CN109626980A - A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide - Google Patents

A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide Download PDF

Info

Publication number
CN109626980A
CN109626980A CN201811467794.7A CN201811467794A CN109626980A CN 109626980 A CN109626980 A CN 109626980A CN 201811467794 A CN201811467794 A CN 201811467794A CN 109626980 A CN109626980 A CN 109626980A
Authority
CN
China
Prior art keywords
parts
titanium dioxide
modified nano
grade titanium
nano grade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811467794.7A
Other languages
Chinese (zh)
Inventor
徐杰
周福林
张文军
曾性儒
王玉志
张宗仁
徐尔明
董文龙
陶天亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECHNOLOGY Co Ltd
Original Assignee
TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECHNOLOGY Co Ltd filed Critical TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECHNOLOGY Co Ltd
Priority to CN201811467794.7A priority Critical patent/CN109626980A/en
Publication of CN109626980A publication Critical patent/CN109626980A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
    • 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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2625—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing magnesium
    • 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
    • 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
    • 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
    • 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
    • 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
    • C04B2235/32—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
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/32—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
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/32—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
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/32—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
    • 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
    • C04B2235/32—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
    • C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3293—Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO]
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/407—Copper
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The present invention provides a kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide, belongs to magnetic ferrite magnetic core material technical field, and the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide includes following raw material: Fe2O3、MnO、ZnO、V2O5, SrO, 0.3-0.8 parts of copper powder, modified Nano grade titanium dioxide, SiO2、SnO2, BaO, MgO and TcO2；Preparation method is the following steps are included: (1) weighs raw material；(2) ball milling, pre-burning；(3) secondary ball milling；(4) disperse, be pressed into base；(5) it is sintered.Magnetic ferrite magnetic core material produced by the present invention containing modified Nano grade titanium dioxide has greatly improved in the indexs such as power loss, frequency characteristic, Curie temperature, saturation flux density.

