CN106205938A - A kind of nano magnetic core material - Google Patents
A kind of nano magnetic core material Download PDFInfo
- Publication number
- CN106205938A CN106205938A CN201610675633.1A CN201610675633A CN106205938A CN 106205938 A CN106205938 A CN 106205938A CN 201610675633 A CN201610675633 A CN 201610675633A CN 106205938 A CN106205938 A CN 106205938A
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- Prior art keywords
- oxide
- powder
- core material
- added
- sodium silicate
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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
- H01F1/34—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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
- C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
Abstract
The invention discloses a kind of nano magnetic core material, be made up of the raw material of following weight portion: hydroxy iron powder 60 65, iron sesquioxide 10 15, manganese oxide 25 27, zinc oxide 21 23, silane coupler kh5704 5, organic siliconresin 57, polyvinyl alcohol 12, sodium silicate 79, nickel oxide 12, antimony oxide 0.4 0.5, expansion mica powder 0.3 0.4, water are appropriate；The present invention has a characteristic of the simple low cost of method, and the material prepared has high magnetic permeability, the effect such as heat-resisting and fire-resistant high-strength, high, meets the conventional electrical appliance requirement to core material.
Description
Technical field
The present invention relates to Ferrite Material technical field, particularly relate to a kind of nano magnetic core material.
Background technology
Soft magnetic materials is the magnetic material that a class has relatively low-coercivity and higher magnetic permcability, in the effect of externally-applied magnetic field
Under, soft magnetic materials shows the feature being not only prone to magnetize but also be prone to demagnetization, and soft magnetic materials is as the important merit of magnetoelectricity conversion art
One of energy material, has a wide range of applications in fields such as electronic equipment, communication and electrical equipment.Along with digital television, notebook electricity
Brain universal, electronic equipment is to light, thin, miniaturization, and this necessity of making use of momentum reduces power volume, power supply is proposed higher,
Tightened up requirement.Compound soft magnetic material is owing to having metal soft magnetic material high saturated magnetic induction and soft magnetic ferrite height electricity
The feature of resistance rate, the application in industrial technology and daily life is increasing, is subject to people's attention all the time and obtains
Study widely.Compound soft magnetic material is usually with soft magnetic metal powder as raw material, carries out organic or inorganic at particle surface exhausted
After edge processes, using powder metallurgical technique by compressing for composite powder i.e. available block soft magnetic materials.With traditional gold
Belonging to soft magnetic materials to compare, compound soft magnetic material has higher resistivity, it is possible to reduce eddy-current loss, improves the use frequency of material
Rate.But general organic or inorganic clad has non magnetic feature, after being combined with metallic magnetic grain, the most also
The saturation magnetization of material can be reduced, so resistivity of material and reduction have to improved by the most effectively technique
While magnetic loss, keeping higher density and saturation magnetization is the current emphasis studied.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of nano magnetic core material.
The present invention is achieved by the following technical solutions:
A kind of nano magnetic core material, is made up of the raw material of following weight portion: hydroxy iron powder 60-65, iron sesquioxide 10-
15, manganese oxide 25-27, zinc oxide 21-23, silane coupler kh5704-5, organic siliconresin 5-7, polyvinyl alcohol 1-2, silicic acid
Sodium 7-9, nickel oxide 1-2, antimony oxide 0.4-0.5, expansion mica powder 0.3-0.4, water are appropriate；
Described a kind of nano magnetic core material, is made up of step in detail below:
(1) by hydroxy iron powder, iron sesquioxide, manganese oxide, zinc oxide and silane coupler kh570 mixing and ball milling 0.5-1h, so
After by the organic siliconresin acetone solution of 4-6 times amount, more above-mentioned coupling magnetic powder is added in organic silicon solution stir 0.6-1h,
Then it is dried after 1-2h pulverizes standby in 40-50 ° of C；
(2) remaining remaining material is mixed in addition to polyvinyl alcohol and sodium silicate, after grinding distribution is uniform under 120-200 ° of C
Vacuum annealing 20-40min, pulverizes standby after annealing；
(3) be dissolved in water the poly-vinyl alcohol solution making concentration at 8-10% by polyvinyl alcohol, then material step (2) obtained
Being added in poly-vinyl alcohol solution, ultrasonic disperse uniformly becomes slip；
(4) product that step (1) obtains is added in step (3), is added to spray drying tower internal spraying after mixing and stirring and makes
Grain, controls inlet temperature at 300-340 ° of C, and outlet temperature controls at 100-110 ° of C, and then granule is crossed 60 mesh sieves, uses
Full-automatic powder moulding machine cold moudling；
(5) blank made is impregnated in sodium silicate solution, evacuation, takes out material after keeping 3min, dry, then at nitrogen
Under gas shielded, under 1000-1200 ° of C, sinter 120-160min, after terminating, be cooled to room temperature.
