CN110415962A - A kind of composite material and preparation method thereof for high frequency field inductance - Google Patents
A kind of composite material and preparation method thereof for high frequency field inductance Download PDFInfo
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- CN110415962A CN110415962A CN201910701968.XA CN201910701968A CN110415962A CN 110415962 A CN110415962 A CN 110415962A CN 201910701968 A CN201910701968 A CN 201910701968A CN 110415962 A CN110415962 A CN 110415962A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
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Abstract
A kind of composite material and preparation method thereof for high frequency field inductance, the invention belongs to passive electronic component fields, to solve the problems, such as that single soft magnetic materials can not meet demand due to being limited by its raw material types and preparation process, the present invention provides a kind of composite material and preparation method thereof for high frequency field inductance: A, selecting soft-magnetic alloy powder original powder material as needed；B, the soft-magnetic alloy powder of D50 different-grain diameter is screened out by vibrating screen or winnowing machine；C, powder is mixed according to a certain ratio；D, the magnetic powder of 100 parts by weight is added after in batches mixing the diluent of the phosphoric acid of 0.1~0.6 parts by weight, the phosphate of 0.1~1.0 parts by weight, the molybdate of 0.1~1.0 parts by weight, the coupling agent of 0.01~1.55 parts by weight, the epoxylite of 0.5~5.5 parts by weight, 1.0~6.0 parts by weight；E, it mixes and is taken out after fully reacting and toasted.Electronic component prepared by the present invention has excellent body insulation, high temperature resistant, high magnetic permeability, high saturation, high efficiency feature.
Description
Technical field
The invention belongs to passive electronic component field, in particular to a kind of composite material for high frequency field inductance
Preparation process.
Background technique
Develop recently as electronic device towards miniaturization, high frequency, high efficiency etc., to related soft magnetic materials
Performance has higher requirement.However, single soft magnetic materials is by its raw material types and preparation process due to being limited, by
Gradually can not meet the demand of increasingly developed related device: ferrite has many advantages, such as high resistivity, but its Bs is lower, saturation is special
Property is poor；Carbonyl iron dust has the advantages such as high magnetic permeability, easily molded, but its resistivity is lower, high frequency eddy current losses are big, iron sial
It is that alloy has many advantages, such as high magnetic permeability, high resistivity, however its saturated characteristic is poor and brittleness is big, and amorphous nano-crystalline class is soft
For magnetic material although having many advantages, such as high resistivity, low-loss, at high cost, difficult forming makes its application by the very day of one's doom
System.
Summary of the invention
Mentioned above to solve the problems, such as, the present invention provides a kind of composite material preparation side for high frequency field inductance
Method, the preparation method comprise the following steps that
A, prepare the soft-magnetic alloy powder of a kind of or a kind of classification or more；
B, screening is respectively the soft-magnetic alloy powder of 3um, 8um, 15um and 20um；
C, the soft-magnetic alloy powder that different grain size is distributed is mixed in proportion as needed；
D, by the diluent of 0.35~6.0 parts by weight, the phosphoric acid of 0.1~0.6 parts by weight, 0.1~1.0 parts by weight phosphoric acid
Salt, 0.1~1.0 parts by weight molybdate be added in organic solvent, be added in the step C of 100 parts by weight after mixing
Powder, dry after mixing evenly, 100 mesh sievings carried out after drying；
E, the coupling agent of the epoxy resin of 0.45~5.5 parts by weight, 0.01~1.55 parts by weight is added to organic solvent
In, processed soft-magnetic alloy powder in step D is added after mixing, is thoroughly mixed after above-mentioned material and is taken out after fully reacting
It is dried at 80-160 DEG C, baking time is generally 30~180min.
Preferably, the soft-magnetic alloy powder include straight iron powder, FeSi system powder, FeSiAl system powder, FeSiCr system powder and/
Or amorphous nano crystalline flour.
Preferably, the phosphate is aluminum phosphate, one hydrogen aluminium of phosphoric acid, aluminium dihydrogen phosphate, diammonium hydrogen phosphate, biphosphate
Ammonium and/or trbasic zinc phosphate.
Preferably, the molybdate includes zinc molybdate, molybdic acid aluminium and/or sodium molybdate.
Preferably, the coupling agent include silane series coupling agent, titanate esters system coupling agent, Aluminate system coupling agent and
Its mixture.
Preferably, the diluent is water, alcohol, acetone, butanone or second butanol.
Preferably, the organic solvent is alcohol, acetone, butanone and/or second butanol.
