CN103233188A - Amorphous anti-electromagnetic interference material and manufacturing method thereof - Google Patents
Amorphous anti-electromagnetic interference material and manufacturing method thereof Download PDFInfo
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- CN103233188A CN103233188A CN2013101444486A CN201310144448A CN103233188A CN 103233188 A CN103233188 A CN 103233188A CN 2013101444486 A CN2013101444486 A CN 2013101444486A CN 201310144448 A CN201310144448 A CN 201310144448A CN 103233188 A CN103233188 A CN 103233188A
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Abstract
The invention relates to an amorphous anti-electromagnetic interference material. An MgZn ferrite material is uniformly distributed in an amorphous material or nanocrystal material; and the MgZn ferrite material accounts for 0.01-5 wt% of the material. The manufacturing method comprises the following steps: (1) screening: screening out 0.01-0.5 micrometer MgZn ferrite material particles, where in the screening adopts vibratory-crushed sintered MgZn ferrite, and a vibratory screen is utilized to obtain the 0.01-0.5 micrometer MgZn ferrite material particles; and (2) tape spraying: in the tape spraying technique of manufacturing the amorphous material or nanocrystal material, uniformly attaching the 0.01-0.5 micrometer MgZn ferrite material particles to a cooled copper rod, wherein when the alloy liquid of the molten amorphous material or nanocrystal material is sprayed onto the cooled copper rod, the alloy liquid is combined with the MgZn ferrite material particles on the copper rod to obtain the finished product.
Description
Technical field:
The present invention relates to the anti-electromagnetic interference material of a kind of non-crystalline state, described material can be applicable on the device of equipment such as mobile phone, computer, communication network, convertible frequency air-conditioner, variable-frequency washing machine, frequency conversion refrigerator, plays to absorb and the electromagnetic effect of inhibition noise; Relate to the manufacture method of the anti-electromagnetic interference material of described non-crystalline state and material simultaneously, belong to materials science field.
Background technology:
Along with the development of electronic information technology, the components and parts with the magneticsubstance manufacturing have been proposed to the requirement of high frequency, broadband, miniaturization and intelligent direction development.The components and parts made from magneticsubstance are as the key element of circuit, and the raising of frequency of utilization has strong demand.It is very wide in aspect purposes such as computer, intelligent appliance, intelligent grid, electromobile, automatic equipment and electronic transformers.
The history of amorphous when with nineteen sixty the U.S. professor Duwez invention to prepare amorphous alloy with rapid quenching technique be the beginning.Therebetween, two stages have been experienced in the development of amorphous soft-magnetic alloy substantially: first stage is since 1967, up to 1988.Four transformer producers of the U.S. in 1984 show practical amorphous substation transformer in the IEEE meeting, indicate that the fs reaches a climax, by 1989, U.S. Allied Signal company has had the throughput of producing 60000 tons of amorphous bands per year, the whole world has 1,000,000 amorphous substation transformers to put into operation approximately, and used Fe-based amorphous band almost all derives from the said firm.This stage is based on the U.S., except the U.S., Japan and Germany are in the characteristic that also has oneself aspect the non-crystaline amorphous metal application and development, and emphasis is electronics and power electronic element, for example advanced audio magnetic head, high frequency electric source (containing switch power supply) transformer, reactance coil, magnetic amplifier etc.
