CN105976968A - Anti-interference ferrite magnetic core material - Google Patents
Anti-interference ferrite magnetic core material Download PDFInfo
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- CN105976968A CN105976968A CN201610149044.XA CN201610149044A CN105976968A CN 105976968 A CN105976968 A CN 105976968A CN 201610149044 A CN201610149044 A CN 201610149044A CN 105976968 A CN105976968 A CN 105976968A
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- 239000011162 core material Substances 0.000 title claims abstract description 35
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 28
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 20
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 7
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 7
- 239000000194 fatty acid Substances 0.000 claims abstract description 7
- 229930195729 fatty acid Natural products 0.000 claims abstract description 7
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 7
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 7
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims abstract description 7
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001947 lithium oxide Inorganic materials 0.000 claims abstract description 7
- 239000004200 microcrystalline wax Substances 0.000 claims abstract description 7
- 235000019808 microcrystalline wax Nutrition 0.000 claims abstract description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000783 alginic acid Substances 0.000 claims description 6
- 229920000615 alginic acid Polymers 0.000 claims description 6
- 229960001126 alginic acid Drugs 0.000 claims description 6
- 235000010443 alginic acid Nutrition 0.000 claims description 6
- -1 alginic acid diol ester Chemical class 0.000 claims description 6
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical compound O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 abstract 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 abstract 1
- HDSBZMRLPLPFLQ-UHFFFAOYSA-N Propylene glycol alginate Chemical compound OC1C(O)C(OC)OC(C(O)=O)C1OC1C(O)C(O)C(C)C(C(=O)OCC(C)O)O1 HDSBZMRLPLPFLQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000005670 electromagnetic radiation Effects 0.000 abstract 1
- 229920006122 polyamide resin Polymers 0.000 abstract 1
- 235000010409 propane-1,2-diol alginate Nutrition 0.000 abstract 1
- 239000000770 propane-1,2-diol alginate Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920003188 Nylon 3 Polymers 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
- H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses an anti-interference ferrite magnetic core material. The anti-interference ferrite magnetic core material is prepared from the following raw materials in parts by weight: 42-46 parts of iron sesquioxide, 12-16 parts of ferrocene, 24-27 parts of manganese oxide, 16-20 parts of zinc oxide, 13-15 parts of lithium oxide, 2.5-3 parts of aluminium trihydrate, 0.3-0.4 part of organic silicon resin, 0.4-0.5 part of propylene glycol phenyl ether, 0.3-0.4 part of propylene glycol alginate, 0.3-0.4 part of fatty acid amide, 1-1.5 parts of microcrystalline wax, 2-2.5 parts of a silane coupling agent kh550, 3-3.3 parts of polyamide resin, 2-2.3 parts of sodium silicate, 1.4-2 parts of silica sol, 1.5-2 parts of polyvinyl alcohol, 1.7-2 parts of graphene oxide, 1.5-2 parts of magnetic carbon powder, 1.7-2 parts of nanometer lanthanum oxide, and proper deionized water. The anti-interference ferrite magnetic core material provided by the invention has good magnetic performance and particularly has good electromagnetic radiation protection performance; and furthermore, the anti-interference ferrite magnetic core material is simple in preparation process, and worthy of being popularized.
Description
Technical field
The present invention relates to Ferrite Material technical field, particularly relate to a kind of anti-interference ferrite core material.
Background technology
Along with developing rapidly of electronic information technology, metal magnetic powder core is widely used in the fields such as line filter, outputting inductance and Switching Power Supply, metal magnetic powder core be magnetic powder particles is mixed homogeneously with non magnetic dielectric after a compressing class soft magnetic materials, be broadly divided into ferrocart core, ferrum silica magnetic particle core, high magnetic flux powder core, Fe-Si-Al magnetic core, ferrum tantnickel powder core, ferrum nickel molybdenum powder core and amorphous nano-crystalline powder core.After being mixed with dielectric by ferromagnetic powder granule, carry out suppressing and a kind of soft-magnetic composite material of obtaining is referred to as metal magnetic powder core.Ferromagnetic powder granule after insulating wrapped at its Surface Creation one layer of dielectric insulating film, can effectively improve the resistivity of powder core, reduce eddy-current loss, therefore under metal magnetic powder core is applicable to higher frequency, metal magnetic powder core has become as the ingredient that soft magnetic materials is important, there is the advantages such as higher saturation induction density, good frequency characteristic and permanent magnetic conduction due to it, in modern science and technology field, powder core is widely used in the equipment such as telecommunications, radar, on and off switch as inductance filter, choking-winding.Along with communication technology and the digitized development of electronic product, soft magnetic ferrite and element are proposed new requirement, telecommunications industry needs FERRITE CORE to have low core loss and high magnetic permeability now, to meet the miniaturization of present electric equipment and high efficiency requirement, existing magnetic core is difficult to meet above-mentioned requirements, at present, continuous upgrading along with circuit, electronic component in circuit requires that electric current is higher, and after needing pcrmeability height, saturation flux density height, extra current bias field, pcrmeability declines little magnetics.Metallic magnet opposing ferrite magnet has higher saturation flux density, and metal material is taken as the material of main part of magnet as new use object.But miniaturization, the lightening development along with electronic product, it is desirable to electronic component miniaturization the most therewith, lightening.However as the miniaturization of magnet, in metal material often there is the problem that insulation impedance is low, mechanical strength is low in the material of high magnetic permeability.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that 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 is made up of the raw material of following weight portion: iron sesquioxide 42-46, ferrocene 12-16, manganese oxide 24-27, zinc oxide 16-20, lithium oxide 13-15, aluminum trihydrate 2.5-3, organic siliconresin 0.3-0.4, propylene glycol phenylate 0.4-0.5, alginic acid diol ester 0.3-0.4, fatty acid amide 0.3-0.4, microcrystalline wax 1-1.5, silane coupler kh5502-2.5, polyamide 3-3.3, sodium silicate 2-2.3, Ludox 1.4-2, polyvinyl alcohol 1.5-2, graphene oxide 1.7-2, magnetic carbon powder 1.5-2, nano lanthanum oxide 1.7-2, deionized water is appropriate.
