CN107533906A - Soft magnetic composite material and the corresponding method for preparing soft magnetic composite material - Google Patents
Soft magnetic composite material and the corresponding method for preparing soft magnetic composite material Download PDFInfo
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- CN107533906A CN107533906A CN201680019298.8A CN201680019298A CN107533906A CN 107533906 A CN107533906 A CN 107533906A CN 201680019298 A CN201680019298 A CN 201680019298A CN 107533906 A CN107533906 A CN 107533906A
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- Prior art keywords
- metallic glass
- soft magnetic
- composite material
- bulk metallic
- magnetic composite
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Classifications
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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
- H01F1/20—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
- H01F1/26—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 by macromolecular organic substances
-
- 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
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a kind of soft magnetic composite material.The soft magnetic composite material has numerous pure iron-based grains of crystallization（E1）And bulk metallic glass（G1）, wherein numerous pure iron-based grains of crystallization（E1）With the bulk metallic glass（G1）Coating and numerous pure iron-based grains of crystallization（E1）Via the bulk metallic glass（G1）Coating is in contact with each other.Present invention likewise provides two kinds of alternatives for preparing soft magnetic composite material.
Description
The present invention provides a kind of soft magnetic composite material and the corresponding method for preparing soft magnetic composite material.
Background technology
Printed matter International Materials Reviews (international material comment) volume 2013 the 58th the 3rd
Page 131 to 166 describes a kind of Fe-based bulk glassy metal.
Existing soft magnetic composite material has good magnetic, has increased impedance in all three dimensions, its
In the material there is the shortage of mechanical stability simultaneously.And electric heating piece has good mechanical stability, wherein impedance simultaneously is only
Increase in a dimension.Herein, size is interpreted as direction in space, i.e., in the case of conventional electrical steel plate, magnetic
Flux is in two dimensions（In the planes）Upper guiding, wherein its impedance are orthogonal, that is, point to third dimension.
However, for the application in actuator or motor, it is necessary to have combine high saturated polarization, low coercive force
Power, high magnetic permeability, the soft magnetic composite material of low eddy-current loss and mechanical stability.For this kind of soft magnetic composite material, carry
For wide application.
The content of the invention
The present invention provides soft magnetic composite material according to claim 1 and according to claim 6 and the use of claim 9
In the corresponding substitute method for preparing soft magnetic composite material.
Preferable extension embodiment is the theme of respective dependent claims.
Advantages of the present invention
The present invention, which realizes to have, combines high saturated polarization, low coercive force, high magnetic permeability, low eddy-current loss and machinery
The soft magnetic composite material of stability.
The idea of the present invention is to provide a kind of soft magnetic composite material, and it combines the property being mentioned above and owned
It is respectively provided with three dimensions.High magnetic permeability and low coercive force of the required property especially with regard to soft magnetic property, due to high electricity
Resistance and the low eddy-current loss of mechanical stability.Soft magnetic composite material described herein is combined with these properties, and can be with excellent
Selection of land is used to have in high-frequency application.
" soft magnetism " is interpreted as having low coercive force and high-resistance composite herein.This causes low electricity
Eddy-current loss.Soft magnetic composite material described herein is used in particular for motor and driver (Aktoren).
The idea is to provide with the pure iron-based grains of numerous crystallizations and bulk metallic glass herein（English：bulk
metallic glass (BMG)）Soft magnetic composite material, wherein the pure iron-based grains of numerous crystallizations can for example have it is continuous
And/or the bulk metallic glass coating of homogeneous.This means numerous pure iron-based grains of crystallization for example indirectly can be via bulk
Glassy metal coating is in contact with each other.In other words, matrix is formed, wherein crystallizing the gap bulk metal between pure iron-based grains
Glass-filled.In addition, with traditional soft magnetic composite material, that is, do not have and crystallize pure iron-based grains（English SMC, soft
magnetic composite）On the contrary, soft magnetic composite material described here has higher mechanical strength.
By the isolation on the surface or outer surface that crystallize pure iron-based grains, bulk metallic glass realizes high resistance, to
Eddy-current loss and good mechanical stability or robustness are reduced, wherein, numerous pure iron-based grains of crystallization provide soft magnetism
Property, i.e. high magnetic permeability and low coercive force.
