CN109166685A - magnetic core composite material - Google Patents

magnetic core composite material Download PDF

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Publication number
CN109166685A
CN109166685A CN201810933741.3A CN201810933741A CN109166685A CN 109166685 A CN109166685 A CN 109166685A CN 201810933741 A CN201810933741 A CN 201810933741A CN 109166685 A CN109166685 A CN 109166685A
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magnetic core
core composite
weight
mgo
surplus
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赵浩峰
张椿英
于鹏
陈姗姗
郑建华
陶冶
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Anhui Institute of Information Engineering
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Anhui Institute of Information Engineering
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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
    • H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
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    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2625—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing magnesium
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Abstract

The invention discloses a kind of magnetic core composite material, the magnetic core composite material includes materials A, material B, material C and material D；Wherein, the material composition of materials A includes: C, Ho, Si, Cd and Fe；The material composition of material B includes: Pb, Sb, Cd, Fe, Si, Ho and Sn；The material composition of material C includes: MgO, CaO, CdO, PbO2, Ho2O3, SiO2 and Al2O3；The material composition of material D includes: PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3.Solving the problems, such as traditional magnetic core composite material, there is also magnetic property deficiencies.

Description

Magnetic core composite material
Technical field
The present invention relates to electronic technology fields, and in particular, to a kind of magnetic core composite material.
Background technique
Magnetic core composite material is widely used in electronic transformer, filter, the magnetic core of inductor, power adapter, calculating The fields such as machine, audio-visual equipment and mobile communication；The Chinese patent of Patent No. CN105330281A discloses a kind of high magnetic permeability The preparation method of magnetic ferrite magnetic core material, the magnetic ferrite magnetic core material is by Fe2O3、Mn3O4、ZnO、Al2O3、NiO、 CaO、ThO2、Y2O3、BaCO3、SrCO3、CuO、Bi2O3、MgO、Rb2O、TaSe2、B6The raw materials such as Si composition；Material of the present invention passes through Primary batching system, a ball milling, once sintered, second batch, secondary ball milling, compression moulding, double sintering and etc. be made.This hair Bright magnetic ferrite magnetic core material obtained has preferable comprehensive performance, not only has high magnetic conductivity, originates magnetic conductance I >=15000 rate μ, maximum permeability μm ax >=24000.But there is also relatively low deficiencies for its magnetic property.
Summary of the invention
The object of the present invention is to provide a kind of magnetic core composite materials, and solving traditional magnetic core composite material, there is also magnetism The insufficient problem of energy.
To achieve the goals above, the present invention provides a kind of magnetic core composite materials, and the magnetic core composite material includes material Expect A, material B, material C and material D；
Wherein, the material composition of materials A includes: C, Ho, Si, Cd and Fe；
The material composition of material B includes: Pb, Sb, Cd, Fe, Si, Ho and Sn；
The material composition of material C includes: MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3；
The material composition of material D includes: PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3。
Through the above technical solutions, the magnetic core microstructure of composite is uniform the present invention provides a kind of magnetic core composite material Densification, material D are ferrite base-material, MgO, ZnO, Mn2O3And Fe2O3Spinel structure is formed, ferritic matrix is constituted.CdO Promote crystal growth, reduces stomata；Rare earth oxide Ho2O3Promote crystal grain homoepitaxial in the material, inhibits crystal grain extremely long Greatly.Ho2O3、Nd2O3Improve the resistivity of material, promotes lower power consumption.Materials A is alloy material, and ferrite base can be filled The gap of material, close material matrix, while playing toughening material.The crystal grain of Cd and C refining alloy therein itself, Ho and Si can reinforced alloys soft magnetism.Materials A and material D are baking mixed, facilitate the magnetic of ferrite matrix and improve.Material C is Inorganic material plays fluxing action, can improve the resistivity of grain boundaries, promotes lower power consumption.Material B is low melting material, Ferrite crystal grains can be effectively wrapped up, liquid-phase sintering is played the role of, grain growth can be effectively facilitated and inhibit the annexation of crystal grain, so that Crystal grain homoepitaxial, stomata are reduced, and the porosity in crystal boundary and crystal grain reduces, and improve ferritic microstructure, domain wall displacement Reduce with domain rotation resistance, therefore magnetic hystersis loss reduces；Low-melting alloy can play toughening ferrite base-material grain boundary simultaneously Effect.Cd, Ho, Pb can refine the crystal grain of low melting point alloy, and the intensity of low-melting alloy and hard can be improved in Sb, Si, Fe Degree can effectively strengthen ferritic crystal boundary, reduce the brittleness of inorganic composite material.Magnetic core composite material of the present invention has good Good magnetic property, while with good stability and practicability, can be widely applied to field of electronic devices etc..
