JP2006508241A - 異方性磁石粉末の製造方法及びこの粉末より成る異方性ボンド磁石 - Google Patents
異方性磁石粉末の製造方法及びこの粉末より成る異方性ボンド磁石 Download PDFInfo
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- JP2006508241A JP2006508241A JP2004554511A JP2004554511A JP2006508241A JP 2006508241 A JP2006508241 A JP 2006508241A JP 2004554511 A JP2004554511 A JP 2004554511A JP 2004554511 A JP2004554511 A JP 2004554511A JP 2006508241 A JP2006508241 A JP 2006508241A
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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
- H01F1/032—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
- H01F1/0578—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 bonded together
-
- 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
- H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (21)
- SE−TM−B合金(SEはイットリウムを含めた希土類元素を、またTMは遷移金属を表す)をベースとする出発材料を準備し、
水素化物を生成するため、水素圧力下に加熱する第1の水素化工程(S4)と、水素圧力下及び高温下に経過する相転移を惹起させる第2の水素化工程(S5)とにより、TMxB相、特にFe2B相を含む混合物を生成し、
反転相転移(HDDR−hydrogenation−decomposition−desorption−recombination、水素化−分解−脱離−再結合法)(S6)により脱水素化工程を行う
異方性磁石粉末の製造方法において、
出発材料として、異方性方位を有する磁石材料を使用することを特徴とする異方性磁石粉末の製造方法。 - SE−TM−B合金(SEはイットリウムを含めた希土類元素を、またTMは遷移金属を表す)をベースとする出発材料を準備し、
水素圧力下に加熱して水素化物を生成する第1の水素化工程(S4)と、水素圧力下及び高温下に経過する、相転移を惹起させる第2の水素化工程(S5)とにより、TMxB相、特にFe2B相を含む混合物を生成し、
反転相転移(HDDR法)(S6)により脱水素化工程を行う
異方性磁石粉末の製造方法において、
前記出発材料が磁石材料として少なくとも一部が磁石スクラップより成ることを特徴とする異方性磁石粉末の製造方法。 - 磁石材料として、硬磁性相のSE2TM14B(SEはYを含む希土類元素を、またTMは遷移金属を表す)を含む永久磁石材料を使用する請求項1又は2記載の方法。
- 遷移金属として、Fe、Ni又はCoの元素の少なくとも1つを備えた請求項1、2又は3に記載の方法。
- C、O、N及び/又はS分を一部含んでいる添加物を含有する、請求項1から5の1つに記載の方法。
- 出発材料として、平均粒度1mm以下の磁石材料と、90容量%以上の硬磁性分及び/又は0.5mm以下の(異質相)の磁石材料を使用する請求項1から5の1つに記載の方法。
- 出発材料として、平均粒度0.1mm以下の磁石材料を使用する請求項1から6の1つに記載の方法。
- この出発材料を水素化処理/脱水素化処理前に、粉砕、篩分け又は分別する(S3)請求項1から7の1つに記載の方法。
- 出発材料として、最高でも粒子の大きさの75%の結晶サイズの磁石粉末を使用する(S3)請求項1から8の1つに記載の方法。
- 出発材料の特に異質相分を分離し、精錬する(S3)、請求項1から9の1つに記載の方法。
- 上記出発材料を水素化/脱水素化処理する前に、真空、希ガス又は水素中で強熱により精錬する(S3)、請求項1から10の1つに記載の方法。
- 水素化/脱水素化処理の後、希ガス又は真空雰囲気下に、特に600℃までの温度で熱処理を行う請求項1から11の1つに記載の方法。
- 生成した磁石粉末を混合により均質化する(S8)請求項1から12の1つに記載の方法。
- 生成した磁石粉末の0.5mm以上の粗粒度分を篩分けにより除去する請求項1から13の1つに記載の方法。
- 32μm未満の微粒子分を最高で10%含む磁石粉末を用意する請求項1から14の1つに記載の方法。
- 上記磁石粉末を被覆する(S9)請求項1から15の1つに記載の方法。
- ホウ素Bを一部炭素Cと置換える請求項1から16の1つに記載の方法。
- 請求項1から17の1つに記載の方法の使用下に、生成した磁石粉末から製造したプラスチック又は金属と結合したボンド磁石。
- BHmaxが80kJ/m3以上のエネルギー積を有する請求項18記載の磁石。
- 70%以上の方位度を有する請求項18又は19に記載の磁石。
- その磁性分の充填度が少なくとも63容量%である請求項18、19又は20記載の磁石。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10255604A DE10255604B4 (de) | 2002-11-28 | 2002-11-28 | Verfahren zum Herstellen eines anisotropen Magnetpulvers und eines gebundenen anisotropen Magneten daraus |
PCT/EP2003/013383 WO2004049359A1 (de) | 2002-11-28 | 2003-11-27 | Verfahren zum herstellen eines anisotropen magnetpulvers und eines gebundenen anisotropen magneten daraus |
Publications (1)
Publication Number | Publication Date |
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JP2006508241A true JP2006508241A (ja) | 2006-03-09 |
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Family Applications (1)
