CN101657864B - R-t-b系烧结磁铁及其制造方法 - Google Patents
R-t-b系烧结磁铁及其制造方法 Download PDFInfo
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- CN101657864B CN101657864B CN200880011881.XA CN200880011881A CN101657864B CN 101657864 B CN101657864 B CN 101657864B CN 200880011881 A CN200880011881 A CN 200880011881A CN 101657864 B CN101657864 B CN 101657864B
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- rare earth
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- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 103
- 238000005245 sintering Methods 0.000 claims abstract description 49
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 9
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 9
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims description 163
- 229910045601 alloy Inorganic materials 0.000 claims description 163
- 239000000843 powder Substances 0.000 claims description 122
- 150000002910 rare earth metals Chemical class 0.000 claims description 86
- 239000002994 raw material Substances 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 43
- 230000008602 contraction Effects 0.000 claims description 25
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- 230000008569 process Effects 0.000 claims description 16
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 229910052718 tin Inorganic materials 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 11
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- 239000013078 crystal Substances 0.000 abstract 1
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 description 33
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- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01F41/0266—Moulding; Pressing
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
- C21D8/1211—Rapid solidification; Thin strip casting
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Composite Materials (AREA)
- Electromagnetism (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP106051/2007 | 2007-04-13 | ||
JP2007106051 | 2007-04-13 | ||
PCT/JP2008/000957 WO2008132801A1 (ja) | 2007-04-13 | 2008-04-11 | R-t-b系焼結磁石およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101657864A CN101657864A (zh) | 2010-02-24 |
CN101657864B true CN101657864B (zh) | 2013-05-22 |
Family
ID=39925273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200880011881.XA Active CN101657864B (zh) | 2007-04-13 | 2008-04-11 | R-t-b系烧结磁铁及其制造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8142573B2 (zh) |
JP (1) | JP5273039B2 (zh) |
CN (1) | CN101657864B (zh) |
DE (1) | DE112008000992T5 (zh) |
WO (1) | WO2008132801A1 (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101847487B (zh) * | 2010-06-30 | 2012-05-30 | 烟台正海磁性材料股份有限公司 | 梯度矫顽力钕铁硼磁体及其生产方法 |
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 |
CN102208238B (zh) * | 2011-03-01 | 2012-11-14 | 中国科学院宁波材料技术与工程研究所 | 一种无钕无铽高矫顽力烧结稀土永磁体及其制备方法 |
US9613748B2 (en) * | 2011-06-27 | 2017-04-04 | Hitachi Metals, Ltd. | RH diffusion source, and method for producing R-T-B-based sintered magnet using same |
JP6265368B2 (ja) * | 2013-04-22 | 2018-01-24 | 昭和電工株式会社 | R−t−b系希土類焼結磁石およびその製造方法 |
DE102013013335A1 (de) * | 2013-08-06 | 2015-02-12 | Technische Universität Dortmund | Verfahren zur Herstellung von Werkzeugspulen und/oder Werkzeugen für die Magnetumformung insbesondere dünnwandiger Werkstücke aus elektrisch leitfähigen Werkstoffen sowie entsprechend hergestellte Werkzeugspule |
JP2015207687A (ja) * | 2014-04-22 | 2015-11-19 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
CN104454852B (zh) | 2014-11-28 | 2016-05-18 | 烟台首钢磁性材料股份有限公司 | 一种永磁钕铁硼磁钢绝缘粘接的方法及专用挤压工装 |
DE102017223268A1 (de) * | 2017-12-19 | 2019-06-19 | Robert Bosch Gmbh | Verfahren zur Herstellung eines magnetischen Materials, magnetisches Material, Hartmagnet, Elektromotor, Starter und Generator |
CN110473686A (zh) * | 2019-09-23 | 2019-11-19 | 中钢集团安徽天源科技股份有限公司 | 一种低成本制备高性能钕铁硼的方法 |
JP7468058B2 (ja) | 2020-03-27 | 2024-04-16 | 株式会社プロテリアル | R-t-b系焼結磁石の製造方法 |
EP3933859B1 (en) * | 2020-04-30 | 2023-08-02 | Huawei Technologies Co., Ltd. | Magnetic stabilization method for permanent magnet, magnetically stabilized permanent magnet, and permanent magnet motor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1251464A (zh) * | 1998-10-14 | 2000-04-26 | 日立金属株式会社 | R—t—b系烧结型永磁体 |
CN1457497A (zh) * | 2001-05-30 | 2003-11-19 | 住友特殊金属株式会社 | 稀土磁体用烧结压制体的制备方法 |