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the organization chart of magnetic core composite material provided by the invention.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of magnetic core composite material, the magnetic core composite material include materials A, material B, material C and Material D；
Wherein, the material composition of materials A includes: C, Ho, Si, Cd and Fe；
The material composition of material B includes: Pb, Sb, Cd, Fe, Si, Ho and Sn；
The material composition of material C includes: MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3；
The material composition of material D includes: PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3。
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, materials A includes The material composition of following parts by weight: C 1.1-1.5%, Ho 0.3-0.8%, Si 8-11%, Cd 0.01-0.05% and surplus Fe。
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, material B includes The material composition of following parts by weight: Pb 9-11%, Sb 13-15%, Cd 0.01-0.05%, Fe 1-5%, Si 0.2- 0.7%, Ho 0.08-0.12% and surplus Sn.
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, material C includes The material composition of following parts by weight: MgO 3-5%, CaO 3-5%, CdO 0.1-0.4%, PbO20.1-0.4%, Ho2O3 0.03-0.08%, SiO250-60% and surplus Al2O3。
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, material D includes The material composition of following parts by weight: PbO20.1-0.4%, Mn2O37-12%, Cr2O31-4%, CdO 0.1-0.4%, Nd2O30.1-0.4%, ZnO 8-12%, MgO 3-5%, Ho2O30.03-0.08% and surplus Fe2O3。
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, materials A, material The weight ratio for expecting B, material C and material D is 2-5:0.5-0.8:0.9-1.3:30.
The present invention will be described in detail by way of examples below.In following embodiment, the system of the magnetic core composite material Preparation Method are as follows:
The preparation of material 1: C, Ho, Si, Cd and Fe are subjected to ingredient, each material purity is all larger than 99.9%, first by raw material In being put into induction furnace, heat up melting, keeps the temperature 25 minutes after reaching 1600 DEG C of smelting temperature；So alloy liquid injection is located at In tundish on atomizer, aluminium alloy by tundish bottom leakage eye flow out, when passing through nozzle with high-speed flow meet by Atomization is fine drop, and atomized drop is rapidly solidificated into alloy powder in closed atomizing cup, and alloy powder average particle size is equal It is 8 μm, atomization pressure 7MPa, liquid metal fluid flow is 3kg/min, and it is 1565 DEG C that alloy liquid, which injects temperature, Atomizing angle is 30 degree；
The preparation of material 2: Pb, Sb, Cd, Fe, Si, Ho and Sn are subjected to ingredient, each material purity is all larger than 99.9%, first In raw material is put into induction furnace, heat up melting, keeps the temperature 25 minutes after reaching 740 DEG C of smelting temperature；Then by alloy liquid Injection is located in the tundish on atomizer, and aluminium alloy is flowed out by tundish bottom leakage eye, when passing through nozzle with high speed gas Stream, which meets, to be atomized as fine drop, and atomized drop is rapidly solidificated into alloy powder in closed atomizing cup, and alloy powder is flat Equal granularity is 13 μm, atomization pressure 4.5MPa, and liquid metal fluid flow is 2kg/min, alloy liquid injection temperature Degree is 730 DEG C, and atomizing angle is 28 degree；
The preparation of material 3: by MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3Ingredient is carried out, each material purity is big In 99.9%, each raw material is subjected to mixing and breaking up in sand mill, then dries powder at 225 DEG C, after drying after Sieve, sieve are 200 mesh, are then placed in sintering furnace and are sintered, and sintering temperature is 1015 DEG C, finally by sintered product in grinder In so that diameter of particle is reached 14 microns；
