EP2436016A4 - Nd-fe-b permanent magnetic material and preparation method thereof - Google Patents
Nd-fe-b permanent magnetic material and preparation method thereofInfo
- Publication number
- EP2436016A4 EP2436016A4 EP10780039A EP10780039A EP2436016A4 EP 2436016 A4 EP2436016 A4 EP 2436016A4 EP 10780039 A EP10780039 A EP 10780039A EP 10780039 A EP10780039 A EP 10780039A EP 2436016 A4 EP2436016 A4 EP 2436016A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- preparation
- magnetic material
- permanent magnetic
- permanent
- magnetic
- 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
- 239000000696 magnetic material Substances 0.000 title 1
- 238000002360 preparation method Methods 0.000 title 1
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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/087—Compacting only using high energy impulses, e.g. magnetic field impulses
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
-
- 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
- H01F1/10—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—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 non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101076492A CN101901657B (en) | 2009-05-27 | 2009-05-27 | Sintered NdFeB (neodymium iron boron) permanent magnet material and preparation method thereof |
PCT/CN2010/072854 WO2010135958A1 (en) | 2009-05-27 | 2010-05-17 | Nd-fe-b permanent magnetic material and preparation method thereof |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2436016A1 EP2436016A1 (en) | 2012-04-04 |
EP2436016A4 true EP2436016A4 (en) | 2012-10-31 |
EP2436016B1 EP2436016B1 (en) | 2017-03-29 |
Family
ID=43222156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10780039.3A Active EP2436016B1 (en) | 2009-05-27 | 2010-05-17 | Nd-fe-b permanent magnetic material and preparation method thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120058003A1 (en) |
EP (1) | EP2436016B1 (en) |
CN (1) | CN101901657B (en) |
WO (1) | WO2010135958A1 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101853723B (en) | 2009-03-31 | 2012-11-21 | 比亚迪股份有限公司 | Composite magnetic material and preparation method thereof |
CN102228760A (en) * | 2011-06-29 | 2011-11-02 | 无锡光旭新材料科技有限公司 | Permanent magnet filter stick and method for preparing permanent magnet material thereof |
CN102510176B (en) * | 2011-11-04 | 2014-11-26 | 无锡天宝电机有限公司 | Preparation method of heat-proof Nd-Fe-B permanent magnet for motor |
CN102361359B (en) * | 2011-11-04 | 2015-02-11 | 无锡天宝电机有限公司 | Corrosion-resistant neodymium iron boron permanent magnet for motor |
CN102969111B (en) * | 2012-11-30 | 2015-09-30 | 钢铁研究总院 | Low-cost high-resistivity cerium magnet and preparation method thereof |
CN102976738A (en) * | 2012-12-20 | 2013-03-20 | 南通万宝磁石制造有限公司 | Process for manufacturing permanent magnetic ferrite with high compression strength |
CN105499557A (en) * | 2016-01-28 | 2016-04-20 | 河南中硬合金有限公司 | Hard alloy large-product holding-up hammer multi-component forming agent and preparation method |
CN105957674B (en) * | 2016-05-13 | 2018-09-14 | 桂林电子科技大学 | A kind of Nd-Ce-Pr-Fe-B alloy thin band permanent-magnet materials of high-coercive force and preparation method thereof |
CN106373688B (en) * | 2016-08-31 | 2019-03-29 | 浙江东阳东磁稀土有限公司 | A method of preparing rare earth permanent-magnetic material |
RU2642508C1 (en) * | 2016-11-21 | 2018-01-25 | федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский ядерный университет "МИФИ" (НИЯУ МИФИ) | METHOD FOR PRODUCING HIGH-COERCIVITY MAGNETS FROM ALLOYS ON BASIS OF Nd-Fe-B |
