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WO2008120784A1 - 磁石の製造方法 - Google Patents

磁石の製造方法 Download PDF

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Publication number
WO2008120784A1
WO2008120784A1 PCT/JP2008/056381 JP2008056381W WO2008120784A1 WO 2008120784 A1 WO2008120784 A1 WO 2008120784A1 JP 2008056381 W JP2008056381 W JP 2008056381W WO 2008120784 A1 WO2008120784 A1 WO 2008120784A1
Authority
WO
WIPO (PCT)
Prior art keywords
heavy rare
magnet
earth
rare
sinter
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/JP2008/056381
Other languages
English (en)
French (fr)
Inventor
Ryota Kunieda
Makoto Nakane
Fumitaka Baba
Makoto Iwasaki
Satoshi Tanaka
Hideki Nakamura
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to US12/593,324 priority Critical patent/US20100129538A1/en
Priority to JP2008544693A priority patent/JP4692634B2/ja
Priority to CN200880000267.3A priority patent/CN101542654B/zh
Priority to EP08739494.6A priority patent/EP2133891B1/en
Publication of WO2008120784A1 publication Critical patent/WO2008120784A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • 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
    • H01F41/0293—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 diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • 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
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

　本発明は、十分なＢｒ及びＨｃＪが得られるのみならず、角形比が十分に大きい磁石を得ることができる磁石の製造方法を提供することを目的とする。本発明の磁石の製造方法は、希土類磁石の焼結体に、重希土類元素を含む重希土類化合物を付着させる第１工程と、重希土類化合物が付着した焼結体を熱処理する第２工程とを有し、重希土類化合物は、重希土類元素の水素化物であることを特徴とする。
PCT/JP2008/056381 2007-03-30 2008-03-31 磁石の製造方法 Ceased WO2008120784A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/593,324 US20100129538A1 (en) 2007-03-30 2008-03-31 Process for producing magnet
JP2008544693A JP4692634B2 (ja) 2007-03-30 2008-03-31 磁石の製造方法
CN200880000267.3A CN101542654B (zh) 2007-03-30 2008-03-31 磁铁的制造方法
EP08739494.6A EP2133891B1 (en) 2007-03-30 2008-03-31 Process for producing magnet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007093457 2007-03-30
JP2007-093457 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008120784A1 true WO2008120784A1 (ja) 2008-10-09

Family

ID=39808364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056381 Ceased WO2008120784A1 (ja) 2007-03-30 2008-03-31 磁石の製造方法

Country Status (5)

Country Link
US (1) US20100129538A1 (ja)
EP (1) EP2133891B1 (ja)
JP (1) JP4692634B2 (ja)
CN (1) CN101542654B (ja)
WO (1) WO2008120784A1 (ja)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024936A1 (ja) * 2009-08-28 2011-03-03 インターメタリックス株式会社 NdFeB系焼結磁石の製造方法、製造装置、及び該製造方法によって製造されるNdFeB系焼結磁石
WO2011122577A1 (ja) * 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石及びその製造方法、並びにモータ及び自動車
WO2011122667A1 (ja) * 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
JP2011211056A (ja) * 2010-03-30 2011-10-20 Tdk Corp 希土類焼結磁石、モーター及び自動車
JP2011211068A (ja) * 2010-03-30 2011-10-20 Tdk Corp 焼結磁石、モーター及び自動車
CN101521069B (zh) * 2008-11-28 2011-11-16 北京工业大学 重稀土氢化物纳米颗粒掺杂烧结钕铁硼永磁的制备方法
WO2012029748A1 (ja) * 2010-08-31 2012-03-08 並木精密宝石株式会社 R-Fe-B系希土類焼結磁石とその製造方法、製造装置、モータ又は発電機
CN105551789A (zh) * 2016-02-04 2016-05-04 宁波韵升股份有限公司 一种稀土永磁体的制造方法
US9548157B2 (en) 2010-03-30 2017-01-17 Tdk Corporation Sintered magnet, motor, automobile, and method for producing sintered magnet
US10256018B2 (en) 2014-02-14 2019-04-09 Santoku Corporation Cast rare earth-containing alloy sheet, manufacturing method therefor, and sintered magnet
KR20220066039A (ko) 2019-09-20 2022-05-23 신에쓰 가가꾸 고교 가부시끼가이샤 희토류 자석의 제조 방법

