CN105063486A - Composite FeNi material with magnetic conductivity being 100 and manufacturing method thereof - Google Patents
Composite FeNi material with magnetic conductivity being 100 and manufacturing method thereof Download PDFInfo
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- CN105063486A CN105063486A CN201510427349.8A CN201510427349A CN105063486A CN 105063486 A CN105063486 A CN 105063486A CN 201510427349 A CN201510427349 A CN 201510427349A CN 105063486 A CN105063486 A CN 105063486A
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Abstract
The invention belongs to the field of manufacturing of metal soft magnetic materials, and particularly relates to a composite FeNi material with the magnetic conductivity being 100 and a manufacturing method thereof. The composite FeNi material comprises, by weight, 90%-99% of FeNi powder and 1%-10% of ZnCu powder. The FeNi powder comprises, by weight, 45%-55% of iron and 45%-55% of nickel. The ZnCu powder comprises, by weight, 55%-65% of ferric oxide, 30%-35% of zinc oxide and 5%-10% of copper oxide. The composite FeNi material has the advantages of high insulation resistance, high Q value and the like.
Description
Technical field
The invention belongs to metal soft magnetic material and manufacture field, particularly relate to a kind of compound FeNi material and manufacture method thereof of magnetic permeability 100.
Background technology
At present, along with the continuous upgrading of circuit, electronic component in circuit requires that electric current is higher, needs that magnetic permeability is high, saturation magnetic flux density is high, magnetic permeability declines little magnetics after extra current bias field.Metallic magnet opposing ferrite magnet has higher saturation magnetic flux density, and metallic substance is taken as the material of main part of magnet as new use object.But along with miniaturization, the lightening development of electronic product, require electronic component also miniaturization thereupon, lightening.But along with the miniaturization of magnet, in metallic substance the material of high magnetic permeability often have that insulation impedance is low, high frequency time Q value low problem.
Summary of the invention
Main purpose of the present invention is exactly make up the low defect low with Q value during high frequency of existing metallic magnet insulation impedance, proposes a kind of manufacture method of compound FeNi material of magnetic permeability 100.
Technical problem of the present invention is solved by following technical scheme:
A kind of compound FeNi material of magnetic permeability 100, comprise each component of following weight percent: the FeNi powder of 90% ~ 99% and the ZnCu powder of 1% ~ 10%, described FeNi powder comprises each component of following weight percent: the iron of 45% ~ 55% and the nickel of 45% ~ 55%; Described ZnCu powder comprises each component of following weight percent: ferric oxide 55% ~ 65%, zinc oxide 30% ~ 35% and cupric oxide 5% ~ 10%.
A manufacture method for the compound FeNi material of magnetic permeability 100, in turn includes the following steps:
(1) the FeNi powder of 90wt% ~ 99wt% and the ZnCu powder of 1wt% ~ 10wt% are mixed into meal, wherein said FeNi powder comprises the iron of 45wt% ~ 55wt% and the nickel of 45wt% ~ 55wt%; Described ZnCu powder comprises: ferric oxide 55wt% ~ 65wt%, zinc oxide 30wt% ~ 35wt% and cupric oxide 5wt% ~ 10wt%;
(2) described meal is mixed according to mass ratio 1:2 ~ 1:1 with thinner, mixed the FeNi matrix material obtaining pre-mixing by ball mill.
A kind of inductance, is made up of the compound FeNi material of described magnetic permeability 100.
The beneficial effect that the present invention is compared with the prior art is: it is high that compound FeNi material of the present invention has magnetic permeability, insulation impedance is high, , high frequency Q value advantages of higher, and the bonding strength of product is high, structure is homogeneous, the compound FeNi material manufactured by the inventive method, Q value >20 under 100kHz, the standard magnet ring suppressed by compound FeNi material of the present invention is its surface insulation impedance >1000M Ω when magnetic permeability 100, and Q value <10 under common FeNi standard of materials magnet ring 100kHz, insulation resistance is 1 ~ 200M Ω.
Embodiment
Below in conjunction with preferred embodiment, the present invention is explained in detail.
The invention provides a kind of compound FeNi material, in certain embodiments,
Comprise each component of following weight percent: the FeNi powder of 90% ~ 99% and the ZnCu powder of 1% ~ 10%, described FeNi powder comprises each component of following weight percent: the iron of 45% ~ 55% and the nickel of 45% ~ 55%; Described ZnCu powder comprises each component of following weight percent: ferric oxide 55% ~ 65%, zinc oxide 30% ~ 35% and cupric oxide 5% ~ 10%.
