CN105788790A - Graphene-added material for material additive manufacturing magnetic core - Google Patents
Graphene-added material for material additive manufacturing magnetic core Download PDFInfo
- Publication number
- CN105788790A CN105788790A CN201610129493.8A CN201610129493A CN105788790A CN 105788790 A CN105788790 A CN 105788790A CN 201610129493 A CN201610129493 A CN 201610129493A CN 105788790 A CN105788790 A CN 105788790A
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- China
- Prior art keywords
- magnetic core
- graphene
- binding agent
- polyvinyl alcohol
- manufactures
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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
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
-
- 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
- H01F1/37—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 in a bonding agent
Abstract
The invention belongs to the field of a material for a material additive manufacturing magnetic core, and particularly discloses a material for the material additive manufacturing magnetic core. The material comprises a soft magnetic material, a hard magnetic material and a binding agent, wherein graphene is added into the binding agent. In the material, the graphene is added into the binding agent of the material for the material additive manufacturing magnetic core, the density which the material additive manufacturing magnetic core product lacks is improved, the binding agent polyvinyl alcohol is promoted to volatilize better during the sintering process to prevent gap generation; moreover, the dispersibility is ensured, the Curie temperature sensitivity of the soft magnetic material is simultaneously improved, and a guarantee is provided for manufacturing a high-quality magnetic core.
Description
Technical field
The invention belongs to increasing material manufacture magnetic Material Field, concretely relate to a kind of increasing material adding Graphene and manufacture magnetic core material.
Background technology
Increase material manufacturing technology as the rising star in manufacturing industry, be a revolutionary new manufacture.It change tradition raw material is cut, the pattern that produces of assemble products from parts, deisgn product is converted into 3D data by CAD software, passes through specific former (3D printer) afterwards, successively " printing " go out product.Can pass through to increase material manufacturing technology and manufacture the huge number of product, the material adopted is also numerous, wherein magnetic core is to apply maximum one in numerous product, the raw material types manufacturing magnetic is also numerous, soft magnetic materials and the big class of hard magnetic material two can be attributed on the whole, adopt soft magnetic materials and hard magnetic material to combine and increase material manufacturing technology when manufacturing magnetic core, be usually present the problem that raw material dispersive property is bad and product density is difficult to ensure that.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of increasing material adding Graphene to manufacture magnetic core material.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of increasing material adding Graphene manufactures magnetic core material, including soft magnetic materials, hard magnetic material, binding agent, has been also added with Graphene in described binding agent.
Further, described binding agent is polyvinyl alcohol.
Further, described hard magnetic material is neodymium iron boron hard magnetic material.
Further, described soft magnetic materials is by forming by the following material of mol percentage ratio: 43-47mol%Fe2O3、34-36mol%Mn3O4, the carbonyl iron dust of NiO, 25-30mol% of 11-13mol%ZnO, 15-22mol%, 4-7mol%CuO, 0.1-0.5mol%Co2O3, 4-6mol%BaO, appropriate deionized water.
The preparation method of described soft magnetic materials is as follows:
(1) dispensing: by gross weight 1000g, weighs above material respectively by above-mentioned mol ratio and mass fraction；
(2) material with slurry: the Fe that step (1) is weighed2O3、Mn3O4, ZnO mixing, and add the deionized water and stirring of gross weight 3-5 times uniformly after, employing planetary ball mill wet grinding 3h, obtain slurry standby；
(3) adjuvant is joined: the NiO that step (1) weighed, carbonyl iron dust, CuO, Co2O3, BaO mixing, adopt Ball Mill ball milling 25-35min, put in Muffle furnace high temperature 700-800 DEG C calcining 1.5-2.5h afterwards, obtain adjuvant standby；
(4) polyvinyl alcohol will add Graphene, adopt ultrasonator to process 9-10min to uniform and stable, obtain binding liquid standby；
(5) by adjuvant and slurry mixing and stirring, at 120 DEG C, heated and stirred processes 35-45min, is slowly added to binding liquid continuously stirred 20-30min afterwards, obtains compound standby；
(6) compound is put in Muffle furnace, and in the atmosphere of inert nitrogen gas and oxygen, first calcine 3-4h at 300 DEG C, certain heating rate is adopted to be warming up to 1250 DEG C afterwards, insulation calcining 6-8h, uniform decrease in temperature is to room temperature afterwards, obtaining, wherein heating rate controls at 180-240 DEG C/h, and rate of temperature fall controls at 120-180 DEG C/h.
