CN107516568A - A kind of metal composite magnetic and metal magnetic powder core - Google Patents
A kind of metal composite magnetic and metal magnetic powder core Download PDFInfo
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- CN107516568A CN107516568A CN201710979038.1A CN201710979038A CN107516568A CN 107516568 A CN107516568 A CN 107516568A CN 201710979038 A CN201710979038 A CN 201710979038A CN 107516568 A CN107516568 A CN 107516568A
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- 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
- H01F1/14—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 metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- 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
- H01F1/14—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 metals or alloys
- H01F1/20—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 metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
-
- 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
- H01F41/0253—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 for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Abstract
The application belongs to metal soft magnetic material field, more particularly to a kind of metal composite magnetic and metal magnetic powder core.The preparation of metal composite magnetic provided by the present invention includes：It will be reacted by the metal magnetic of flaky process with oxygen plasma, obtain the metal composite magnetic that surface forms insulated by oxide clad.The present invention uses chemical vapor depsotition equipment, using oxygen plasma as reactant, the electrical contact between one layer of oxide insulating layer continuously, stable of the surface of metal magnetic formation, effective barrier metal magnetic, so as to reduce the high-frequency loss of metal magnetic powder core.The magnetic conductivity of the metal magnetic powder core prepared by above-mentioned metal composite magnetic is high, high-frequency loss is low, its preparation process is simple, the reaction time is short, cost is low, pollution-free, use easy to spread, can be widely applied to telecommunication, radar, suction involve the multiple fields such as electromagnetic shielding.
Description
Technical field
The invention belongs to metal soft magnetic material field, and in particular to a kind of metal composite magnetic and metal magnetic powder core.
Background technology
Powder core is to be formed by magnetic material powder with dielectric mixing compacting.The combination property of Fe-Si-Al magnetic core compared with
It is good, cost is low, has the advantage that other magnetic materials hardly match in many application fields, be widely used at present telecommunication,
Inductance filter, choking-winding and Switching Power Supply iron core in the products such as radar, TV, power supply.
The powder core working frequency of early stage only requires high magnetic conductivity and not high to low-loss requirement than relatively low.With
The working frequency more and more higher of powder core application, how in the case where ensureing powder core high magnetic permeability, reduce magnetic core loss
As outstanding problem.Therefore, study powder core magnetic conductivity and the influence factor of core loss is just particularly important.Close both at home and abroad
Mainly suppressed in the research of metal magnetic powder core by improving magnetic particle capability, the suitable insulating compound of selection and granularity of magnet powder, adjustment
The methods of parameter, improves the magnetic property of powder core.With going deep into for research, consider to be improved from process aspect, such as insulating bag
Coating process, briquetting pressure, granularity of magnet powder and powder core Technology for Heating Processing are got over to the magnetic conductivity of powder core and the influence of high-frequency loss
More to attract attention.Chinese patent CN201210443610.X discloses a kind of low core loss Fe-Si-Al magnetic of high magnetic flux density
The preparation technology of core, chosen, pre-processed by powder, Passivation Treatment, insulating wrapped processing, it is compressing, heat treatment etc. step
Object is obtained, the product of preparation has higher magnetic conductivity and relatively low core loss, but step is relatively complicated.
The content of the invention
In view of this, it is an object of the invention to provide a kind of metal composite magnetic, applied to preparing a kind of high magnetic permeability
Low-loss metal magnetic powder core.
The concrete technical scheme of the present invention is as follows：
A kind of metal composite magnetic, its preparation include：It will enter by the metal magnetic of flaky process with oxygen plasma
Row reaction, obtain the metal composite magnetic that surface forms insulated by oxide clad.
Preferably, it is described reaction plasma enhanced chemical vapor deposition equipment, aumospheric pressure cvd equipment or
Carried out in low pressure chemical vapor deposition equipment；
The time of the reaction is 30~120min.
Preferably, the background vacuum of the reaction is 3pa, and oxygen pressure is 25~30pa, and temperature is 20~600 DEG C,
Radio-frequency power is 100~200w.