Described a kind of anti-interference ferrite core material, is made up of step in detail below:
(1) iron sesquioxide, ferrocene, manganese oxide, zinc oxide and lithium oxide are mixed, it is then added in ball mill wear into fine powder, silane coupler kh550 deionized water is diluted to the solution that solubility is 4-6%, add organic siliconresin, fatty acid amide, propylene glycol phenylate and alginic acid diol ester mix homogeneously, magnetic carbon powder and nano lanthanum oxide is added with 600-800 rev/min of lower dispersed with stirring 6-10min when being heated to 50-60 DEG C, standby after cooling；
(2) nanometer of above-mentioned preparation is mixed liquid to spray in fine powder, then fine powder is placed in baking oven at 110-120 DEG C baking 30-45min, at 230-250 DEG C, then dry 7-10min, be then cooled to room temperature；
(3) it is heated to melting by polyamide; add aluminum trihydrate, graphene oxide and microcrystalline wax to stir; in the product mixing and stirring prepared with step (2); it is added in comminutor make 100-200 mesh afterwards and accounts for 30Wt%; 200-300 mesh accounts for 40Wt%; 300-400 mesh accounts for 20Wt%, and more than 400 mesh accounting for the ratio of 10Wt%, to carry out particle diameter proportioning standby；
(4) sodium silicate is added the deionized water dilution of 10 times amount; add Ludox, polyvinyl alcohol stirs, and granule prepared by step (3) is added thereto evacuation and makes vacuum exceed-0.9 atmospheric pressure, keep 3 minutes; rear taking-up; dry, put into mould, be orientated in magnetic field and be pressed into base substrate under 1.5-2GPa; sinter at 1010-1200 DEG C under argon shield; insulation 2-2.5h, is tempered 1-1.5h at 700-750 DEG C, the most available.
nullThe invention have the advantage that metal magnetic mixed grinding is become fine powder by the present invention，Make to be uniformly dispersed between composition，Stable performance，And itself is had anticorrosive property、High temperature oxidation resistance and the lanthana of heat stability and magnetic carbon powder are coated in the mechanical property that core material is greatly improved、Shock resistance、High tenacity and adhesion strength，Insulation adhesive material is used to be coated on its surface again，Strengthen the bond strength between granule，And intercept intergranular eddy current，Reduce the eddy-current loss of core material，Good stability of the dimension when using different particle diameter proportionings to make sintering，Volume shrinkage is little，Dimensioning accuracy is high，Finally make further insulation processing，Insulating properties is improve in the case of not changing pcrmeability，Reduce core loss，The anti-interference ferrite material that the present invention provides both had possessed good magnetic property，Possesses again good electromagnetism shielding property，And processing technology is simple，There is good actual application value，It is worthy to be popularized.
Detailed description of the invention
A kind of anti-interference ferrite core material, is made up of the raw material of following weight portion (kilogram): iron sesquioxide 42, ferrocene 12, manganese oxide 24, zinc oxide 16, lithium oxide 13, aluminum trihydrate 2.5, organic siliconresin 0.3, propylene glycol phenylate 0.4, alginic acid diol ester 0.3, fatty acid amide 0.3, microcrystalline wax 1, silane coupler kh5502, polyamide 3, sodium silicate 2, Ludox 1.4, polyvinyl alcohol 1.5, graphene oxide 1.7, magnetic carbon powder 1.5, nano lanthanum oxide 1.7, deionized water are appropriate.
