KR20080109005A - 본드 자석용 페라이트 자성분 및 그 제조 방법, 및 본드 자석 - Google Patents
본드 자석용 페라이트 자성분 및 그 제조 방법, 및 본드 자석 Download PDFInfo
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- KR20080109005A KR20080109005A KR1020087024017A KR20087024017A KR20080109005A KR 20080109005 A KR20080109005 A KR 20080109005A KR 1020087024017 A KR1020087024017 A KR 1020087024017A KR 20087024017 A KR20087024017 A KR 20087024017A KR 20080109005 A KR20080109005 A KR 20080109005A
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- ferrite magnetic
- magnetic powder
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- small component
- wet
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- 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
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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
- H01F41/0253—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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- 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
-
- 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
- C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
-
- 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
- H01F1/113—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 in a bonding agent
-
- 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
- C01P2006/10—Solid density
-
- 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
- C01P2006/11—Powder tap density
-
- 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
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
Claims (10)
- 철과 알칼리 토류 금속을 포함하며, 습식 세정 및/또는 습식 분쇄를 거친 본드 자석용의 페라이트 자성분에 있어서,100ppm 이상, 3000ppm이하의 Cr원소를 포함하며, 또한, 6가 크롬이 검출되지 않는 것을 특징으로 하는 페라이트 자성분.
- 철과 알칼리 토류 금속을 포함하며, 습식 세정 및/또는 습식 분쇄를 거친 본드 자석용의 페라이트 자성분에 있어서,100ppm 이상, 3000ppm 이하의 Cr원소를 포함하며, 또한, 6가 크롬의 함유량이 1ppm 이하인 것을 특징으로 하는 페라이트 자성분.
- 제1항 또는 제2항에 있어서,상기 페라이트 자성분 7g에 폴리에스테르 수지 0.4cc 첨가하고, φ15mm의 형태로 충전하여 8 MPa의 압력을 가하여 제작한 압분체의 자기 특성에 있어서,잔류 자속밀도 Br가 1730Gauss 이상, 고유 보자력 iHc가 2270Oe이상인 것을 특징으로 하는 페라이트 자성분.
- 철과 알칼리 토류 금속을 포함하는 원료분으로부터 본드 자석용의 페라이트 자성분을 제조하는 페라이트 자성분의 제조 방법에 있어서,상기 원료분을 소성하여 소성분을 얻는 공정과, 상기 소성분을 습식 세정하는 공정과, 상기 습식 세정된 소성분을 어닐하는 공정을 포함하며,상기 습식 세정하는 공정에 있어서, 세정에 사용하는 분산 용매의 pH를 8.5 이하로 하여 세정을 실시하는 것을 특징으로 하는 본드 자석용 페라이트 자성분의 제조 방법.
- 철과 알칼리 토류 금속을 포함하는 원료분으로부터 본드 자석용의 페라이트 자성분을 제조하는 페라이트 자성분 제조 방법에 있어서,상기 원료분를 소성하여 소성분을 얻는 공정과, 상기 소성분을 분쇄하는 공정과, 상기 분쇄된 소성분을 습식 세정하는 공정과, 상기 습식 세정된 소성분을 어닐하는 공정을 포함하며,상기 습식 세정 공정에 있어서, 세정에 사용하는 분산 용매의 pH를 8.5 이하로 하여 세정을 실시하는 것을 특징으로 하는 본드 자석용 페라이트 자성분의 제조 방법.
- 철과 알칼리 토류 금속을 포함하는 원료분으로부터 본드 자석용의 페라이트 자성분을 제조하는 페라이트 자성분 제조 방법에 있어서,상기 원료분을 소성하여 소성분을 얻는 공정과, 소성된 상기 소성분을 습식 분쇄하는 공정과, 상기 습식 분쇄된 소성분을 어닐하는 공정을 포함하며,상기 습식 분쇄 공정에 있어서, 습식 분쇄에 사용하는 분산 용매의 pH를 8. 5 이하로 하여 습식 분쇄를 실시하는 것을 특징으로 하는 본드 자석용 페라이트 자성분의 제조 방법.