Preferably, the flaky process is carried out in ball mill；Ratio of grinding media to material is (11~13):1, Ball-milling Time be 35~
50h。
Preferably, the metal magnetic be Fe-Si-Al magnetic, ferromagnetic powder, iron silica magnetic particle, iron tantnickel magnetic, iron nickel magnetic and
One or more in iron nickel molybdenum magnetic.
Present invention also offers a kind of metal magnetic powder core, its preparation includes：By above-mentioned metal composite magnetic and binding agent and
Mix lubricant, cold moudling, obtain the metal magnetic powder core.
Preferably, the weight ratio of the metal composite magnetic, binding agent and lubricant is (97~98.5):(1~2):
(0.5~1).
Preferably, the binding agent is epoxy resin；The lubricant is magnesium stearate.
Preferably, the pressure of the cold moudling is 1800~2000Mpa；
Compression rate is 1mm/min；
Dwell time is 3~8min.
Preferably, also include after the cold moudling：1h is incubated at 650 DEG C~690 DEG C, is made annealing treatment.
In summary, the invention provides a kind of metal composite magnetic, its preparation to include：By by the gold of flaky process
Category magnetic is reacted with oxygen plasma, obtains the metal composite magnetic that surface forms insulated by oxide clad.The present invention
Using chemical vapor depsotition equipment, under vacuum, using oxygen plasma as reactant, one is formed on the surface of metal magnetic
Layer is continuous, the oxide insulating layer of stabilization, the electrical contact between effective barrier metal magnetic, so as to reduce metal magnetic powder core
High-frequency loss；The present invention carries out insulation processing using chemical gas-phase reaction method to metal magnetic surface, realizes single step reaction shape
Into a variety of surrounding phases, the stability and continuity of insulating barrier are good.Metal composite magnetic and metal magnetic powder core provided by the present invention
Magnetic conductivity is high, high-frequency loss is low, its preparation process is simple, the reaction time is short, cost is low, pollution-free, use easy to spread, can
It is widely used in telecommunication, radar, suction involve the multiple fields such as electromagnetic shielding.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is that embodiment 1 reacts the iron sial that different time obtains in plasma enhanced chemical vapor deposition equipment
The Effective permeability of powder core prepared by composite magnetic powder；
Fig. 2 is that embodiment 1 reacts the iron sial that different time obtains in plasma enhanced chemical vapor deposition equipment
The loss (test frequency 100KHz, Bm 50mT) of powder core prepared by composite magnetic powder.
Embodiment
In order to solve prior art problem, the invention provides a kind of metal composite magnetic, applied to preparing a kind of high magnetic
Conductance, low-loss metal magnetic powder core.
The preparation of metal composite magnetic of the present invention includes：It will enter by the metal magnetic of flaky process with oxygen plasma
Row reaction, obtain the metal composite magnetic that surface forms insulated by oxide clad.
During the course of the reaction, O2It is ionized as O2-, O2-With preferable activity, rapidly can occur with metal magnetic anti-
Should, in the oxide of metal magnetic surface in situ composite insulation, fully ensure that the uniformity and integrality of insulating barrier.These oxygen
Compound intensity is high and stably, abrasion-resistant, it can be ensured that metal magnetic powder core barrier metal magnetic during compressing process and use
Electrical contact between powder, is effectively reduced high frequency eddy current losses, has widened the application field of powder core.
At present, the method for coating of metal magnetic has two major classes：One kind is dry method, using with insulating effect, granularity 5~
50 μm of organic dust such as mica uniformly mixes with Magnaglo in mixed powder machine；Another kind of is wet method, is divided into again organic wet
Two classes of bag and inorganic wet bag.The way of wherein organic wet bag is molten after organic insulation binding agent is mixed by suitable ratio uniform
In organic solvent, then it is well mixed with magnetic；Inorganic wet method is then to carry out surface passivating treatment to powder, using phosphate
Magnaglo surface is set to deposit one layer of film not soluble in water, to improve corrosion resistance, adsorptivity and wearability etc..Insulating adhesive
Inorganic insulation system and organic insulation system can be substantially divided into.If only being had using organic insulation binding agent, cladding is uneven,
Annealing temperature is restricted, it is difficult to fully eliminate caused internal stress in powder core preparation process.Also have iron sial at high temperature
Magnetic is placed in oxygen or nitrogen, and oxide or nitride are formed on sendust powder surface.At low temperature by iron sial magnetic
Powder is placed in progress surface insulation processing in phosphating solution or oxidising agent.