The beneficial effects of the present invention are: soft-magnetic alloy powder provided by the invention has high magnetic permeability, high saturation, high efficiency
The characteristics of, the electronic component using soft-magnetic alloy powder provided by the invention preparation has excellent body insulation, high temperature resistant, Gao Ci
Conductance, high saturation, high efficiency (low-loss) feature.
Specific embodiment
Embodiment 1
1) the iron silicon that D50 is the straight iron powder of 3um, the iron silicon powder of 8um, 20um is screened out respectively using winnowing machine and vibrating screen
The nanometer crystal powder of chromium powder and 15um, and it is stand-by after mixing using ball mill by weight the ratio of 4:3:1:2；
2) diluent alcohol, phosphoric acid, aluminum phosphate and zinc molybdate is taken to be added in organic solvent-acetone, after mixing plus
Enter the powder into step 1, continue thereafter with and be stirred at room temperature uniformly, and dried at 60 DEG C, 100 mesh sievings are carried out after drying；
Wherein the weight ratio of diluent alcohol, phosphoric acid, aluminum phosphate, zinc molybdate, acetone and metal soft magnetic powder is 0.35:0.1:0.1:0.1:
10:100；
3) epoxy resin, titanate coupling agent PN-130 are added to alcohol-acetone mixed solvent (two kinds of solvents is by weight
Mixed than 1:1) in, the powder in step 2 is added after mixing, continues stirring and is dried at 80 DEG C through 180min；Wherein epoxy
The weight ratio of metal soft magnetic powder is 0.5:0.01:1 in resin, titanate coupling agent and alcohol-acetone mixed solvent and step 2:
100。
It is following (loss test condition: 1MHz/50mT) using the performance of the powder pressing magnet ring prepared in embodiment 1:
Embodiment 2
1) the iron silicochromium powder and 20um that D50 is the iron silicon powder of 8um, 20um are screened out respectively using winnowing machine and vibrating screen
Non- crystalline flour, and by weight 4:3:3 ratio using ball mill it is stand-by after mixing；
2) it takes diluent alcohol, phosphoric acid, aluminium dihydrogen phosphate and molybdic acid aluminium to be added in organic solvent-acetone, is uniformly mixed
The powder being added in step 1 afterwards is continued thereafter with and is stirred at room temperature uniformly, and is dried at 60 DEG C, and 100 mesh mistakes are carried out after drying
Sieve.Wherein the weight ratio of diluent alcohol, phosphoric acid, aluminium dihydrogen phosphate, molybdic acid aluminium, acetone and metal soft magnetic powder is 0.35:0.5:
0.5:0.3:10:100；
3) epoxy resin, aluminate coupling agent DL-411 are added to alcohol-acetone mixed solvent (two kinds of solvents is by weight
Mixed than 1:1) in, the powder in step 2 is added after mixing, continues stirring and is dried at 120 DEG C through 120min；Wherein epoxy
The weight ratio of metal soft magnetic powder is 0.45:0.3 in resin, aluminate coupling agent and alcohol-acetone mixed solvent and step 2:
1:100.
The performance of the powder pressing magnet ring prepared by embodiment 2 is following (loss test condition: 1MHz/50mT):
Embodiment 3
1) iron powder that D50 is the iron silicon powder of 15um, 3um is screened out respectively using winnowing machine and vibrating screen, and by weight
The ratio of 4:6 is stand-by after mixing using ball mill；
2) diluent alcohol, phosphoric acid, trbasic zinc phosphate and sodium molybdate is taken to be added in organic solvent-acetone, after mixing plus
Enter the powder into step 1, continue thereafter with and be stirred at room temperature uniformly, and dried at 60 DEG C, 100 mesh sievings are carried out after drying.
