CN111362684A - 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 - Google Patents
一种移动谷点提高MnZn功率铁氧体材料Bs的方法 Download PDFInfo
- Publication number
- CN111362684A CN111362684A CN201911144085.XA CN201911144085A CN111362684A CN 111362684 A CN111362684 A CN 111362684A CN 201911144085 A CN201911144085 A CN 201911144085A CN 111362684 A CN111362684 A CN 111362684A
- Authority
- CN
- China
- Prior art keywords
- valley point
- moving
- sintering
- power ferrite
- mnzn power
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 100
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005245 sintering Methods 0.000 claims abstract description 38
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003292 glue Substances 0.000 claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 17
- 230000000996 additive effect Effects 0.000 claims abstract description 17
- 238000005469 granulation Methods 0.000 claims abstract description 17
- 230000003179 granulation Effects 0.000 claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 10
- UPWOEMHINGJHOB-UHFFFAOYSA-N cobalt(III) oxide Inorganic materials O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 abstract description 14
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 3
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- C04B35/2658—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
- C04B35/01—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
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
- C04B35/6262—Milling of calcined, sintered clinker or ceramics
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62685—Treating the starting powders individually or as mixtures characterised by the order of addition of constituents or additives
-
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
-
- 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
-
- 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
- C04B35/64—Burning or sintering processes
-
- 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
-
- 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
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, 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
- C04B2235/3262—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
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
本发明公开了一种移动谷点提高MnZn功率铁氧体材料Bs的方法，涉及MnZn功率铁氧体材料制备领域，包括以下步骤：1）将Fe2O3、MnO和ZnO混合，进行一次砂磨；2）加入胶水，并进行喷雾造粒，随后进行预烧，得到预烧料；3）在预烧料中加入添加剂，进行二次砂磨；4）在二次砂磨料中加入胶水，喷雾造粒，压制成标环后烧结，本发明通过控制Fe2O3含量与Co2O3含量来控制和移动谷点，降低损耗的同时，提高材料的Bs，解决了现有技术中无法同时兼顾移动谷点，降低损耗和提高材料的Bs的问题，且本发明方法较为简便，适合工业化。
Description
技术领域
