CN102282279A - R-t-b系烧结磁铁的制造方法 - Google Patents
R-t-b系烧结磁铁的制造方法 Download PDFInfo
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- CN102282279A CN102282279A CN2010800047563A CN201080004756A CN102282279A CN 102282279 A CN102282279 A CN 102282279A CN 2010800047563 A CN2010800047563 A CN 2010800047563A CN 201080004756 A CN201080004756 A CN 201080004756A CN 102282279 A CN102282279 A CN 102282279A
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- alloy powder
- earth element
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- 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
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
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- 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%
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
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- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
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JP2009007305 | 2009-01-16 | ||
JP2009-078230 | 2009-03-27 | ||
JP2009078230 | 2009-03-27 | ||
JP2009-007305 | 2009-03-31 | ||
JP2009-277240 | 2009-12-07 | ||
JP2009277240 | 2009-12-07 | ||
PCT/JP2010/000178 WO2010082492A1 (ja) | 2009-01-16 | 2010-01-14 | R-t-b系焼結磁石の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102282279A true CN102282279A (zh) | 2011-12-14 |
CN102282279B CN102282279B (zh) | 2013-10-02 |
Family
ID=42339744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010800047563A Active CN102282279B (zh) | 2009-01-16 | 2010-01-14 | R-t-b系烧结磁铁的制造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8287661B2 (zh) |
EP (1) | EP2388350B1 (zh) |
JP (1) | JP5561170B2 (zh) |
CN (1) | CN102282279B (zh) |
WO (1) | WO2010082492A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103366939A (zh) * | 2012-03-29 | 2013-10-23 | 通用电气公司 | 永磁体的制造方法 |
CN104952578A (zh) * | 2014-03-27 | 2015-09-30 | 日立金属株式会社 | R-t-b系合金粉末和r-t-b系烧结磁体 |
CN106601407A (zh) * | 2017-01-23 | 2017-04-26 | 包头市神头稀土科技发展有限公司 | 提高钕铁硼磁体矫顽力的方法 |
CN107453568A (zh) * | 2016-05-30 | 2017-12-08 | Tdk株式会社 | 电动机 |
CN108695034A (zh) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | R-t-b系烧结磁铁 |
CN112927911A (zh) * | 2019-12-06 | 2021-06-08 | 宁波科宁达工业有限公司 | 一种磁体的制备方法 |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5447736B2 (ja) * | 2011-05-25 | 2014-03-19 | Tdk株式会社 | 希土類焼結磁石、希土類焼結磁石の製造方法及び回転機 |
JP6044866B2 (ja) * | 2011-09-29 | 2016-12-14 | 日立金属株式会社 | R−t−b系焼結磁石の製造方法 |
JP6089535B2 (ja) * | 2011-10-28 | 2017-03-08 | Tdk株式会社 | R−t−b系焼結磁石 |
CN102982936B (zh) * | 2012-11-09 | 2015-09-23 | 厦门钨业股份有限公司 | 烧结Nd-Fe-B系磁铁的省却工序的制作方法 |
JP6202722B2 (ja) * | 2012-12-06 | 2017-09-27 | 昭和電工株式会社 | R−t−b系希土類焼結磁石、r−t−b系希土類焼結磁石の製造方法 |
JP2015135935A (ja) * | 2013-03-28 | 2015-07-27 | Tdk株式会社 | 希土類磁石 |
JP6361089B2 (ja) * | 2013-04-22 | 2018-07-25 | Tdk株式会社 | R−t−b系焼結磁石 |
JP5464289B1 (ja) * | 2013-04-22 | 2014-04-09 | Tdk株式会社 | R−t−b系焼結磁石 |
CN103219117B (zh) * | 2013-05-05 | 2016-04-06 | 沈阳中北真空磁电科技有限公司 | 一种双合金钕铁硼稀土永磁材料及制造方法 |
CN105723480B (zh) | 2013-06-17 | 2018-07-17 | 城市矿业科技有限责任公司 | 磁铁再生以产生磁性性能改善或恢复的Nd-Fe-B磁铁 |