Description

A kind of magnetic ferrite magnetic core material and its system containing modified Nano grade titanium dioxide Preparation Method
Technical field
The invention belongs to magnetic ferrite magnetic core material technical fields, and in particular to one kind contains modified Nano grade titanium dioxide Magnetic ferrite magnetic core material of titanium and preparation method thereof.
Background technique
High magnetic conductivity ferrite magnetic powder, magnetic core are to realize the electronic equipments such as program-controlled communication, digital technology, network communication colour TV In be used as the products such as inductor, filter, pulse transformer make its miniaturization, the essential electronic material of lightweight, constantly The initial permeability in magnetic material is improved, is always the pursuit for the engineers and technicians and production firm for being engaged in the profession, I The traditional conventional ceramic technique of national expenditures develops existing more than 40 years history of high-permeability material, up to the present, raw with conventional ceramic technique The high-permeability material of production can only achieve 10000 or so, and the performance indicator of material, such as loss, frequency characteristic, Curie temperature It is all unsatisfactory.
Summary of the invention
The purpose of the present invention is there are problems that above-mentioned, provide a kind of containing the soft of modified Nano grade titanium dioxide Magnetic ferrites core material and preparation method thereof.
The present invention provides the following technical solutions:
A kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, the original including following parts by weight Material: Fe2O350-60 parts, 28-36 parts of MnO, 10-16 parts of ZnO, V2O50.3-0.7 parts, 0.4-0.8 parts of SrO, copper powder 0.3- 0.8 part, 0.9-2.1 parts of modified Nano grade titanium dioxide, SiO20.8-1.8 parts, SnO21.2-2.4 parts, 0.9-2.3 parts of BaO, 1.1-2.3 parts of MgO and TcO21.4-2.8 part；
The modified Nano grade titanium dioxide is Nano titanium dioxide 0.8-1.2 parts, nano-sized carbon 0.01- by mass fraction 0.03 part, 0.02-0.03 parts of crosslinking agent, 0.01-0.04 parts of coupling agent and 0.02-0.03 parts of organotin mixing, crush system at drying At.
Further, the raw material including following parts by weight: Fe2O352 parts, 30 parts of MnO, 12 parts of ZnO, V2O50.3 Part, 0.5 part of SrO, 0.4 part of copper powder, 0.9 part of modified Nano grade titanium dioxide, SiO21.5 parts, SnO21.8 parts, BaO 2.1 Part, 1.2 parts of MgO and TcO21.8 part；
The modified Nano grade titanium dioxide is 1 part of Nano titanium dioxide, 0.01 part of nano-sized carbon, crosslinking by mass fraction 0.03 part of agent, 0.03 part of coupling agent and 0.02 part of organotin mixing, drying, crushing are made.
Further, the raw material including following parts by weight: Fe2O355 parts, 32 parts of MnO, 13 parts of ZnO, V2O50.5 Part, 0.6 part of SrO, 0.55 part of copper powder, 1.5 parts of modified Nano grade titanium dioxide, SiO21.3 parts, SnO21.8 parts, BaO 1.6 Part, 1.7 parts of MgO and TcO22.1 part；
The modified Nano grade titanium dioxide is 1 part of Nano titanium dioxide, 0.02 part of nano-sized carbon, crosslinking by mass fraction 0.025 part of agent, 0.025 part of coupling agent and 0.025 part of organotin mixing, drying, crushing are made.
Further, the crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
Further, the crosslinking agent is cumyl peroxide.
Further, the coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
Further, the coupling agent is silane coupling agent.
A kind of preparation method of the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, including following step It is rapid:
(1) original is weighed according to the parts by weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide Material；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water be added ball milling 20-30min in ball mill, then plus Enter dispersing agent and continue ball milling 2-3h, be then spray-dried, carry out pre-burning, calcined temperature is 820-900 DEG C, burn-in time 2- 3h obtains pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water and dispersing agent is added Secondary ball milling 1-2h is carried out, is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, when temperature reaches 100-120 DEG C Afterwards, continue to keep vacuum 0.5-2h, then mix secondary ball abrasive material with modified Nano grade titanium dioxide, disperse 2-4h, finally Base is pressed into get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content In, it first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content In, it is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate again, the sintered heat insulating time is 3-4h；In 0.08%-0.12% after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of oxygen volume content.
