WO2011010561A1 - 圧粉磁心及びその製造方法 - Google Patents
圧粉磁心及びその製造方法 Download PDFInfo
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- WO2011010561A1 WO2011010561A1 PCT/JP2010/061615 JP2010061615W WO2011010561A1 WO 2011010561 A1 WO2011010561 A1 WO 2011010561A1 JP 2010061615 W JP2010061615 W JP 2010061615W WO 2011010561 A1 WO2011010561 A1 WO 2011010561A1
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- powder
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- 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
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- 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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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
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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
- B22F3/02—Compacting only
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
- H01F1/24—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 the particles being insulated
-
- 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
- H01F1/24—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 the particles being insulated
- H01F1/26—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 the particles being insulated by macromolecular organic substances
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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
- B22F3/02—Compacting only
- B22F2003/023—Lubricant mixed with the metal powder
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
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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
Abstract
Description
平均粒径が75μmの純鉄粉末の表面にリン酸塩化合物層を形成した絶縁被覆粉末を用意し、粉末潤滑剤として、平均粒径が約10μmのステアリン酸バリウム粉末を、絶縁被覆粉末に対して0.3質量%の割合で添加混合して原料粉末を調製した。この原料粉末を用いて、円環形状の成形金型中で700MPaの成形圧力を加えて圧縮成形し、外径30mm、内径20mm、高さ5mmのリング形状の圧粉体(試料1)を得た。
試料1と同様にして作製した圧粉体を熱処理炉内に据えて、650℃で30分間加熱した。
試料1で用いた絶縁被覆粉末を用意し、粒径が約20μmの熱硬化性ポリイミド樹脂粉末(KIRシリーズ、京セラケミカル社製)を絶縁被覆粉末に対して0.3質量%の割合で添加混合して原料粉末を調製し、内面に金型潤滑剤を塗布した円環形状の成形金型中で700MPaの成形圧力を加えて圧縮成形し、外径30mm、内径20mm、高さ5mmのリング形状の圧粉体を得た。
成形圧を980MPaに変更したこと以外は試料3と同じ操作を繰り返してリング形状の圧粉体を得た。
試料4と同様にして作製した圧粉体を熱処理炉内に据えて、650℃で30分間加熱した。
上記で得られた試料1~試料5の圧粉体の各々について、比抵抗を測定した。又、励起磁束密度0.4T、周波数2kHzにおける鉄損、ヒステリシス損及び渦電流損を測定した。これらの結果を表4に示す。
Claims (9)
- 軟磁性粉末と、前記軟磁性粉末に対して0.1質量%以上の絶縁性粉末潤滑剤とを含有する粉末混合物を用意し、
前記粉末混合物を800MPa以下の成形圧力で、軟磁性粉末の占積率が93%以上の圧粉体に成形することを有する圧粉磁心の製造方法。 - 前記軟磁性粉末は、鉄粉末又は鉄合金粉末を含み、前記絶縁性粉末潤滑剤は、金属石鹸粉末を含む請求項1記載の圧粉磁心の製造方法。
- 前記金属石鹸粉末は、ステアリン酸バリウム及びステアリン酸リチウムからなる群より選択される少なくとも1種を含む請求項1又は2に記載の圧粉磁心の製造方法。
- 前記軟磁性粉末は、表面が無機絶縁被膜で被覆される請求項1~3の何れかに記載の圧粉磁心の製造方法。
- 更に、前記圧粉体に150℃以下の加熱を伴う後処理を施すことを有し、前記絶縁性粉末潤滑剤は、融点が前記後処理の温度を超える金属石鹸粉末である請求項1~4の何れかに記載の圧粉磁心の製造方法。
- 前記絶縁性粉末潤滑剤は、平均粒径が45μm以下であり、軟磁性粉末に対して0.7質量%以下の割合で添加する請求項1~5の何れかに記載の圧粉磁心の製造方法。
- 軟磁性粉末と、前記軟磁性粉末に対して0.1~0.7質量%の絶縁性粉末潤滑剤とを含有する粉末混合物の圧粉体を有し、前記圧粉体における軟磁性粉末の占積率が93%以上で、比抵抗が10000μΩcm以上である圧粉磁心。
- 前記軟磁性粉末は、鉄粉末又は鉄合金粉末であって表面が無機絶縁被膜で被覆され、前記絶縁性粉末潤滑剤は、平均粒径が45μm以下で、ステアリン酸バリウム及びステアリン酸リチウムからなる群より選択される少なくとも1種の金属石鹸粉末である請求項7記載の圧粉磁心。