Since 1988, be sign with the invention of iron-base nanometer crystal alloy, the amorphous material development enters subordinate phase.The people such as Yashizawa of FDAC metal company in 1988 develop nano-crystal soft magnetic alloy (Finemet) by the crystallization processing on the non-crystaline amorphous metal basis.Then, Hitachi Metals company nanometer crystal alloy had both been realized industrialization, and had product to introduce to the market.German VAC company in 1992 begins to release nanometer crystal alloy and substitutes cobalt base amorphous alloy, especially on Network Interface Unit, as ISDN, adopts nanocrystalline magnet core to make interface transformer and digital filtering device in a large number.During this period, U.S. Allied Signal company (existing annexed by Honeywell company) has also strengthened non-crystaline amorphous metal the applying of field of power electronics, and successively releases the iron core product of 4 series.The outstanding advantage of this class alloy is to have concurrently high magnetic permeability, the low-loss of high magnetic strength and the cobalt base amorphous alloy of Fe-based amorphous alloy, and is with low cost.Therefore the invention of iron-base nanometer crystal alloy is a breakthrough of soft magnetic materials, thereby the amorphous alloy research and development are pushed to a new upsurge again.Nano-crystal soft magnetic alloy can substitute cobalt base amorphous alloy, crystalline state permalloy and ferrite, obtains widespread use in high-frequency power electronic and electronic information field, reaches purpose such as reduce volume, reduce cost.
Magnetically soft alloy material has caused people's very big attention because having advantages such as core loss is little, resistivity is high, frequency response characteristic is good, magnetic induction density is high, erosion resistance is strong, is described as 21st century novel green energy-saving material.Its technical characterstic is: adopt super quench solidification technology to make the alloy molten steel to the thin band material once shaped; Adopt nanotechnology, make nanomorphic (1 0-20nm) soft magnetic substance between macroscopic and microcosmic.The excellent soft magnetic property of amorphous, nanometer crystal alloy all comes from its special organization structure, does not have crystal grain and crystal boundary in the non-crystaline amorphous metal, is easy to magnetization; The grain-size of nanometer crystal alloy causes average magnetocrystalline anisotropy very little less than the magnetic exchange action length, and by adjusting composition, can make its magnetostriction level off to zero.[table 1] listed typical performance and the main application fields of amorphous/nanocrystalline soft magnetic materials.
And in above-mentioned patent application document and the disclosed material of other file, the formation of the technology of research and development emphasis non-crystalline state internal mechanism, prescription, micromechanism are to improving the influence of magnetic property.Also in amorphous material, do not add ferrite, improve or improve the report and the research that absorb the electromagnetic magnetic property of individual inhibition noise aspect, do not study it yet and in non-crystalline state, add ferrite to the influence of amorphous crystal grain and crystal boundary, do not study the correlation technique that ferrite merges etc. it by which type of technology yet.
Summary of the invention:
Purpose of the present invention is exactly the deficiency at prior art, and the anti-electromagnetic interference material of a kind of non-crystalline state and manufacture method thereof are provided, and its anti-electromagnetic interference performance is good.
Technology solution of the present invention is as follows:
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 0.01-5%.
The weight percent that described MgZn Ferrite Material addition accounts for material is 0.02-3%.
The weight percent that described MgZn Ferrite Material addition accounts for material is 0.5%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1) screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2) spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Beneficial effect of the present invention is:
In amorphous material or nanocrystalline material, added the ferritic composition of MgZn, widened the electromagnetic range of frequency of absorbed noise and improved the electromagnetic upper frequency limit of absorption noise.
Embodiment:
Embodiment 1
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 0.01%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by 0.01 micron MgZn ferrite particle to 0.5 micron micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Embodiment 2
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 0.3%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Embodiment 3
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 0.5%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Embodiment 4
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 1%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Embodiment 5
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 2%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Embodiment 6
The anti-electromagnetic interference material of a kind of non-crystalline state has the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 3%.
The anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state comprises the steps:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
Described MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
Principle of work: except normal principal constituent and additive, the present invention mixes with the MgZn Ferrite Material in the process of spray band in material, in amorphous material, added the ferritic composition of MgZn, widened the electromagnetic range of frequency of absorbed noise and improved the electromagnetic upper frequency limit of absorption noise.
For required material, the change of geometrical shape is that it doesn't matter, and because the higher Zn of temperature has a certain amount of volatilization, just having formed pore at material internal like this, being formed with of this pore is beneficial to fragmentation and the ferrite particle material that produces our required shape.