CN106747392B (en) * | 2017-03-03 | 2019-12-06 | 中国地质大学(北京) | Preparation method of Ho/Co composite doped Ni-Zn ferrite ceramic |
CN107931621A (en) * | 2017-11-16 | 2018-04-20 | 浙江中杭新材料科技有限公司 | The preparation method of high temperature resistant synchronous motor magnet steel |
CN107931598A (en) * | 2017-11-16 | 2018-04-20 | 浙江中杭新材料科技有限公司 | The preparation method of hybrid exciting synchronous motor magnet steel |
RU2690867C1 (en) * | 2018-12-13 | 2019-06-06 | Акционерное общество "Научно-производственное объединение "Магнетон" | Mixture for producing thermostable magnetic alloys with rare-earth metals based on nd-fe-b system |
CN110491614B (en) * | 2019-08-21 | 2022-06-24 | 南通成泰磁材科技有限公司 | Magnetic material with high compressive strength and preparation method thereof |
CN110571008A (en) * | 2019-09-27 | 2019-12-13 | 江苏南方永磁科技有限公司 | Magnetic composite material and preparation method thereof |
CN110534281A (en) * | 2019-09-27 | 2019-12-03 | 江苏南方永磁科技有限公司 | A kind of permanent-magnet material and preparation method thereof |
CN112750586B (en) * | 2020-12-28 | 2024-03-29 | 包头稀土研究院 | Mixed rare earth sintered NdFeB permanent magnet and preparation method thereof |
CN112863844A (en) * | 2021-03-24 | 2021-05-28 | 陈凯华 | Preparation process of corrosion-resistant neodymium iron boron magnet |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002164205A (en) * | 2000-09-12 | 2002-06-07 | Hitachi Metals Ltd | Composite bonded magnet, rotating machine, and magnet roll |
JP2005159054A (en) * | 2003-11-26 | 2005-06-16 | Tdk Corp | Method of manufacturing r-t-b-based permanent magnet |
WO2009057742A1 (en) * | 2007-11-02 | 2009-05-07 | Asahi Kasei Kabushiki Kaisha | Composite magnetic material for magnet and method for manufacturing such material |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3604853B2 (en) * | 1996-03-29 | 2004-12-22 | 株式会社Neomax | Manufacturing method of anisotropic bonded magnet |
US6721144B2 (en) * | 2001-01-04 | 2004-04-13 | International Business Machines Corporation | Spin valves with co-ferrite pinning layer |
US8465453B2 (en) * | 2003-12-03 | 2013-06-18 | Mayo Foundation For Medical Education And Research | Kits, apparatus and methods for magnetically coating medical devices with living cells |
CN100356487C (en) * | 2005-06-06 | 2007-12-19 | 浙江大学 | Method for increasing sintering Nd-Fe-B coercive force by adding nano-oxide in crystal boundary phase |
-
2009
- 2009-05-27 CN CN2009101076492A patent/CN101901657B/en active Active
-
2010
- 2010-05-17 EP EP10780039.3A patent/EP2436016B1/en active Active
- 2010-05-17 US US13/319,674 patent/US20120058003A1/en not_active Abandoned
- 2010-05-17 WO PCT/CN2010/072854 patent/WO2010135958A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002164205A (en) * | 2000-09-12 | 2002-06-07 | Hitachi Metals Ltd | Composite bonded magnet, rotating machine, and magnet roll |
JP2005159054A (en) * | 2003-11-26 | 2005-06-16 | Tdk Corp | Method of manufacturing r-t-b-based permanent magnet |
WO2009057742A1 (en) * | 2007-11-02 | 2009-05-07 | Asahi Kasei Kabushiki Kaisha | Composite magnetic material for magnet and method for manufacturing such material |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010135958A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2436016B1 (en) | 2017-03-29 |
CN101901657A (en) | 2010-12-01 |
US20120058003A1 (en) | 2012-03-08 |
EP2436016A1 (en) | 2012-04-04 |
WO2010135958A1 (en) | 2010-12-02 |
CN101901657B (en) | 2012-06-20 |
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