CN108922720A - The preparation method of magnetic core composite material - Google Patents
The preparation method of magnetic core composite material Download PDFInfo
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- CN108922720A CN108922720A CN201810934003.0A CN201810934003A CN108922720A CN 108922720 A CN108922720 A CN 108922720A CN 201810934003 A CN201810934003 A CN 201810934003A CN 108922720 A CN108922720 A CN 108922720A
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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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- 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
- H01F1/34—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 non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
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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
- H01F1/34—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 non-metallic substances, e.g. ferrites
- H01F1/36—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 non-metallic substances, e.g. ferrites in the form of particles
-
- 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
Abstract
The invention discloses a kind of preparation method of magnetic core composite material, the preparation method includes：C, Ho, Si, Cd and Fe are mixed, melting obtains alloy liquid, obtains materials A through atomization process；By Pb, Sb, Cd, Fe, Si, Ho and Sn into mixing, melting obtains alloy liquid, obtains material B through atomization process；By MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3Mix is carried out, obtains material C after processing；By PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3Mix is carried out, material D is obtained after processing；Materials A and material D are mixed, sintering obtains AD mixture after grinding；Material B, material C and AD mixture are mixed, and are compacted form blank N, is sintered handles to obtain magnetic core composite material with double tempering respectively.Solving the problems, such as traditional magnetic core composite material, there is also magnetic property deficiencies.
Description
Technical field
The present invention relates to electronic technology fields, and in particular, to a kind of preparation method 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 preparation methods of magnetic core composite material, solve traditional magnetic core composite material
There is also the problems of magnetic property deficiency.
To achieve the goals above, the present invention provides a kind of preparation method of magnetic core composite material, the preparation methods
Including：
(1) preparation of materials A：C, Ho, Si, Cd and Fe are subjected to mix, its melting is obtained into aluminium alloy after mixing
Alloy liquid is obtained materials A through atomization process by body；
(2) preparation of material B：By Pb, Sb, Cd, Fe, Si, Ho and Sn into mix, its melting is closed after mixing
Alloy liquid is obtained material B through atomization process by golden liquid；
(3) preparation of material C：By MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3Carry out mix, after pass through
Material C is obtained after broken, drying, sieving and sintering；
(4) preparation of material D：By PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3It is mixed
Ingredient obtains material D after drying and sieving later；
(5) materials A and material D are subjected to 2-5:20 mixing, are then sintered at 1020-1090 DEG C, AD are obtained after grinding
Mixture；
(6) material B, material C and AD mixture are mixed, and is compacted form blank N, blank N is burnt respectively
Knot processing and double tempering handle to obtain magnetic core composite material.
Through the above technical solutions, magnetic core obtained is multiple the present invention provides a kind of preparation method of magnetic core composite material
Condensation material even tissue is fine and close, and material D is ferrite base-material, MgO, ZnO, Mn2O3And Fe2O3Spinel structure is formed, iron is constituted
The matrix of oxysome.CdO promotes crystal growth, reduces stomata；Rare earth oxide Ho2O3Promote crystal grain homoepitaxial, suppression in the material
Abnormal grain growth processed.Ho2O3、Nd2O3Improve the resistivity of material, promotes lower power consumption.Materials A is alloy material, can
The gap of ferrite base-material, close material matrix are filled, while playing toughening material.Cd and C refining alloy sheet therein
The crystal grain of body, Ho and Si can reinforced alloys soft magnetism.Materials A and material D are baking mixed, facilitate the magnetism of ferrite matrix
It improves.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 can effectively wrap up ferrite crystal grains, play the role of liquid-phase sintering, can effectively facilitate grain growth and inhibit crystal grain
Annexation so that crystal grain homoepitaxial, stomata is reduced, and the porosity in crystal boundary and crystal grain reduces, and improves ferritic micro- knot
Structure, domain wall displacement and domain rotation resistance reduce, therefore magnetic hystersis loss reduces；Low-melting alloy can play toughening ferrite base simultaneously
Expect the effect of grain boundary.Cd, Ho, Pb can refine the crystal grain of low melting point alloy, and low-melting alloy can be improved in Sb, Si, Fe
Intensity and hardness, can effectively strengthen ferritic crystal boundary, reduce the brittleness of inorganic composite material.Magnetic core composite wood of the present invention
Material has 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 preparation method of magnetic core composite material, the preparation method includes：
(1) preparation of materials A：C, Ho, Si, Cd and Fe are subjected to mix, its melting is obtained into aluminium alloy after mixing
Alloy liquid is obtained materials A through atomization process by body；
(2) preparation of material B：By Pb, Sb, Cd, Fe, Si, Ho and Sn into mix, its melting is closed after mixing
Alloy liquid is obtained material B through atomization process by golden liquid；
(3) preparation of material C：By MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3Carry out mix, after pass through
Material C is obtained after broken, drying, sieving and sintering；
(4) preparation of material D：By PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3It is mixed
Ingredient obtains material D after drying and sieving later；
(5) materials A and material D are subjected to 2-5:20 mixing, are then sintered at 1020-1090 DEG C, AD are obtained after grinding
Mixture；
(6) material B, material C and AD mixture are mixed, and is compacted form blank N, blank N is burnt respectively
Knot processing and double tempering handle to obtain magnetic core composite material.
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, in step (1)
In, the condition of melting includes：Temperature is 1580-1620 DEG C, soaking time 20-30min；And/or
The condition of atomization process includes：Atomization pressure is 6-9MPa, and the flow of alloy liquid is 2-4kg/min, is closed
The injection temperature of golden liquid is 1550-1580 DEG C, and atomization angle is 30 degree.
