CN106396660A - MnZn soft-magnetic ferrite material with good heat stability - Google Patents

MnZn soft-magnetic ferrite material with good heat stability Download PDF

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Publication number
CN106396660A
CN106396660A CN201610761664.9A CN201610761664A CN106396660A CN 106396660 A CN106396660 A CN 106396660A CN 201610761664 A CN201610761664 A CN 201610761664A CN 106396660 A CN106396660 A CN 106396660A
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magnetic ferrite
ferrite material
good
soft magnetic
heat endurance
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CN201610761664.9A
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Inventor
瞿德林
王久如
徐升宝
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TIANCHANG ZHONGDE ELECTRONICS CO Ltd
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TIANCHANG ZHONGDE ELECTRONICS CO Ltd
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Publication of CN106396660A publication Critical patent/CN106396660A/en
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    • 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
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63424—Polyacrylates; Polymethacrylates
    • 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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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
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    • 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
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint

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  • Soft Magnetic Materials (AREA)
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Abstract

The invention discloses a MnZn soft-magnetic ferrite material with good heat stability. The material is prepared from raw materials as follows: 6mol%-12mol% of zinc oxide, 15mol%-45mol% of trimanganese tetraoxide, 45mol%-65mol% of iron oxide, 250-450 ppm of niobiumpentoxide, 300-500 ppm of titanium dioxide, 300-600 ppm of calcium carbonate, 200-500 ppm of diboron trioxide and 150-300 ppm of silicon oxide. The MnZn soft-magnetic ferrite material with good heat stability is crystalized uniformly, has few pores among crystalline grains and grain boundaries and has high magnetic conductivity and good heat stability.

Description

A kind of good MnZn soft magnetic ferrite material of heat endurance
Technical field
The present invention relates to soft magnetic ferrite technical field, the good MnZn soft magnetic ferrite material of more particularly, to a kind of heat endurance Material.
Background technology
Along with the popularization of Portable mobile electronic device, multimedia communication, the high speed development of digital network, and electromagnetism The compatible demand with fields such as electromagnetism interference, proposes the requirement of more Gao Gengxin at present to Mn-Zn Ferrite Material.With electricity The energy-saving of sub- components and parts, improves constantly heat endurance and is always engaged in chasing after of this professional engineers and technicians with magnetic conductivity Ask.
Content of the invention
The technical problem being existed based on background technology, the present invention proposes a kind of heat endurance good MnZn soft magnetic ferrite material Material, uniformly, the pore between intercrystalline, crystal boundary is few, not only has high magnetic permeability, and heat endurance is good for crystallization.
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
Preferably, the weight of zinc oxide, mangano-manganic oxide, iron oxide is than for 8-10：20-40：50-60.
Preferably, the weight ratio of five oxidation two girls, titanium dioxide, calcium carbonate, diboron trioxide, silica is for 300-400： 350-450：400-500：300-400：200-250.
Preferably, its raw material includes：
Preferably, also include modified polyacrylate sodium, modified polyacrylate sodium accounts for the 1-2wt% of raw material gross weight.
Preferably, modified polyacrylate sodium adopts following technique preparation：Opal powder, Sodium Polyacrylate, water are ground It is 20-40 μm to particle diameter, add crystallization TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter cake is washed with deionized, Dry, pulverize and obtain modified polyacrylate sodium.
Preferably, modified polyacrylate sodium adopts following technique preparation：By weight by 10-20 part opal powder, 5- 10 parts of Sodium Polyacrylates, 40-60 part water are ground to particle diameter and are 20-40 μm, add 15-25 part crystallization TiO2Continue to be ground to particle diameter For 40-80 μm, filter, filter cake is washed with deionized, 110-120 DEG C dry, pulverize and obtain modified polyacrylate sodium.
The present invention adopts conventional fabrication process to be obtained.
The present invention passes through to adjust principal component iron oxide, mangano-manganic oxide, the mol ratio of zinc oxide, suitably increases simultaneously Suitable auxiliary element silica, titanium dioxide, five oxidation two girls, diboron trioxide, calcium carbonate, and add a certain amount of modification Sodium Polyacrylate, can be effectively improved performance, so that the present invention is crystallized uniformly, and can reduce the pore between intercrystalline, crystal boundary, not only may be used Ensure that the present invention has high magnetic permeability, and heat endurance is good；In the modified polyacrylate sodium of the present invention, opal powder, poly- , through mixed grinding to certain particle diameter, mixing uniformity is fabulous for PAA, adds crystallization TiO2Grind further, opal Powder and crystallization TiO2Combination degree high, opal powder surface hydroxy density with formed all kinds of defects, lead to its with Crystallization TiO2The association reaction degree of the functional group that surface is formed is fabulous, makes the present invention not only have certain caking ability, and Good dispersion, is difficult to reunite；Modified polyacrylate sodium is fabulous with the binding ability of principal component, auxiliary element, makes that the present invention's is comprehensive Close excellent performance.
Specific embodiment
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
Also include modified polyacrylate sodium, modified polyacrylate sodium accounts for the 2wt% of raw material gross weight.
Embodiment 3
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
Also include modified polyacrylate sodium, modified polyacrylate sodium accounts for the 2wt% of raw material gross weight.
Modified polyacrylate sodium adopts following technique preparation：By weight by 10 parts of opal powders, 10 parts of polyacrylic acid Sodium, 40 parts of water are ground to particle diameter and are 20-40 μm, add 25 parts of crystallization TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter Cake is washed with deionized, and 110 DEG C dry, pulverize and obtain modified polyacrylate sodium.
Embodiment 4
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
Also include modified polyacrylate sodium, modified polyacrylate sodium accounts for the 1wt% of raw material gross weight.
Modified polyacrylate sodium adopts following technique preparation：By weight by 20 parts of opal powders, 5 parts of polyacrylic acid Sodium, 60 parts of water are ground to particle diameter and are 20-40 μm, add 15 parts of crystallization TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter Cake is washed with deionized, and 120 DEG C dry, pulverize and obtain modified polyacrylate sodium.
Embodiment 5
A kind of good MnZn soft magnetic ferrite material of heat endurance proposed by the present invention, its raw material includes：
Also include modified polyacrylate sodium, modified polyacrylate sodium accounts for the 1.2wt% of raw material gross weight.
Modified polyacrylate sodium adopts following technique preparation：Opal powder, Sodium Polyacrylate, water are ground to particle diameter and are 20-40 μm, add crystallization TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter cake is washed with deionized, and dry, pulverize Obtain modified polyacrylate sodium.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.