Described a kind of anti-interference ferrite core material, is made up of step in detail below:
(1) iron sesquioxide, ferrocene, manganese oxide, zinc oxide and lithium oxide are mixed, it is then added in ball mill wear into fine powder, silane coupler kh550 deionized water is diluted to the solution that solubility is 4%, add organic siliconresin, fatty acid amide, propylene glycol phenylate and alginic acid diol ester mix homogeneously, magnetic carbon powder and nano lanthanum oxide is added with 600 revs/min of lower dispersed with stirring 6min when being heated to 50 DEG C, standby after cooling；
(2) nanometer of above-mentioned preparation is mixed liquid to spray in fine powder, then fine powder is placed in baking oven at 110 DEG C baking 30min, at 230 DEG C, then dry 7min, be then cooled to room temperature；
(3) it is heated to melting by polyamide; add aluminum trihydrate, graphene oxide and microcrystalline wax to stir; in the product mixing and stirring prepared with step (2); it is added in comminutor make 100 mesh afterwards and accounts for 30Wt%; 200 mesh account for 40Wt%; 300 mesh account for 20Wt%, and more than 400 mesh accounting for the ratio of 10Wt%, to carry out particle diameter proportioning standby；
(4) sodium silicate is added the deionized water dilution of 10 times amount; add Ludox, polyvinyl alcohol stirs, and granule prepared by step (3) is added thereto evacuation and makes vacuum exceed an atmospheric pressure, keep 3 minutes; rear taking-up; dry, put into mould, be orientated in magnetic field and be pressed into base substrate under 1.5GPa; sinter at 1010 DEG C under argon shield; insulation 2h, is tempered 1h at 700 DEG C, the most available.
The soft magnetic ferrite prepared according to specific embodiment, carries out performance test to it, and result is as follows:
Tensile strength is 153N, and the intensity of magnetization is 265Am2/kg, maximum magnetic flux core loss (100Kc, 200mT): 304KW/m3, and saturation induction density is 1.0T, and coercivity is 7.7Oe, and Curie temperature is ＞ 240 DEG C.
Claims (2)
1. an anti-interference ferrite core material, it is characterized in that, it is made up of the raw material of following weight portion: iron sesquioxide 42-46, ferrocene 12-16, manganese oxide 24-27, zinc oxide 16-20, lithium oxide 13-15, aluminum trihydrate 2.5-3, organic siliconresin 0.3-0.4, propylene glycol phenylate 0.4-0.5, alginic acid diol ester 0.3-0.4, fatty acid amide 0.3-0.4, microcrystalline wax 1-1.5, silane coupler kh5502-2.5, polyamide 3-3.3, sodium silicate 2-2.3, Ludox 1.4-2, polyvinyl alcohol 1.5-2, graphene oxide 1.7-2, magnetic carbon powder 1.5-2, nano lanthanum oxide 1.7-2, deionized water is appropriate.
A kind of anti-interference ferrite core material, it is characterised in that be made up of step in detail below:
(1) iron sesquioxide, ferrocene, manganese oxide, zinc oxide and lithium oxide are mixed, it is then added in ball mill wear into fine powder, silane coupler kh550 deionized water is diluted to the solution that solubility is 4-6%, add organic siliconresin, fatty acid amide, propylene glycol phenylate and alginic acid diol ester mix homogeneously, magnetic carbon powder and nano lanthanum oxide is added with 600-800 rev/min of lower dispersed with stirring 6-10min when being heated to 50-60 DEG C, standby after cooling；
(2) nanometer of above-mentioned preparation is mixed liquid to spray in fine powder, then fine powder is placed in baking oven at 110-120 DEG C baking 30-45min, at 230-250 DEG C, then dry 7-10min, be then cooled to room temperature；
(3) it is heated to melting by polyamide; add aluminum trihydrate, graphene oxide and microcrystalline wax to stir; in the product mixing and stirring prepared with step (2); it is added in comminutor make 100-200 mesh afterwards and accounts for 30Wt%; 200-300 mesh accounts for 40Wt%; 300-400 mesh accounts for 20Wt%, and more than 400 mesh accounting for the ratio of 10Wt%, to carry out particle diameter proportioning standby；
(4) sodium silicate is added the deionized water dilution of 10 times amount; add Ludox, polyvinyl alcohol stirs, and granule prepared by step (3) is added thereto evacuation and makes vacuum exceed-0.9 atmospheric pressure, keep 3 minutes; rear taking-up; dry, put into mould, be orientated in magnetic field and be pressed into base substrate under 1.5-2GPa; sinter at 1010-1200 DEG C under argon shield; insulation 2-2.5h, is tempered 1-1.5h at 700-750 DEG C, the most available.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610149044.XA CN105976968A (en) | 2016-03-16 | 2016-03-16 | Anti-interference ferrite magnetic core material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610149044.XA CN105976968A (en) | 2016-03-16 | 2016-03-16 | Anti-interference ferrite magnetic core material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020172986A1 (en) * | 2019-02-26 | 2020-09-03 | 南通华兴磁性材料有限公司 | Method of preparing manganese zinc ferrite with high impedance and high magnetic performance |
| CN117430373A (en) * | 2023-12-21 | 2024-01-23 | 朗峰新材料启东有限公司 | Anti-interference nanocrystalline composite magnetic core material and preparation method thereof |
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| CN105097168A (en) * | 2015-08-10 | 2015-11-25 | 天长市昭田磁电科技有限公司 | Magnetic core material to which rare earth element is added |
Cited By (4)
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| 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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