WO2006098204A1 (ja) * | 2005-03-14 | 2006-09-21 | Tdk Corporation | R-t-b系焼結磁石 |
WO2006112403A1 (ja) * | 2005-04-15 | 2006-10-26 | Hitachi Metals, Ltd. | 希土類焼結磁石とその製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57148566A (en) | 1981-03-09 | 1982-09-13 | Hitachi Metals Ltd | Composite permanent magnet for magnetic field |
JPS57189274U (zh) | 1981-05-25 | 1982-12-01 | ||
JPS57189275U (zh) | 1981-05-26 | 1982-12-01 | ||
JPS5829358A (ja) | 1981-08-17 | 1983-02-21 | Hitachi Metals Ltd | 界磁用複合永久磁石 |
JPS58174977U (ja) | 1982-05-14 | 1983-11-22 | 株式会社日立製作所 | 磁石式直流機 |
JPS59117281A (ja) | 1982-12-24 | 1984-07-06 | Toshiba Corp | 超電導装置 |
JPS59117281U (ja) | 1983-01-27 | 1984-08-08 | 住友特殊金属株式会社 | 界磁用永久磁石 |
JPS6159705A (ja) * | 1984-08-30 | 1986-03-27 | Hitachi Metals Ltd | 複合磁石の製造方法 |
ATE167239T1 (de) | 1992-02-15 | 1998-06-15 | Santoku Metal Ind | Legierungsblock für einen dauermagnet, anisotropes pulver für einen dauermagnet, verfahren zur herstellung eines solchen und dauermagneten |
JP4150983B2 (ja) | 1998-05-07 | 2008-09-17 | 日立金属株式会社 | 電気抵抗率の傾斜機能を有する永久磁石とその製造方法 |
JP3846835B2 (ja) * | 1998-10-14 | 2006-11-15 | 株式会社Neomax | R−t−b系焼結型永久磁石 |
DE60221448T2 (de) * | 2001-03-30 | 2007-11-29 | Neomax Co., Ltd. | Seltenerdlegierungs Sinterformteil |
JP4788427B2 (ja) * | 2006-03-23 | 2011-10-05 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石およびその製造方法 |
JP4677942B2 (ja) * | 2006-03-31 | 2011-04-27 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石の製造方法 |
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2008
- 2008-04-11 US US12/595,293 patent/US8142573B2/en active Active
- 2008-04-11 CN CN200880011881.XA patent/CN101657864B/zh active Active
- 2008-04-11 JP JP2009511664A patent/JP5273039B2/ja active Active
- 2008-04-11 WO PCT/JP2008/000957 patent/WO2008132801A1/ja active Application Filing
- 2008-04-11 DE DE112008000992T patent/DE112008000992T5/de active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1251464A (zh) * | 1998-10-14 | 2000-04-26 | 日立金属株式会社 | R—t—b系烧结型永磁体 |
CN1457497A (zh) * | 2001-05-30 | 2003-11-19 | 住友特殊金属株式会社 | 稀土磁体用烧结压制体的制备方法 |
WO2006098204A1 (ja) * | 2005-03-14 | 2006-09-21 | Tdk Corporation | R-t-b系焼結磁石 |
WO2006112403A1 (ja) * | 2005-04-15 | 2006-10-26 | Hitachi Metals, Ltd. | 希土類焼結磁石とその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US8142573B2 (en) | 2012-03-27 |
WO2008132801A1 (ja) | 2008-11-06 |
JP5273039B2 (ja) | 2013-08-28 |
DE112008000992T5 (de) | 2010-03-25 |
US20100045411A1 (en) | 2010-02-25 |
JPWO2008132801A1 (ja) | 2010-07-22 |
CN101657864A (zh) | 2010-02-24 |
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Application publication date: 20100224 Assignee: Beijing Jingci Magnet Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000374 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130703 Application publication date: 20100224 Assignee: Antai Science and Technology Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000365 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130701 Application publication date: 20100224 Assignee: Beijing Zhongke Sanhuan High-Tech Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000364 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130701 Application publication date: 20100224 Assignee: Beijing Jingci Magnet Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000374 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130703 Application publication date: 20100224 Assignee: Antai Science and Technology Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000365 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130701 Application publication date: 20100224 Assignee: Beijing Zhongke Sanhuan High-Tech Co., Ltd. Assignor: Hitachi Metals Co., Ltd. Contract record no.: 2013990000364 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20130701 |
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Application publication date: 20100224 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20170209 Application publication date: 20100224 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: R-T-B sintered magnet and method for producing the same Granted publication date: 20130522 License type: Common License Record date: 20170209 |
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Correction item: A transferee of the entry into force of the contract Correct: Hitachi metal ring magnets (Nantong) Co. Ltd. False: Hitachi metal ring Ci material (Nantong) Co. Ltd. Number: 11 Volume: 33 |