In the present invention, using oxygen as reactant, oxygen plasma has that reaction temperature is low and that reaction speed is fast is excellent
Point, overcome at present in conventional metal magnetic insulating coating method both at home and abroad and insulating barrier unstable (pyrolytic), strong be present
Spend low (clad is easily crushed during powder core is compressing), reaction temperature height, time length (high-temperature oxydation, high temperature nitrogen
Change), the problems such as oxide layer is discontinuous and thickness is unmanageable.
In the present invention, chemical gas phase reaction is carried out in plasma enhanced chemical vapor deposition equipment.To anti-before reaction
Stove evacuation is answered to 3pa, then is passed through oxygen, oxygen pressure remains 25~30pa, starts radio-frequency power supply, radio-frequency power 100
~200w；Reative cell is furnished with heater, during the course of the reaction can be with selective actuation heater；Improving reaction chamber temperature has
Help accelerate oxidation rate, the temperature range of heating devices heat is 200~600 DEG C.So reaction, in metal magnetic surface shape
Into insulated by oxide clad, metal composite magnetic is obtained.
In the present invention, O2It is ionized in plasma enhanced chemical vapor deposition reacting furnace as O2-, O2-Rapidly with gold
Belong to magnetic and produce reaction.Using plasma strengthens chemical vapor depsotition equipment, and oxygen plasma has than O2Preferably activity
And higher oxidation rate, and reaction temperature is low.
The present invention rapidly synthesizes continuous, uniform oxide on metal magnetic surface at low temperature, overcomes at present
Conventional metal magnetic insulating coating method obtains both at home and abroad insulating barrier unstable (pyrolytic), low intensity (powder core pressure
Clad is easily crushed during type is made), the problems such as discontinuous and thickness is unmanageable, also, the gold that the present invention uses
It is cheap, environmentally friendly to belong to magnetic insulating coating method cost.
Further, metal composite magnetic is cleaned with deionized water, then 1~2h is dried at 120~150 DEG C；Then
Add binding agent and mix lubricant；Then, cold moudling is carried out.
In the present invention, the mass ratio of metal composite magnetic, binding agent and lubricant is (97~98.5)：(1~2)：(0.5
~1.0).
In the present invention, binding agent is epoxy resin, and lubricant is magnesium stearate.
In the present invention, metal magnetic is ferromagnetic powder, iron silica magnetic particle, iron tantnickel magnetic, iron nickel magnetic, iron nickel molybdenum magnetic and iron
One or more in Si-Al magnetic.
Further, metal magnetic of the invention is the metal magnetic by flaky process.
In the present invention, flaky process is carried out in planetary ball mill, and ball milling pearl is hardened steel ball.Its rotating speed be 35~
50rpm；Ratio of grinding media to material is (11~13):1；Processing time is 35~50h.
Further, also include after cold moudling：Powder core is incubated 1h at 650~690 DEG C, carried out at annealing
Reason.
The purpose of annealing improves metal magnetic powder core to eliminate metal magnetic powder core caused internal stress in cold moudling
Magnetic conductivity.
For alloyed metal (AM) magnetic, many oxide can be synthesized on metal magnetic surface by single step reaction, and
Can be by controlling radio-frequency power and reaction time to control the thickness of oxide layer.
