WO2008139559A1 - R-t-b系焼結磁石 - Google Patents
R-t-b系焼結磁石 Download PDFInfo
- Publication number
- WO2008139559A1 WO2008139559A1 PCT/JP2007/059384 JP2007059384W WO2008139559A1 WO 2008139559 A1 WO2008139559 A1 WO 2008139559A1 JP 2007059384 W JP2007059384 W JP 2007059384W WO 2008139559 A1 WO2008139559 A1 WO 2008139559A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- atom
- sintered magnet
- rare earth
- transition metal
- earth element
- Prior art date
Links
Classifications
-
- 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
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097023842A KR101378090B1 (ko) | 2007-05-02 | 2007-05-02 | R-t-b계 소결 자석 |
PCT/JP2007/059384 WO2008139559A1 (ja) | 2007-05-02 | 2007-05-02 | R-t-b系焼結磁石 |
JP2007541537A JP4103937B1 (ja) | 2007-05-02 | 2007-05-02 | R−t−b系焼結磁石 |
CN2007800528152A CN101689416B (zh) | 2007-05-02 | 2007-05-02 | R-t-b系烧结磁体 |
EP07742819A EP2034493B1 (en) | 2007-05-02 | 2007-05-02 | R-t-b sintered magnet |
US12/132,738 US20080274009A1 (en) | 2007-05-02 | 2008-06-04 | R-t-b based sintered magnet |
US12/562,336 US7789933B2 (en) | 2007-05-02 | 2009-09-18 | R-T-B based sintered magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/059384 WO2008139559A1 (ja) | 2007-05-02 | 2007-05-02 | R-t-b系焼結磁石 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/132,738 Continuation US20080274009A1 (en) | 2007-05-02 | 2008-06-04 | R-t-b based sintered magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008139559A1 true WO2008139559A1 (ja) | 2008-11-20 |
Family
ID=39608107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/059384 WO2008139559A1 (ja) | 2007-05-02 | 2007-05-02 | R-t-b系焼結磁石 |
Country Status (6)
Country | Link |
---|---|
US (2) | US20080274009A1 (ja) |
EP (1) | EP2034493B1 (ja) |
JP (1) | JP4103937B1 (ja) |
KR (1) | KR101378090B1 (ja) |
CN (1) | CN101689416B (ja) |
WO (1) | WO2008139559A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102361998A (zh) * | 2009-03-31 | 2012-02-22 | 日立金属株式会社 | R-t-b-m系烧结磁体用合金及其制造方法 |
JP2014502034A (ja) * | 2010-10-25 | 2014-01-23 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
JP5692231B2 (ja) * | 2010-07-16 | 2015-04-01 | トヨタ自動車株式会社 | 希土類磁石の製造方法、及び希土類磁石 |
JP2016169438A (ja) * | 2015-03-13 | 2016-09-23 | 昭和電工株式会社 | R−t−b系希土類焼結磁石及びr−t−b系希土類焼結磁石用合金 |
JP2017073463A (ja) * | 2015-10-07 | 2017-04-13 | Tdk株式会社 | R−t−b系焼結磁石 |
JP2019102708A (ja) * | 2017-12-05 | 2019-06-24 | Tdk株式会社 | R−t−b系永久磁石 |
JP2019102707A (ja) * | 2017-12-05 | 2019-06-24 | Tdk株式会社 | R−t−b系永久磁石 |
US10428408B2 (en) | 2015-03-13 | 2019-10-01 | Tdk Corporation | R-T-B-based rare earth sintered magnet and alloy for R-T-B-based rare earth sintered magnet |
JP2020161788A (ja) * | 2019-03-19 | 2020-10-01 | 日立金属株式会社 | R−t−b系焼結磁石 |
JP2022535480A (ja) * | 2019-11-21 | 2022-08-09 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
JP2022542187A (ja) * | 2019-11-21 | 2022-09-29 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5274781B2 (ja) * | 2007-03-22 | 2013-08-28 | 昭和電工株式会社 | R−t−b系合金及びr−t−b系合金の製造方法、r−t−b系希土類永久磁石用微粉、r−t−b系希土類永久磁石 |
EP2302646B1 (en) * | 2008-06-13 | 2018-10-31 | Hitachi Metals, Ltd. | R-t-cu-mn-b type sintered magnet |
US20110074530A1 (en) * | 2009-09-30 | 2011-03-31 | General Electric Company | Mixed rare-earth permanent magnet and method of fabrication |
JP5093215B2 (ja) * | 2009-11-26 | 2012-12-12 | トヨタ自動車株式会社 | 焼結希土類磁石の製造方法 |
JP2011258935A (ja) * | 2010-05-14 | 2011-12-22 | Shin Etsu Chem Co Ltd | R−t−b系希土類焼結磁石 |
CN101819841A (zh) * | 2010-05-17 | 2010-09-01 | 上海交通大学 | 钕铁硼磁性材料及其制备方法 |
JP4951703B2 (ja) | 2010-09-30 | 2012-06-13 | 昭和電工株式会社 | R−t−b系希土類永久磁石用合金材料、r−t−b系希土類永久磁石の製造方法およびモーター |
US8572830B2 (en) | 2011-03-14 | 2013-11-05 | Apple Inc. | Method and apparatus for producing magnetic attachment system |
US9659260B2 (en) | 2011-03-15 | 2017-05-23 | Dan Caligor | Calendar based task and time management systems and methods |
US9261236B2 (en) * | 2012-09-24 | 2016-02-16 | Elwha Llc | Train propellant management systems and methods |
AU2014281646A1 (en) | 2013-06-17 | 2016-02-11 | Urban Mining Technology Company, Llc | Magnet recycling to create Nd-Fe-B magnets with improved or restored magnetic performance |
US9336932B1 (en) | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
US10923256B2 (en) * | 2015-06-25 | 2021-02-16 | Hitachi Metals, Ltd. | R-T-B-based sintered magnet and method for producing same |
JP6926861B2 (ja) * | 2017-09-08 | 2021-08-25 | Tdk株式会社 | R−t−b系永久磁石 |
CN115083714A (zh) | 2022-07-06 | 2022-09-20 | 烟台正海磁性材料股份有限公司 | 一种高矫顽力Nd-Fe-B系烧结磁体及其制备方法和应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5989401A (ja) | 1982-11-15 | 1984-05-23 | Sumitomo Special Metals Co Ltd | 永久磁石 |
JPS6223960A (ja) | 1985-07-24 | 1987-01-31 | Sumitomo Special Metals Co Ltd | 高性能永久磁石材料 |
JPS647503A (en) | 1986-07-23 | 1989-01-11 | Hitachi Metals Ltd | Permanent magnet with high thermal stability |
US4917778A (en) | 1989-05-26 | 1990-04-17 | Yugen Kaisha Johoku Riken Kogyo | Process for the corrosion protection of neodymium-iron-boron group sintered magnets |
EP1705671A2 (en) | 2005-03-23 | 2006-09-27 | Shin-Etsu Chemical Co., Ltd. | Rare earth permanent magnet |
JP2006303436A (ja) | 2005-03-23 | 2006-11-02 | Shin Etsu Chem Co Ltd | 希土類永久磁石 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1316375C (en) * | 1982-08-21 | 1993-04-20 | Masato Sagawa | Magnetic materials and permanent magnets |
US4792368A (en) * | 1982-08-21 | 1988-12-20 | Sumitomo Special Metals Co., Ltd. | Magnetic materials and permanent magnets |
JPS6034005A (ja) * | 1983-08-04 | 1985-02-21 | Sumitomo Special Metals Co Ltd | 永久磁石 |
US4983232A (en) * | 1987-01-06 | 1991-01-08 | Hitachi Metals, Ltd. | Anisotropic magnetic powder and magnet thereof and method of producing same |
US5227247A (en) * | 1989-06-13 | 1993-07-13 | Sps Technologies, Inc. | Magnetic materials |
US5405455A (en) * | 1991-06-04 | 1995-04-11 | Shin-Etsu Chemical Co. Ltd. | Rare earth-based permanent magnet |
JP4023138B2 (ja) * | 2001-02-07 | 2007-12-19 | 日立金属株式会社 | 鉄基希土類合金粉末および鉄基希土類合金粉末を含むコンパウンドならびにそれを用いた永久磁石 |
US7014718B2 (en) * | 2001-09-03 | 2006-03-21 | Showa Denko K.K. | Rare earth magnet alloy ingot, manufacturing method for the same, R-T-B type magnet alloy ingot, R-T-B type magnet, R-T-B type bonded magnet, R-T-B type exchange spring magnet alloy ingot, R-T-B type exchange spring magnet, and R-T-B type exchange spring bonded magnet |
JP4389427B2 (ja) * | 2002-02-05 | 2009-12-24 | 日立金属株式会社 | 希土類−鉄−硼素系磁石用合金粉末を用いた焼結磁石 |
MY142024A (en) * | 2005-03-23 | 2010-08-16 | Shinetsu Chemical Co | Rare earth permanent magnet |
JP4656323B2 (ja) * | 2006-04-14 | 2011-03-23 | 信越化学工業株式会社 | 希土類永久磁石材料の製造方法 |
-
2007
- 2007-05-02 JP JP2007541537A patent/JP4103937B1/ja active Active
- 2007-05-02 KR KR1020097023842A patent/KR101378090B1/ko active IP Right Grant
- 2007-05-02 CN CN2007800528152A patent/CN101689416B/zh active Active
- 2007-05-02 WO PCT/JP2007/059384 patent/WO2008139559A1/ja active Application Filing
- 2007-05-02 EP EP07742819A patent/EP2034493B1/en not_active Revoked
-
2008
- 2008-06-04 US US12/132,738 patent/US20080274009A1/en not_active Abandoned
-
2009
- 2009-09-18 US US12/562,336 patent/US7789933B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5989401A (ja) | 1982-11-15 | 1984-05-23 | Sumitomo Special Metals Co Ltd | 永久磁石 |
JPS6223960A (ja) | 1985-07-24 | 1987-01-31 | Sumitomo Special Metals Co Ltd | 高性能永久磁石材料 |
JPS647503A (en) | 1986-07-23 | 1989-01-11 | Hitachi Metals Ltd | Permanent magnet with high thermal stability |
US4917778A (en) | 1989-05-26 | 1990-04-17 | Yugen Kaisha Johoku Riken Kogyo | Process for the corrosion protection of neodymium-iron-boron group sintered magnets |
EP1705671A2 (en) | 2005-03-23 | 2006-09-27 | Shin-Etsu Chemical Co., Ltd. | Rare earth permanent magnet |
JP2006303436A (ja) | 2005-03-23 | 2006-11-02 | Shin Etsu Chem Co Ltd | 希土類永久磁石 |
Non-Patent Citations (2)
Title |
---|
S. HIROSAWA ET AL.: "Magnetization and Magnetic Anisotropy of Nd2Fe14B Measured on Single Crystals", J. APPL. PHYS., vol. 59, 1986, pages 873 - 879 |
See also references of EP2034493A4 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102361998B (zh) * | 2009-03-31 | 2013-07-17 | 日立金属株式会社 | R-t-b-m系烧结磁体用合金及其制造方法 |
CN102361998A (zh) * | 2009-03-31 | 2012-02-22 | 日立金属株式会社 | R-t-b-m系烧结磁体用合金及其制造方法 |
JP5692231B2 (ja) * | 2010-07-16 | 2015-04-01 | トヨタ自動車株式会社 | 希土類磁石の製造方法、及び希土類磁石 |
US9520230B2 (en) | 2010-10-25 | 2016-12-13 | Toyota Jidosha Kabushiki Kaisha | Production method of rare earth magnet |
JP2014502034A (ja) * | 2010-10-25 | 2014-01-23 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
US10428408B2 (en) | 2015-03-13 | 2019-10-01 | Tdk Corporation | R-T-B-based rare earth sintered magnet and alloy for R-T-B-based rare earth sintered magnet |
JP2016169438A (ja) * | 2015-03-13 | 2016-09-23 | 昭和電工株式会社 | R−t−b系希土類焼結磁石及びr−t−b系希土類焼結磁石用合金 |
JP2017073463A (ja) * | 2015-10-07 | 2017-04-13 | Tdk株式会社 | R−t−b系焼結磁石 |
JP2019102708A (ja) * | 2017-12-05 | 2019-06-24 | Tdk株式会社 | R−t−b系永久磁石 |
JP2019102707A (ja) * | 2017-12-05 | 2019-06-24 | Tdk株式会社 | R−t−b系永久磁石 |
JP2020161788A (ja) * | 2019-03-19 | 2020-10-01 | 日立金属株式会社 | R−t−b系焼結磁石 |
JP2022535480A (ja) * | 2019-11-21 | 2022-08-09 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
JP2022542187A (ja) * | 2019-11-21 | 2022-09-29 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
JP7220301B2 (ja) | 2019-11-21 | 2023-02-09 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
JP7266751B2 (ja) | 2019-11-21 | 2023-04-28 | フージャン チャンティン ゴールデン ドラゴン レア-アース カンパニー リミテッド | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
Also Published As
Publication number | Publication date |
---|---|
EP2034493A1 (en) | 2009-03-11 |
CN101689416A (zh) | 2010-03-31 |
JPWO2008139559A1 (ja) | 2010-07-29 |
US20080274009A1 (en) | 2008-11-06 |
KR20100016577A (ko) | 2010-02-12 |
EP2034493A4 (en) | 2009-07-22 |
CN101689416B (zh) | 2012-10-03 |
US20100008814A1 (en) | 2010-01-14 |
EP2034493B1 (en) | 2012-12-05 |
KR101378090B1 (ko) | 2014-03-27 |
JP4103937B1 (ja) | 2008-06-18 |
US7789933B2 (en) | 2010-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2008139559A1 (ja) | R-t-b系焼結磁石 | |
WO2008139556A1 (ja) | R-t-b系焼結磁石 | |
WO2009075351A1 (ja) | R-t-b系合金及びr-t-b系合金の製造方法、r-t-b系希土類永久磁石用微粉、r-t-b系希土類永久磁石 | |
GB2443187A (en) | Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same | |
WO2009004994A1 (ja) | 希土類磁石 | |
EP1462531A3 (en) | R-T-B system rare earth permanent magnet | |
MY142124A (en) | R-fe-b based rare earth permanent magnet material | |
PH12013000103B1 (en) | Rare earth sintered magnet and making method | |
EP1860668A4 (en) | R-T-B BASED, SINTERED MAGNET | |
PH12015500458B1 (en) | Nd-based sintered magnet and its preparation | |
EP2797086A3 (en) | R-T-B Rare earth sintered magnet and method of manufacturing the same | |
EP1675133A3 (en) | Nd-Fe-B rare earth permanent magnet material | |
AU2002358316A8 (en) | Alloy flake for rare earth magnet, production method thereof, alloy powder for rare earth sintered magnet, rare earth sintered magnet, alloy powder for bonded magnet and bonded magnet | |
WO2008096621A1 (ja) | R-t-b系合金とその製造方法、r-t-b系希土類永久磁石用微粉、r-t-b系希土類永久磁石 | |
TW200742229A (en) | A method for fabricating a rotary, a bonded magnet, a magnetic roll and a ferrite sintered magnet | |
WO2008123251A1 (ja) | 永久磁石式回転機およびその製造方法 | |
WO2008114571A1 (ja) | R-t-b系合金及びr-t-b系合金の製造方法、r-t-b系希土類永久磁石用微粉、r-t-b系希土類永久磁石 | |
TW200746185A (en) | Method for producing rare earth permanent magnet material | |
EP1879201A4 (en) | RARE EARTH SINTER MAGNET AND PROCESS FOR PRODUCING THE SAME | |
PL2178096T3 (pl) | Spiekany magnes typu R-Fe-B na bazie pierwiastków ziem rzadkich | |
EP1662516A4 (en) | FRITTE R-T-B MAGNET, AND RARE EARTH ALLOY | |
WO2008048277A3 (en) | Nanostructured mn-al permanent magnets and methods of producing same | |
DE602004015695D1 (de) | Anisotroper Seltenerdverbundmagnet, Zusammensetzung für anisotropen Seltenerdverbundmagneten und zugehörige Herstellungsverfahren | |
WO2008132801A1 (ja) | R-t-b系焼結磁石およびその製造方法 | |
EP1465212A4 (en) | RARE TERMINAL PERMANENT MAGNET ON R-T-B BASE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780052815.2 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007541537 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007742819 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07742819 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20097023842 Country of ref document: KR Kind code of ref document: A |