The invention have the advantage that the present invention use iron powder replace ferrum oxide prepare core material have relatively low coercivity and
After loss characteristic, and other powder body couplings and at one layer of organic siliconresin of Surface coating, increase density, decrease core material
Volume and there is higher resistivity, high saturated magnetic induction and pcrmeability, it is possible to reduce eddy-current loss and improve material
The function of the use frequency of material, the present invention improves the caking property strengthened between granule, reduces briquetting pressure, it is to avoid when compacting
Blank aliquation, the fried quality problems such as stricture of vagina, cracking, after formation in dipping sodium silicate, greatly reduce compressing residual pores
Gap and the problem of stress, and improve fire-resistant and heat-resisting performance, the nickel oxide of interpolation, antimony oxide and expansion mica powder
Being used in mixed way the performance of the aspect such as fire-resistant, heat-resisting and corrosion-resistant greatly improving magnetic core, the present invention has method and simply becomes
This lowest characteristic, and the material prepared has high magnetic permeability, the effect such as heat-resisting and fire-resistant high-strength, high, meets conventional electrical appliance pair
The requirement of core material.
Detailed description of the invention
A kind of nano magnetic core material, is made up of the raw material of following weight portion: hydroxy iron powder 60, iron sesquioxide 10,
Manganese oxide 25, zinc oxide 21, silane coupler kh5704, organic siliconresin 5, polyvinyl alcohol 1, sodium silicate 7, nickel oxide 1, three oxygen
Change two antimony 0.4, to expand mica powder 0.3, water appropriate；
Described a kind of nano magnetic core material, is made up of step in detail below:
(1) by hydroxy iron powder, iron sesquioxide, manganese oxide, zinc oxide and silane coupler kh570 mixing and ball milling 0.5h, then
By the organic siliconresin acetone solution of 4 times amount, then it is added to above-mentioned coupling magnetic powder in organic silicon solution stir 0.6h, then exists
40 ° of C are dried after 1h pulverizes standby；
(2) remaining remaining material is mixed in addition to polyvinyl alcohol and sodium silicate, grinding distribution uniformly after under 120 ° of C vacuum
Annealing 20min, pulverizes standby after annealing；
(3) polyvinyl alcohol is dissolved in water makes the poly-vinyl alcohol solution that concentration is 8%, then the material that step (2) obtains is added to
In poly-vinyl alcohol solution, ultrasonic disperse uniformly becomes slip；
(4) product that step (1) obtains is added in step (3), is added to spray drying tower internal spraying after mixing and stirring and makes
Grain, controls at 300 ° of C by inlet temperature, and outlet temperature controls at 100 ° of C, then granule is crossed 60 mesh sieves, uses full-automatic powder
End forming machine cold moudling；
(5) blank made is impregnated in sodium silicate solution, evacuation, takes out material after keeping 3min, dry, then at nitrogen
Under gas shielded, under 1000 ° of C, sinter 120min, after terminating, be cooled to room temperature.
The soft magnetic ferrite prepared according to specific embodiment, carries out performance test to it, and result is as follows:
Saturation flux density (T): 0.97, magnetic loss (W/Kg): 62, coercivity (A/m): 17, Curie temperature (° C): 175, work
Frequency (MHz): 0.12.