In some preferred embodiments, the weight percent of FeNi powder is 95% ~ 98%, and the weight percent of ZnCu powder is 2% ~ 5%.
In further embodiments, also containing binding agent in this compound FeNi material, described binding agent accounts for 1 ~ 5wt% of described FeNi powder and described ZnCu powder gross weight.Preferably, binding agent comprises each component of following weight percent: propyl acetate 55% ~ 80%, polyvinyl butyral 5% ~ 25%, dibutyl phthalate 1% ~ 3%, triglyceride 2% ~ 8% and water glass 1% ~ 10%.More optimizedly, binding agent comprises each component of following weight percent: propyl acetate 70% ~ 80%, polyvinyl butyral 12% ~ 18%, dibutyl phthalate 1% ~ 3%, triglyceride 3% ~ 5% and water glass 3% ~ 6%.
The present invention also provides a kind of manufacture method of compound FeNi material, in certain embodiments, comprises the steps:
(1) the FeNi powder of 90wt% ~ 99wt% and the ZnCu powder of 1wt% ~ 10wt% are mixed into meal, wherein said FeNi powder comprises the iron of 45wt% ~ 55wt% and the nickel of 45wt% ~ 55wt%; Described ZnCu powder comprises: ferric oxide 55wt% ~ 65wt%, zinc oxide 30wt% ~ 35wt% and cupric oxide 5wt% ~ 10wt%;
(2) described meal is mixed according to mass ratio 1:2 ~ 1:1 with thinner, mixed the FeNi matrix material obtaining pre-mixing by ball mill.
Wherein, after the ZnCu powder added and FeNi powder are worked in coordination with, can increase insulation impedance and the Q value of material, the addition of ZnCu powder is 1% ~ 10% time, and insulation impedance and the Q value of matrix material are better.
In some preferably embodiment, also comprise the steps: after step (2)
(3) the FeNi matrix material of described pre-mixing is added in ultrasonic machine, by described binding agent with binding agent: add in described ultrasonic machine after the mass ratio dilution of thinner=1 ~ 3:1, the weight of described binding agent accounts for 1 ~ 5wt% of described meal weight, ultrasonic disperse 1 ~ 3 hour, take out mixing granulation after drying, after being sieved by 30# ~ 200# mesh screen, obtain 30 order ~ 200 object compound FeNi materials.
The water glass added in binding agent can protect compound FeNi material excessively oxidated, and binding agent and the abundant disperse of powder is opened by ultrasonic disperse, and binding agent and powder are more even, and the ultrasonic disperse time is better at 1 ~ 3 little dispersion effect at present.
Wherein, in the art, the material of magnetic permeability within the scope of 100 ± 100*10% all can be called the material of magnetic permeability 100.Thinner in step (2) and (3) can be dehydrated alcohol or anhydrous propanone.
Below by way of embodiment more specifically, the present invention is further elaborated.
Embodiment 1
(1) mixed powder is made up of the component of following weight percent:
FeNi powder 94.5%
ZnCu powder 4.5%
Wherein, FeNi powder, is made up of the component of following weight percent:
Iron 50%
Nickel 50%
ZnCu powder is made up of the component of following weight percent:
Ferric oxide 58%
Zinc oxide 33%
Cupric oxide 9%
Meal is obtained after slightly being mixed by mixed powder according to above weight percent.
(2) meal is put into planetary ball mill to mix, and add dehydrated alcohol (mass ratio of meal and ethanol is 1:2) as thinner, the frequency arranging ball mill is 25Hz, and time 2hr prepares the FeNi matrix material of pre-mixing.
(3)
Mixed powder 96%
Binding agent 4%
Described binding agent is made up of the component of following weight percent:
The FeNi matrix material of pre-mixing is added in ultrasonic machine, with binding agent: the ratio (mass ratio) of ethanol=2:1 dilutes FeNi matrix material blending dispersion that is rear and pre-mixing, the frequency arranging supersonic cleaning machine is 25kHz, time 3hr, take out granulation after drying at 60 DEG C, cross 30# mesh screen after being pulverized by pulverizer to sieve, obtained final compound FeNi material.