本发明涉及MnZn功率铁氧体材料制备领域，尤其涉及一种移动谷点提高MnZn功率铁氧体材料Bs的方法。
背景技术
现有的MnZn功率铁氧体材料移动谷点，通常认为主配方中Fe2O3含量高的损耗谷点往低温移动，Fe2O3含量低的损耗谷点往高温移动，或者通过控制Fe2O3和ZnO含量移动谷点，减少ZnO含量提高MnZn功率铁氧体材料的Bs。现有的技术，依靠Fe2O3含量高低移动谷点，会使高温损耗增加或Bs降低，Fe2O3含量高，谷点往低温移动，高温特别是100℃之后的损耗会增加，降低Fe2O3含量，会使材料的Bs降低。通过控制Fe2O3和ZnO含量移动谷点，减少ZnO含量提高MnZn功率铁氧体材料的Bs的技术，会使材料的损耗增加。因此现有的技术条件下，提高Bs、降低损耗和移动谷点之间有一定的矛盾，无法兼顾，因为其本质还是通过Fe2O3和ZnO含量控制谷点的移动。
例如，一种在中国专利文献上公开的“一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法”，其公告号CN107935579A，其公开了一种在产品研发及产品批量生产中精确控制宽温低温度系数锰锌铁氧体粉料谷点的方法。所述锰锌铁氧体粉料包括主成分和添加剂；所述主成分由Fe2O3、ZnO和Mn3O4组成；所述ZnO占主成分的重量百分比为4～9wt％；所述Fe2O3占主成分的重量百分比根据公式Fe2O3(wt％)＝72.88A*ZnO(wt％)计算；其中控制谷点为80℃时，A值为0.2278；其中控制谷点为90℃时，A值为0.2313；其中控制谷点为100℃时，A值为0.2358。然而，该发明通过主配方中的Fe2O3和ZnO含量来控制谷点，未涉及如何降低损耗，提高Bs等问题，且通过该方法控制谷点也会使材料的损耗增加。
发明内容
本发明是为了克服目前通过主配方中控制Fe2O3和ZnO含量移动谷点，减少ZnO含量提高MnZn功率铁氧体材料的Bs的技术，会使材料的损耗增加等问题，提出了一种移动谷点提高MnZn功率铁氧体材料Bs的方法。
为了实现上述目的，本发明采用以下技术方案：
一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将Fe2O3、MnO和ZnO混合，进行一次砂磨；
2)加入胶水，并进行喷雾造粒，随后进行预烧，得到预烧料；
3)在预烧料中加入添加剂，进行二次砂磨；
4)在二次砂磨料中加入胶水，喷雾造粒，压制成标环后烧结。
作为优选，步骤1)中各组分配比：Fe2O3为52.9-53.3mol％，MnO为38.3-39.08mol％，ZnO为7.62-8.8mol％。
作为优选，步骤3)中添加剂包括以下组分且占预烧料的质量百分比为：0.03-0.08wt％CaCO3，0.015-0.04wt％ZrO2，0.43-0.52wt％Co2O3，0.05-0.2wt％SnO2。
本发明通过调整Fe2O3含量与Co2O3含量配比，使谷点往高温方向移动，提高Bs的同时，降低高温损耗。
本发明的原理在于，材料的谷点是受磁晶各向异性常数K1与温度的关系的影响，在K1为0处，就是材料的谷点处。在本发明的主配方中，即Fe2O3、MnO和ZnO的配比要控制在一定的范围，这是由于当主配方中Fe2O3含量超过53.3mol％，会使材料的涡流损耗增加，低于52.9mol％，则不能与Co2O3协同有效降低材料的磁晶各向异性常数K1。其次，相对于主配方的总重量而言，本发明Co2O3含量必须在0.43％-0.52％；这是由于Co2O3含量低于0.43％时，增加Fe2O3含量，会使谷点往低温方向移动，高于0.52％时，会使材料的损耗变差，主要是因为过量的Co2O3，会使材料的磁晶各向异性常数K2变大，导致损耗增加。因此，在原配方的基础上，包括添加剂，通过提高原配方的Fe2O3含量，将Co2O3含量控制在相对于主配方的总重量的0.43％--0.52％，可以使谷点往高温方向移动，来降低高温损耗，提高材料的Bs。而这与现有技术中通常认为的提高Fe2O3含量谷点往低温移动，降低Fe2O3含量谷点往高温移动是相违背的。
而现有技术K1为0是通过控制Fe2O3含量的高低或控制Fe2O3与ZnO的配比来控制K1与温度的关系，即通过调整Fe2O3含量的高低或控制Fe2O3和ZnO的配比来移动谷点，其并不能同时兼顾移动谷点，降低损耗和提高材料的Bs；虽然，现有的技术在移动谷点方面，也会考虑到用Co2O3来调整，但现有技术认为，加入Co2O3谷点就肯定往低温方向移动，因此现有技术中Co2O3通常是认为对谷点往低温方向移动有帮助，有利于降低室温损耗，所以Co2O3的添加量也不会多，一般控制在预烧料总重量的0.35wt％以下，其并没有考虑到Co2O3的量在一定范围内时，谷点会出现相反的移动，即Fe2O3含量的增加，导致谷点往高温移动。
作为优选，所述一次砂磨和二次砂磨的料球水比例为1:5-7:0.4-0.6，砂磨时间为0.5-1.5h。
在该条件配比下，砂磨更加均匀。
作为优选，步骤2)中加入预烧料总质量10％、质量分数为7.5％的胶水。
作为优选，步骤2)中所述预烧为在回转窑中900-1000℃下预烧。
作为优选，步骤3)中加入二次砂磨料总质量10％、质量分数为7.5％的胶水。
作为优选，步骤4)中所述压制的压力为6-8Mpa。
因此，本发明具有如下有益效果：本发明通过控制Fe2O3含量与Co2O3含量来控制和移动谷点，降低损耗的同时，提高材料的Bs，解决了现有技术中无法同时兼顾移动谷点，降低损耗和提高材料的Bs的问题，且本发明方法较为简便，适合工业化。
具体实施方式
下面结合具体实施方式对本发明做进一步的描述。
实施例1：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将52.9mol％的Fe2O3、38.3mol％的MnO和8.8mol％的ZnO混合，在料球水比例为1:5:0.4下一次砂磨1.5h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中900℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.44％，SnO2为0.05％，随后在料球水比例为1:5:0.4下二次砂磨1.5h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在6Mpa压制成标环后烧结。