US10388442B2 (en) * | 2013-08-12 | 2019-08-20 | Hitachi Metals, Ltd. | R-T-B based sintered magnet and method for producing R-T-B based sintered magnet |
WO2015030231A1 (ja) * | 2013-09-02 | 2015-03-05 | 日立金属株式会社 | R-t-b系焼結磁石の製造方法 |
JP5924335B2 (ja) | 2013-12-26 | 2016-05-25 | トヨタ自動車株式会社 | 希土類磁石とその製造方法 |
EP3131099A4 (en) * | 2014-03-27 | 2017-11-29 | Hitachi Metals, Ltd. | R-t-b-based alloy powder and method for producing same, and r-t-b-based sintered magnet and method for producing same |
US9336932B1 (en) | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
JP2016076614A (ja) * | 2014-10-07 | 2016-05-12 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
CN106158213A (zh) * | 2014-12-11 | 2016-11-23 | 张乔木 | 一种高矫顽力钕铁硼永磁材料及其制备方法 |
CN106158212B (zh) * | 2014-12-11 | 2018-07-03 | 安徽省瀚海新材料股份有限公司 | 一种烧结钕铁硼永磁材料及其制备方法 |
KR101585478B1 (ko) * | 2014-12-15 | 2016-01-15 | 엘지전자 주식회사 | 자기적 특성이 향상된 MnBi를 포함한 이방성 복합 소결 자석 및 이의 제조방법 |
JP6504044B2 (ja) * | 2015-02-16 | 2019-04-24 | Tdk株式会社 | 希土類系永久磁石 |
KR101585479B1 (ko) * | 2015-04-20 | 2016-01-15 | 엘지전자 주식회사 | MnBi를 포함한 이방성 복합 소결 자석 및 이의 상압소결 방법 |
JP2018174205A (ja) * | 2017-03-31 | 2018-11-08 | 大同特殊鋼株式会社 | R−t−b系焼結磁石およびその製造方法 |
JP7315889B2 (ja) * | 2019-03-29 | 2023-07-27 | Tdk株式会社 | R-t-b系永久磁石用合金およびr-t-b系永久磁石の製造方法 |
CN113593799B (zh) * | 2020-04-30 | 2023-06-13 | 烟台正海磁性材料股份有限公司 | 一种细晶、高矫顽力烧结钕铁硼磁体及其制备方法 |
CN114496546A (zh) * | 2022-02-25 | 2022-05-13 | 安徽大地熊新材料股份有限公司 | 高机械强度烧结钕铁硼磁体及其制备方法 |
Family Cites Families (18)
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JPH0696928A (ja) | 1992-06-30 | 1994-04-08 | Aichi Steel Works Ltd | 希土類焼結磁石及びその製造方法 |
JP3549382B2 (ja) * | 1997-12-22 | 2004-08-04 | 信越化学工業株式会社 | 希土類元素・鉄・ボロン系永久磁石およびその製造方法 |
EP1033415B1 (en) * | 1998-08-28 | 2003-05-28 | Showa Denko Kabushiki Kaisha | Alloy for use in preparation of r-t-b-based sintered magnet and process for preparing r-t-b-based sintered magnet |
JP3846835B2 (ja) | 1998-10-14 | 2006-11-15 | 株式会社Neomax | R−t−b系焼結型永久磁石 |
DE69911138T2 (de) * | 1998-10-14 | 2004-07-22 | Hitachi Metals, Ltd. | Gesinterter R-T-B-Dauermagnet |
US6746545B2 (en) * | 2000-05-31 | 2004-06-08 | Shin-Etsu Chemical Co., Ltd. | Preparation of rare earth permanent magnets |
JP4818547B2 (ja) * | 2000-08-31 | 2011-11-16 | 昭和電工株式会社 | 遠心鋳造方法、遠心鋳造装置、それにより製造した合金 |
JP2002356701A (ja) * | 2001-03-30 | 2002-12-13 | Sumitomo Special Metals Co Ltd | 希土類合金焼結体およびその製造方法 |
US7201810B2 (en) * | 2001-03-30 | 2007-04-10 | Neomax Co., Ltd. | Rare earth alloy sintered compact and method of making the same |
JP3841722B2 (ja) * | 2001-05-30 | 2006-11-01 | 株式会社Neomax | 希土類磁石用焼結体の製造方法 |
US7255751B2 (en) * | 2002-09-30 | 2007-08-14 | Tdk Corporation | Method for manufacturing R-T-B system rare earth permanent magnet |
EP1632299B1 (en) * | 2003-04-22 | 2019-06-05 | Hitachi Metals, Ltd. | Method for producing rare earth based alloy powder and method for producing rare earth based sintered magnet |
US7618497B2 (en) * | 2003-06-30 | 2009-11-17 | Tdk Corporation | R-T-B based rare earth permanent magnet and method for production thereof |
JP2006186216A (ja) | 2004-12-28 | 2006-07-13 | Tdk Corp | 希土類磁石の製造方法及び希土類磁石 |
JP2006213985A (ja) * | 2005-02-07 | 2006-08-17 | Tdk Corp | 磁歪素子の製造方法 |
