JP6483278B2 - 磁性材料を含む成形体の製造方法 - Google Patents
磁性材料を含む成形体の製造方法 Download PDFInfo
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- JP6483278B2 JP6483278B2 JP2017551807A JP2017551807A JP6483278B2 JP 6483278 B2 JP6483278 B2 JP 6483278B2 JP 2017551807 A JP2017551807 A JP 2017551807A JP 2017551807 A JP2017551807 A JP 2017551807A JP 6483278 B2 JP6483278 B2 JP 6483278B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—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 metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—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 metals or alloys
- H01F1/20—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 metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Powder Metallurgy (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
FeRestCoaCubNbcSidBeCf
式中、a、b、c、d、eおよびfは原子百分率で表され、0≦a≦1;0.7≦b≦1.4;2.5≦c≦3.5;14.5≦d≦16.5;5.5≦e≦8および0≦f≦1であり、コバルトを全体的または部分的にニッケルに置き換えることができ、前記ストリップには、金属酸化物溶液および/または金属を有するアセチル−アセトン−キレート錯体によるコーティングが備えられ、前記コーティングにより、後に続く前記ストリップのナノ結晶化のための熱処理中に、封止金属酸化物コーティングが形成され、前記ストリップの前記ナノ結晶化のための熱処理において、飽和磁歪λsが|λs|<2ppmに設定される、方法である。
Fe基合金組成物を溶製し、ガスアトマイズ法によりメジアン径D50が45μmの磁性粉末を得た。磁性粉末は、粒子径75μm以上の粒子を分級して取り除く処理を加えておくと、後の熱処理によって理想に近いナノ結晶組織が生成されるため、より好ましい。
実施例1と同様にして、トロイダルコアの形状を有する原料部材を製造した。
100…インダクタンス素子
10…コイル体
20,25…端子板
30…原料部材
40,45…塗布型電極
31…成形部材
HP1…中空部
32…成形部材
HP2…中空部
Claims (5)
- ヘテロアモルファス組織を有する磁性材料を含む原料部材を成形し、前記成形した原料部材を熱処理して前記へテロアモルファス組織をナノ結晶組織に変化させた成形体の製造方法であって、
前記原料部材が含む前記磁性材料は粉末状であり、前記原料部材は、前記粉末状の磁性材料を含む原材料の加圧成形体であり、
前記熱処理において、前記成形した原料部材を前記原料部材との反応性が低く熱伝導率が20W・m/K以上の放熱性セラミックス粉末内に埋設し、
埋設している前記成形体を前記放熱性セラミックス粉末から取り出すことにより、前記放熱性セラミックス粉末から前記成形体を分離することを特徴とする成形体の製造方法。 - 前記磁性材料は粉体であり、
前記放熱性セラミックス粉末は、前記磁性材料よりも粒径が大きいことを特徴とする請求項1に記載の成形体の製造方法。 - 前記磁性材料は、体積基準の粒度分布において小粒径側からの積算粒径分布が50%となる粒径D50が、50μm未満であり、前記放熱性セラミックス粉末は、前記粒径D50が、50μm以上500μm以下である、請求項2に記載の成形体の製造方法。
- 前記放熱性セラミックス粉末は、アルミナ粉末、炭化ケイ素粉末、窒化ケイ素粉末、および窒化アルミニウム粉末からなる群から選ばれる1種または2種以上を含む、請求項1から3のいずれか一項に記載の成形体の製造方法。
- 前記熱処理は、100℃/分以上の昇温プロセスを備える、請求項1から4のいずれか一項に記載の成形体の製造方法。
Applications Claiming Priority (3)
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JP2015224350 | 2015-11-17 | ||
JP2015224350 | 2015-11-17 | ||
PCT/JP2016/082423 WO2017086145A1 (ja) | 2015-11-17 | 2016-11-01 | 磁性材料を含む成形体の製造方法およびかかる製造方法により製造される成形体 |
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JPWO2017086145A1 JPWO2017086145A1 (ja) | 2018-07-12 |
JP6483278B2 true JP6483278B2 (ja) | 2019-03-13 |
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JP2017551807A Active JP6483278B2 (ja) | 2015-11-17 | 2016-11-01 | 磁性材料を含む成形体の製造方法 |
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WO (1) | WO2017086145A1 (ja) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH046201A (ja) * | 1990-04-25 | 1992-01-10 | Fujitsu Ltd | 磁性材料からなる射出成形体の脱脂方法 |
DE10134056B8 (de) * | 2001-07-13 | 2014-05-28 | Vacuumschmelze Gmbh & Co. Kg | Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens |
US8287665B2 (en) * | 2007-03-20 | 2012-10-16 | Nec Tokin Corporation | Soft magnetic alloy, magnetic part using soft magnetic alloy, and method of manufacturing same |
JP5537534B2 (ja) * | 2010-12-10 | 2014-07-02 | Necトーキン株式会社 | Fe基ナノ結晶合金粉末及びその製造方法、並びに、圧粉磁心及びその製造方法 |
JP5932861B2 (ja) * | 2014-02-25 | 2016-06-08 | 国立大学法人東北大学 | 合金組成物、Fe基ナノ結晶合金薄帯、Fe基ナノ結晶合金粉末及び磁性部品 |
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JPWO2017086145A1 (ja) | 2018-07-12 |
WO2017086145A1 (ja) | 2017-05-26 |
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