CN108987016B - 一种纳米晶钕铁硼磁体的制备工艺 - Google Patents
一种纳米晶钕铁硼磁体的制备工艺 Download PDFInfo
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- CN108987016B CN108987016B CN201810771587.4A CN201810771587A CN108987016B CN 108987016 B CN108987016 B CN 108987016B CN 201810771587 A CN201810771587 A CN 201810771587A CN 108987016 B CN108987016 B CN 108987016B
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- iron
- rare earth
- magnet
- neodymium
- boron magnet
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- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 55
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 33
- 239000000654 additive Substances 0.000 claims abstract description 27
- 230000000996 additive effect Effects 0.000 claims abstract description 27
- 238000007731 hot pressing Methods 0.000 claims abstract description 19
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 19
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 18
- 238000003723 Smelting Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 8
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 64
- 229910052786 argon Inorganic materials 0.000 claims description 32
- 239000010949 copper Substances 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 238000002844 melting Methods 0.000 claims description 23
- 230000008018 melting Effects 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 13
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 12
- 239000010453 quartz Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052779 Neodymium Inorganic materials 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052771 Terbium Inorganic materials 0.000 claims description 4
- 229910052733 gallium Inorganic materials 0.000 claims description 4
- 238000002074 melt spinning Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 20
- 238000009792 diffusion process Methods 0.000 abstract description 10
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 150000002910 rare earth metals Chemical class 0.000 description 12
- 239000006247 magnetic powder Substances 0.000 description 11
- 238000005324 grain boundary diffusion Methods 0.000 description 10
- 230000005347 demagnetization Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 229910011208 Ti—N Inorganic materials 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- -1 2013 Chemical class 0.000 description 1
- 229910000636 Ce alloy Inorganic materials 0.000 description 1
- 229910000858 La alloy Inorganic materials 0.000 description 1
- 229910017414 LaAl Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910018484 Ni—Cu—Ni Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
- H01F1/0576—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 pressed, e.g. hot working
-
- 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
- H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
- H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Nanotechnology (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
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CN201810771587.4A CN108987016B (zh) | 2018-07-13 | 2018-07-13 | 一种纳米晶钕铁硼磁体的制备工艺 |
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CN201810771587.4A CN108987016B (zh) | 2018-07-13 | 2018-07-13 | 一种纳米晶钕铁硼磁体的制备工艺 |
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CN108987016A CN108987016A (zh) | 2018-12-11 |
CN108987016B true CN108987016B (zh) | 2021-06-18 |
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Families Citing this family (4)
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CN109994310A (zh) * | 2019-04-22 | 2019-07-09 | 宁德市星宇科技有限公司 | 一种热压热变形磁体的制备方法 |
JP7252105B2 (ja) * | 2019-09-10 | 2023-04-04 | トヨタ自動車株式会社 | 希土類磁石及びその製造方法 |
CN110890190A (zh) * | 2019-11-06 | 2020-03-17 | 有研稀土新材料股份有限公司 | 一种异方性粘结磁粉及其制备方法 |
CN115206665B (zh) * | 2022-09-14 | 2022-12-09 | 宁波科宁达工业有限公司 | 钕铁硼永磁体及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012234971A (ja) * | 2011-05-02 | 2012-11-29 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法 |
CN104388951A (zh) * | 2014-11-24 | 2015-03-04 | 上海交通大学 | 一种提高烧结钕铁硼磁性能的晶界扩散方法 |
CN107958760A (zh) * | 2016-10-17 | 2018-04-24 | 中国科学院宁波材料技术与工程研究所 | 一种稀土永磁材料及其制备方法 |
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CN102496437B (zh) * | 2011-11-17 | 2014-07-09 | 中国科学院宁波材料技术与工程研究所 | 各向异性纳米晶复相致密化块体钕铁硼永磁材料的制备方法 |
CN105321646A (zh) * | 2015-11-25 | 2016-02-10 | 中国科学院宁波材料技术与工程研究所 | 高矫顽力纳米晶热变形稀土永磁体及其制备方法 |
CN106409497B (zh) * | 2016-08-31 | 2018-06-08 | 浙江东阳东磁稀土有限公司 | 一种钕铁硼磁体晶界扩散的方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012234971A (ja) * | 2011-05-02 | 2012-11-29 | Hitachi Metals Ltd | R−t−b系焼結磁石の製造方法 |
CN104388951A (zh) * | 2014-11-24 | 2015-03-04 | 上海交通大学 | 一种提高烧结钕铁硼磁性能的晶界扩散方法 |
CN107958760A (zh) * | 2016-10-17 | 2018-04-24 | 中国科学院宁波材料技术与工程研究所 | 一种稀土永磁材料及其制备方法 |
Non-Patent Citations (1)
Title |
---|
Overview of the Ways for Enhancing the Coercivity of Hot-Deformed Nd2Fe14B-Type Magnets;Y. I. Lee,et al;《IEEE TRANSACTIONS ON MAGNETICS》;20180630;第54卷(第6期);2100605 * |
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Denomination of invention: Preparation process of a nanocrystalline neodymium iron boron magnet Effective date of registration: 20231016 Granted publication date: 20210618 Pledgee: Bank of Nanjing Co.,Ltd. Changzhou Branch Pledgor: Jiangsu runlian Renewable Resources Technology Co.,Ltd. Registration number: Y2023980061218 |
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