According to preferable extension embodiment, soft magnetic composite material has the crystallization pure iron base between 60% and 99%
Grain, and bulk metallic glass（G1）Share correspondingly between 1% and 40%.Bulk metallic glass be based on phosphorus, boron,
The iron or zirconium alloy powder of cobalt and/or niobium, wherein alloy powder have the iron or zirconium between 70% and 95%, and phosphorus, boron, cobalt
And/or the share of niobium is correspondingly between the 5% of alloy powder and 30%.This is the exemplary non-exhaustive list of element, especially
Ground can contemplate other elements, such as silicon, nickel, silver and/or chromium are respectively used for material described herein.It is preferred here that
The soft magnetic property of composite can determine by the shares percentagewised of the pure iron-based grains of numerous crystallizations, wherein composite
Soft magnetic property particularly including high saturated polarization, low coercive force and high magnetic permeability.
According to further preferred development embodiment, bulk metallic glass coating is high-resistance coating.Preferably, high resistant applies
Layer has the value more than 0.5 micro-ohm meter [μ Ω m].Due to high-resistance coating, for example in high-frequency or high rotating speed in dynamic application
Under can suppress vortex flow, while keep the mechanical stability of soft magnetic composite material.In addition, soft magnetism described herein is compound
Material has improved plastically deformable, and bulk metallic glass does not have in itself.
According to further preferred development embodiment, numerous pure iron-based grains of crystallization are the iron of water atomization or gas atomization
Powder.By the type of atomization, i.e. water atomization or gas atomization, the characteristic of iron powder or iron particle, particularly surface characteristic can be influenceed.
According to application field, the substitute particles shape of iron powder is available, and it is particularly preferably with bulk metallic glass shape described herein
Into soft magnetic composite material.
According to further preferred development embodiment, crystallize the particle mean sizes of pure iron-based grains for 30 and 500 microns it
Between, preferably between 50 and 300 microns.Herein, granularity is understood to refer to particle diameter.Utilize average grain described here
Degree, it is particularly possible to realize the mixing of bulk metallic glass and the special homogeneous of numerous pure iron-based grains of crystallization.
Soft magnetic composite material described herein can be prepared especially by two kinds of alternatives.
First method alternative solution has steps of herein：Bulk metallic glass is melted, bulk metallic glass is cold
But higher than glass transition temperature and it is less than crystallization temperature to a temperature, the wherein temperature.Bulk is carried out in the next step
Glassy metal and the mixing of numerous pure iron-based grains of crystallization, wherein forming bulk metallic glass in numerous pure iron-based grains of crystallization
Layer.Finally, the mixture formed in above-mentioned steps is cooled down, wherein mixture includes soft magnetic composite material.
According to the preferred development embodiment of the above method, mixture is poured to, noted or is pressed into predetermined mould before cooling
In tool.Or mixture can form particle before cooling, then press or inject in predetermined mould.Therefore, soft magnetism is multiple
Condensation material can be formed as desired shape in a straightforward manner.
Second method alternative solution also has steps of：Bulk metallic glass is melted, bulk metallic glass is quenched
And grind into powder.In the next step, powder mixes with numerous pure iron-based grains of crystallization, wherein the mixture that will be consequently formed
It is pressed into predetermined mould, and heats the mixture to a temperature, wherein the temperature is higher than glass transition temperature and low
In crystallization temperature.When the mix is to be heated, bulk metallic glass layer is formed in numerous pure iron-based grains of crystallization.At second
In the final step of method alternative solution, the mixture of formation is cooled down.
According to the preferred development embodiment of this method, glass temperature between 200 DEG C and 600 DEG C, preferably 400 DEG C and
Between 600 DEG C.At these tem-peratures, method described herein can be carried out particularly economically.
For method described herein, also disclose for feature disclosed in soft magnetic composite material, vice versa.
Brief description
Illustrate other features and advantages of the present invention referring to according to Fig. 1 to Fig. 3 embodiment.
Wherein：
Fig. 1 shows the schematic diagram for illustrating the soft magnetic composite material according to embodiment of the present invention；
Fig. 2 shows the schematic diagram of the method for preparing the soft magnetic composite material according to Fig. 1；
Fig. 3 shows the alternative schematic of the method for preparing the soft magnetic composite material according to Fig. 1.
Embodiment of the present invention
In the accompanying drawings, identical reference represents identical or functional equivalent element.
Fig. 1 shows the schematic diagram for illustrating the soft magnetic composite material according to embodiment of the present invention.
Symbol V1 shows soft magnetic composite material V1.Soft magnetic composite material V1 have the pure iron-based grains E1 of numerous crystallizations and
Bulk metallic glass G1.Numerous pure iron-based grains E1 of crystallization have bulk metallic glass G1 coatings, wherein numerous crystallization pure iron bases
Particle E1 is in contact with each other via bulk metallic glass G1 coatings.
