CN111128541B - Microwave sintering method of neodymium iron boron magnet - Google Patents
Microwave sintering method of neodymium iron boron magnet Download PDFInfo
- Publication number
- CN111128541B CN111128541B CN201911375578.4A CN201911375578A CN111128541B CN 111128541 B CN111128541 B CN 111128541B CN 201911375578 A CN201911375578 A CN 201911375578A CN 111128541 B CN111128541 B CN 111128541B
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- CN
- China
- Prior art keywords
- iron boron
- neodymium iron
- microwave
- magnet
- boron magnet
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- 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.)
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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
- H01F41/0293—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
- 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
- H01F41/0273—Imparting anisotropy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Diffusion treatment time (h) | Remanence (kGS) | Coercive force (KOe) | Magnetic energy product (BH)max/MGOe) | |
Example 1 | 1.5 | 14.68 | 19.35 | 49.11 |
Example 2 | 1.5 | 14.62 | 19.24 | 48.97 |
Example 3 | 2.2 | 14.39 | 18.97 | 47.84 |
Example 4 | 3.0 | 14.18 | 18.62 | 48.65 |
Conventional methods | 5-7 | 12.87 | 13.49 | 42.58 |
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911375578.4A CN111128541B (en) | 2019-12-27 | 2019-12-27 | Microwave sintering method of neodymium iron boron magnet |
Applications Claiming Priority (1)
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CN201911375578.4A CN111128541B (en) | 2019-12-27 | 2019-12-27 | Microwave sintering method of neodymium iron boron magnet |
Publications (2)
Publication Number | Publication Date |
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CN111128541A CN111128541A (en) | 2020-05-08 |
CN111128541B true CN111128541B (en) | 2022-01-04 |
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CN201911375578.4A Active CN111128541B (en) | 2019-12-27 | 2019-12-27 | Microwave sintering method of neodymium iron boron magnet |
Country Status (1)
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CN (1) | CN111128541B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105845301A (en) * | 2015-08-13 | 2016-08-10 | 北京中科三环高技术股份有限公司 | Rare earth permanent magnet and preparation method of rare earth permanent magnet |
CN107555980A (en) * | 2017-07-31 | 2018-01-09 | 浙江凯文磁钢有限公司 | A kind of method for manufacturing flake crystalline rare earth permanent ferrite material |
CN108281270A (en) * | 2018-01-05 | 2018-07-13 | 宁波招宝磁业有限公司 | The method that metal vapors heat treatment prepares high-performance neodymium-iron-boron magnet |
CN109360728A (en) * | 2018-07-18 | 2019-02-19 | 浙江中科磁业有限公司 | A kind of evaporation grain boundary decision enhancing coercitive method of neodymium iron boron magnetic body |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130266473A1 (en) * | 2012-04-05 | 2013-10-10 | GM Global Technology Operations LLC | Method of Producing Sintered Magnets with Controlled Structures and Composition Distribution |
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2019
- 2019-12-27 CN CN201911375578.4A patent/CN111128541B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105845301A (en) * | 2015-08-13 | 2016-08-10 | 北京中科三环高技术股份有限公司 | Rare earth permanent magnet and preparation method of rare earth permanent magnet |
CN107555980A (en) * | 2017-07-31 | 2018-01-09 | 浙江凯文磁钢有限公司 | A kind of method for manufacturing flake crystalline rare earth permanent ferrite material |
CN108281270A (en) * | 2018-01-05 | 2018-07-13 | 宁波招宝磁业有限公司 | The method that metal vapors heat treatment prepares high-performance neodymium-iron-boron magnet |
CN109360728A (en) * | 2018-07-18 | 2019-02-19 | 浙江中科磁业有限公司 | A kind of evaporation grain boundary decision enhancing coercitive method of neodymium iron boron magnetic body |
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Publication number | Publication date |
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CN111128541A (en) | 2020-05-08 |
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Effective date of registration: 20211208 Address after: No.98 Daling Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region Applicant after: GUANGXI ACADEMY OF SCIENCES Applicant after: Guangxi Zhongke microwave Advanced Manufacturing Technology Research Institute Applicant after: Nanning Zhongke microwave advanced manufacturing industry technology Research Institute Address before: No.98 Daling Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region Applicant before: GUANGXI ACADEMY OF SCIENCES |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CI03 | Correction of invention patent | ||
CI03 | Correction of invention patent |
Correction item: Applicant|Address|Applicant Correct: Guangxi Academy of Sciences|No.98 Daling Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region|Guangxi Zhongke microwave advanced manufacturing industry technology research institute|Nanning Zhongke microwave advanced manufacturing industry technology research institute False: Guangxi Academy of Sciences|No.98 Daling Road, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region|Guangxi Zhongke microwave Advanced Manufacturing Technology Research Institute|Nanning Zhongke microwave advanced manufacturing industry technology research institute Number: 52-01 Volume: 37 |