实施例2：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将53.3mol％的Fe2O3、39.08mol％的MnO和7.62mol％的ZnO混合，在料球水比例为1:7:0.6下一次砂磨0.5h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中1000℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.48％，SnO2为0.05％，随后在料球水比例为1:7:0.6下二次砂磨0.5h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在8Mpa压制成标环后烧结。
实施例3：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将53.1mol％的Fe2O3、38.5mol％的MnO和8.4mol％的ZnO混合，在料球水比例为1:6:0.5下一次砂磨1h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中950℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.52％，SnO2为0.05％，随后在料球水比例为1:6:0.5下二次砂磨1h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在7Mpa压制成标环后烧结。
对比例1：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将52.6mol％的Fe2O3、38.6mol％的MnO和8.8mol％的ZnO混合，在料球水比例为1:5:0.4下一次砂磨1.5h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中900℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.44％，SnO2为0.05％，随后在料球水比例为1:5:0.4下二次砂磨1.5h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在6Mpa压制成标环后烧结。
对比例2：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将53.3mol％的Fe2O3、39.08mol％的MnO和7.62mol％的ZnO混合，在料球水比例为1:7:0.6下一次砂磨0.5h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中1000℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.35％，SnO2为0.05％，随后在料球水比例为1:7:0.6下二次砂磨0.5h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在8Mpa压制成标环后烧结。
对比例3：一种移动谷点提高MnZn功率铁氧体材料Bs的方法，包括以下步骤：
1)将53.5mol％的Fe2O3、38.9mol％的MnO和7.6mol％的ZnO混合，在料球水比例为1:6:0.5下一次砂磨1h；
2)加入预烧料总质量10％、质量分数为7.5％的胶水，并进行喷雾造粒，随后在回转窑中950℃下预烧，得到预烧料；
3)在预烧料中加入包括以下组分的添加剂且占预烧料的质量百分比为：CaCO3为0.03％、ZrO2为0.04％，Co2O3为0.52％，SnO2为0.05％，随后在料球水比例为1:6:0.5下二次砂磨1h；
4)在二次砂磨料中加入二次砂磨料总质量10％、质量分数为7.5％的胶水，喷雾造粒，在7Mpa压制成标环后烧结。
对实施例和对比例制备得到的MnZn功率铁氧体材料的谷点和Bs进行测试，所得数据如下表所示。
表1：实施例及对比例测试数据表。
从上表可知，实施例1和对比例1只是Fe2O3含量不同，两者的Co2O3含量相同，实施例1中Fe2O3含量高，谷点却往高温方向移动，对比例1中Fe2O3含量低，谷点却往低温方向移动，这些都是因为加入了一定量的Co2O3所致。同时Fe2O3含量高的，Bs也高。
实施例2和对比例2只是Co2O3含量不同，比较例2中的Co2O3含量不在本发明范围内，所以Fe2O3含量多时，谷点往低温方向移动。
实施例3和对比例3对比，其中对比例3中的Fe2O3和ZnO的含量超出了本发明的范围，损耗偏高。
Claims (8)
1.一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，包括以下步骤：
1）将Fe2O3、MnO和ZnO混合，进行一次砂磨；
2）加入胶水，并进行喷雾造粒，随后进行预烧，得到预烧料；
3）在预烧料中加入添加剂，进行二次砂磨；
4）在二次砂磨料中加入胶水，喷雾造粒，压制成标环后烧结。
2.根据权利要求1所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤1）中各组分配比：Fe2O3为52.9-53.3mol%，MnO为38.3-39.08mol%，ZnO为7.62-8.8mol%。
3.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤3）中添加剂包括以下组分且占预烧料的质量百分比为：0.03-0.08wt%CaCO3，0.015-0.04 wt % ZrO2，0.43-0.52 wt % Co2O3，0.05-0.2 wt % SnO2。
