SI2881956T1 - Sintran feritni magnet in postopek njegove izdelave - Google Patents

Sintran feritni magnet in postopek njegove izdelave

Info

Publication number
SI2881956T1
SI2881956T1 SI201330715T SI201330715T SI2881956T1 SI 2881956 T1 SI2881956 T1 SI 2881956T1 SI 201330715 T SI201330715 T SI 201330715T SI 201330715 T SI201330715 T SI 201330715T SI 2881956 T1 SI2881956 T1 SI 2881956T1
Authority
SI
Slovenia
Prior art keywords
production method
ferrite magnet
sintered ferrite
sintered
magnet
Prior art date
Application number
SI201330715T
Other languages
English (en)
Inventor
Yoshinori Kobayashi
Seiichi Hosokawa
Etsushi Oda
Original Assignee
Hitachi Metals, 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 Hitachi Metals, Ltd. filed Critical Hitachi Metals, Ltd.
Publication of SI2881956T1 publication Critical patent/SI2881956T1/sl

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0054—Mixed oxides or hydroxides containing one rare earth metal, yttrium or scandium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/40—Cobaltates
    • 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
    • C04B35/2641—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
    • 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
    • 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
    • H01F41/0253—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 for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
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    • 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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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
    • C04B2235/327—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
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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
    • C04B2235/327—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
    • C04B2235/3277—Co3O4
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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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    • 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
    • C04B2235/605—Making or treating the green body or pre-form in a magnetic field
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/6562—Heating rate
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    • 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
    • C04B2235/6565—Cooling rate
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C04B2235/767—Hexagonal symmetry, e.g. beta-Si3N4, beta-Sialon, alpha-SiC or hexa-ferrites
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/80—Phases present in the sintered or melt-cast ceramic products other than the main phase
    • C04B2235/85—Intergranular or grain boundary phases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
SI201330715T 2012-07-31 2013-07-24 Sintran feritni magnet in postopek njegove izdelave SI2881956T1 (sl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012169569 2012-07-31
EP13824900.8A EP2881956B1 (en) 2012-07-31 2013-07-24 Sintered ferrite magnet and its production method
PCT/JP2013/069983 WO2014021149A1 (ja) 2012-07-31 2013-07-24 フェライト焼結磁石の製造方法及びフェライト焼結磁石

Publications (1)

Publication Number Publication Date
SI2881956T1 true SI2881956T1 (sl) 2017-10-30

Family

ID=50027828

Family Applications (1)

Application Number Title Priority Date Filing Date
SI201330715T SI2881956T1 (sl) 2012-07-31 2013-07-24 Sintran feritni magnet in postopek njegove izdelave

Country Status (8)

Country Link
US (1) US9601247B2 (sl)
EP (1) EP2881956B1 (sl)
JP (1) JP6217640B2 (sl)
KR (1) KR101809575B1 (sl)
CN (1) CN104508769B (sl)
HU (1) HUE033767T2 (sl)
SI (1) SI2881956T1 (sl)
WO (1) WO2014021149A1 (sl)