- リアクトル、イグニッションコイル、チョークコイル及びノイズフィルタからなる群より選択される回路と組み合わされる請求項7又は8に記載の圧粉磁心。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800333692A CN102473517A (zh) | 2009-07-23 | 2010-07-08 | 压粉磁芯及其制造方法 |
EP10802181.7A EP2458601B1 (en) | 2009-07-23 | 2010-07-08 | Soft magnetic powdered core and method for producing same |
KR1020127003746A KR101345671B1 (ko) | 2009-07-23 | 2010-07-08 | 압분 자심 및 그 제조방법 |
IN1597DEN2012 IN2012DN01597A (ja) | 2009-07-23 | 2010-07-08 | |
US13/384,995 US8398879B2 (en) | 2009-07-23 | 2010-07-08 | Soft magnetic powdered core and method for producing same |
Applications Claiming Priority (2)
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JP2009171879A JP5417074B2 (ja) | 2009-07-23 | 2009-07-23 | 圧粉磁心及びその製造方法 |
JP2009-171879 | 2009-07-23 |
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US (1) | US8398879B2 (ja) |
EP (1) | EP2458601B1 (ja) |
JP (1) | JP5417074B2 (ja) |
KR (1) | KR101345671B1 (ja) |
CN (1) | CN102473517A (ja) |
IN (1) | IN2012DN01597A (ja) |
WO (1) | WO2011010561A1 (ja) |
Cited By (1)
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WO2014054430A1 (ja) * | 2012-10-03 | 2014-04-10 | 株式会社神戸製鋼所 | 軟磁性混合粉末 |
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JP6322938B2 (ja) * | 2013-09-27 | 2018-05-16 | 日立化成株式会社 | 圧粉磁心、磁心用圧粉体の製造方法、圧粉磁心製造用押型及び金型装置、並びに、圧粉磁心製造用押型の潤滑液 |
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CN104028752B (zh) * | 2014-06-04 | 2016-08-17 | 捷和电机制品(深圳)有限公司 | 增强软磁粉末冶金材料强度的方法 |
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CN110434326B (zh) * | 2019-08-01 | 2021-09-17 | 浙江工业大学 | 一种金属软磁粉体表面原位包覆锂铝氧化物绝缘层的方法 |
WO2022158003A1 (ja) * | 2021-01-21 | 2022-07-28 | 昭和電工マテリアルズ株式会社 | 圧粉磁心用コンパウンド、成形体、及び圧粉磁心 |
JP7020602B1 (ja) * | 2021-01-21 | 2022-02-16 | 昭和電工マテリアルズ株式会社 | 圧粉磁心用コンパウンド、成形体、及び圧粉磁心 |
CN113620701B (zh) * | 2021-09-29 | 2023-04-18 | 海安南京大学高新技术研究院 | 一种超细晶耐高温高频锰锌铁氧体制备方法 |
KR20240010220A (ko) * | 2022-07-15 | 2024-01-23 | 주식회사 필리퍼 | 고온 성형에 의한 Fe-xSi(x=4-10.0wt%) 합금 압분자심 코어의 제조 방법 |
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- 2009-07-23 JP JP2009171879A patent/JP5417074B2/ja not_active Expired - Fee Related
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- 2010-07-08 KR KR1020127003746A patent/KR101345671B1/ko active IP Right Grant
- 2010-07-08 CN CN2010800333692A patent/CN102473517A/zh active Pending
- 2010-07-08 US US13/384,995 patent/US8398879B2/en active Active
- 2010-07-08 IN IN1597DEN2012 patent/IN2012DN01597A/en unknown
- 2010-07-08 EP EP10802181.7A patent/EP2458601B1/en not_active Not-in-force
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Publication number | Publication date |
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CN102473517A (zh) | 2012-05-23 |
KR20120032562A (ko) | 2012-04-05 |
EP2458601A4 (en) | 2014-01-01 |
KR101345671B1 (ko) | 2013-12-30 |
IN2012DN01597A (ja) | 2015-06-05 |
EP2458601A1 (en) | 2012-05-30 |
JP2011029302A (ja) | 2011-02-10 |
US8398879B2 (en) | 2013-03-19 |
EP2458601B1 (en) | 2017-12-06 |
JP5417074B2 (ja) | 2014-02-12 |
US20120119134A1 (en) | 2012-05-17 |
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