Embodiment 2
(1) mixed powder is made up of the component of following weight percent:
FeNi powder 93.5%
ZnCu powder 6.5%
Wherein, FeNi powder, is made up of the component of following weight percent:
Iron 51%
Nickel 49%
ZnCu powder is made up of the component of following weight percent:
Ferric oxide 59%
Zinc oxide 33.5%
Cupric oxide 7.5%
Meal is obtained after slightly being mixed by mixed powder according to above weight percent.
(2) meal is put into planetary ball mill to mix, and add dehydrated alcohol (mass ratio of meal and ethanol is 1:1) as thinner, the frequency arranging planetary ball mill is 30Hz, and time 1hr prepares the FeNi matrix material of pre-mixing.
(3)
Mixed powder 97.5%
Binding agent 2.5%
Described binding agent is made up of the component of following weight percent:
The FeNi matrix material of pre-mixing is added in ultrasonic machine, with binding agent: the ratio (mass ratio) of ethanol=3:1 dilutes FeNi matrix material blending dispersion that is rear and pre-mixing, the frequency arranging supersonic cleaning machine is 25kHz, time 2hr, take out granulation after drying at 60 DEG C, cross 30# mesh screen after being pulverized by pulverizer to sieve, obtained final compound FeNi material.
Embodiment 3
(1) mixed powder is made up of the component of following weight percent:
FeNi powder 99%
ZnCu powder 1%
Wherein, FeNi powder, is made up of the component of following weight percent:
Iron 49%
Nickel 51%
ZnCu powder is made up of the component of following weight percent:
Ferric oxide 62%
Zinc oxide 31%
Cupric oxide 7%
Meal is obtained after slightly being mixed by mixed powder according to above weight percent.
(2) meal is put into planetary ball mill to mix, and add dehydrated alcohol (mass ratio of meal and ethanol is 1:1.5) as thinner, the frequency arranging planetary ball mill is 35Hz, and time 1hr prepares thick FeNi matrix material.
(3)
Mixed powder 99%
Binding agent 1%
Described binding agent is made up of the component of following weight percent:
The FeNi matrix material of pre-mixing is added in ultrasonic machine, with binding agent: the mass ratio of ethanol=1:1 dilutes FeNi matrix material blending dispersion that is rear and pre-mixing, the frequency arranging supersonic cleaning machine is 25kHz, time 1hr, take out granulation after drying at 60 DEG C, cross 30# mesh screen after being pulverized by pulverizer to sieve, obtained final compound FeNi material.
Compound FeNi material manufactured by above-mentioned three embodiments is suppressed under 1600MPa ~ 2000MPa and under 350 DEG C ~ 400 DEG C nitrogen protections, sinters the magnet ring obtaining external diameter 25mm, internal diameter 15mm, thickness 5mm; performance test is carried out to the magnet ring obtained; the magnet ring obtained with common FeNi material compacting sintering contrasts, as shown in the table:
From embodiment 1-3 detected result, the magnet ring that the insulation impedance of the magnet ring obtained with compound FeNi material of the present invention and intensity all obtain than common FeNi material is far better.
The present invention also provides a kind of and makes inductance by the compound FeNi material in each embodiment above-mentioned.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, make some equivalent to substitute or obvious modification, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the compound FeNi material of a magnetic permeability 100, it is characterized in that: each component comprising following weight percent: the FeNi powder of 90% ~ 99% and the ZnCu powder of 1% ~ 10%, described FeNi powder comprises each component of following weight percent: the iron of 45% ~ 55% and the nickel of 45% ~ 55%; Described ZnCu powder comprises each component of following weight percent: ferric oxide 55% ~ 65%, zinc oxide 30% ~ 35% and cupric oxide 5% ~ 10%.
2. compound FeNi material as claimed in claim 1, it is characterized in that: the weight percent of described FeNi powder is 95% ~ 98%, the weight percent of described ZnCu powder is 2% ~ 5%.
3. compound FeNi material as claimed in claim 1 or 2, is characterized in that: also containing binding agent in described compound FeNi material, described binding agent accounts for 1 ~ 5wt% of described FeNi powder and described ZnCu powder gross weight.
