WO2009041606A1 - ボンド磁石用フェライト粉末およびその製造方法、並びに、これを用いたボンド磁石 - Google Patents

ボンド磁石用フェライト粉末およびその製造方法、並びに、これを用いたボンド磁石 Download PDF

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Publication number
WO2009041606A1
WO2009041606A1 PCT/JP2008/067472 JP2008067472W WO2009041606A1 WO 2009041606 A1 WO2009041606 A1 WO 2009041606A1 JP 2008067472 W JP2008067472 W JP 2008067472W WO 2009041606 A1 WO2009041606 A1 WO 2009041606A1
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WIPO (PCT)
Prior art keywords
bonded magnets
size distribution
particle size
powder
ferrite powder
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.)
Ceased
Application number
PCT/JP2008/067472
Other languages
English (en)
French (fr)
Inventor
Kazuyuki Nakaue
Shinichi Suenaga
Masahiro Kojima
Hiroya Ikeda
Satoru Tsuboi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dowa Electronics Materials Co Ltd
Dowa F Tec Co Ltd
Original Assignee
Dowa Electronics Materials Co Ltd
Dowa F Tec Co 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 Dowa Electronics Materials Co Ltd, Dowa F Tec Co Ltd filed Critical Dowa Electronics Materials Co Ltd
Priority to KR1020107009282A priority Critical patent/KR101515251B1/ko
Priority to US12/733,854 priority patent/US8337714B2/en
Priority to CN2008801086801A priority patent/CN101808943B/zh
Priority to EP08833553.4A priority patent/EP2204352B1/en
Publication of WO2009041606A1 publication Critical patent/WO2009041606A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C04B2235/60—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
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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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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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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
    • C04B2235/77—Density
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

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  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Magnetic Ceramics (AREA)

Abstract

　流動性や圧縮密度を得るため粒度分布幅を広くしながらも、それによるＳＦＤの増加を抑制し、配向性や着磁性の低下を抑制できるボンド磁石用フェライト粉末を提供する。平均粒子径が０.２０μｍ以上、５．００μｍ未満の範囲にあり、Ｚｒ、Ｔｉ、Ｚｎ、Ｃｏ、Ｍｎ及びＮｉからなる群より選ばれた少なくとも１種以上の遷移金属の酸化物を含有するマグネトプランバイト型フェライト粉であって、レーザー回折式粒度分布測定装置によって求めた当該マグネトプランバイト型フェライト粉の粒度分布において、粒子径１μｍ以下の粒子の割合が２０質量％以上あるボンド磁石用フェライト粉末を製造した。
PCT/JP2008/067472 2007-09-28 2008-09-26 ボンド磁石用フェライト粉末およびその製造方法、並びに、これを用いたボンド磁石 Ceased WO2009041606A1 (ja)

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KR1020107009282A KR101515251B1 (ko) 2007-09-28 2008-09-26 본드 자석용 페라이트 분말 및 이의 제조 방법, 및 이를 이용한 본드 자석
US12/733,854 US8337714B2 (en) 2007-09-28 2008-09-26 Ferrite powders for bonded magnet, process for the production of the powders, and bonded magnet made by using the same
CN2008801086801A CN101808943B (zh) 2007-09-28 2008-09-26 粘结磁体用铁氧体粉末及其制造方法、及使用其的粘结磁体
EP08833553.4A EP2204352B1 (en) 2007-09-28 2008-09-26 Ferrite powder for bonded magnets, process for the production of the powder, and bonded magnets made by using the same

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JP2008246834A JP5578777B2 (ja) 2007-09-28 2008-09-25 ボンド磁石用フェライト粉末およびその製造方法、並びに、これを用いたボンド磁石
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JP2014078757A (ja) * 2009-04-09 2014-05-01 Dowa Electronics Materials Co Ltd ボンド磁石用フェライト粉末およびこれを用いたボンド磁石
US20140225023A1 (en) * 2007-03-30 2014-08-14 Toda Kogyo Corporation Ferrite particles for bonded magnet, resin composition for bonded magnet and molded products using the same
US11823823B2 (en) 2013-10-02 2023-11-21 Toda Kogyo Corporation Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
US11820055B2 (en) 2013-04-03 2023-11-21 Toda Kogyo Corp. Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