When metal magnetic is Fe-Si-Al magnetic, oxygen plasma can react with Fe, Si, Al in metal magnetic etc., directly
React to obtain many oxide on Fe-Si-Al magnetic surface.These oxides react in Fe-Si-Al magnetic surface in situ to be synthesized, can
Fully ensure that the uniformity and integrality of insulating barrier.These oxide strengths are high and stably, abrasion-resistant, it can be ensured that Fe-Si-Al magnetic
Electrical contact of the core between barrier metal magnetic during compressing process and use, is effectively reduced high frequency eddy current losses,
Widen the application field of Fe-Si-Al magnetic core.
The present invention use chemical gas phase reaction, using oxygen as reactant, metal magnetic surface formed one layer continuously,
Stable oxide insulating layer, the electrical contact between effective barrier metal magnetic, so as to reduce the high-frequency loss of metal magnetic powder core.
The present invention carries out metal magnetic surface insulation processing using chemical gas phase reaction, realizes single step reaction and forms a variety of surrounding phases
(including iron oxide, aluminum oxide and silica), the stability and continuity of insulating barrier are good.The preparation method of the powder core of the present invention
It is simple to operate, the reaction time is short, cost is low, pollution-free, use easy to spread, use this method prepare powder core magnetic conductivity
Height, high-frequency loss is low, application field is wide.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1
1st, Fe-Si-Al magnetic core is prepared
(1) Fe-Si-Al magnetic is put into ball milling in frequency conversion planetary ball mill, using hardened steel ball, ratio of grinding media to material 12:1,
Drum's speed of rotation is 35r/min, Ball-milling Time 40h, obtains the Fe-Si-Al magnetic of flattening.
(2) Fe-Si-Al magnetic for crossing ball milling is put into the reative cell of plasma enhanced chemical vapor deposition equipment, is taken out
Vacuum is to 3pa, then is passed through O2, O2Pressure remains 26pa, starts radio-frequency power supply, radio-frequency power 100w, does not start reative cell
Heater, reaction time are set to 0min, 30min, 60min, 90min and 120min, obtain 5 kinds of surfaces and form insulated by oxide
The iron sial composite magnetic powder of clad, this 5 kinds of iron sial composite magnetic powder number consecutivelies are a, b, c, d and e.
(3) above-mentioned 5 kinds of iron sial composite magnetic powder is taken out, is cleaned with deionized water, is added after then drying 1h at 120 DEG C
Epoxy resin and magnesium stearate, above-mentioned 5 kinds of iron sial composite magnetic powder is cold-pressed into iron sial magnetic under 1800Mpa after well mixed
Powder core；
Wherein, the mixed weight ratio of iron sial composite magnetic powder, epoxy resin and magnesium stearate is 97:2:1.
(4) Fe-Si-Al magnetic core is incubated 1h at 650 DEG C, carries out stress relief annealing process, obtain above-mentioned iron sial and answer
Close 5 kinds of target products corresponding to magnetic, number consecutively A, B, C, D and E.
2nd, performance detection
(1) above-mentioned 5 kinds of iron is tested using VSM (vibrating sample magnetometer, vibrating specimen magnetometer)
Sial composite magnetic powder a, b, c, d and e saturation magnetization (Ms), as a result as shown in table 1, as a result showed, with the reaction time
Increase, Ms decline.
Table 1
| Iron sial composite magnetic powder is numbered | a | b | c | d | e |
| Ms(emu/g) | 120.9 | 116 | 113.1 | 112.3 | 106.6 |
(2) using the 3260B type accurate magnetic component analysises instrument test iron sial of the steady section's electronic instrument formula production of Britain
Powder core A, B, C, D and E inductance, during measurement powder core with a diameter of 0.5mm enamel-covered wire around 5 circles, then according to measurement
The Effective permeability of inductance value calculation powder core.Fig. 1 is when reacting different in plasma enhanced chemical vapor deposition equipment
Between the Effective permeability of Fe-Si-Al magnetic core for preparing, as a result show, the reaction time is longer, and the magnetic conductivity of Fe-Si-Al magnetic core is got over
It is small.
