EP1460650A4 - Aimant permanent a elements des terres rares en alliage de r-t-b - Google Patents

Aimant permanent a elements des terres rares en alliage de r-t-b

Info

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
phase
elements
alloy
rare earths
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
Application number
EP03748612A
Other languages
German (de)
English (en)
Japanese (ja)
Other versions
EP1460650A1 (fr
EP1460650B1 (fr
Inventor
Chikara Ishizaka
Gouichi Nishizawa
Tetsuya Hidaka
Akira Fukuno
Nobuya Uchida
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
Publication of EP1460650A1 publication Critical patent/EP1460650A1/fr
Publication of EP1460650A4 publication Critical patent/EP1460650A4/fr
Application granted granted Critical
Publication of EP1460650B1 publication Critical patent/EP1460650B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 pre-alloyed powders or a master alloy
    • C22C33/0228—Using a mixture of pre-alloyed 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

L'invention concerne un aimant permanent à éléments des terres rares en alliage de R-T-B, qui comprend un produit fritté dont la phase principale comprend une phase R2T14B dans laquelle R représente un ou plusieurs éléments des terres rares, y compris Y; et T représente un ou plusieurs éléments des métaux de transition, y compris Fe ou Fe et Co. Le produit fritté comprend également une phase de joint de grain présentant une teneur du R supérieure à celle de la phase principale. Un produit riche en Zr et ayant la forme d'une plaque ou d'une aiguille est présent dans la phase R2T14B. L'aimant permanent à éléments des terres rares en alliage de R-T-B contenant les éléments ci-dessus autorise la suppression du grossissement des grains et la réduction au minimum de la dégradation des caractéristiques magnétiques, ainsi que l'élargissement de la gamme des températures de frittage.
EP03748612A 2002-09-30 2003-09-30 Aimant permanent a elements en terres rares en alliage de r-t-b Expired - Lifetime EP1460650B1 (fr)

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 (fr) 2002-09-30 2003-09-30 Aimant permanent a elements des terres rares en alliage de r-t-b

Publications (3)

Publication Number Publication Date
EP1460650A1 EP1460650A1 (fr) 2004-09-22
EP1460650A4 true EP1460650A4 (fr) 2005-03-30
EP1460650B1 EP1460650B1 (fr) 2007-11-14

Family

ID=32044658

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03748613A Expired - Lifetime EP1460651B1 (fr) 2002-09-30 2003-09-30 Methode de production d'un aimant permanent a elements des terres rares en alliage de r-t-b
EP03748612A Expired - Lifetime EP1460650B1 (fr) 2002-09-30 2003-09-30 Aimant permanent a elements en terres rares en alliage de r-t-b

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03748613A Expired - Lifetime EP1460651B1 (fr) 2002-09-30 2003-09-30 Methode de production d'un aimant permanent a elements des terres rares en alliage de r-t-b

Country Status (5)

Country Link
EP (2) EP1460651B1 (fr)
JP (2) JP4076178B2 (fr)
CN (2) CN100334662C (fr)
DE (2) DE60317460T2 (fr)
WO (2) WO2004029999A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
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 (fr) * 2004-04-30 2005-11-10 Neomax Co., Ltd. Méthodes pour produire un alliage de matière première pour une poudre d'aimant rare sur la terre et aimant fritté
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
WO2018121112A1 (fr) 2016-12-29 2018-07-05 北京中科三环高技术股份有限公司 Pièce de coulée en alliage de terres rares à grains fins, procédé de préparation et dispositif de rouleau de refroidissement rotatif
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
JP7463791B2 (ja) * 2020-03-23 2024-04-09 Tdk株式会社 Ｒ－ｔ－ｂ系希土類焼結磁石およびｒ－ｔ－ｂ系希土類焼結磁石の製造方法
CN113936880B (zh) * 2021-09-30 2022-09-13 浙江英洛华磁业有限公司 一种高强度r-t-b稀土永磁体及其制备方法
CN113990593B (zh) * 2021-10-08 2025-01-14 宁波市合美达新材料有限公司 一种钕铁硼磁体及其制备方法
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242187A1 (fr) * 1986-04-15 1987-10-21 TDK Corporation Aimant permanent et sa méthode de fabrication
EP0302395A1 (fr) * 1987-07-30 1989-02-08 TDK Corporation Aimant permanent
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 (fr) * 1998-12-15 2000-06-28 Shin-Etsu Chemical Co., Ltd. Alliage à base de terre rare/fer/bore pour aimant permanent
EP1164599A2 (fr) * 2000-06-13 2001-12-19 Shin-Etsu Chemical Co., Ltd. Matériaux magnétiquement permanents à base de R-Fe-B

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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
CN1094991C (zh) * 1998-08-28 2002-11-27 昭和电工株式会社 在r－t－b系烧结磁铁的制造中使用的合金
EP0994493B1 (fr) * 1998-10-14 2003-09-10 Hitachi Metals, Ltd. Aimant permanent fritté du type R-T-B
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0242187A1 (fr) * 1986-04-15 1987-10-21 TDK Corporation Aimant permanent et sa méthode de fabrication
EP0302395A1 (fr) * 1987-07-30 1989-02-08 TDK Corporation Aimant permanent
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 (fr) * 1998-12-15 2000-06-28 Shin-Etsu Chemical Co., Ltd. Alliage à base de terre rare/fer/bore pour aimant permanent
EP1164599A2 (fr) * 2000-06-13 2001-12-19 Shin-Etsu Chemical Co., Ltd. Matériaux magnétiquement permanents à base de R-Fe-B

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
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
JP4076179B2 (ja) 2008-04-16
DE60311960D1 (de) 2007-04-05
DE60317460D1 (de) 2007-12-27
DE60317460T2 (de) 2008-09-18
DE60311960T2 (de) 2007-10-31
EP1460651B1 (fr) 2007-02-21
WO2004029999A1 (fr) 2004-04-08
EP1460651A4 (fr) 2005-03-23
JP4076178B2 (ja) 2008-04-16
CN1572006A (zh) 2005-01-26
CN100334662C (zh) 2007-08-29
JPWO2004030000A1 (ja) 2006-01-26
EP1460651A1 (fr) 2004-09-22
EP1460650A1 (fr) 2004-09-22
EP1460650B1 (fr) 2007-11-14
JPWO2004029999A1 (ja) 2006-01-26
CN1295713C (zh) 2007-01-17
WO2004030000A1 (fr) 2004-04-08
CN1572005A (zh) 2005-01-26

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