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KR101209724B1 (ko) 2010-06-30 2012-12-07 기아자동차주식회사 차량용 압축기 제어 장치 및 제어 방법
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US10453596B2 (en) 2014-09-30 2019-10-22 Dowa Electronics Materials Co., Ltd. Ferrite powder for bonded magnets, method for producing the same and ferrite bonded magnet
CN106605276B (zh) * 2014-09-30 2019-05-03 同和电子科技有限公司 粘结磁体用铁氧体粉末及其制造方法以及铁氧体系粘结磁体
JP6705380B2 (ja) * 2014-10-01 2020-06-03 戸田工業株式会社 ボンド磁石用フェライト粒子粉末、ボンド磁石用樹脂組成物ならびにそれらを用いた成型体
JP6947490B2 (ja) * 2015-02-23 2021-10-13 Ｄｏｗａエレクトロニクス株式会社 ボンド磁石用フェライト粉末とその製造方法並びにフェライト系ボンド磁石
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KR102424753B1 (ko) * 2018-08-28 2022-07-22 후지필름 가부시키가이샤 마그네토플럼바이트형 육방정 페라이트의 분체와 그 제조 방법, 및 전파 흡수체
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KR20240147661A (ko) * 2022-02-10 2024-10-08 도다 고교 가부시끼가이샤 전자파 흡수용 페라이트 입자 분말, 그 제조 방법, 및 이를 사용한 수지 조성물
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US20140225023A1 (en) * 2007-03-30 2014-08-14 Toda Kogyo Corporation Ferrite particles for bonded magnet, resin composition for bonded magnet and molded products using the same
US9607741B2 (en) * 2007-03-30 2017-03-28 Toda Kogyo Corporation Ferrite particles for bonded magnet, resin composition for bonded magnet and molded products using the same
JP2009238795A (ja) * 2008-03-26 2009-10-15 Dowa Electronics Materials Co Ltd ボンド磁石用フェライト粉末およびその製造方法
JP2010263201A (ja) * 2009-04-09 2010-11-18 Dowa Electronics Materials Co Ltd ボンド磁石用フェライト粉末およびその製造方法並びにこれを用いたボンド磁石
US20120015189A1 (en) * 2009-04-09 2012-01-19 Dowa Electronics Materials Co., Ltd. Ferrite powder for bonded magnet, method for manufacturing ferrite powder, and bonded magnet using ferrite powder
EP2418660A4 (en) * 2009-04-09 2012-10-03 Dowa Electronics Materials Co Ltd FERRITE POWDER FOR BONDED MAGNET, MANUFACTURING METHOD THEREFOR, AND BONDED MAGNET USING THE SAME
JP2014078757A (ja) * 2009-04-09 2014-05-01 Dowa Electronics Materials Co Ltd ボンド磁石用フェライト粉末およびこれを用いたボンド磁石
US8951635B2 (en) 2009-04-09 2015-02-10 Dowa Electronics Materials Co., Ltd. Ferrite powder for bonded magnet, method for manufacturing ferrite powder, and bonded magnet using ferrite powder
US11820055B2 (en) 2013-04-03 2023-11-21 Toda Kogyo Corp. Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
US12246475B2 (en) 2013-04-03 2025-03-11 Toda Kogyo Corp. Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
US11823823B2 (en) 2013-10-02 2023-11-21 Toda Kogyo Corporation Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

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EP2204352A1 (en) 2010-07-07
CN101808943A (zh) 2010-08-18
US8337714B2 (en) 2012-12-25
KR101515251B1 (ko) 2015-04-24
JP2009099969A (ja) 2009-05-07
CN101808943B (zh) 2013-06-26
US20100295643A1 (en) 2010-11-25
JP5578777B2 (ja) 2014-08-27
KR20100063133A (ko) 2010-06-10
EP2204352A4 (en) 2013-05-15
EP2204352B1 (en) 2018-01-03

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