- 제4항 내지 제6항 중 어느 한 항에 있어서,상기 소성분을 얻는 공정보다 후에, 상기 어닐하는 공정보다 전에, 상기 소성분에, 카본 및/또는 카본을 필수로 하며, H, O, N, C중 어느 1종 이상의 원소를 포함하는 비점 200℃이상의 화합물을 첨가하는 것을 특징으로 하는 본드자석용 페라이트 자성분의 제조방법.
- 제4항 내지 제6항 중 어느 한 항에 있어서,상기 소성분을 얻는 공정보다 후에, 상기 어닐하는 공정보다 전에, 상기 소성분에, 2가의 Fe 및/또는 2가의 Fe를 포함하는 화합물을 첨가하는 것을 특징으로 하는 본드자석용 페라이트 자성분의 제조방법.
- 제4항 내지 제6항 중 어느 한 항에 있어서,습식분쇄 및/또는 습식 세정된 상기 소성분을, H2가스, CO가스, NO가스, HC(하이드로카본)가스 중 어느 1종 이상을 포함하며, 80℃~300℃의 온도범위에 있는 가스 분위기 중에서 환원처리하는 것을 특징으로 하는 본드자석용 페라이트 자성분의 제조방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 본드 자석용 페라이트 자성분을 포함하는 것을 특징으로 하는 본드자석.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2006-00096749 | 2006-03-31 | ||
| JP2006096749 | 2006-03-31 | ||
| JP2007031074A JP4820312B2 (ja) | 2006-03-31 | 2007-02-09 | ボンド磁石用フェライト磁性粉およびその製造方法、並びにボンド磁石 |
| JPJP-P-2007-00031074 | 2007-02-09 | ||
| PCT/JP2007/054336 WO2007113973A1 (ja) | 2006-03-31 | 2007-03-06 | ボンド磁石用フェライト磁性粉およびその製造方法、並びにボンド磁石 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20080109005A true KR20080109005A (ko) | 2008-12-16 |
| KR101156806B1 KR101156806B1 (ko) | 2012-06-18 |
Family
ID=38563245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020087024017A Expired - Fee Related KR101156806B1 (ko) | 2006-03-31 | 2007-03-06 | 본드 자석용 페라이트 자성분 및 그 제조 방법, 및 본드 자석 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20100230630A1 (ko) |
| EP (1) | EP2003657B1 (ko) |
| JP (1) | JP4820312B2 (ko) |
| KR (1) | KR101156806B1 (ko) |
| CN (1) | CN101410912B (ko) |
| WO (1) | WO2007113973A1 (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229492B (zh) * | 2011-06-09 | 2013-01-30 | 南通万宝实业有限公司 | 使用压缩工艺的各向异性粘结铁氧体制备方法 |
| EP3202717B1 (en) * | 2014-10-01 | 2023-12-20 | Toda Kogyo Corp. | Ferrite particle powder for bonded magnets, resin composition for bonded magnets, and molded article using same |
| CN111018510A (zh) * | 2019-12-26 | 2020-04-17 | 南京大成材料科技有限公司 | 一种多极磁环的制造方法 |
| CN112564436A (zh) * | 2020-11-26 | 2021-03-26 | 浙江英洛华磁业有限公司 | 一种制造转子组件的方法 |
| CN112679206B (zh) * | 2020-12-30 | 2022-07-19 | 南京瑞洋新材料科技有限公司 | 一种高结构强度的永磁铁氧体磁瓦及其制备方法 |
| CN115321972B (zh) * | 2022-08-09 | 2023-10-24 | 矿冶科技集团有限公司 | 一种粘结型永磁铁氧体的除铬方法及应用 |
| CN116425206B (zh) * | 2023-04-06 | 2024-06-25 | 中国科学院宁波材料技术与工程研究所 | 一种提高SrFe12O19铁氧体磁性能的方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493874A (en) * | 1983-03-08 | 1985-01-15 | Tokyo Shibaura Denki Kabushiki Kaisha | Production of a magnetic powder having a high dispersibility |
| JP2967827B2 (ja) * | 1988-04-19 | 1999-10-25 | 日立金属株式会社 | 複合磁石用ハードフェライト粉末およびそれを用いたコンパウンドならびに複合磁石 |
| US5378384A (en) * | 1991-09-19 | 1995-01-03 | Minnesota Mining And Manufacturing Company | Process of making hexagonal magnetic ferrite pigment for high density magnetic recording applications |