EP1860668B1 (en) * | 2005-03-14 | 2015-01-14 | TDK Corporation | R-t-b based sintered magnet |
JP4900085B2 (ja) | 2007-06-29 | 2012-03-21 | Tdk株式会社 | 希土類磁石の製造方法 |
JP4900113B2 (ja) * | 2007-07-24 | 2012-03-21 | Tdk株式会社 | 希土類永久焼結磁石の製造方法 |
-
2010
- 2010-01-14 WO PCT/JP2010/000178 patent/WO2010082492A1/ja active Application Filing
- 2010-01-14 EP EP10731161.5A patent/EP2388350B1/en active Active
- 2010-01-14 US US13/143,566 patent/US8287661B2/en active Active
- 2010-01-14 CN CN2010800047563A patent/CN102282279B/zh active Active
- 2010-01-14 JP JP2010546597A patent/JP5561170B2/ja active Active
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103366939A (zh) * | 2012-03-29 | 2013-10-23 | 通用电气公司 | 永磁体的制造方法 |
CN104952578A (zh) * | 2014-03-27 | 2015-09-30 | 日立金属株式会社 | R-t-b系合金粉末和r-t-b系烧结磁体 |
CN104952578B (zh) * | 2014-03-27 | 2018-09-14 | 日立金属株式会社 | R-t-b系合金粉末和r-t-b系烧结磁体 |
CN107453568A (zh) * | 2016-05-30 | 2017-12-08 | Tdk株式会社 | 电动机 |
CN106601407A (zh) * | 2017-01-23 | 2017-04-26 | 包头市神头稀土科技发展有限公司 | 提高钕铁硼磁体矫顽力的方法 |
CN106601407B (zh) * | 2017-01-23 | 2019-06-07 | 包头市神头稀土科技发展有限公司 | 提高钕铁硼磁体矫顽力的方法 |
CN108695034A (zh) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | R-t-b系烧结磁铁 |
CN108695034B (zh) * | 2017-03-30 | 2020-08-14 | Tdk株式会社 | R-t-b系烧结磁铁 |
CN112927911A (zh) * | 2019-12-06 | 2021-06-08 | 宁波科宁达工业有限公司 | 一种磁体的制备方法 |
CN112927911B (zh) * | 2019-12-06 | 2024-05-07 | 宁波科宁达工业有限公司 | 一种磁体的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2388350A1 (en) | 2011-11-23 |
US20110262297A1 (en) | 2011-10-27 |
JPWO2010082492A1 (ja) | 2012-07-05 |
CN102282279B (zh) | 2013-10-02 |
US8287661B2 (en) | 2012-10-16 |
EP2388350B1 (en) | 2018-09-19 |
JP5561170B2 (ja) | 2014-07-30 |
WO2010082492A1 (ja) | 2010-07-22 |
EP2388350A4 (en) | 2016-12-14 |
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C10 | Entry into substantive examination | ||
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C14 | Grant of patent or utility model | ||
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C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Japan Tokyo port harbor 2 chome No. 70 Patentee after: Hitachi Metals Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Metals Co., Ltd. Address after: Japan Tokyo port harbor 2 chome No. 70 Patentee after: Hitachi Metals Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Metals Co., Ltd. |
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20111214 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: Method for producing r-t-b system sintered magnet Granted publication date: 20131002 License type: Common License Record date: 20170209 Application publication date: 20111214 Assignee: Hitachi metal ring Ci material (Nantong) Co. Ltd. Assignor: Hitachi Metals Contract record no.: 2017990000034 Denomination of invention: Method for producing r-t-b system sintered magnet Granted publication date: 20131002 License type: Common License Record date: 20170209 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CI03 | Correction of invention patent | ||
CI03 | Correction of invention patent |
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 |