Following table is when adding different ratios MgZn ferrite, the The performance test results of prepared product of the present invention:
Table 1 The performance test results
| Embodiment | The MgZn adding proportion | Limiting frequency |
| 1 | 0．01% | 593?KHz |
| 2 | 0．3% | 642?KHz |
| 3 | 0．5% | 780?KHz |
| 4 | 1% | 764?KHz |
| 5 | 2% | 755?KHz |
| 6 | 3% | 760?KHz |
| Comparative sample | 562?KHz |
Claims (5)
1. anti-electromagnetic interference material of non-crystalline state, it is characterized in that: have the MgZn Ferrite Material that is evenly distributed in amorphous material or nanocrystalline material, the weight percent that described MgZn ferrite accounts for material is 0.01-5%.
2. the anti-electromagnetic interference material of a kind of non-crystalline state according to claim 1, it is characterized in that: the weight percent that MgZn Ferrite Material addition accounts for material is 0.02-3%.
3. the anti-electromagnetic interference material of a kind of non-crystalline state according to claim 2, it is characterized in that: the weight percent that described MgZn Ferrite Material addition accounts for material is 0.5%.
4. anti-electromagnetic interference material manufacturing method of non-crystalline state is characterized in that:
1), screening: filter out 0.01 micron to 0.5 micron MgZn Ferrite Material particle, the MgZn ferrite behind the broken sintering of vibrations is adopted in screening, by the MgZn ferrite particle of 0.01 micron to 0.5 micron of vibrations screening;
2), spray band; In the spray band technological process of making amorphous material or nanocrystalline material, with 0.01 micron to 0.5 micron MgZn Ferrite Material uniform particles stick on the cooling copper rod, when the alloy liquid of the amorphous material that melts or nanocrystalline material was sprayed onto on the cooling copper rod, the MgZn Ferrite Material particle of alloy liquid on sticking to the copper rod was combined and obtained finished product.
5. the anti-electromagnetic interference material manufacturing method of a kind of non-crystalline state according to claim 4 is characterized in that: MgZn Ferrite Material particle sprays on the cooling copper rod by the mode that sprays.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003221657A (en) * | 2002-01-30 | 2003-08-08 | Yonsei Univ | Amorphous matrix composite material reinforced by ductile particle, and manufacturing method therefor |
| US6827557B2 (en) * | 2001-01-05 | 2004-12-07 | Humanelecs Co., Ltd. | Amorphous alloy powder core and nano-crystal alloy powder core having good high frequency properties and methods of manufacturing the same |
| CN102136331A (en) * | 2010-12-30 | 2011-07-27 | 长春工业大学 | High-efficiency soft magnetic composite material and preparation method thereof |
| CN102142309A (en) * | 2010-12-30 | 2011-08-03 | 长春工业大学 | Block amorphous/ferrite soft magnetic composite material and preparation method thereof |
-
2013
- 2013-04-23 CN CN2013101444486A patent/CN103233188A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6827557B2 (en) * | 2001-01-05 | 2004-12-07 | Humanelecs Co., Ltd. | Amorphous alloy powder core and nano-crystal alloy powder core having good high frequency properties and methods of manufacturing the same |
| JP2003221657A (en) * | 2002-01-30 | 2003-08-08 | Yonsei Univ | Amorphous matrix composite material reinforced by ductile particle, and manufacturing method therefor |
| CN102136331A (en) * | 2010-12-30 | 2011-07-27 | 长春工业大学 | High-efficiency soft magnetic composite material and preparation method thereof |
| CN102142309A (en) * | 2010-12-30 | 2011-08-03 | 长春工业大学 | Block amorphous/ferrite soft magnetic composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李飞: "热喷涂制备Fe基非晶态合金涂层的组织结构与性能研究", 《万方数据库》 * |
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Application publication date: 20130807 |