Claims (2)
1. a nano magnetic core material, it is characterised in that be made up of the raw material of following weight portion: hydroxy iron powder 60-65, three
Aoxidize two ferrum 10-15, manganese oxide 25-27, zinc oxide 21-23, silane coupler kh5704-5, organic siliconresin 5-7, polyethylene
Alcohol 1-2, sodium silicate 7-9, nickel oxide 1-2, antimony oxide 0.4-0.5, expansion mica powder 0.3-0.4, water are appropriate.
A kind of nano magnetic core material, it is characterised in that be made up of step in detail below:
(1) by hydroxy iron powder, iron sesquioxide, manganese oxide, zinc oxide and silane coupler kh570 mixing and ball milling 0.5-1h, so
After by the organic siliconresin acetone solution of 4-6 times amount, more above-mentioned coupling magnetic powder is added in organic silicon solution stir 0.6-1h,
Then it is dried after 1-2h pulverizes standby in 40-50 ° of C；
(2) remaining remaining material is mixed in addition to polyvinyl alcohol and sodium silicate, after grinding distribution is uniform under 120-200 ° of C
Vacuum annealing 20-40min, pulverizes standby after annealing；
(3) be dissolved in water the poly-vinyl alcohol solution making concentration at 8-10% by polyvinyl alcohol, then material step (2) obtained
Being added in poly-vinyl alcohol solution, ultrasonic disperse uniformly becomes slip；
(4) product that step (1) obtains is added in step (3), is added to spray drying tower internal spraying after mixing and stirring and makes
Grain, controls inlet temperature at 300-340 ° of C, and outlet temperature controls at 100-110 ° of C, and then granule is crossed 60 mesh sieves, uses
Full-automatic powder moulding machine cold moudling；
(5) blank made is impregnated in sodium silicate solution, evacuation, takes out material after keeping 3min, dry, then at nitrogen
Under gas shielded, under 1000-1200 ° of C, sinter 120-160min, after terminating, be cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675633.1A CN106205938A (en) | 2016-08-17 | 2016-08-17 | A kind of nano magnetic core material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675633.1A CN106205938A (en) | 2016-08-17 | 2016-08-17 | A kind of nano magnetic core material |
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| Publication Number | Publication Date |
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| CN106205938A true CN106205938A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610675633.1A Pending CN106205938A (en) | 2016-08-17 | 2016-08-17 | A kind of nano magnetic core material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273213A (en) * | 2018-11-14 | 2019-01-25 | 岳西县鸿腾电子有限公司 | A kind of inductance core for compact package body |
| CN109754982A (en) * | 2018-12-04 | 2019-05-14 | 天长市昭田磁电科技有限公司 | Magnetic core of compound magnetic material |
| CN109851345A (en) * | 2018-12-04 | 2019-06-07 | 天长市昭田磁电科技有限公司 | Ferrite core material processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241792A (en) * | 2007-02-06 | 2008-08-13 | 昆山尼赛拉电子器材有限公司 | Mn-Zn soft magnetic ferrite and its production technology |
| CN104557003A (en) * | 2015-01-15 | 2015-04-29 | 安徽龙磁科技股份有限公司 | Vehicle ferrite magnetic core material |
| CN105060874A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Manganese zinc ferrite material for increasing electrical resistivity |
-
2016
- 2016-08-17 CN CN201610675633.1A patent/CN106205938A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241792A (en) * | 2007-02-06 | 2008-08-13 | 昆山尼赛拉电子器材有限公司 | Mn-Zn soft magnetic ferrite and its production technology |
| CN104557003A (en) * | 2015-01-15 | 2015-04-29 | 安徽龙磁科技股份有限公司 | Vehicle ferrite magnetic core material |
| CN105060874A (en) * | 2015-08-10 | 2015-11-18 | 天长市昭田磁电科技有限公司 | Manganese zinc ferrite material for increasing electrical resistivity |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273213A (en) * | 2018-11-14 | 2019-01-25 | 岳西县鸿腾电子有限公司 | A kind of inductance core for compact package body |
| CN109754982A (en) * | 2018-12-04 | 2019-05-14 | 天长市昭田磁电科技有限公司 | Magnetic core of compound magnetic material |
| CN109851345A (en) * | 2018-12-04 | 2019-06-07 | 天长市昭田磁电科技有限公司 | Ferrite core material processing method |
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Application publication date: 20161207 |
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