4.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，所述一次砂磨和二次砂磨的料球水比例为1:5-7:0.4-0.6，砂磨时间为0.5-1.5h。
5.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤2）中加入预烧料总质量10%、质量分数为7.5%的胶水。
6.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤2）中所述预烧为在回转窑中900-1000℃下预烧。
7.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤3）中加入二次砂磨料总质量10%、质量分数为7.5%的胶水。
8.根据权利要求1或2所述的一种移动谷点提高MnZn功率铁氧体材料Bs的方法，其特征在于，步骤4）中所述压制的压力为6-8Mpa。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144085.XA CN111362684B (zh) | 2019-11-20 | 2019-11-20 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
| EP20889372.7A EP4063338A4 (en) | 2019-11-20 | 2020-07-15 | METHOD FOR INCREASING BS OF MNZN POWER FERRITE MATERIAL BY MOVING VALLEY POINT |
| US17/778,430 US20220411335A1 (en) | 2019-11-20 | 2020-07-15 | Method for Improving Bs of MnZn Power Ferrite Material by Moving Valley Point |
| PCT/CN2020/101991 WO2021098243A1 (zh) | 2019-11-20 | 2020-07-15 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144085.XA CN111362684B (zh) | 2019-11-20 | 2019-11-20 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111362684A true CN111362684A (zh) | 2020-07-03 |
| CN111362684B CN111362684B (zh) | 2022-01-18 |
Family
ID=71202050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911144085.XA Active CN111362684B (zh) | 2019-11-20 | 2019-11-20 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220411335A1 (zh) |
| EP (1) | EP4063338A4 (zh) |
| CN (1) | CN111362684B (zh) |
| WO (1) | WO2021098243A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098243A1 (zh) * | 2019-11-20 | 2021-05-27 | 横店集团东磁股份有限公司 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005306668A (ja) * | 2004-04-22 | 2005-11-04 | Tdk Corp | フェライト焼結体 |
| CN107459344A (zh) * | 2017-07-10 | 2017-12-12 | 横店集团东磁股份有限公司 | 一种宽温低损耗且高Bs的MnZn铁氧体材料及其制造方法 |
| CN108821760A (zh) * | 2018-06-05 | 2018-11-16 | 横店集团东磁股份有限公司 | 一种降低负温损耗的MnZn功率铁氧体材料及其制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167272A (ja) * | 2000-11-28 | 2002-06-11 | Minebea Co Ltd | Ｍｎ−Ｚｎフェライトの製造方法 |
| CN102693803B (zh) * | 2012-02-23 | 2017-02-15 | 横店集团东磁股份有限公司 | 一种宽温低损耗MnZn功率铁氧体及其制备方法 |
| CN104402424B (zh) * | 2014-11-07 | 2017-10-24 | 乳源东阳光磁性材料有限公司 | 高饱和磁通密度、高直流叠加、高居里温度的镍锌铁氧体材料及其制备方法 |
| CN105461296B (zh) * | 2015-11-20 | 2018-12-14 | 无锡斯贝尔磁性材料有限公司 | 一种高bs低损耗锰锌铁氧体磁性材料及其制备方法 |
| CN106587979B (zh) * | 2016-11-17 | 2019-04-05 | 横店集团东磁股份有限公司 | 一种高磁导率低损耗MnZn铁氧体材料及其制备方法 |
| CN107935579B (zh) | 2017-12-13 | 2021-06-29 | 上海宝钢磁业有限公司 | 一种控制宽温低温度系数锰锌铁氧体粉料谷点的方法 |