Further, it is 6-8wt% that described polyvinyl alcohol accounts for the percentage by weight of soft magnetic materials total amount, and it is 8-10wt% that described Graphene weight accounts for the percentage by weight of polyvinyl alcohol.
Beneficial effects of the present invention:
The present invention adds Graphene in the binding agent increasing material manufacture magnetic core material, promotes increasing material and manufactures the density that magnetic core goods are short of, and contributes to the better volatilization in sintering process of bonding agent polyvinyl alcohol and avoids the generation of air gap.Furthermore, it is ensured that effectively promote the sensitivity of the Curie temperature sensing of soft magnetic materials while dispersibility, provide guarantee for manufacturing high-quality magnetic core.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
Embodiment 1:
A kind of increasing material adding Graphene manufactures magnetic core material, including soft magnetic materials, hard magnetic material, binding agent, has been also added with Graphene in described binding agent.
Further, described binding agent is polyvinyl alcohol.
Further, described hard magnetic material is neodymium iron boron hard magnetic material.
Further, described soft magnetic materials is by forming by the following material of mol percentage ratio: 43mol%Fe2O3、34mol%Mn3O4, the carbonyl iron dust of NiO, 30mol% of 11mol%ZnO, 22mol%, 7mol%CuO, 0.5mol%Co2O3, 5mol%BaO, appropriate deionized water.
As follows by the soft magnetic materials preparation method of above-mentioned formula:
(1) dispensing: by gross weight 1000g, weighs above material respectively by above-mentioned mol ratio and mass fraction；
(2) material with slurry: the Fe that step (1) is weighed2O3、Mn3O4, ZnO mixing, and add the deionized water and stirring of gross weight 3 times uniformly after, adopt planetary ball mill wet grinding 3h, obtain slurry standby；
(3) adjuvant is joined: the NiO that step (1) weighed, carbonyl iron dust, CuO, Co2O3, BaO mixing, adopt Ball Mill ball milling 25min, put in Muffle furnace high temperature 700 DEG C calcining 2.5h afterwards, obtain adjuvant standby；
(4) polyvinyl alcohol will add Graphene, adopt ultrasonator to process 9min to uniform and stable, obtain binding liquid standby；
(5) by adjuvant and slurry mixing and stirring, at 120 DEG C, heated and stirred processes 35min, is slowly added to binding liquid continuously stirred 20min afterwards, obtains compound standby；
(6) compound is put in Muffle furnace, and in the atmosphere of inert nitrogen gas and oxygen, first calcine 3h at 300 DEG C, certain heating rate is adopted to be warming up to 1250 DEG C afterwards, insulation calcining 6h, uniform decrease in temperature is to room temperature afterwards, obtaining, wherein heating rate controls at 180 DEG C/h, and rate of temperature fall controls at 120 DEG C/h.
Further, it is 6wt% that described polyvinyl alcohol accounts for the percentage by weight of soft magnetic materials total amount, and it is 8wt% that described Graphene weight accounts for the percentage by weight of polyvinyl alcohol.
Embodiment 2:
A kind of increasing material adding Graphene manufactures magnetic core material, including soft magnetic materials, hard magnetic material, binding agent, has been also added with Graphene in described binding agent.
Further, described binding agent is polyvinyl alcohol.
Further, described hard magnetic material is neodymium iron boron hard magnetic material.
Further, described soft magnetic materials is by forming by the following material of mol percentage ratio: 45mol%Fe2O3、35mol%Mn3O4, the carbonyl iron dust of NiO, 27.5mol% of 12mol%ZnO, 18.5mol%, 5.5mol%CuO, 0.3mol%Co2O3, 5mol%BaO, appropriate deionized water.
As follows by the soft magnetic materials preparation method of above-mentioned formula:
(1) dispensing: by gross weight 1000g, weighs above material respectively by above-mentioned mol ratio and mass fraction；
(2) material with slurry: the Fe that step (1) is weighed2O3、Mn3O4, ZnO mixing, and add the deionized water and stirring of gross weight 4 times uniformly after, adopt planetary ball mill wet grinding 3h, obtain slurry standby；
(3) adjuvant is joined: the NiO that step (1) weighed, carbonyl iron dust, CuO, Co2O3, BaO mixing, adopt Ball Mill ball milling 30min, put in Muffle furnace high temperature 700-800 DEG C calcining 2h afterwards, obtain adjuvant standby；
(4) polyvinyl alcohol will add Graphene, adopt ultrasonator to process 9.5min to uniform and stable, obtain binding liquid standby；
(5) by adjuvant and slurry mixing and stirring, at 120 DEG C, heated and stirred processes 40min, is slowly added to binding liquid continuously stirred 25min afterwards, obtains compound standby；
(6) compound is put in Muffle furnace, and in the atmosphere of inert nitrogen gas and oxygen, first calcine 3.5h at 300 DEG C, certain heating rate is adopted to be warming up to 1250 DEG C afterwards, insulation calcining 7h, uniform decrease in temperature is to room temperature afterwards, obtaining, wherein heating rate controls at 210 DEG C/h, and rate of temperature fall controls at 150 DEG C/h.