Claims (7)

1. a kind of good MnZn soft magnetic ferrite material of heat endurance is it is characterised in that its raw material includes：
2. according to claim 1 the good MnZn soft magnetic ferrite material of heat endurance it is characterised in that zinc oxide, four oxidation Three manganese, the weight of iron oxide are than for 8-10：20-40：50-60.
3. the good MnZn soft magnetic ferrite material of heat endurance according to claim 1 or claim 2 it is characterised in that five oxidation two girls, Titanium dioxide, calcium carbonate, diboron trioxide, the weight of silica are than for 300-400：350-450：400-500：300-400： 200-250.
4. the good MnZn soft magnetic ferrite material of heat endurance according to any one of claim 1-3 is it is characterised in that its raw material Including：
5. the good MnZn soft magnetic ferrite material of heat endurance according to any one of claim 1-4 is it is characterised in that also include Modified polyacrylate sodium, modified polyacrylate sodium accounts for the 1-2wt% of raw material gross weight.
6. the good MnZn soft magnetic ferrite material of heat endurance according to any one of claim 1-5 is it is characterised in that modified gather PAA adopts following technique preparation：Opal powder, Sodium Polyacrylate, water are ground to particle diameter and are 20-40 μm, adds knot Brilliant TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter cake is washed with deionized, and dry, pulverize and obtains modified polypropene Sour sodium.
7. the good MnZn soft magnetic ferrite material of heat endurance according to any one of claim 1-6 is it is characterised in that modified gather PAA adopts following technique preparation：By weight by 10-20 part opal powder, 5-10 part Sodium Polyacrylate, 40-60 part Water is ground to particle diameter and is 20-40 μm, adds 15-25 part crystallization TiO2Continue to be ground to particle diameter for 40-80 μm, filter, filter cake is used Deionized water is washed, and 110-120 DEG C dry, pulverize and obtain modified polyacrylate sodium.
CN201610761664.9A 2016-08-29 2016-08-29 MnZn soft-magnetic ferrite material with good heat stability Pending CN106396660A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402266A (en) * 2002-09-13 2003-03-12 无锡晶石磁性电子器件有限公司 Magnanese-zinc ferrite magnetic core
CN1686930A (en) * 2005-03-21 2005-10-26 乳源瑶族自治县东阳光实业发展有限公司 High additivity ferrite in manganese zinc series and preparation method thereof
CN101552067A (en) * 2008-11-27 2009-10-07 横店集团东磁股份有限公司 MnZn ferrite magnetic material with high saturation magnetization and high impedance and manufacturing method thereof
CN102993785A (en) * 2012-11-13 2013-03-27 王丕轩 Preparation method for TiO2/opal composite powder material
CN104098326A (en) * 2014-07-07 2014-10-15 电子科技大学 Manganese zinc ferrite material with low temperature coefficient, high impedance and high magnetic conductivity and preparation method thereof
CN105504884A (en) * 2014-07-21 2016-04-20 北京依依星科技有限公司 Method of preparing TiO2/opal composite powder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1402266A (en) * 2002-09-13 2003-03-12 无锡晶石磁性电子器件有限公司 Magnanese-zinc ferrite magnetic core
CN1686930A (en) * 2005-03-21 2005-10-26 乳源瑶族自治县东阳光实业发展有限公司 High additivity ferrite in manganese zinc series and preparation method thereof
CN101552067A (en) * 2008-11-27 2009-10-07 横店集团东磁股份有限公司 MnZn ferrite magnetic material with high saturation magnetization and high impedance and manufacturing method thereof
CN102993785A (en) * 2012-11-13 2013-03-27 王丕轩 Preparation method for TiO2/opal composite powder material
CN104098326A (en) * 2014-07-07 2014-10-15 电子科技大学 Manganese zinc ferrite material with low temperature coefficient, high impedance and high magnetic conductivity and preparation method thereof
CN105504884A (en) * 2014-07-21 2016-04-20 北京依依星科技有限公司 Method of preparing TiO2/opal composite powder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
夏德贵: "《软磁铁氧体制造原理与技术》", 31 December 2010, 陕西科学技术出版社 *

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Application publication date: 20170215