CN110957125A - 一种钕铁硼永磁材料的烧结方法、钕铁硼永磁材料 - Google Patents
一种钕铁硼永磁材料的烧结方法、钕铁硼永磁材料 Download PDFInfo
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- CN110957125A CN110957125A CN201911350700.2A CN201911350700A CN110957125A CN 110957125 A CN110957125 A CN 110957125A CN 201911350700 A CN201911350700 A CN 201911350700A CN 110957125 A CN110957125 A CN 110957125A
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- CN
- China
- Prior art keywords
- sintering
- permanent magnet
- iron boron
- neodymium iron
- sintering method
- 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
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- 238000005245 sintering Methods 0.000 title claims abstract description 91
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 59
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 42
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 13
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 19
- 238000007872 degassing Methods 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052771 Terbium Inorganic materials 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 2
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- 229910052689 Holmium Inorganic materials 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- 229910052775 Thulium Inorganic materials 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 9
- 230000005291 magnetic effect Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000009770 conventional sintering Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052756 noble gas Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
-
- 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
Landscapes
- 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)
- Powder Metallurgy (AREA)
Abstract
Description
PrNd | Gd | Dy | Tb | Al | Cu | Co | Ga | Zr | B | Fe | |
实施例1 | 29.4 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.5 | 0.1 | 0.12 | 0.96 | 余量 |
实施例2 | 29.4 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.5 | 0.1 | 0.12 | 0.96 | 余量 |
实施例3 | 26.34 | 1.0 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.90 | 余量 |
实施例4 | 26.34 | 1.0 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.90 | 余量 |
实施例5 | 29.4 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.5 | 0.1 | 0.12 | 0.96 | 余量 |
实施例6 | 26.34 | 1.0 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.90 | 余量 |
实施例7 | 26.34 | 1.0 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.90 | 余量 |
对比例1 | 29.4 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.5 | 0.1 | 0.12 | 0.96 | 余量 |
对比例2 | 26.34 | 1.0 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.90 | 余量 |
PrNd | Gd | Dy | Tb | Al | Cu | Co | Ga | Zr | B | Fe | |
实施例1 | 29.18 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.52 | 0.1 | 0.12 | 0.958 | 余量 |
实施例2 | 29.2 | 0 | 0 | 0.12 | 0.05 | 0.08 | 0.5 | 0.12 | 0.12 | 0.957 | 余量 |
实施例3 | 26.14 | 1 | 3.9 | 0 | 0.71 | 0.25 | 2.01 | 0.25 | 0.12 | 0.91 | 余量 |
实施例4 | 26.14 | 1 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.25 | 0.12 | 0.9 | 余量 |
实施例5 | 29.1 | 0 | 0 | 0.1 | 0.05 | 0.08 | 0.5 | 0.1 | 0.12 | 0.96 | 余量 |
实施例6 | 26.17 | 1 | 3.9 | 0 | 0.7 | 0.26 | 2 | 0.25 | 0.12 | 0.903 | 余量 |
实施例7 | 26.17 | 1 | 3.9 | 0 | 0.7 | 0.26 | 2 | 0.25 | 0.12 | 0.903 | 余量 |
对比例1 | 29 | 0 | 0 | 0.1 | 0.05 | 0.1 | 0.5 | 0.15 | 0.12 | 0.96 | 余量 |
对比例2 | 26 | 1 | 3.9 | 0 | 0.7 | 0.25 | 2 | 0.28 | 0.12 | 0.9 | 余量 |
Claims (10)
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CN201911350700.2A CN110957125B (zh) | 2019-12-24 | 2019-12-24 | 一种钕铁硼永磁材料的烧结方法、钕铁硼永磁材料 |
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CN201911350700.2A CN110957125B (zh) | 2019-12-24 | 2019-12-24 | 一种钕铁硼永磁材料的烧结方法、钕铁硼永磁材料 |
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CN110957125A true CN110957125A (zh) | 2020-04-03 |
CN110957125B CN110957125B (zh) | 2021-11-05 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111599563A (zh) * | 2020-05-29 | 2020-08-28 | 福建省长汀金龙稀土有限公司 | 钕铁硼永磁材料、其原料组合物、其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5482575A (en) * | 1992-12-08 | 1996-01-09 | Ugimag Sa | Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof |
JP2001049305A (ja) * | 1999-05-31 | 2001-02-20 | Sumitomo Special Metals Co Ltd | R−Fe−B系永久磁石用焼結治具の清浄方法および該清浄方法によって清浄化された焼結治具を用いたR−Fe−B系永久磁石の焼結方法 |
US20070079904A1 (en) * | 2003-08-27 | 2007-04-12 | Katsuhiko Mori | Rare earth magnet powder and method of producing the same |
CN101359529A (zh) * | 2007-07-30 | 2009-02-04 | 比亚迪股份有限公司 | 一种钕铁硼永磁体烧结前的脱气方法 |
CN104851545A (zh) * | 2015-05-21 | 2015-08-19 | 唐海峰 | 一种具有晶界扩散层的永磁材料制备方法 |
CN107000051A (zh) * | 2014-08-15 | 2017-08-01 | 城市矿业公司 | 晶粒边界工程 |
CN108122655A (zh) * | 2017-12-21 | 2018-06-05 | 宁波金轮磁材技术有限公司 | 一种烧结NdFeB磁体及其制备方法 |
-
2019
- 2019-12-24 CN CN201911350700.2A patent/CN110957125B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5482575A (en) * | 1992-12-08 | 1996-01-09 | Ugimag Sa | Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof |
JP2001049305A (ja) * | 1999-05-31 | 2001-02-20 | Sumitomo Special Metals Co Ltd | R−Fe−B系永久磁石用焼結治具の清浄方法および該清浄方法によって清浄化された焼結治具を用いたR−Fe−B系永久磁石の焼結方法 |
US20070079904A1 (en) * | 2003-08-27 | 2007-04-12 | Katsuhiko Mori | Rare earth magnet powder and method of producing the same |
CN101359529A (zh) * | 2007-07-30 | 2009-02-04 | 比亚迪股份有限公司 | 一种钕铁硼永磁体烧结前的脱气方法 |
CN107000051A (zh) * | 2014-08-15 | 2017-08-01 | 城市矿业公司 | 晶粒边界工程 |
CN104851545A (zh) * | 2015-05-21 | 2015-08-19 | 唐海峰 | 一种具有晶界扩散层的永磁材料制备方法 |
CN108122655A (zh) * | 2017-12-21 | 2018-06-05 | 宁波金轮磁材技术有限公司 | 一种烧结NdFeB磁体及其制备方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111599563A (zh) * | 2020-05-29 | 2020-08-28 | 福建省长汀金龙稀土有限公司 | 钕铁硼永磁材料、其原料组合物、其制备方法 |
CN111599563B (zh) * | 2020-05-29 | 2023-04-07 | 福建省长汀金龙稀土有限公司 | 钕铁硼永磁材料、其原料组合物、其制备方法 |
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Effective date of registration: 20220629 Address after: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee after: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. Address before: 361000 Ke Gang, Haicang District, Fujian, Xiamen Patentee before: XIAMEN TUNGSTEN Co.,Ltd. Patentee before: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. |
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Address after: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee after: Fujian Jinlong Rare Earth Co.,Ltd. Address before: 366300 new industrial zone, Changting Economic Development Zone, Longyan City, Fujian Province Patentee before: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH Co.,Ltd. |
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