410241595.XA patent/CN104091674A/en not_active Withdrawn
Patent Citations (3)
| 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 |
| CN102173767A (en) * | 2011-01-17 | 2011-09-07 | 临沂中瑞电子有限公司 | Magnetic material for photovoltaic inverter |
| CN102976741A (en) * | 2012-11-23 | 2013-03-20 | 天长市昭田磁电科技有限公司 | Preparation method of manganese zinc MnZn soft magnetic ferrite material containing modified nanocarbon |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505224A (en) * | 2014-12-11 | 2015-04-08 | 安徽龙磁科技股份有限公司 | Rare-earth ferrite core material |
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Application publication date: 20141008 |
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