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, in step (2)
In, the condition of melting includes：Temperature is 720-760 DEG C, soaking time 20-30min；And/or
The condition of atomization process includes：Atomization pressure is 4-5MPa, and the flow of alloy liquid is 1-3kg/min, is closed
The injection temperature of golden liquid is 710-750 DEG C, and atomization angle is 28 degree.
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%,
Ho2O30.03-0.08%, SiO250-60% and surplus Al2O3。
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, in step (3)
In, the condition of drying includes：Temperature is 210-240 DEG C；And/or
The condition of sieving includes：The sieve of selection is 180-220 mesh；
The condition of sintering includes：The temperature of sintering is 980-1050 DEG C.
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, in step (4)
In, the condition of drying includes：Temperature is 150-170 DEG C；And/or
The condition of sieving includes：The sieve of selection is 180-220 mesh.
In a preferred embodiment of the invention, in order to improve the magnetic property of magnetic core composite material, in step (6)
In, material B, material C and AD mixture are 0.5-0.8 according to mass ratio:0.9-1.3:The ratio of 32-35 is mixed；And/or
The condition of sintering processes includes：Blank N is first warming up to 800-950 DEG C, 3-4h is kept the temperature, then heats to 1210-
1230 DEG C, keep the temperature 3-4h；And/or
Double tempering processing condition include：Respectively in 690-710 DEG C and 440-470 DEG C of each tempering heat treatment 1-2h, it
By 240-250 DEG C of ageing treatment.
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 is：
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：C 1.1%, 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 includes following heavy
Measure the material composition of part：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 includes following heavy
Measure the material composition of part：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 packet
Include the material composition of 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 includes
The material composition of following parts by weight：PbO20.09%, Mn2O36%, Cr2O30.6%, CdO 0.08%, Nd2O30.09%, ZnO
7%, MgO2%, Ho2O30.02% and surplus Fe2O3；Materials A, material B, material C and material D weight ratio be 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 packet
Include the material composition of 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 (10)
1. a kind of preparation method of magnetic core composite material, which is characterized in that the preparation method includes：
(1) preparation of materials A：C, Ho, Si, Cd and Fe are subjected to mix, its melting is obtained into alloy liquid after mixing, it will
Alloy liquid obtains materials A through atomization process；
(2) preparation of material B：By Pb, Sb, Cd, Fe, Si, Ho and Sn into mix, its melting is obtained into aluminium alloy after mixing
Alloy liquid is obtained material B through atomization process by body；
(3) preparation of material C：By MgO, CaO, CdO, PbO2、Ho2O3、SiO2And Al2O3Carry out mix, after through it is broken,
Material C is obtained after drying, sieving and sintering；
(4) preparation of material D：By PbO2、Mn2O3、Cr2O3、CdO、Nd2O3、ZnO、MgO、Ho2O3And Fe2O3Mix is carried out,
Material D is obtained after drying and sieving later；
(5) materials A and material D are subjected to 2-5:20 mixing, are then sintered at 1020-1090 DEG C, and AD mixing is obtained after grinding
Material；
(6) material B, material C and AD mixture are mixed, and is compacted form blank N, blank N is sintered place respectively
Reason and double tempering handle to obtain magnetic core composite material.
2. preparation method 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. preparation method according to claim 1, wherein in step (1), the condition of melting includes：Temperature is 1580-
1620 DEG C, soaking time 20-30min；And/or
The condition of atomization process includes：Atomization pressure is 6-9MPa, and the flow of alloy liquid is 2-4kg/min, aluminium alloy
The injection temperature of body is 1550-1580 DEG C, and atomization angle is 30 degree.
4. preparation method 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.
5. preparation method according to claim 1, wherein in step (2), the condition of melting includes：Temperature is 720-
760 DEG C, soaking time 20-30min；And/or
The condition of atomization process includes：Atomization pressure is 4-5MPa, and the flow of alloy liquid is 1-3kg/min, aluminium alloy
The injection temperature of body is 710-750 DEG C, and atomization angle is 28 degree.
6. preparation method 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 remaining
Measure Al2O3。
7. preparation method according to claim 1, wherein in step (3), the condition of drying includes：Temperature is 210-
240℃；And/or
The condition of sieving includes：The sieve of selection is 180-220 mesh；
The condition of sintering includes：The temperature of sintering is 980-1050 DEG C.
8. preparation method 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。
9. preparation method according to claim 1, wherein in step (4), the condition of drying includes：Temperature is 150-
170℃；And/or
The condition of sieving includes：The sieve of selection is 180-220 mesh.
10. preparation method according to claim 1, wherein in step (6), material B, material C and AD mixture according to
Mass ratio is 0.5-0.8:0.9-1.3:The ratio of 32-35 is mixed；And/or
The condition of sintering processes includes：Blank N is first warming up to 800-950 DEG C, 3-4h is kept the temperature, then heats to 1210-1230
DEG C, keep the temperature 3-4h；And/or
Double tempering processing condition include：Respectively in 690-710 DEG C and 440-470 DEG C of each tempering heat treatment 1-2h, after pass through
240-250 DEG C of ageing treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934003.0A CN108922720A (en) | 2018-08-16 | 2018-08-16 | The preparation method of magnetic core composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934003.0A CN108922720A (en) | 2018-08-16 | 2018-08-16 | The preparation method of magnetic core composite material |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN108389676A (en) * | 2018-03-29 | 2018-08-10 | 江苏南方永磁科技有限公司 | A kind of temperature tolerance permanent-magnet material and preparation method thereof |
-
2018
- 2018-08-16 CN CN201810934003.0A patent/CN108922720A/en active Pending
Patent Citations (7)
| 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 |
| 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 |
| CN108389676A (en) * | 2018-03-29 | 2018-08-10 | 江苏南方永磁科技有限公司 | A kind of temperature tolerance permanent-magnet material and preparation method thereof |
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Application publication date: 20181130 |