Wherein the weight ratio of diluent alcohol, phosphoric acid, trbasic zinc phosphate, sodium molybdate, acetone and metal soft magnetic powder is 0.35:0.6:1:1:10:
100；
3) epoxy resin, Silane coupling reagent KH-570 are added to alcohol-acetone mixed solvent (two kinds of solvents is by weight
1:1 mixing) in, the powder in step 2 is added after mixing, continues stirring and is dried at 160 DEG C through 30min；Wherein asphalt mixtures modified by epoxy resin
The weight ratio of metal soft magnetic powder is 0.55:0.55:6 in rouge, silane coupling agent and alcohol-acetone mixed solvent and step 2:
100。
The performance of the powder pressing magnet ring prepared by the present embodiment 3 is following (loss test condition: 1MHz/50mT):
Claims (7)
1. a kind of composite material and preparation method thereof for high frequency field inductance, which is characterized in that the preparation method includes such as
Under step:
A, prepare the soft-magnetic alloy powder of a kind of or a kind of classification or more；
B, screening is respectively the soft-magnetic alloy powder of 3um, 8um, 15um and 20um；
C, the soft-magnetic alloy powder that different grain size is distributed is mixed in proportion as needed；
D, by the diluent of 0.35~6.0 parts by weight, the phosphoric acid of 0.1~0.6 parts by weight, 0.1~1.0 parts by weight phosphate,
The molybdate of 0.1~1.0 parts by weight is added in organic solvent, the powder being added in the step C of 100 parts by weight after mixing
Material, dries after mixing evenly, 100 mesh sievings is carried out after drying；
E, the coupling agent of the epoxy resin of 0.45~5.5 parts by weight, 0.01~1.55 parts by weight is added in organic solvent, is mixed
Processed soft-magnetic alloy powder in step D is added after closing uniformly, is thoroughly mixed after above-mentioned material and takes out after fully reacting in 80-
160 DEG C of drying.
2. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Soft-magnetic alloy powder include straight iron powder, FeSi system powder, FeSiAl system powder, FeSiCr system powder, nanometer crystal powder and/or amorphous nano
Crystalline flour.
3. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Phosphate be aluminum phosphate, one hydrogen aluminium of phosphoric acid, aluminium dihydrogen phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and/or trbasic zinc phosphate.
4. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Molybdate include zinc molybdate, molybdic acid aluminium and/or sodium molybdate.
5. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Coupling agent include silane series coupling agent, titanate esters system coupling agent, Aluminate system coupling agent and its mixture.
6. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Diluent be water, alcohol, acetone, butanone or second butanol.
7. a kind of composite material and preparation method thereof for high frequency field inductance as described in claim 1, which is characterized in that described
Organic solvent be alcohol, acetone, butanone and/or second butanol.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063501A (en) * | 2019-12-26 | 2020-04-24 | 深圳市艺感科技有限公司 | Preparation method of low-loss powder for producing integrally-formed inductor |
| CN114472878A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Preparation method and application of integrally-formed soft magnetic powder for inductor |
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| CN104028747A (en) * | 2014-05-28 | 2014-09-10 | 浙江大学 | Inhomogeneous nucleation insulation coating processing method of metal soft magnetic composite material |
| CN107689280A (en) * | 2017-06-30 | 2018-02-13 | 安泰科技股份有限公司 | Powder core, molding inductance and its manufacture method |
| JP2018190831A (en) * | 2017-05-08 | 2018-11-29 | 古河電子株式会社 | Composition, mold, and method for manufacturing mold |
| CN109754972A (en) * | 2019-01-30 | 2019-05-14 | 宁波韵升电子元器件技术有限公司 | A kind of high-frequency molding inductance soft magnetism powder and preparation method thereof |
| CN109786060A (en) * | 2019-01-30 | 2019-05-21 | 宁波韵升电子元器件技术有限公司 | Integral mold voltage inductance soft magnetism powder and preparation method thereof |
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2019
- 2019-07-31 CN CN201910701968.XA patent/CN110415962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028747A (en) * | 2014-05-28 | 2014-09-10 | 浙江大学 | Inhomogeneous nucleation insulation coating processing method of metal soft magnetic composite material |
| JP2018190831A (en) * | 2017-05-08 | 2018-11-29 | 古河電子株式会社 | Composition, mold, and method for manufacturing mold |
| CN107689280A (en) * | 2017-06-30 | 2018-02-13 | 安泰科技股份有限公司 | Powder core, molding inductance and its manufacture method |
| CN109754972A (en) * | 2019-01-30 | 2019-05-14 | 宁波韵升电子元器件技术有限公司 | A kind of high-frequency molding inductance soft magnetism powder and preparation method thereof |
| CN109786060A (en) * | 2019-01-30 | 2019-05-21 | 宁波韵升电子元器件技术有限公司 | Integral mold voltage inductance soft magnetism powder and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111063501A (en) * | 2019-12-26 | 2020-04-24 | 深圳市艺感科技有限公司 | Preparation method of low-loss powder for producing integrally-formed inductor |
| CN114472878A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Preparation method and application of integrally-formed soft magnetic powder for inductor |
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Application publication date: 20191105 |