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5328161B2 (ja) * 2008-01-11 2013-10-30 インターメタリックス株式会社 ＮｄＦｅＢ焼結磁石の製造方法及びＮｄＦｅＢ焼結磁石
CN102483979B (zh) 2009-07-10 2016-06-08 因太金属株式会社 NdFeB烧结磁铁的制造方法
CN102483980B (zh) * 2010-03-04 2016-09-07 Tdk株式会社 稀土烧结磁体和电动机
US20120181476A1 (en) * 2010-03-31 2012-07-19 Nitto Denko Corporation Permanent magnet and manufacturing method thereof
KR101201021B1 (ko) * 2010-03-31 2012-11-14 닛토덴코 가부시키가이샤 영구 자석 및 영구 자석의 제조 방법
JP5908246B2 (ja) * 2011-09-30 2016-04-26 日東電工株式会社 希土類永久磁石の製造方法
CN102543418B (zh) * 2012-01-12 2013-08-07 北京工业大学 氢化钐纳米粉改性制备高磁能积钐－钴基永磁体的方法
CN103093921B (zh) * 2013-01-29 2016-08-24 烟台首钢磁性材料股份有限公司 一种r-t-b-m-c系烧结磁铁及其制造方法及专用装置
CN104715877B (zh) * 2013-12-16 2019-08-27 北京中科三环高技术股份有限公司 一种稀土永磁体及其制造方法
KR101534717B1 (ko) * 2013-12-31 2015-07-24 현대자동차 주식회사 희토류계 자석 제조 방법
CN104036944A (zh) * 2014-06-11 2014-09-10 北京工业大学 一种利用块状烧结钕铁硼加工废料制备高温稳定性再生烧结钕铁硼磁体的方法
CN104036943A (zh) * 2014-06-11 2014-09-10 北京工业大学 一种利用块状烧结钕铁硼加工废料制备高矫顽力再生烧结钕铁硼磁体的方法
CN104134528B (zh) * 2014-07-04 2017-03-01 宁波韵升股份有限公司 一种提高烧结钕铁硼薄片磁体磁性能的方法
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
CN104299744B (zh) * 2014-09-30 2017-04-12 许用华 一种烧结NdFeB磁体的重稀土元素附着方法
CN104576026B (zh) * 2014-12-29 2017-02-22 宁波金坦磁业有限公司 高矫顽力钕铁硼磁体的制备方法
CN105632748B (zh) * 2015-12-25 2019-01-11 宁波韵升股份有限公司 一种提高烧结钕铁硼薄片磁体磁性能的方法
CN105489367B (zh) * 2015-12-25 2017-08-15 宁波韵升股份有限公司 一种提高烧结钕铁硼磁体磁性能的方法
CN106191856B (zh) * 2016-08-30 2018-11-23 安徽大地熊新材料股份有限公司 一种高耐蚀、高矫顽力烧结钕铁硼磁体及制备方法
CN111710519B (zh) * 2017-11-29 2022-09-20 宁德市星宇科技有限公司 一种晶界扩散制备钕铁硼磁体的方法
JP6950595B2 (ja) * 2018-03-12 2021-10-13 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
KR102045400B1 (ko) * 2018-04-30 2019-11-15 성림첨단산업(주) 희토류 영구자석의 제조방법
CN114300210B (zh) * 2021-12-30 2022-08-26 湖南稀土新能源材料有限责任公司 稀土氢化金属粉末、钕铁硼磁体及其制备方法