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EP2905790B1 (en) * 2012-09-28 2024-02-07 Proterial, Ltd. Ferrite sintered magnet and method for producing same
US10577253B2 (en) * 2016-01-19 2020-03-03 North Carolina State University Ferrite thick films and chemical solution-based methods of preparation thereof
KR102588231B1 (ko) * 2016-06-20 2023-10-13 유니온머티리얼 주식회사 페라이트 자성재료 및 페라이트 소결자석
US11810699B2 (en) * 2016-12-22 2023-11-07 Tdk Corporation Ferrite sintered magnet, ferrite particles, bonded magnet, motor, and generator
WO2018216594A1 (ja) * 2017-05-24 2018-11-29 日立金属株式会社 フェライト焼結磁石
JP6414372B1 (ja) * 2017-05-24 2018-10-31 日立金属株式会社 フェライト焼結磁石
CN108010652A (zh) * 2017-12-29 2018-05-08 烟台首钢磁性材料股份有限公司 一种钕铁硼磁体的烧结方法及其专用装置
CN110323025B (zh) * 2018-03-28 2021-12-10 Tdk株式会社 铁氧体烧结磁铁
JP7155573B2 (ja) * 2018-03-28 2022-10-19 Tdk株式会社 フェライト焼結磁石
JP7047530B2 (ja) * 2018-03-28 2022-04-05 Tdk株式会社 フェライト焼結磁石及びフェライト焼結磁石の製造方法
JP7000954B2 (ja) * 2018-03-28 2022-01-19 Tdk株式会社 フェライト焼結磁石
JP7338161B2 (ja) * 2019-02-05 2023-09-05 Tdk株式会社 フェライト焼結磁石
JP2020129579A (ja) * 2019-02-07 2020-08-27 Tdk株式会社 フェライト焼結磁石
JP7275740B2 (ja) 2019-03-27 2023-05-18 Tdk株式会社 フェライト焼結磁石及びこれを備える回転電気機械
JP7275739B2 (ja) 2019-03-27 2023-05-18 Tdk株式会社 フェライト焼結磁石及びこれを備える回転電気機械
JP7268440B2 (ja) 2019-03-27 2023-05-08 Tdk株式会社 フェライト焼結磁石及びこれを備える回転電気機械
JP7338395B2 (ja) 2019-10-18 2023-09-05 Tdk株式会社 フェライト焼結磁石及びこれを備える回転電気機械
JP7367581B2 (ja) 2020-03-23 2023-10-24 Tdk株式会社 フェライト焼結磁石
JP6927404B1 (ja) 2020-03-24 2021-08-25 日立金属株式会社 フェライト仮焼体、フェライト焼結磁石及びその製造方法
CN113205934A (zh) 2020-03-24 2021-08-03 日立金属株式会社 煅烧铁氧体和烧结铁氧体磁体及其制备方法
JP2021155317A (ja) 2020-03-30 2021-10-07 Tdk株式会社 フェライト焼結磁石および回転電気機械
JP7347296B2 (ja) 2020-03-30 2023-09-20 Tdk株式会社 フェライト焼結磁石および回転電気機械
WO2022038531A1 (en) * 2020-08-19 2022-02-24 Mahindra Cie Automotive Ltd. A permanent magnetic material and a method for its preparation
CN116102344B (zh) * 2023-02-10 2024-04-16 安徽万磁电子股份有限公司 一种高密度永磁铁氧体磁体及其生产工艺
CN116120049B (zh) * 2023-02-17 2024-01-19 矿冶科技集团有限公司 钙镧钴铁氧体磁体的制备方法、钙镧钴铁氧体磁体和应用

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JP3163279B2 (ja) 1997-02-25 2001-05-08 ティーディーケイ株式会社 焼結磁石およびモータ
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JP3181559B2 (ja) 1997-09-19 2001-07-03 ティーディーケイ株式会社 酸化物磁性材料、フェライト粒子、ボンディット磁石、焼結磁石、これらの製造方法および磁気記録媒体
JP2000277312A (ja) 1999-03-19 2000-10-06 Tdk Corp 焼結磁石およびその製造方法
JP2001223104A (ja) 2000-02-08 2001-08-17 Tdk Corp 焼結磁石の製造方法
JP3935325B2 (ja) 2000-07-28 2007-06-20 Ｔｄｋ株式会社 フェライト磁石の製造方法
JP2003297623A (ja) 2002-03-29 2003-10-17 Tdk Corp 六方晶フェライト焼結体の製造方法
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JP4919636B2 (ja) 2004-09-10 2012-04-18 日立金属株式会社 酸化物磁性材料および焼結磁石
BRPI0618960B1 (pt) 2005-11-25 2022-04-05 Hitachi Metals, Ltd Métodos para a produção de um magneto de ferrita sinterizado
JP4254897B2 (ja) 2005-12-28 2009-04-15 日立金属株式会社 酸化物磁性材料
JP2007258880A (ja) * 2006-03-22 2007-10-04 Tdk Corp 非可逆回路素子
HUE040207T2 (hu) 2009-06-30 2019-03-28 Hitachi Metals Ltd Eljárás szinterelt ferrit mágnes elõállítására és szinterelt ferrit mágnes
BR112013016925B1 (pt) * 2010-12-28 2021-10-26 Hitachi Metals, Ltd Imã sinterizado de ferrita e seu método de produção
JP2012209295A (ja) * 2011-03-29 2012-10-25 Hitachi Metals Ltd フェライト焼結磁石

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CN104508769B (zh) 2017-03-29
EP2881956B1 (en) 2017-07-05
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WO2014021149A1 (ja) 2014-02-06
CN104508769A (zh) 2015-04-08
JP6217640B2 (ja) 2017-10-25
US20150221424A1 (en) 2015-08-06
HUE033767T2 (en) 2018-01-29
KR20150038410A (ko) 2015-04-08
EP2881956A4 (en) 2016-03-16
JPWO2014021149A1 (ja) 2016-07-21
US9601247B2 (en) 2017-03-21

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