It will be seen from figure 1 that bulk metallic glass G1 is formed on the outer surface A1 for crystallizing pure iron-based grains E1.This meaning
, can be via bulk metallic glass G1 connections, especially indirectly via the pure iron-based grains of the adjacent crystallizations of bulk metallic glass G1
Connection.In other words, the gap Z1 crystallized between pure iron-based grains E1 is filled by bulk metallic glass G1, wherein forming bulk gold
Numerous pure iron-based grains E1 of crystallization are connected to each other by category glass matrix and bulk metallic glass G1.Numerous pure iron-based grains E1 of crystallization
Can be to exist in the form of the iron powder of water atomization or gas atomization.
Bulk metallic glass G1 coatings shown in Fig. 1 especially can be high-resistance coating.Crystallize pure iron-based grains E1 granularity
Can be between 30 and 500 microns, preferably between 50 and 300 microns.
Fig. 2 shows the schematic diagram of the method for preparing the soft magnetic composite material according to Fig. 1.
In fig. 2, alphabetical A, B, C and D are related to the method and step of claim 6.Method and step A to D shown in Fig. 2 can
To be carried out particular according to the order shown in Fig. 2.This this have the advantage that bulk metallic glass E1 can especially equably
Or it is distributed in heterogeneity in the gap Z1 of soft magnetic composite material.The mixture especially, prepared in step D can be poured,
Note or be pressed into predetermined mould.Or mixture can be processed into particle before step D, and then can be by particle pressure
Or inject in predetermined mould.
Fig. 3 shows the alternative schematic of the method for preparing the soft magnetic composite material according to Fig. 1.
In figure 3, step A1, B1, C1, D1, E1 and F1 are related to the method and step of claim 9.The method shown in Fig. 3
Step A1 to F1 can be carried out particular according to the order shown in Fig. 3.With the method order that is shown in Fig. 2 on the contrary, can be
Bulk metallic glass G1 and numerous pure iron-based grains E1 of crystallization mixture are mixed with each other before heating so that in the heating phase
Between, bulk metallic glass G1 can be particularly evenly distributed in numerous pure iron-based grains E1 of crystallization gap Z1.
Therefore, soft magnetic composite material can cost-effectively be provided and corresponding for preparing soft magnetic composite material
Method.
Although describing the present invention by reference to preferred embodiment, but be not restricted to that this.Especially, above-mentioned material and knot
Structure is only exemplary, however it is not limited to embodiment described.
Claims (12)
- A kind of 1. soft magnetic composite material（V1）, it has：Numerous pure iron-based grains of crystallization（E1）；WithA kind of bulk metallic glass（G1）,Wherein described numerous pure iron-based grains of crystallization（E1）With the bulk metallic glass（G1）Coating and numerous crystallizations Pure iron-based grains（E1）Via the bulk metallic glass（G1）Coating is in contact with each other.
- 2. soft magnetic composite material according to claim 1（V1）, wherein the soft magnetic composite material（V1）With 60 And the pure iron-based grains of crystallization between 99%（E1）And the bulk metallic glass（G1）Share correspondingly for 1 and 40% it Between, wherein the bulk metallic glass（G1）Based on iron or zirconium alloy powder with phosphorus, boron, cobalt and/or niobium, wherein the conjunction Bronze end has iron or zirconium between 70% and 95%, and phosphorus, boron, the share of cobalt and/or niobium are correspondingly the alloyed powder Between the 5% and 30% of end.
- 3. soft magnetic composite material according to any one of the preceding claims（V1）, wherein the bulk metallic glass （G1）Coating is high-resistance coating.
- 4. soft magnetic composite material according to any one of the preceding claims（V1）, wherein numerous crystallization pure iron bases Particle（E1）It is the iron powder of water atomization or gas atomization.
- 5. soft magnetic composite material according to any one of the preceding claims（V1）, wherein the pure iron-based grains of crystallization （E1）Particle mean size be 30 and 500 microns between, preferably between 50 and 300 microns.
- 6. one kind prepares soft magnetic composite material（V1）Method, it comprises the following steps：A）Melt bulk metallic glass（G1）B）By the bulk metallic glass（G1）A temperature is cooled to, wherein the temperature is higher than glass transition temperature and low In crystallization temperature；C）By the bulk metallic glass（G1）With numerous pure iron-based grains of crystallization（E1）Mixing, wherein pure in numerous crystallizations Iron-based grains（E1）Upper formation bulk metallic glass（G1）Layer；D）Will be in step C）The mixture cooling of middle formation.
- 7. according to the method for claim 6, wherein in step D）The mixture is poured, noted or is pressed into before predetermined mould In tool.