The beneficial effects of the present invention are:
1, the magnetic ferrite magnetic core material produced by the present invention containing modified Nano grade titanium dioxide has higher straight Superimposed characteristics are flowed, solve the problems, such as that magnetic core surface texture is loose, to make product mechanical strength improve, magnetic conductivity rises, loss It reduces.
2, the magnetic ferrite magnetic core material produced by the present invention containing modified Nano grade titanium dioxide is in power loss, frequency It has greatly improved in the indexs such as rate characteristic, Curie temperature, saturation flux density.
Specific embodiment
Embodiment 1
A kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, the raw material including following weight: Fe2O350kg、MnO 28kg、ZnO 10kg、V2O50.3kg, SrO 0.4kg, copper powder 0.3kg, modified Nano grade titanium dioxide 0.9kg、SiO2 0.8kg、SnO21.2kg, BaO 0.9kg, MgO 1.1kg and TcO21.4kg；
Modified Nano grade titanium dioxide is Nano titanium dioxide 0.8kg, nano-sized carbon 0.01kg, crosslinking agent by quality kg number 0.02kg, coupling agent 0.01kg and organotin 0.02kg mixing, drying, crushing are made.
Crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
Here preferably, crosslinking agent is cumyl peroxide.
Coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
Here preferably, coupling agent is silane coupling agent.
A kind of preparation method of the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, including following step It is rapid:
(1) raw material is weighed according to the weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water be added ball milling 20-30min in ball mill, then plus Enter dispersing agent and continue ball milling 2-3h, be then spray-dried, carry out pre-burning, calcined temperature is 820-900 DEG C, burn-in time 2- 3h obtains pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water and dispersing agent is added Secondary ball milling 1-2h is carried out, is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, when temperature reaches 100-120 DEG C Afterwards, continue to keep vacuum 0.5-2h, then mix secondary ball abrasive material with modified Nano grade titanium dioxide, disperse 2-4h, finally Base is pressed into get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content In, it first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content In, it is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate again, the sintered heat insulating time is 3-4h；In 0.08%-0.12% after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of oxygen volume content.
Embodiment 2
A kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, the raw material including following weight: Fe2O360kg、MnO 36kg、ZnO16kg、V2O50.7kg, SrO 0.8kg, copper powder 0.8kg, modified Nano grade titanium dioxide 2.1kg、SiO2 1.8kg、SnO22.4kg, BaO 2.3kg, MgO 2.3kg and TcO22.8kg；
Modified Nano grade titanium dioxide is Nano titanium dioxide 1.2kg, nano-sized carbon 0.03kg, crosslinking agent by quality kg number 0.03kg, coupling agent 0.04kg and organotin 0.03kg mixing, drying, crushing are made.
Crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
Here preferably, crosslinking agent is cumyl peroxide.
Coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
Here preferably, coupling agent is silane coupling agent.
A kind of preparation method of the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, including following step It is rapid:
(1) raw material is weighed according to the weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water be added ball milling 20-30min in ball mill, then plus Enter dispersing agent and continue ball milling 2-3h, be then spray-dried, carry out pre-burning, calcined temperature is 820-900 DEG C, burn-in time 2- 3h obtains pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water and dispersing agent is added Secondary ball milling 1-2h is carried out, is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, when temperature reaches 100-120 DEG C Afterwards, continue to keep vacuum 0.5-2h, then mix secondary ball abrasive material with modified Nano grade titanium dioxide, disperse 2-4h, finally Base is pressed into get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content In, it first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content In, it is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate again, the sintered heat insulating time is 3-4h；In 0.08%-0.12% after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of oxygen volume content.
Embodiment 3
A kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, the raw material including following weight: Fe2O352kg、MnO 30kg、ZnO 12kg、V2O50.3kg, SrO 0.5kg, copper powder 0.4kg, modified Nano grade titanium dioxide 0.9kg、SiO2 1.5kg、SnO21.8kg, BaO 2.1kg, MgO 1.2kg and TcO21.8kg；
The modified Nano grade titanium dioxide by quality kg number be Nano titanium dioxide 1kg, nano-sized carbon 0.01kg, crosslinking Agent 0.03kg, coupling agent 0.03kg and organotin 0.02kg mixing, drying, crushing are made.
Crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
Here preferably, crosslinking agent is cumyl peroxide.
Coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
Here preferably, coupling agent is silane coupling agent.
A kind of preparation method of the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, including following step It is rapid:
(1) raw material is weighed according to the weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water be added ball milling 20-30min in ball mill, then plus Enter dispersing agent and continue ball milling 2-3h, be then spray-dried, carry out pre-burning, calcined temperature is 820-900 DEG C, burn-in time 2- 3h obtains pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water and dispersing agent is added Secondary ball milling 1-2h is carried out, is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, when temperature reaches 100-120 DEG C Afterwards, continue to keep vacuum 0.5-2h, then mix secondary ball abrasive material with modified Nano grade titanium dioxide, disperse 2-4h, finally Base is pressed into get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content In, it first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content In, it is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate again, the sintered heat insulating time is 3-4h；In 0.08%-0.12% after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of oxygen volume content.
Embodiment 4
A kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, the raw material including following weight: Fe2O355kg、MnO 32kg、ZnO 13kg、V2O50.5kg, SrO 0.6kg, copper powder 0.55kg, modified Nano grade titanium dioxide 1.5kg、SiO2 1.3kg、SnO21.8kg, BaO 1.6kg, MgO 1.7kg and TcO22.1kg；
The modified Nano grade titanium dioxide by quality kg number be Nano titanium dioxide 1kg, nano-sized carbon 0.02kg, crosslinking Agent 0.025kg, coupling agent 0.025kg and organotin 0.025kg mixing, drying, crushing are made.
Crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
Here preferably, crosslinking agent is cumyl peroxide.
Coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
Here preferably, coupling agent is silane coupling agent.
A kind of preparation method of the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, including following step It is rapid:
(1) raw material is weighed according to the weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water be added ball milling 20-30min in ball mill, then plus Enter dispersing agent and continue ball milling 2-3h, be then spray-dried, carry out pre-burning, calcined temperature is 820-900 DEG C, burn-in time 2- 3h obtains pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water and dispersing agent is added Secondary ball milling 1-2h is carried out, is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, when temperature reaches 100-120 DEG C Afterwards, continue to keep vacuum 0.5-2h, then mix secondary ball abrasive material with modified Nano grade titanium dioxide, disperse 2-4h, finally Base is pressed into get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content In, it first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content In, it is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate again, the sintered heat insulating time is 3-4h；In 0.08%-0.12% after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of oxygen volume content.
By the soft magnet containing modified Nano grade titanium dioxide made from embodiment 1, embodiment 2, embodiment 3, embodiment 4 Ferrite core material and common magnetic ferrite magnetic core material as a comparison case carry out performance comparison, concrete outcome such as following table It is shown:
The beneficial effects of the present invention are:
1, the magnetic ferrite magnetic core material produced by the present invention containing modified Nano grade titanium dioxide has higher straight Superimposed characteristics are flowed, solve the problems, such as that magnetic core surface texture is loose, to make product mechanical strength improve, magnetic conductivity rises, loss It reduces.
2, the magnetic ferrite magnetic core material produced by the present invention containing modified Nano grade titanium dioxide is in power loss, frequency It has greatly improved in the indexs such as rate characteristic, Curie temperature, saturation flux density.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide, which is characterized in that including following weight The raw material of number: Fe2O350-60 parts, 28-36 parts of MnO, 10-16 parts of ZnO, V2O50.3-0.7 parts, 0.4-0.8 parts of SrO, 0.3-0.8 parts of copper powder, 0.9-2.1 parts of modified Nano grade titanium dioxide, SiO20.8-1.8 parts, SnO21.2-2.4 part, BaO 0.9-2.3 parts, 1.1-2.3 parts of MgO and TcO21.4-2.8 part；