4. compound FeNi material as claimed in claim 3, is characterized in that: described binding agent comprises each component of following weight percent: propyl acetate 55% ~ 80%, polyvinyl butyral 5% ~ 25%, dibutyl phthalate 1% ~ 3%, triglyceride 2% ~ 8% and water glass 1% ~ 10%.
5. compound FeNi material as claimed in claim 4, is characterized in that: described binding agent comprises each component of following weight percent: propyl acetate 70% ~ 80%, polyvinyl butyral 12% ~ 18%, dibutyl phthalate 1% ~ 3%, triglyceride 3% ~ 5% and water glass 3% ~ 6%.
6. a manufacture method for the compound FeNi material of magnetic permeability 100, is characterized in that, comprise the steps:
(1) the FeNi powder of 90wt% ~ 99wt% and the ZnCu powder of 1wt% ~ 10wt% are mixed into meal, wherein said FeNi powder comprises the iron of 45wt% ~ 55wt% and the nickel of 45wt% ~ 55wt%; Described ZnCu powder comprises: ferric oxide 55wt% ~ 65wt%, zinc oxide 30wt% ~ 35wt% and cupric oxide 5wt% ~ 10wt%;
(2) described meal is mixed according to mass ratio 1:2 ~ 1:1 with thinner, mixed the FeNi matrix material obtaining pre-mixing by ball mill.
7. manufacture method as claimed in claim 6, is characterized in that, also comprise the steps:
(3) the FeNi matrix material of the described pre-mixing described step (2) obtained adds in ultrasonic machine, by described binding agent with binding agent: add in described ultrasonic machine after the mass ratio dilution of thinner=1 ~ 3:1, the weight of described binding agent accounts for 1 ~ 5wt% of described meal weight, ultrasonic disperse 1 ~ 3 hour, take out mixing granulation after drying, after being sieved by 30# ~ 200# mesh screen, obtain 30 order ~ 200 object compound FeNi materials.
8. manufacture method as claimed in claim 7, it is characterized in that, described binding agent comprises each component of following weight percent: propyl acetate 55% ~ 80%, polyvinyl butyral 5% ~ 25%, dibutyl phthalate 1% ~ 3%, triglyceride 2% ~ 8% and water glass 1% ~ 10%.
9. manufacture method as claimed in claim 7, it is characterized in that, in step (1), the weight percent of described FeNi powder is 95% ~ 98%, and the weight percent of described ZnCu powder is 2% ~ 5%.
10. an inductance, is characterized in that: be made up of the compound FeNi material of the magnetic permeability 100 in claim 3-5 described in any one.
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| CN201510427349.8A CN105063486B (en) | 2015-07-20 | 2015-07-20 | The compound FeNi materials and its manufacture method of a kind of magnetic conductivity 100 |
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| CN201510427349.8A CN105063486B (en) | 2015-07-20 | 2015-07-20 | The compound FeNi materials and its manufacture method of a kind of magnetic conductivity 100 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846906A (en) * | 2006-05-15 | 2006-10-18 | 北京创卓科技有限公司 | Micro injection process of forming soft magnetic Fe-Ni alloy |
| CN101137456A (en) * | 2005-01-12 | 2008-03-05 | 丹麦科技大学 | Method for shrinkage and porosity control during sintering of multilayer structures |
| CN104392820A (en) * | 2014-05-20 | 2015-03-04 | 深圳顺络电子股份有限公司 | Composite soft magnetic material and preparation method thereof |
| CN104392834A (en) * | 2014-05-14 | 2015-03-04 | 深圳顺络电子股份有限公司 | Manufacturing method of iron powder core blank and manufacturing method of iron powder core |
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- 2015-07-20 CN CN201510427349.8A patent/CN105063486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101137456A (en) * | 2005-01-12 | 2008-03-05 | 丹麦科技大学 | Method for shrinkage and porosity control during sintering of multilayer structures |
| CN1846906A (en) * | 2006-05-15 | 2006-10-18 | 北京创卓科技有限公司 | Micro injection process of forming soft magnetic Fe-Ni alloy |
| CN104392834A (en) * | 2014-05-14 | 2015-03-04 | 深圳顺络电子股份有限公司 | Manufacturing method of iron powder core blank and manufacturing method of iron powder core |
| CN104392820A (en) * | 2014-05-20 | 2015-03-04 | 深圳顺络电子股份有限公司 | Composite soft magnetic material and preparation method thereof |
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