- 8. according to the method for claim 6, wherein in step（D）The mixture is processed into particle before and then will The particle is pressed or injected in predetermined mould.
- 9. one kind prepares soft magnetic composite material（V1）Method, it comprises the following steps：A1）Melt bulk metallic glass（G1）B1）By the bulk metallic glass（G1）Quench simultaneously grind into powder；C1）By the powder and numerous pure iron-based grains of crystallization（E1）Mixing；D1）By step C1）The mixture of middle formation is pressed into predetermined mould and neutralized；E1）A temperature is heated the mixture to, wherein the temperature is higher than glass transition temperature and is less than crystallization temperature, its In in the pure iron-based grains of numerous crystallizations（E1）Upper formation bulk metallic glass（G1）Layer；F1）Cooling step E1）The mixture of middle formation.
- 10. according to the method described in any one of claim 6 or 9, wherein the glass transition temperature is 200 DEG C and 600 DEG C Between, between preferably 400 DEG C and 600 DEG C.
- 11. according to the method described in any one of claim 6 or 9, whereinBulk metallic glass is melted by iron of the melting with phosphorus, boron, cobalt and/or niobium or zirconium alloy powder（G1）, wherein iron Or the share of zirconium is between 70% and 95%, and phosphorus, boron, the share of cobalt and/or niobium are correspondingly between 5% and 30%.
- 12. according to the method described in any one of claim 6 or 9, wherein numerous pure iron-based grains of crystallization（E1）As water atomization Or the iron powder of gas atomization provides.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015206326.7 | 2015-04-09 | ||
| DE102015206326.7A DE102015206326A1 (en) | 2015-04-09 | 2015-04-09 | Soft magnetic composite material and corresponding method for producing a soft magnetic composite material |
| PCT/EP2016/056025 WO2016162188A1 (en) | 2015-04-09 | 2016-03-18 | Soft magnetic composite and corresponding method for producing a soft magnetic composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107533906A true CN107533906A (en) | 2018-01-02 |
| CN107533906B CN107533906B (en) | 2020-08-04 |
Family
ID=55587281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680019298.8A Active CN107533906B (en) | 2015-04-09 | 2016-03-18 | Soft magnetic composite material and corresponding method for producing soft magnetic composite material |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3281212A1 (en) |
| CN (1) | CN107533906B (en) |
| DE (1) | DE102015206326A1 (en) |
| WO (1) | WO2016162188A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT521006B1 (en) * | 2018-01-24 | 2021-08-15 | Miba Sinter Austria Gmbh | Process for manufacturing a component with soft magnetic properties |
| EP3719958A1 (en) * | 2019-04-03 | 2020-10-07 | Siemens Aktiengesellschaft | Soft magnetic composite material for electrical machines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079907A1 (en) * | 2003-10-01 | 2007-04-12 | Johnson William L | Fe-base in-situ compisite alloys comprising amorphous phase |
| JP2008108760A (en) * | 2006-10-23 | 2008-05-08 | Sumitomo Electric Ind Ltd | Dust core, and manufacturing method of dust core |
| US20100224822A1 (en) * | 2009-03-05 | 2010-09-09 | Quebec Metal Powders, Ltd. | Insulated iron-base powder for soft magnetic applications |
| CN104115242A (en) * | 2012-02-17 | 2014-10-22 | Tdk株式会社 | Soft magnetic powder core |
-
2015
- 2015-04-09 DE DE102015206326.7A patent/DE102015206326A1/en active Pending
-
2016
- 2016-03-18 CN CN201680019298.8A patent/CN107533906B/en active Active
- 2016-03-18 EP EP16710976.8A patent/EP3281212A1/en not_active Withdrawn
- 2016-03-18 WO PCT/EP2016/056025 patent/WO2016162188A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079907A1 (en) * | 2003-10-01 | 2007-04-12 | Johnson William L | Fe-base in-situ compisite alloys comprising amorphous phase |
| JP2008108760A (en) * | 2006-10-23 | 2008-05-08 | Sumitomo Electric Ind Ltd | Dust core, and manufacturing method of dust core |
| US20100224822A1 (en) * | 2009-03-05 | 2010-09-09 | Quebec Metal Powders, Ltd. | Insulated iron-base powder for soft magnetic applications |
| CN104115242A (en) * | 2012-02-17 | 2014-10-22 | Tdk株式会社 | Soft magnetic powder core |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016162188A1 (en) | 2016-10-13 |
| EP3281212A1 (en) | 2018-02-14 |
| CN107533906B (en) | 2020-08-04 |
| DE102015206326A1 (en) | 2016-10-13 |
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