(3) MATS -2010A soft magnetism alternating-current measurement device to test Fe-Si-Al magnetic cores A, B, C, D and E loss are used, is surveyed
Examination frequency is 100KHz, Bm 50mT.Fig. 2 is to react different time in plasma enhanced chemical vapor deposition equipment to prepare
Fe-Si-Al magnetic core loss, as a result show, the reaction time is longer, and the loss of Fe-Si-Al magnetic core is smaller.
With reference to above-mentioned experimental result, when being 90min between finding when reacted, the loss of Fe-Si-Al magnetic core substantially reduces,
Continue to increase the reaction time, the effect of reduction magnetic core loss is not notable, but reduces Effective permeability.Therefore, the reaction time
For 90min when, the loss of powder core can be down to 86W/Kg, and Effective permeability can maintain 85 or so, have preferably it is comprehensive
Energy.
Embodiment 2
The difference of the present embodiment and embodiment 1 is：Start the heater of reative cell, and be by reaction chamber temperature control
300 DEG C, reaction time 30min.Under the same testing conditions, its loss can be down to 78W/Kg to thus obtained powder core,
Effective permeability is 88.
Remaining place and embodiment 1 are essentially identical, no longer repeat one by one herein.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of metal composite magnetic, it is characterised in that its preparation includes：By by the metal magnetic of flaky process and oxygen etc.
Gas ions are reacted, and obtain the metal composite magnetic that surface forms insulated by oxide clad.
2. metal composite magnetic according to claim 1, it is characterised in that the reaction is in plasma enhanced chemical gas
Carried out in phase depositing device, aumospheric pressure cvd equipment or low pressure chemical vapor deposition equipment；
The time of the reaction is 30~120min.
3. metal composite magnetic according to claim 1, it is characterised in that the background vacuum of the reaction is 3pa, oxygen
Atmospheric pressure is 25~30pa, and temperature is 20~600 DEG C, and radio-frequency power is 100~200w.
4. metal composite magnetic according to claim 1, it is characterised in that the flaky process enters in ball mill
OK；
Ratio of grinding media to material is (11~13):1, Ball-milling Time is 35~50h.
5. metal composite magnetic according to claim 1, it is characterised in that the metal magnetic is Fe-Si-Al magnetic, iron
One or more in magnetic, iron silica magnetic particle, iron tantnickel magnetic, iron nickel magnetic and iron nickel molybdenum magnetic.
6. a kind of metal magnetic powder core, it is characterised in that its preparation includes：Metal described in claim 1 to 5 any one is answered
Magnetic and binding agent and mix lubricant are closed, cold moudling, obtains the metal magnetic powder core.
7. metal magnetic powder core according to claim 6, it is characterised in that metal composite magnetic, binding agent and the lubrication
The weight ratio of agent is (97~98.5):(1~2):(0.5~1).
8. metal magnetic powder core according to claim 7, it is characterised in that the binding agent is epoxy resin；
The lubricant is magnesium stearate.
9. metal magnetic powder core according to claim 6, it is characterised in that the pressure of the cold moudling be 1800~
2000Mpa；
Compression rate is 1mm/min；
Dwell time is 3~8min.
10. metal magnetic powder core according to claim 6, it is characterised in that also include after the cold moudling：
1h is incubated at 650 DEG C~690 DEG C, is made annealing treatment.