The preparation of material D: by PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3Ingredient is carried out, respectively Material purity is all larger than 99.9%；Each raw material is subjected to mixing and breaking up in sand mill, then dries powder at 160 DEG C Dry, re-sieving after drying, sieve is 200 mesh；
Then materials A is added in material D, after mixing, is then placed in sintering furnace and is roasted, sintering temperature is 1055 DEG C, roasting mixture is made diameter of particle reach 14 micro- by the roasting mixture of final material A and material D in grinder Rice；
After material B, material C and materials A/material D ingredient, it is added in three-dimensional mixer and is uniformly mixed, obtain mixed powder Material；Then mixed powder is orientated in Magnetic field press, using etc. static pressure mode form.Molded blank is put under protection of argon gas Enter sintering furnace to be sintered, be first warming up to 875 DEG C, keeps the temperature 3.5h, then heat to 1220 DEG C of sintering 3.5h, be cooled to room temperature Afterwards, double tempering processing is carried out most to obtain through 245 DEG C of ageing treatments afterwards that is, respectively in 700 DEG C and 455 DEG C of tempering heat treatment 1.5h To product
Embodiment 1
It is carried out according to above-mentioned preparation method, wherein materials A includes the material composition of following parts by weight: C1.1%, Ho 0.3%, Si 8%, Cd 0.01% and surplus Fe；Material B includes the material composition of following parts by weight: Pb 9%, Sb 13%, Cd 0.01%, Fe 1%, Si 0.2%, Ho 0.08% and surplus Sn；Material C includes the material composition of following parts by weight: MgO 3%, CaO 3%, CdO 0.1%, PbO20.1%, Ho2O30.03%, SiO250% and surplus Al2O3；Material D include with The material composition of lower parts by weight: PbO20.1%, Mn2O37%, Cr2O31%, CdO 0.1%, Nd2O30.1%, ZnO 8%, MgO 3%, Ho2O30.03% and surplus Fe2O3；Materials A, material B, material C and material D weight ratio be 2:0.5: 0.9:30。
Embodiment 2
It is carried out according to above-mentioned preparation method, wherein materials A includes the material composition of following parts by weight: C 1.3%, Ho 0.5%, Si 9%, Cd 0.03% and surplus Fe；Material B includes the material composition of following parts by weight: Pb 10%, Sb 14%, Cd 0.03%, Fe 4%, Si 0.5%, Ho 0.1% and surplus Sn；Material C includes the material composition of following parts by weight: MgO 4%, CaO 4%, CdO 0.3%, PbO20.3%, Ho2O30.06%, SiO255% and surplus Al2O3；Material D include with The material composition of lower parts by weight: PbO20.3%, Mn2O39%, Cr2O33%, CdO 0.2%, Nd2O30.3%, ZnO 10%, MgO 4%, Ho2O30.05% and surplus Fe2O3；Materials A, material B, material C and material D weight ratio be 4:0.7: 1.1:30。
Embodiment 3
It is carried out according to above-mentioned preparation method, wherein materials A includes the material composition of following parts by weight: C 1.5%, Ho 0.8%, Si 11%, Cd 0.05% and surplus Fe；Material B includes the material composition of following parts by weight: Pb 11%, Sb 15%, Cd 0.05%, Fe 5%, Si 0.7%, Ho 0.12% and surplus Sn；Material C include following parts by weight raw material at Point: MgO 5%, CaO 5%, CdO 0.4%, PbO20.4%, Ho2O30.08%, SiO260% and surplus Al2O3；Material D Material composition including following parts by weight: PbO20.4%, Mn2O312%, Cr2O34%, CdO 0.4%, Nd2O30.4%, ZnO 12%, MgO 5%, Ho2O30.08% and surplus Fe2O3；Materials A, material B, material C and material D weight ratio be 5: 0.8:1.3:30。
Embodiment 4
It is carried out according to above-mentioned preparation method, wherein materials A includes the material composition of following parts by weight: C 1%, Ho 0.2%, Si 6%, Cd 0.005% and surplus Fe；Material B includes the material composition of following parts by weight: Pb 8%, Sb 11%, Cd 0.005%, Fe 0.7%, Si 0.1%, Ho 0.07% and surplus Sn；Material C includes the material composition of following parts by weight: MgO 2%, CaO 2%, CdO 0.08%, PbO20.08%, Ho2O30.02%, SiO246% and surplus Al2O3；Material D Material composition including following parts by weight: PbO20.09%, Mn2O36%, Cr2O30.6%, CdO 0.08%, Nd2O3 0.09%, ZnO 7%, MgO 2%, Ho2O30.02% and surplus Fe2O3；Materials A, material B, material C and material D weight Than for 6:0.4:0.7:30.