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JP2005011973A (ja) * 2003-06-18 2005-01-13 Japan Science & Technology Agency 希土類−鉄−ホウ素系磁石及びその製造方法
JP2005175138A (ja) * 2003-12-10 2005-06-30 Japan Science & Technology Agency 耐熱性希土類磁石及びその製造方法
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JP3452254B2 (ja) * 2000-09-20 2003-09-29 愛知製鋼株式会社 異方性磁石粉末の製造方法、異方性磁石粉末の原料粉末およびボンド磁石
TWI413136B (zh) * 2005-03-23 2013-10-21 Shinetsu Chemical Co 稀土族永久磁體
US7559996B2 (en) * 2005-07-22 2009-07-14 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine

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See also references of EP2133891A4

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101521069B (zh) * 2008-11-28 2011-11-16 北京工业大学 重稀土氢化物纳米颗粒掺杂烧结钕铁硼永磁的制备方法
WO2011024936A1 (ja) * 2009-08-28 2011-03-03 インターメタリックス株式会社 NdFeB系焼結磁石の製造方法、製造装置、及び該製造方法によって製造されるNdFeB系焼結磁石
JPWO2011024936A1 (ja) * 2009-08-28 2013-01-31 インターメタリックス株式会社 ＮｄＦｅＢ系焼結磁石の製造方法、製造装置、及び該製造方法によって製造されるＮｄＦｅＢ系焼結磁石
CN102498531A (zh) * 2009-08-28 2012-06-13 因太金属株式会社 NdFeB系烧结磁铁的制造方法、制造装置、及该制造方法所制造的NdFeB系烧结磁铁
JP2011211068A (ja) * 2010-03-30 2011-10-20 Tdk Corp 焼結磁石、モーター及び自動車
JP2011211056A (ja) * 2010-03-30 2011-10-20 Tdk Corp 希土類焼結磁石、モーター及び自動車
WO2011122667A1 (ja) * 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
WO2011122577A1 (ja) * 2010-03-30 2011-10-06 Tdk株式会社 希土類焼結磁石及びその製造方法、並びにモータ及び自動車
JPWO2011122667A1 (ja) * 2010-03-30 2013-07-08 Tdk株式会社 希土類焼結磁石、その製造方法、モーター、及び自動車
JP5408340B2 (ja) * 2010-03-30 2014-02-05 Ｔｄｋ株式会社 希土類焼結磁石及びその製造方法、並びにモータ及び自動車
US8823478B2 (en) 2010-03-30 2014-09-02 Tdk Corporation Rare earth sintered magnet, method for producing same, motor and automobile
US9350203B2 (en) 2010-03-30 2016-05-24 Tdk Corporation Rare earth sintered magnet, method for producing the same, motor, and automobile
US9548157B2 (en) 2010-03-30 2017-01-17 Tdk Corporation Sintered magnet, motor, automobile, and method for producing sintered magnet
WO2012029748A1 (ja) * 2010-08-31 2012-03-08 並木精密宝石株式会社 R-Fe-B系希土類焼結磁石とその製造方法、製造装置、モータ又は発電機
US10256018B2 (en) 2014-02-14 2019-04-09 Santoku Corporation Cast rare earth-containing alloy sheet, manufacturing method therefor, and sintered magnet
CN105551789A (zh) * 2016-02-04 2016-05-04 宁波韵升股份有限公司 一种稀土永磁体的制造方法
KR20220066039A (ko) 2019-09-20 2022-05-23 신에쓰 가가꾸 고교 가부시끼가이샤 희토류 자석의 제조 방법

Also Published As

Publication number Publication date
EP2133891A1 (en) 2009-12-16
EP2133891A4 (en) 2011-01-26
JP4692634B2 (ja) 2011-06-01
CN101542654B (zh) 2015-01-14
US20100129538A1 (en) 2010-05-27
EP2133891B1 (en) 2017-03-08
JPWO2008120784A1 (ja) 2010-07-15
CN101542654A (zh) 2009-09-23

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