| JPH0766027A (ja) * | 1993-08-24 | 1995-03-10 | Kawasaki Steel Corp | ストロンチウムフェライト磁石の製造方法 |
| JP3477831B2 (ja) * | 1994-07-19 | 2003-12-10 | 戸田工業株式会社 | 磁気カード用バリウムフェライト粒子粉末の製造法 |
| JP3257936B2 (ja) | 1995-10-11 | 2002-02-18 | 日本弁柄工業株式会社 | ボンド磁石用フエライト粉末およびこれを用いたボンド磁石 |
| JPH09260124A (ja) * | 1996-03-26 | 1997-10-03 | Sumitomo Special Metals Co Ltd | フェライト磁石及びその製造方法 |
| RU2111571C1 (ru) * | 1997-02-18 | 1998-05-20 | Открытое акционерное общество Московский институт материаловедения и эффективных технологий | Композиция для изготовления анизотропных магнитов и способ их получения |
| DE69942213D1 (de) * | 1998-01-23 | 2010-05-12 | Hitachi Metals Ltd | Verbundmagnet, Herstellungsverfahren dafür und Magnetrolle |
| JPH11251127A (ja) * | 1998-03-04 | 1999-09-17 | Hitachi Metals Ltd | 高性能フェライト磁石およびその製造方法 |
| JP2001035715A (ja) * | 1999-04-30 | 2001-02-09 | Toda Kogyo Corp | 磁気カード用板状複合マグネトプランバイト型フェライト粒子粉末及び該板状複合マグネトプランバイト型フェライト粒子粉末を用いた磁気カード |
| JP4314347B2 (ja) * | 1999-12-02 | 2009-08-12 | Dowaエレクトロニクス株式会社 | フエライト磁性粉の製法 |
| JP2001223104A (ja) * | 2000-02-08 | 2001-08-17 | Tdk Corp | 焼結磁石の製造方法 |
| JP2002313618A (ja) * | 2001-02-07 | 2002-10-25 | Sumitomo Special Metals Co Ltd | 永久磁石、およびその製造方法 |
| JP4538991B2 (ja) * | 2001-02-07 | 2010-09-08 | 日立金属株式会社 | 永久磁石およびその製造方法 |
| JP2003086412A (ja) | 2001-09-14 | 2003-03-20 | Daido Electronics Co Ltd | ボンド磁石およびその製造方法 |
| US7906036B2 (en) * | 2003-09-12 | 2011-03-15 | Neomax Co., Ltd. | Ferrite sintered magnet |
| JP4215261B2 (ja) * | 2004-10-29 | 2009-01-28 | Tdk株式会社 | フェライト磁性材料及びその製造方法 |
| JP4595954B2 (ja) * | 2007-03-15 | 2010-12-08 | セイコーエプソン株式会社 | 焼結体の製造方法 |
-
2007
- 2007-02-09 JP JP2007031074A patent/JP4820312B2/ja active Active
- 2007-03-06 KR KR1020087024017A patent/KR101156806B1/ko not_active Expired - Fee Related
- 2007-03-06 EP EP07737883.4A patent/EP2003657B1/en not_active Not-in-force
- 2007-03-06 US US12/225,235 patent/US20100230630A1/en not_active Abandoned
- 2007-03-06 CN CN2007800112630A patent/CN101410912B/zh not_active Expired - Fee Related
- 2007-03-06 WO PCT/JP2007/054336 patent/WO2007113973A1/ja not_active Ceased
-
2014
- 2014-04-17 US US14/255,621 patent/US9460850B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20140225316A1 (en) | 2014-08-14 |
| EP2003657B1 (en) | 2015-04-01 |
| EP2003657A4 (en) | 2010-07-28 |
| KR101156806B1 (ko) | 2012-06-18 |
| JP4820312B2 (ja) | 2011-11-24 |
| CN101410912B (zh) | 2013-06-26 |
| EP2003657A2 (en) | 2008-12-17 |
| EP2003657A9 (en) | 2009-04-22 |
| CN101410912A (zh) | 2009-04-15 |
| US20100230630A1 (en) | 2010-09-16 |
| WO2007113973A1 (ja) | 2007-10-11 |
| US9460850B2 (en) | 2016-10-04 |
| JP2007294871A (ja) | 2007-11-08 |
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