Embodiment 5
It is carried out according to above-mentioned preparation method, wherein materials A includes the material composition of following parts by weight: C 1.7%, Ho 0.9%, Si 13%, Cd 0.07% and surplus Fe；Material B includes the material composition of following parts by weight: Pb 13%, Sb 17%, Cd 0.07%, Fe 6%, Si 0.8%, Ho 0.15% and surplus Sn；Material C include following parts by weight raw material at Point: MgO 6%, CaO 6%, CdO 0.5%, PbO20.5%, Ho2O30.09%, SiO264% and surplus Al2O3；Material D Material composition including following parts by weight: PbO20.6%, Mn2O314%, Cr2O35%, CdO 0.6%, Nd2O30.6%, ZnO 14%, MgO 6%, Ho2O30.09% and surplus Fe2O3；Materials A, material B, material C and material D weight ratio be 1: 0.9:1.5:30。
Comparative example 1
Benefit number is the performance parameter of the high magnetoconductivity magnetic ferrite magnetic core material of the Chinese patent of CN105330281A.
Table 1
Fig. 1 is the organization chart of magnetic core composite material provided by the invention, and even tissue is fine and close.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (6)

1. a kind of magnetic core composite material, which is characterized in that the magnetic core composite material includes materials A, material B, material C and material D；
Wherein, the material composition of materials A includes: C, Ho, Si, Cd and Fe；
The material composition of material B includes: Pb, Sb, Cd, Fe, Si, Ho and Sn；
The material composition of material C includes: MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3；
The material composition of material D includes: PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3。
2. magnetic core composite material according to claim 1, wherein materials A includes the material composition of following parts by weight: C 1.1-1.5%, Ho 0.3-0.8%, Si 8-11%, Cd 0.01-0.05% and surplus Fe.
3. magnetic core composite material according to claim 1, wherein material B includes the material composition of following parts by weight: Pb 9-11%, Sb 13-15%, Cd 0.01-0.05%, Fe 1-5%, Si 0.2-0.7%, Ho 0.08-0.12% and surplus Sn。
4. magnetic core composite material according to claim 1, wherein material C includes the material composition of following parts by weight: MgO 3-5%, CaO 3-5%, CdO 0.1-0.4%, PbO20.1-0.4%, Ho2O30.03-0.08%, SiO250-60% and Surplus Al2O3。
5. magnetic core composite material according to claim 1, wherein material D includes the material composition of following parts by weight: PbO2 0.1-0.4%, Mn2O37-12%, Cr2O31-4%, CdO 0.1-0.4%, Nd2O30.1-0.4%, ZnO 8-12%, MgO 3-5%, Ho2O30.03-0.08% and surplus Fe2O3。
6. magnetic core composite material according to claim 1, wherein materials A, material B, material C and material D weight ratio be 2-5:0.5-0.8:0.9-1.3:30。
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CN106229104A (en) * 2016-08-31 2016-12-14 北京康普锡威科技有限公司 A kind of soft magnetic composite powder and preparation process for magnetic powder core thereof
CN107311637A (en) * 2017-07-04 2017-11-03 浙江大学 A kind of method that low-power consumption manganese-zinc ferrite is prepared based on core shell structure crystal grain
CN107555983A (en) * 2017-09-11 2018-01-09 横店集团东磁股份有限公司 A kind of soft magnetism magnetostrictive ferrite material and preparation method thereof
CN108335819A (en) * 2018-03-29 2018-07-27 南京信息工程大学 A kind of sintering magnetic composite and preparation method thereof
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Publication number Priority date Publication date Assignee Title
CN102651264A (en) * 2011-02-25 2012-08-29 北京有色金属研究总院 Sintered composite soft magnetic material and method for preparing same
CN102321830A (en) * 2011-10-24 2012-01-18 南京信息工程大学 Low-smelting point high-strength lead-bismuth rare earth alloy and preparation method thereof
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