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|---|---|---|---|---|
| CN108597718A (en) * | 2018-05-30 | 2018-09-28 | 广东工业大学 | A kind of metal composite magnetic powder and metal magnetic powder core |
| CN108777204A (en) * | 2018-05-08 | 2018-11-09 | 华南理工大学 | A kind of preparation method of samarium iron nitrogen permanent-magnet powder |
| CN109848428A (en) * | 2018-12-26 | 2019-06-07 | 北京康普锡威科技有限公司 | The preparation method and metal soft magnetic composite material of metal soft magnetic composite material |
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| CN114517015A (en) * | 2020-11-20 | 2022-05-20 | 洛阳尖端技术研究院 | Wave-absorbing composition, wave-absorbing material and preparation method thereof |
| CN114752113A (en) * | 2022-04-25 | 2022-07-15 | 电子科技大学长三角研究院(湖州) | Method for enhancing FeSiAl wave-absorbing material by plasma densification of acrylic polyurethane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062904A (en) * | 1989-10-03 | 1991-11-05 | Fuji Photo Film Co., Ltd. | Treatment of ferromagnetic metal powders and magnetic recording media using the same |
| US20050079551A1 (en) * | 2003-09-01 | 2005-04-14 | Mikihisa Mizuno | Nanoparticle array and method for producing nanoparticle array and magnetic recording medium |
| CN105336492A (en) * | 2015-12-11 | 2016-02-17 | 广东工业大学 | Surface insulation treating method adopting boric acid as reactant to reduce sendust core loss |
| JP2017108037A (en) * | 2015-12-11 | 2017-06-15 | 株式会社村田製作所 | Magnetic particles, method for producing the same, and inductor |
-
2017
- 2017-10-19 CN CN201710979038.1A patent/CN107516568A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062904A (en) * | 1989-10-03 | 1991-11-05 | Fuji Photo Film Co., Ltd. | Treatment of ferromagnetic metal powders and magnetic recording media using the same |
| US20050079551A1 (en) * | 2003-09-01 | 2005-04-14 | Mikihisa Mizuno | Nanoparticle array and method for producing nanoparticle array and magnetic recording medium |
| CN105336492A (en) * | 2015-12-11 | 2016-02-17 | 广东工业大学 | Surface insulation treating method adopting boric acid as reactant to reduce sendust core loss |
| JP2017108037A (en) * | 2015-12-11 | 2017-06-15 | 株式会社村田製作所 | Magnetic particles, method for producing the same, and inductor |
Non-Patent Citations (2)
| Title |
|---|
| 沈文正: "《实用集成电路工艺手册》", 31 October 1989 * |
| 葛袁静: "《等离子体科学技术及其在工业中的应用》", 31 January 2011 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777204A (en) * | 2018-05-08 | 2018-11-09 | 华南理工大学 | A kind of preparation method of samarium iron nitrogen permanent-magnet powder |
| CN108597718A (en) * | 2018-05-30 | 2018-09-28 | 广东工业大学 | A kind of metal composite magnetic powder and metal magnetic powder core |
| CN109848428A (en) * | 2018-12-26 | 2019-06-07 | 北京康普锡威科技有限公司 | The preparation method and metal soft magnetic composite material of metal soft magnetic composite material |
| CN111029078A (en) * | 2019-09-18 | 2020-04-17 | 佛山市中研非晶科技股份有限公司 | Powder insulation coating method, finished product powder and finished product magnetic powder core preparation method |
| CN110591661A (en) * | 2019-10-08 | 2019-12-20 | 苏州铂韬新材料科技有限公司 | Preparation method of wave-absorbing heat-conducting double-function powder |
| CN112251648A (en) * | 2020-09-29 | 2021-01-22 | 绵阳西磁科技有限公司 | High-permeability low-loss FeNiMo magnetic powder core and preparation method thereof |
| CN114517015A (en) * | 2020-11-20 | 2022-05-20 | 洛阳尖端技术研究院 | Wave-absorbing composition, wave-absorbing material and preparation method thereof |
| CN113096907A (en) * | 2021-03-10 | 2021-07-09 | 广东省科学院材料与加工研究所 | Metal magnetic powder core and preparation method thereof |
| CN113828788A (en) * | 2021-08-27 | 2021-12-24 | 深圳顺络电子股份有限公司 | Preparation method of soft magnetic alloy composite material/granulated powder and alloy material |
| CN114360882A (en) * | 2021-12-31 | 2022-04-15 | 华南理工大学 | Magnetic powder core with nano oxide/double-scale soft magnetic core functional elements and preparation method and application thereof |
| CN114752113A (en) * | 2022-04-25 | 2022-07-15 | 电子科技大学长三角研究院(湖州) | Method for enhancing FeSiAl wave-absorbing material by plasma densification of acrylic polyurethane |
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