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JP2004554511A Pending JP2006508241A (ja) | 2002-11-28 | 2003-11-27 | 異方性磁石粉末の製造方法及びこの粉末より成る異方性ボンド磁石 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7972448B2 (ja) |
JP (1) | JP2006508241A (ja) |
DE (1) | DE10255604B4 (ja) |
WO (1) | WO2004049359A1 (ja) |
Cited By (3)
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---|---|---|---|---|
WO2013002376A1 (ja) * | 2011-06-30 | 2013-01-03 | 日立金属株式会社 | 炭素が除去されたR-Fe-B系永久磁石合金再生材料を製造する方法 |
JP2014504203A (ja) * | 2010-12-02 | 2014-02-20 | ザ ユニバーシティ オブ バーミンガム | 磁石の再利用 |
US9663843B2 (en) | 2010-12-02 | 2017-05-30 | The University Of Birmingham | Magnet recycling |
Families Citing this family (11)
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CN102107274B (zh) * | 2009-12-25 | 2014-10-22 | 北京中科三环高技术股份有限公司 | 一种连续熔炼甩带氢化的装置与方法 |
BR112013030793A2 (pt) * | 2011-07-01 | 2016-12-06 | Inst De Pesquisas Tecnológicas Do Estado De São Paulo | processo de recuperação de liga lantanídeo-metal-metalóide em pó nanoparticulado com recuperação magnética e produto |
DE102011108173A1 (de) * | 2011-07-20 | 2013-01-24 | Aichi Steel Corporation | Magnetisches Material und Verfahren zu dessen Herstellung |
BR112015031725A2 (pt) | 2013-06-17 | 2017-07-25 | Urban Mining Tech Company Llc | método para fabricação de um imã permanente de nd-fe-b reciclado |
CN103537705B (zh) * | 2013-10-29 | 2015-06-24 | 宁波韵升股份有限公司 | 一种烧结钕铁硼永磁材料氢碎工艺 |
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 |
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 |
DE102014213723A1 (de) * | 2014-07-15 | 2016-01-21 | Siemens Aktiengesellschaft | Verfahren zur Herstellung eines anisotropen weichmagnetischen Materialkörpers und dessen Verwendung |
US9336932B1 (en) | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
TWI685391B (zh) | 2016-03-03 | 2020-02-21 | 美商史達克公司 | 三維部件及其製造方法 |
DE102016216353A1 (de) | 2016-08-30 | 2018-03-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Recyclingverfahren zur Herstellung isotroper, magnetischer Pulver |
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-
2003
- 2003-11-27 US US10/524,752 patent/US7972448B2/en not_active Expired - Fee Related
- 2003-11-27 JP JP2004554511A patent/JP2006508241A/ja active Pending
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---|---|---|---|---|
JP2014504203A (ja) * | 2010-12-02 | 2014-02-20 | ザ ユニバーシティ オブ バーミンガム | 磁石の再利用 |
US9663843B2 (en) | 2010-12-02 | 2017-05-30 | The University Of Birmingham | Magnet recycling |
WO2013002376A1 (ja) * | 2011-06-30 | 2013-01-03 | 日立金属株式会社 | 炭素が除去されたR-Fe-B系永久磁石合金再生材料を製造する方法 |
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Also Published As
Publication number | Publication date |
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US7972448B2 (en) | 2011-07-05 |
WO2004049359A1 (de) | 2004-06-10 |
US20060162821A1 (en) | 2006-07-27 |
DE10255604B4 (de) | 2006-06-14 |
DE10255604A1 (de) | 2004-06-17 |
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