The modified Nano grade titanium dioxide is Nano titanium dioxide 0.8-1.2 parts, nano-sized carbon 0.01-0.03 by mass fraction Part, 0.02-0.03 parts of crosslinking agent, 0.01-0.04 parts of coupling agent and 0.02-0.03 parts of organotin mixing, drying, crushing are made.
2. the magnetic ferrite magnetic core material according to claim 1 containing modified Nano grade titanium dioxide, feature exist In the raw material including following parts by weight: Fe2O352 parts, 30 parts of MnO, 12 parts of ZnO, V2O50.3 part, 0.5 part of SrO, copper 0.4 part of powder, 0.9 part of modified Nano grade titanium dioxide, SiO21.5 parts, SnO21.8 parts, 2.1 parts of BaO, 1.2 parts of MgO and TcO21.8 part；
The modified Nano grade titanium dioxide is 1 part of Nano titanium dioxide, 0.01 part of nano-sized carbon, crosslinking agent by mass fraction 0.03 part, 0.03 part of coupling agent and 0.02 part of organotin mixing, drying, crushing are made.
3. the magnetic ferrite magnetic core material according to claim 1 containing modified Nano grade titanium dioxide, feature exist In: the raw material including following parts by weight: Fe2O355 parts, 32 parts of MnO, 13 parts of ZnO, V2O50.5 part, 0.6 part of SrO, copper 0.55 part of powder, 1.5 parts of modified Nano grade titanium dioxide, SiO21.3 parts, SnO21.8 parts, 1.6 parts of BaO, 1.7 parts of MgO and TcO22.1 part；
The modified Nano grade titanium dioxide is 1 part of Nano titanium dioxide, 0.02 part of nano-sized carbon, crosslinking agent by mass fraction 0.025 part, 0.025 part of coupling agent and 0.025 part of organotin mixing, drying, crushing are made.
4. the magnetic ferrite magnetic core material according to claim 1 containing modified Nano grade titanium dioxide, feature exist In: the crosslinking agent is cumyl peroxide, dibenzoyl peroxide or di-t-butyl peroxide.
5. the magnetic ferrite magnetic core material according to claim 4 containing modified Nano grade titanium dioxide, feature exist In: the crosslinking agent is cumyl peroxide.
6. the magnetic ferrite magnetic core material according to claim 1 containing modified Nano grade titanium dioxide, feature exist In: the coupling agent is silane coupling agent, titanate coupling agent or zirconium class coupling agent.
7. the magnetic ferrite magnetic core material according to claim 6 containing modified Nano grade titanium dioxide, feature exist In: the coupling agent is silane coupling agent.
8. a kind of soft magnetic ferrite magnetic containing modified Nano grade titanium dioxide as described in any one of claim 1-7 The preparation method of core material, which comprises the following steps:
(1) raw material is weighed according to the parts by weight of the magnetic ferrite magnetic core material raw material containing modified Nano grade titanium dioxide；
(2) first by Fe2O3、MnO、ZnO、V2O5, SrO, copper powder and water ball milling 20-30min in ball mill is added, add dispersion Agent continues ball milling 2-3h, is then spray-dried, and carries out pre-burning, and calcined temperature is 820-900 DEG C, and burn-in time 2-3h is obtained Pre-burning major ingredient；
(3) pre-burning major ingredient is added to the surplus stock removed except modified Nano grade titanium dioxide, water is added and dispersing agent carries out Secondary ball milling 1-2h is spray-dried, 250-300 mesh pellet processed is to get secondary ball abrasive material；
(4) heating stirred tank and being evacuated to vacuum degree is-0.08-- 0.1Mpa, after temperature reaches 100-120 DEG C, after Vacuum 0.5-2h is held in continuation of insurance, then mixes secondary ball abrasive material with modified Nano grade titanium dioxide, is dispersed 2-4h, is finally pressed into Base is to get moulded blank；
(5) above-mentioned moulded blank after molding is put into sintering furnace, in the nitrogen atmosphere of 0.08%-0.18% oxygen volume content, It first is warming up to 750-780 DEG C with 180-220 DEG C/h rate, keeps the temperature 1-2h；In the nitrogen atmosphere of 0.8%-1% oxygen volume content, It is warming up to 890-930 DEG C with 140-160 DEG C/h rate, keeps the temperature 0.5-1h；In the nitrogen atmosphere of 3%-5% oxygen volume content, then It is warming up to 1350-1400 DEG C with 90-105 DEG C/h rate, the sintered heat insulating time is 3-4h；In 0.08%-0.12% oxygen after sintering Up to the magnetic ferrite magnetic core material containing modified Nano grade titanium dioxide after cooling down in the nitrogen atmosphere of volume content.
CN201811467794.7A 2018-12-03 2018-12-03 A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide Pending CN109626980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811467794.7A CN109626980A (en) 2018-12-03 2018-12-03 A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811467794.7A CN109626980A (en) 2018-12-03 2018-12-03 A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide

Publications (1)

Publication Number Publication Date
CN109626980A true CN109626980A (en) 2019-04-16

Family

ID=66070371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811467794.7A Pending CN109626980A (en) 2018-12-03 2018-12-03 A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide

Country Status (1)

Country Link
CN (1) CN109626980A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189606A (en) * 1984-10-09 1986-05-07 Ricoh Co Ltd Metal oxide magnetic substance and magnetic film
CN102992748A (en) * 2012-11-23 2013-03-27 天长市昭田磁电科技有限公司 Preparation method of MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified nanoscale titanium dioxide
CN103295763A (en) * 2013-05-20 2013-09-11 天长市昭田磁电科技有限公司 Method for manufacturing ferromagnetic core loaded with nickel oxide
CN104557000A (en) * 2015-01-15 2015-04-29 安徽龙磁科技股份有限公司 Anti-interference ferrite magnetic core material
CN105761867A (en) * 2016-04-13 2016-07-13 天长市天豪制冷设备厂 Ferrite magnetic core material for vehicle
CN106583737A (en) * 2016-11-17 2017-04-26 安徽荣玖智能装备科技有限公司 Dense powder metallurgy magnetic ring not prone to cracking and suitable for magnetic water pump of new energy automobile and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189606A (en) * 1984-10-09 1986-05-07 Ricoh Co Ltd Metal oxide magnetic substance and magnetic film
CN102992748A (en) * 2012-11-23 2013-03-27 天长市昭田磁电科技有限公司 Preparation method of MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified nanoscale titanium dioxide
CN103295763A (en) * 2013-05-20 2013-09-11 天长市昭田磁电科技有限公司 Method for manufacturing ferromagnetic core loaded with nickel oxide
CN104557000A (en) * 2015-01-15 2015-04-29 安徽龙磁科技股份有限公司 Anti-interference ferrite magnetic core material
CN105761867A (en) * 2016-04-13 2016-07-13 天长市天豪制冷设备厂 Ferrite magnetic core material for vehicle
CN106583737A (en) * 2016-11-17 2017-04-26 安徽荣玖智能装备科技有限公司 Dense powder metallurgy magnetic ring not prone to cracking and suitable for magnetic water pump of new energy automobile and manufacturing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
（日）斋藤胜裕著，上官文峰译: "《漫画元素118》", 31 May 2015, 上海交通大学出版社 *

Similar Documents

Publication Publication Date Title
CN101386530B (en) Ni-Zn soft magnetic ferrite material and preparation method thereof
CN104891982A (en) Rare earth high-magnetic-permeability soft magnetic ferrite and preparation method thereof
CN102360916B (en) Method for manufacturing broadband high-conductivity manganese-zinc ferrite magnetic core
CN103396109B (en) High-frequency low-loss soft magnetic ferrite core material and its preparation method
CN103382100B (en) Soft-magnetic ferrite magnetic core material and preparation method thereof
CN102976741A (en) Preparation method of manganese zinc MnZn soft magnetic ferrite material containing modified nanocarbon
CN101412622A (en) High-frequency nickel-copper-zinc ferrite and preparation thereof
CN105060874A (en) Manganese zinc ferrite material for increasing electrical resistivity
CN102992752A (en) Method for preparing manganese-zinc (MnZn) soft magnetic ferrite
CN102992748B (en) Preparation method of MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified nanoscale titanium dioxide
CN104817317A (en) Good-flexibility nonperishable soft-magnetic ferrite material and preparation method thereof
CN108947513A (en) A kind of power nickel-zinc ferrite and preparation method thereof of low-pressure low-temperature sintering preparation
CN102992747B (en) Preparation method of MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified nano argil
CN102992754A (en) Preparation method of MnZn soft magnetic ferrite material with high magnetic flux density
CN105330281A (en) Preparation method of soft magnetic ferrite core material with high permeability
CN103382102B (en) Low-temperature-sintered nickel-zinc-copper soft magnetic ferrite material and preparation method thereof
CN103396112B (en) Soft magnetic ferrite material and preparation method thereof
CN103382110A (en) Mn-Zn soft-magnetic ferrite material with high magnetic permeability and preparation method thereof
CN105097172A (en) Low-magnetic-loss ferrite core material
CN102992746B (en) Preparation method of high-permeability MnZn soft magnetic ferrite
CN109626980A (en) A kind of magnetic ferrite magnetic core material and preparation method thereof containing modified Nano grade titanium dioxide
CN105481359A (en) Preparation method of high performance large power soft-magnetic ferrite magnetic core material
CN101477869B (en) Novel nickel zincium soft magnetic ferrite and manufacturing process thereof
CN114477986A (en) High-performance manganese-zinc soft magnetic ferrite material and preparation method thereof
CN104876560A (en) Thermal-shock-resisting soft magnetic ferrite material and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190416

RJ01 Rejection of invention patent application after publication