Further, it is 7wt% that described polyvinyl alcohol accounts for the percentage by weight of soft magnetic materials total amount, and it is 9wt% that described Graphene weight accounts for the percentage by weight of polyvinyl alcohol.
Embodiment 3:
A kind of increasing material adding Graphene manufactures magnetic core material, including soft magnetic materials, hard magnetic material, binding agent, has been also added with Graphene in described binding agent.
Further, described binding agent is polyvinyl alcohol.
Further, described hard magnetic material is neodymium iron boron hard magnetic material.
Further, described soft magnetic materials is by forming by the following material of mol percentage ratio: 47mol%Fe2O3、36mol%Mn3O4, the carbonyl iron dust of NiO, 25mol% of 13mol%ZnO, 15mol%, 4mol%CuO, 0.1mol%Co2O3, 5mol%BaO, appropriate deionized water.
As follows by the soft magnetic materials preparation method of above-mentioned formula:
(1) dispensing: by gross weight 1000g, weighs above material respectively by above-mentioned mol ratio and mass fraction；
(2) material with slurry: the Fe that step (1) is weighed2O3、Mn3O4, ZnO mixing, and add the deionized water and stirring of gross weight 3-5 times uniformly after, employing planetary ball mill wet grinding 3h, obtain slurry standby；
(3) adjuvant is joined: the NiO that step (1) weighed, carbonyl iron dust, CuO, Co2O3, BaO mixing, adopt Ball Mill ball milling 35min, put in Muffle furnace high temperature 800 DEG C calcining 2.5h afterwards, obtain adjuvant standby；
(4) polyvinyl alcohol will add Graphene, adopt ultrasonator to process 10min to uniform and stable, obtain binding liquid standby；
(5) by adjuvant and slurry mixing and stirring, at 120 DEG C, heated and stirred processes 45min, is slowly added to binding liquid continuously stirred 30min afterwards, obtains compound standby；
(6) compound is put in Muffle furnace, and in the atmosphere of inert nitrogen gas and oxygen, first calcine 4h at 300 DEG C, certain heating rate is adopted to be warming up to 1250 DEG C afterwards, insulation calcining-8h, uniform decrease in temperature is to room temperature afterwards, obtaining, wherein heating rate controls at 240 DEG C/h, and rate of temperature fall controls at 180 DEG C/h.
Further, it is 8wt% that described polyvinyl alcohol accounts for the percentage by weight of soft magnetic materials total amount, and it is 10wt% that described Graphene weight accounts for the percentage by weight of polyvinyl alcohol.
The dispersibility of the material that embodiment 1-3 is prepared and the quality of end article have been observed, it has been found that the material scatter that embodiment 2 prepares is suitable for, and in manufacture course of products, bond effect is good, and the homogeneous careful quality of product is high.
Claims (6)
1. the increasing material adding Graphene manufactures a magnetic core material, including soft magnetic materials, hard magnetic material, binding agent, it is characterised in that: described binding agent has been also added with Graphene.
2. a kind of increasing material adding Graphene according to claim 1 manufactures magnetic core material, it is characterised in that: described binding agent is polyvinyl alcohol.
3. a kind of increasing material adding Graphene according to claim 1 manufactures magnetic core material, it is characterised in that: described hard magnetic material is neodymium iron boron hard magnetic material.
4. a kind of increasing material adding Graphene according to claim 3 manufactures magnetic core material, it is characterised in that: described soft magnetic materials is by forming by the following material of mol percentage ratio: 43-47mol%Fe2O3、34-36mol%Mn3O4, the carbonyl iron dust of NiO, 25-30mol% of 11-13mol%ZnO, 15-22mol%, 4-7mol%CuO, 0.1-0.5mol%Co2O3, 4-6mol%BaO, appropriate deionized water.