| CN108863339B (zh) * | 2018-07-16 | 2021-03-05 | 横店集团东磁股份有限公司 | 一种应用于高频大磁场变压器上的宽温低损耗MnZn铁氧体材料 |
| CN111362684B (zh) * | 2019-11-20 | 2022-01-18 | 横店集团东磁股份有限公司 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
-
2019
- 2019-11-20 CN CN201911144085.XA patent/CN111362684B/zh active Active
-
2020
- 2020-07-15 WO PCT/CN2020/101991 patent/WO2021098243A1/zh unknown
- 2020-07-15 US US17/778,430 patent/US20220411335A1/en active Pending
- 2020-07-15 EP EP20889372.7A patent/EP4063338A4/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005306668A (ja) * | 2004-04-22 | 2005-11-04 | Tdk Corp | フェライト焼結体 |
| CN107459344A (zh) * | 2017-07-10 | 2017-12-12 | 横店集团东磁股份有限公司 | 一种宽温低损耗且高Bs的MnZn铁氧体材料及其制造方法 |
| CN108821760A (zh) * | 2018-06-05 | 2018-11-16 | 横店集团东磁股份有限公司 | 一种降低负温损耗的MnZn功率铁氧体材料及其制备方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098243A1 (zh) * | 2019-11-20 | 2021-05-27 | 横店集团东磁股份有限公司 | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111362684B (zh) | 2022-01-18 |
| WO2021098243A1 (zh) | 2021-05-27 |
| US20220411335A1 (en) | 2022-12-29 |
| EP4063338A4 (en) | 2023-12-20 |
| EP4063338A1 (en) | 2022-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111943658B (zh) | 一种宽温低损耗MnZn铁氧体材料及其制备方法 | |
| CN110128124B (zh) | 一种宽温超低损耗软磁铁氧体材料及其制备方法 | |
| CN108947513B (zh) | 一种低压低温烧结制备的功率镍锌铁氧体及其制备方法 | |
| CN104529425A (zh) | 一种宽温高磁导率MnZn铁氧体材料及其制造方法 | |
| CN112321293A (zh) | 一种高磁导率高频高阻抗高居里温度锰锌铁氧体材料及其制备方法 | |
| CN102682946A (zh) | 一种兼具双重特性的MnZn铁氧体磁心及制造方法 | |
| CN100340524C (zh) | 高居里温度低损耗双五千锰锌系铁氧体及其制备方法 | |
| CN102751065A (zh) | 宽温宽频低损耗MnZn功率铁氧体材料及其制备方法 | |
| CN103524124A (zh) | 一种高磁导率MnZn铁氧体材料的烧结方法 | |
| JP3584438B2 (ja) | Ｍｎ−Ｚｎフェライトおよびその製造方法 | |
| CN113956028A (zh) | 一种高温低损耗MnZn功率铁氧体及其制备方法 | |
| CN114773046A (zh) | 一种高饱和磁通密度低损耗NiCuZn软磁铁氧体材料及其制备方法 | |
| CN113277840A (zh) | 一种高频高工作磁密低损耗锰锌铁氧体及其制备方法 | |
| CN111362684B (zh) | 一种移动谷点提高MnZn功率铁氧体材料Bs的方法 | |
| CN112573913A (zh) | 一种宽带高导磁率、高居里温度Mn-Zn铁氧体材料及其制备方法与应用 | |
| CN107089828B (zh) | 一种宽温宽频低比磁导率温度系数的锰锌高磁导率材料及其制备方法 | |
| TW200421360A (en) | Electromagnetic wave absorber formed of Mn-Zn ferrite | |
| WO2023005782A1 (zh) | 一种Mn-Zn铁氧体材料及其制备方法 | |
| CN101412621B (zh) | 高磁导率高饱和磁感应强度MnZn铁氧体材料及其制备方法 | |
| CN113087515B (zh) | 高饱和磁感应强度和宽温低磁芯损耗锰锌铁氧体及其制备方法和四氟铝酸钾的应用 | |
| US20220009837A1 (en) | MnZn FERRITE MATERIAL WITH WIDE TEMPERATURE RANGE AND LOW CONSUMPTION, AND PREPARATION METHOD THEREOF | |
| EP0980857B1 (en) | A Mn-Zn ferrite | |
| CN115677337B (zh) | 一种功率铁氧体材料及其制备方法与应用 | |
| CN101183586A (zh) | 高磁导率、低thd软磁铁氧体磁性材料及其制备方法 | |
| CN102745981A (zh) | 较高磁导率宽温低损耗MnZn铁氧体材料及制备方法 |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |