EP1460650A4 - PERMANENT MAGNET WITH ELEMENTS OF RARE EARTHS IN ALLOY OF R-T-B - Google Patents
PERMANENT MAGNET WITH ELEMENTS OF RARE EARTHS IN ALLOY OF R-T-BInfo
- Publication number
- EP1460650A4 EP1460650A4 EP03748612A EP03748612A EP1460650A4 EP 1460650 A4 EP1460650 A4 EP 1460650A4 EP 03748612 A EP03748612 A EP 03748612A EP 03748612 A EP03748612 A EP 03748612A EP 1460650 A4 EP1460650 A4 EP 1460650A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent magnet
- rare earth
- earth element
- based rare
- element permanent
- 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.)
- Granted
Links
Classifications
-
- 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
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
- C22C33/0228—Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite
-
- 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%
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002287033 | 2002-09-30 | ||
JP2002287033 | 2002-09-30 | ||
JP2003092890 | 2003-03-28 | ||
JP2003092890 | 2003-03-28 | ||
PCT/JP2003/012491 WO2004029999A1 (ja) | 2002-09-30 | 2003-09-30 | R−t−b系希土類永久磁石 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1460650A1 EP1460650A1 (en) | 2004-09-22 |
EP1460650A4 true EP1460650A4 (en) | 2005-03-30 |
EP1460650B1 EP1460650B1 (en) | 2007-11-14 |
Family
ID=32044658
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03748613A Expired - Lifetime EP1460651B1 (en) | 2002-09-30 | 2003-09-30 | Method for producing r-t-b based rare earth element permanent magnet |
EP03748612A Expired - Lifetime EP1460650B1 (en) | 2002-09-30 | 2003-09-30 | R-t-b based rare earth element permanent magnet |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03748613A Expired - Lifetime EP1460651B1 (en) | 2002-09-30 | 2003-09-30 | Method for producing r-t-b based rare earth element permanent magnet |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1460651B1 (ja) |
JP (2) | JP4076179B2 (ja) |
CN (2) | CN1295713C (ja) |
DE (2) | DE60317460T2 (ja) |
WO (2) | WO2004029999A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7199690B2 (en) | 2003-03-27 | 2007-04-03 | Tdk Corporation | R-T-B system rare earth permanent magnet |
WO2005105343A1 (ja) * | 2004-04-30 | 2005-11-10 | Neomax Co., Ltd. | 希土類磁石用原料合金および粉末ならびに焼結磁石の製造方法 |
JP4618437B2 (ja) * | 2006-03-30 | 2011-01-26 | Tdk株式会社 | 希土類永久磁石の製造方法およびその原料合金 |
CN101471165B (zh) * | 2007-12-26 | 2012-09-19 | 北京中科三环高技术股份有限公司 | 钕铁硼烧结稀土永磁合金及其制备方法 |
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 |
DE112013003109T5 (de) * | 2012-06-22 | 2015-02-26 | Tdk Corp. | Gesinterter Magnet |
JP6314380B2 (ja) * | 2013-07-23 | 2018-04-25 | Tdk株式会社 | 希土類磁石、電動機、及び電動機を備える装置 |
CN106782971A (zh) * | 2016-12-05 | 2017-05-31 | 湖南航天磁电有限责任公司 | 一种钕铁硼材料及其制备方法 |
JP6849806B2 (ja) * | 2016-12-29 | 2021-03-31 | 北京中科三環高技術股▲ふん▼有限公司Beijing Zhong Ke San Huan Hi−Tech Co.,Ltd. | 微粒子希土類合金鋳片、その製造方法、および回転冷却ロール装置 |
CN107358998A (zh) * | 2017-07-20 | 2017-11-17 | 杭州乐荣电线电器有限公司 | 扁平抗干扰可折叠软数据线 |
CN115359988A (zh) * | 2022-08-24 | 2022-11-18 | 宁波爱维森材料研发科技有限公司 | 一种高性能含铈稀土永磁体及其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242187A1 (en) * | 1986-04-15 | 1987-10-21 | TDK Corporation | Permanent magnet and method of producing same |
EP0302395A1 (en) * | 1987-07-30 | 1989-02-08 | TDK Corporation | Permanent magnets |
US4895607A (en) * | 1988-07-25 | 1990-01-23 | Kubota, Ltd. | Iron-neodymium-boron permanent magnet alloys prepared by consolidation of amorphous powders |
JPH1041113A (ja) * | 1996-07-25 | 1998-02-13 | Mitsubishi Materials Corp | 優れた磁気特性を有する希土類磁石材料粉末およびその製造方法 |
JPH10259459A (ja) * | 1997-01-14 | 1998-09-29 | Mitsubishi Materials Corp | 希土類磁石粉末製造用原料合金およびこの原料合金を用いた希土類磁石粉末の製造方法 |
EP1014392A2 (en) * | 1998-12-15 | 2000-06-28 | Shin-Etsu Chemical Co., Ltd. | Rare earth/iron/boron-based permanent magnet alloy composition |
EP1164599A2 (en) * | 2000-06-13 | 2001-12-19 | Shin-Etsu Chemical Co., Ltd. | R-Fe-B base permanent magnet materials |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01196104A (ja) * | 1988-02-01 | 1989-08-07 | Tdk Corp | 希土類合金磁石の製造方法 |
JP3367726B2 (ja) * | 1993-11-08 | 2003-01-20 | ティーディーケイ株式会社 | 永久磁石の製造方法 |
JP3724513B2 (ja) * | 1993-11-02 | 2005-12-07 | Tdk株式会社 | 永久磁石の製造方法 |
US5858123A (en) * | 1995-07-12 | 1999-01-12 | Hitachi Metals, Ltd. | Rare earth permanent magnet and method for producing the same |
JP2891215B2 (ja) * | 1996-12-17 | 1999-05-17 | 三菱マテリアル株式会社 | 耐食性および磁気特性に優れた希土類−B−Fe系焼結磁石の製造方法 |
JPH1064712A (ja) * | 1997-07-18 | 1998-03-06 | Hitachi Metals Ltd | R−Fe−B系希土類焼結磁石 |
ATE241710T1 (de) * | 1998-08-28 | 2003-06-15 | Showa Denko Kk | Legierung zur verwendung bei der herstellung von gesinterten magneten auf r-t-b-basis und verfahren zur herstellung von gesinterten magneten auf r-t-b-basis |
DE69911138T2 (de) * | 1998-10-14 | 2004-07-22 | Hitachi Metals, Ltd. | Gesinterter R-T-B-Dauermagnet |
JP3951099B2 (ja) * | 2000-06-13 | 2007-08-01 | 信越化学工業株式会社 | R−Fe−B系希土類永久磁石材料 |
JP2002164239A (ja) * | 2000-09-14 | 2002-06-07 | Hitachi Metals Ltd | 希土類焼結磁石の製造方法およびリング磁石およびアークセグメント磁石 |
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 |
-
2003
- 2003-09-30 DE DE60317460T patent/DE60317460T2/de not_active Expired - Lifetime
- 2003-09-30 WO PCT/JP2003/012491 patent/WO2004029999A1/ja active IP Right Grant
- 2003-09-30 WO PCT/JP2003/012492 patent/WO2004030000A1/ja active IP Right Grant
- 2003-09-30 EP EP03748613A patent/EP1460651B1/en not_active Expired - Lifetime
- 2003-09-30 JP JP2004539584A patent/JP4076179B2/ja not_active Expired - Lifetime
- 2003-09-30 CN CNB038013142A patent/CN1295713C/zh not_active Expired - Lifetime
- 2003-09-30 CN CNB038013134A patent/CN100334662C/zh not_active Expired - Lifetime
- 2003-09-30 EP EP03748612A patent/EP1460650B1/en not_active Expired - Lifetime
- 2003-09-30 JP JP2004539583A patent/JP4076178B2/ja not_active Expired - Lifetime
- 2003-09-30 DE DE60311960T patent/DE60311960T2/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0242187A1 (en) * | 1986-04-15 | 1987-10-21 | TDK Corporation | Permanent magnet and method of producing same |
EP0302395A1 (en) * | 1987-07-30 | 1989-02-08 | TDK Corporation | Permanent magnets |
US4895607A (en) * | 1988-07-25 | 1990-01-23 | Kubota, Ltd. | Iron-neodymium-boron permanent magnet alloys prepared by consolidation of amorphous powders |
JPH1041113A (ja) * | 1996-07-25 | 1998-02-13 | Mitsubishi Materials Corp | 優れた磁気特性を有する希土類磁石材料粉末およびその製造方法 |
JPH10259459A (ja) * | 1997-01-14 | 1998-09-29 | Mitsubishi Materials Corp | 希土類磁石粉末製造用原料合金およびこの原料合金を用いた希土類磁石粉末の製造方法 |
EP1014392A2 (en) * | 1998-12-15 | 2000-06-28 | Shin-Etsu Chemical Co., Ltd. | Rare earth/iron/boron-based permanent magnet alloy composition |
EP1164599A2 (en) * | 2000-06-13 | 2001-12-19 | Shin-Etsu Chemical Co., Ltd. | R-Fe-B base permanent magnet materials |
Non-Patent Citations (6)
Title |
---|
BESENICAR S: "THE INFLUENCE OF ZRO2 ADDITION ON THE MICROSTRUCTURE AND THE MAGNETIC PROPERTIES OF ND-DY-FE-B MAGNETS", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 104 - 107, no. PART 2, 1 February 1992 (1992-02-01), pages 1175 - 1178, XP000329968, ISSN: 0304-8853 * |
KIM A S ET AL: "MICROSTRUCTURE OF ZR CONTAINING NDFEB", IEEE TRANSACTIONS ON MAGNETICS, IEEE INC. NEW YORK, US, vol. 33, no. 5, PART 2, September 1997 (1997-09-01), pages 3823 - 3825, XP000703229, ISSN: 0018-9464 * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30) * |
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
POLLARD R J ET AL: "EFFECT OF ZR ADDITIONS ON THE MICROSTRUCTURAL AND MAGNETIC PROPERTIES OF NDFEB BASED MAGNETS", IEEE TRANSACTIONS ON MAGNETICS, IEEE INC. NEW YORK, US, vol. 24, no. 2, 1 March 1988 (1988-03-01), pages 1626 - 1628, XP000174162, ISSN: 0018-9464 * |
See also references of WO2004029999A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004030000A1 (ja) | 2004-04-08 |
CN1295713C (zh) | 2007-01-17 |
EP1460651A1 (en) | 2004-09-22 |
DE60311960T2 (de) | 2007-10-31 |
JPWO2004029999A1 (ja) | 2006-01-26 |
EP1460650B1 (en) | 2007-11-14 |
WO2004029999A1 (ja) | 2004-04-08 |
EP1460651A4 (en) | 2005-03-23 |
CN1572005A (zh) | 2005-01-26 |
JP4076178B2 (ja) | 2008-04-16 |
JP4076179B2 (ja) | 2008-04-16 |
EP1460651B1 (en) | 2007-02-21 |
DE60317460D1 (de) | 2007-12-27 |
CN1572006A (zh) | 2005-01-26 |
EP1460650A1 (en) | 2004-09-22 |
DE60317460T2 (de) | 2008-09-18 |
CN100334662C (zh) | 2007-08-29 |
DE60311960D1 (de) | 2007-04-05 |
JPWO2004030000A1 (ja) | 2006-01-26 |
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