5. a kind of increasing material adding Graphene according to claim 4 manufactures magnetic core material, it is characterised in that the preparation method of described soft magnetic materials is as follows:
(1) dispensing: by gross weight 1000g, weighs above material respectively by above-mentioned mol ratio and mass fraction；
(2) material with slurry: the Fe that step (1) is weighed2O3、Mn3O4, ZnO mixing, and add the deionized water and stirring of gross weight 3-5 times uniformly after, employing planetary ball mill wet grinding 3h, obtain slurry standby；
(3) adjuvant is joined: the NiO that step (1) weighed, carbonyl iron dust, CuO, Co2O3, BaO mixing, adopt Ball Mill ball milling 25-35min, put in Muffle furnace high temperature 700-800 DEG C calcining 1.5-2.5h afterwards, obtain adjuvant standby；
(4) polyvinyl alcohol will add Graphene, adopt ultrasonator to process 9-10min to uniform and stable, obtain binding liquid standby；
(5) by adjuvant and slurry mixing and stirring, at 120 DEG C, heated and stirred processes 35-45min, is slowly added to binding liquid continuously stirred 20-30min afterwards, obtains compound standby；
(6) compound is put in Muffle furnace, and in the atmosphere of inert nitrogen gas and oxygen, first calcine 3-4h at 300 DEG C, certain heating rate is adopted to be warming up to 1250 DEG C afterwards, insulation calcining 6-8h, uniform decrease in temperature is to room temperature afterwards, obtaining, wherein heating rate controls at 180-240 DEG C/h, and rate of temperature fall controls at 120-180 DEG C/h.
6. a kind of increasing material adding Graphene according to claim 5 manufactures magnetic core material, it is characterized in that, it is 6-8wt% that described polyvinyl alcohol accounts for the percentage by weight of soft magnetic materials total amount, and it is 8-10wt% that described Graphene weight accounts for the percentage by weight of polyvinyl alcohol.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129493.8A CN105788790A (en) | 2016-03-08 | 2016-03-08 | Graphene-added material for material additive manufacturing magnetic core |
| CN201710122349.6A CN106876080B (en) | 2016-03-08 | 2017-03-03 | A kind of increasing material manufacturing magnetic core material of addition graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129493.8A CN105788790A (en) | 2016-03-08 | 2016-03-08 | Graphene-added material for material additive manufacturing magnetic core |
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| CN105788790A true CN105788790A (en) | 2016-07-20 |
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| CN201610129493.8A Pending CN105788790A (en) | 2016-03-08 | 2016-03-08 | Graphene-added material for material additive manufacturing magnetic core |
| CN201710122349.6A Expired - Fee Related CN106876080B (en) | 2016-03-08 | 2017-03-03 | A kind of increasing material manufacturing magnetic core material of addition graphene |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710122349.6A Expired - Fee Related CN106876080B (en) | 2016-03-08 | 2017-03-03 | A kind of increasing material manufacturing magnetic core material of addition graphene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524233A (en) * | 2018-12-29 | 2019-03-26 | 陈亮 | A kind of ferromagnetic material mixing bonding process |
| CN109767905A (en) * | 2018-12-29 | 2019-05-17 | 陈亮 | A kind of ferromagnetic material hot press forming technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896564A (en) * | 2012-12-28 | 2014-07-02 | 天津昊高磁材有限公司 | Low resistance ferrite material |
| WO2015147928A2 (en) * | 2014-02-12 | 2015-10-01 | South Dakota Board Of Regents | Composite materials with magnetically aligned carbon nanoparticles and methods of preparation |
| CN104261811B (en) * | 2014-04-15 | 2015-10-21 | 横店集团东磁股份有限公司 | A kind of high-performance permanent-magnet ferrite and manufacture method thereof |
| CN104556998A (en) * | 2015-01-15 | 2015-04-29 | 安徽龙磁科技股份有限公司 | High-impedance magnetic core material |
| CN108831660B (en) * | 2015-10-13 | 2019-12-13 | 乐清市钜派企业管理咨询有限公司 | Composite bonded rare earth permanent magnet material |
-
2016
- 2016-03-08 CN CN201610129493.8A patent/CN105788790A/en active Pending
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2017
- 2017-03-03 CN CN201710122349.6A patent/CN106876080B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524233A (en) * | 2018-12-29 | 2019-03-26 | 陈亮 | A kind of ferromagnetic material mixing bonding process |
| CN109767905A (en) * | 2018-12-29 | 2019-05-17 | 陈亮 | A kind of ferromagnetic material hot press forming technology |
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| Publication number | Publication date |
|---|---|
| CN106876080A (en) | 2017-06-20 |
| CN106876080B (en) | 2018-08-07 |
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