CN111243807B - 一种钕铁硼磁体材料、原料组合物及制备方法和应用 - Google Patents
一种钕铁硼磁体材料、原料组合物及制备方法和应用 Download PDFInfo
- Publication number
- CN111243807B CN111243807B CN202010121472.8A CN202010121472A CN111243807B CN 111243807 B CN111243807 B CN 111243807B CN 202010121472 A CN202010121472 A CN 202010121472A CN 111243807 B CN111243807 B CN 111243807B
- Authority
- CN
- China
- Prior art keywords
- mass
- magnet material
- percentage
- content
- raw material
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 228
- 239000000203 mixture Substances 0.000 title claims abstract description 195
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 178
- 239000002994 raw material Substances 0.000 title claims abstract description 150
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 121
- 238000005324 grain boundary diffusion Methods 0.000 claims abstract description 72
- 238000003723 Smelting Methods 0.000 claims abstract description 52
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 43
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 35
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 31
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 27
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 25
- 229910052737 gold Inorganic materials 0.000 claims abstract description 10
- 229910052738 indium Inorganic materials 0.000 claims abstract description 10
- 229910052745 lead Inorganic materials 0.000 claims abstract description 10
- 229910052718 tin Inorganic materials 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 127
- 239000002245 particle Substances 0.000 claims description 114
- 239000013078 crystal Substances 0.000 claims description 92
- 238000000034 method Methods 0.000 claims description 42
- 229910052771 Terbium Inorganic materials 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 238000005245 sintering Methods 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 8
- 238000010902 jet-milling Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000005496 tempering Methods 0.000 claims description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 229910017052 cobalt Inorganic materials 0.000 abstract description 6
- 239000010941 cobalt Substances 0.000 abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 11
- 150000002910 rare earth metals Chemical class 0.000 description 10
- -1 neodymium-iron-boron rare earth Chemical class 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000004453 electron probe microanalysis Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229910001279 Dy alloy Inorganic materials 0.000 description 1
- 229910001117 Tb alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical group [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 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
- H01F1/0577—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
-
- 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
-
- 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
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (98)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010121472.8A CN111243807B (zh) | 2020-02-26 | 2020-02-26 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
EP21761557.4A EP4113544A4 (en) | 2020-02-26 | 2021-02-22 | NEODYMIUM-IRON-BORONIC MAGNETIC MATERIAL, RAW MATERIAL COMPOSITION, PROCESS FOR THEIR PRODUCTION AND ITS USE |
JP2022545011A JP7342281B2 (ja) | 2020-02-26 | 2021-02-22 | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 |
PCT/CN2021/077172 WO2021169887A1 (zh) | 2020-02-26 | 2021-02-22 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
KR1020227024167A KR102631761B1 (ko) | 2020-02-26 | 2021-02-22 | 네오디뮴철붕소 자성체 재료, 원료조성물과 제조방법 및 응용 |
US17/785,041 US20230023534A1 (en) | 2020-02-26 | 2021-02-22 | Neodymium-iron-boron magnet material, raw material composition preparation method therefor and use thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010121472.8A CN111243807B (zh) | 2020-02-26 | 2020-02-26 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111243807A CN111243807A (zh) | 2020-06-05 |
CN111243807B true CN111243807B (zh) | 2021-08-27 |
Family
ID=70871497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010121472.8A Active CN111243807B (zh) | 2020-02-26 | 2020-02-26 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230023534A1 (zh) |
EP (1) | EP4113544A4 (zh) |
JP (1) | JP7342281B2 (zh) |
KR (1) | KR102631761B1 (zh) |
CN (1) | CN111243807B (zh) |
WO (1) | WO2021169887A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111243807B (zh) * | 2020-02-26 | 2021-08-27 | 厦门钨业股份有限公司 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
US20210366635A1 (en) * | 2020-05-19 | 2021-11-25 | Shin-Etsu Chemical Co., Ltd. | Rare earth sintered magnet and making method |
CN112735717B (zh) * | 2020-12-25 | 2023-08-01 | 福建省长汀金龙稀土有限公司 | 一种钕铁硼材料及其制备方法 |
CN112768168B (zh) * | 2020-12-25 | 2023-05-30 | 福建省长汀金龙稀土有限公司 | 一种钕铁硼材料及其制备方法 |
CN114196864B (zh) * | 2021-11-25 | 2022-07-22 | 江苏大学 | 一种Y-Gd基合金及包括该基合金的钕铈铁硼磁体与制备方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5466308A (en) | 1982-08-21 | 1995-11-14 | Sumitomo Special Metals Co. Ltd. | Magnetic precursor materials for making permanent magnets |
TWI364765B (en) * | 2005-03-23 | 2012-05-21 | Shinetsu Chemical Co | Rare earth permanent magnet |
JP4895027B2 (ja) | 2006-03-27 | 2012-03-14 | Tdk株式会社 | R−t−b系焼結磁石及びr−t−b系焼結磁石の製造方法 |
CN101266856A (zh) * | 2007-12-28 | 2008-09-17 | 烟台正海磁性材料有限公司 | 耐蚀性优异的高性能R-Fe-B系烧结磁体及其制造方法 |
JP5288277B2 (ja) | 2009-08-28 | 2013-09-11 | 日立金属株式会社 | R−t−b系永久磁石の製造方法 |
WO2013035628A1 (ja) * | 2011-09-09 | 2013-03-14 | 戸田工業株式会社 | R-t-b系希土類磁石粉末、r-t-b系希土類磁石粉末の製造方法、及びボンド磁石 |
JP6089535B2 (ja) * | 2011-10-28 | 2017-03-08 | Tdk株式会社 | R−t−b系焼結磁石 |
JP6037128B2 (ja) * | 2013-03-13 | 2016-11-30 | 戸田工業株式会社 | R−t−b系希土類磁石粉末、r−t−b系希土類磁石粉末の製造方法、及びボンド磁石 |
JP6303480B2 (ja) * | 2013-03-28 | 2018-04-04 | Tdk株式会社 | 希土類磁石 |
CN103258633B (zh) * | 2013-05-30 | 2015-10-28 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
JP6017673B2 (ja) * | 2013-09-13 | 2016-11-02 | 株式会社東芝 | 永久磁石、モータ、発電機、および自動車 |
CN103745823A (zh) | 2014-01-24 | 2014-04-23 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
JP6582940B2 (ja) | 2015-03-25 | 2019-10-02 | Tdk株式会社 | R−t−b系希土類焼結磁石及びその製造方法 |
CN106920669B (zh) * | 2015-12-25 | 2020-09-01 | 天津三环乐喜新材料有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
CN106158347B (zh) * | 2016-08-31 | 2017-10-17 | 烟台正海磁性材料股份有限公司 | 一种制备R‑Fe‑B类烧结磁体的方法 |
CN106328367B (zh) * | 2016-08-31 | 2017-11-24 | 烟台正海磁性材料股份有限公司 | 一种R‑Fe‑B系烧结磁体的制备方法 |
JP6743650B2 (ja) * | 2016-10-27 | 2020-08-19 | 日立金属株式会社 | R−t−b系焼結磁石の製造方法 |
WO2018143229A1 (ja) * | 2017-01-31 | 2018-08-09 | 日立金属株式会社 | R-t-b系焼結磁石の製造方法 |
JP6950595B2 (ja) * | 2018-03-12 | 2021-10-13 | Tdk株式会社 | R−t−b系永久磁石 |
CN108962524B (zh) * | 2018-06-08 | 2020-11-17 | 深圳市瑞达美磁业有限公司 | 一种烧结取向磁体渗透处理用组合物、用途及方法 |
CN108899149A (zh) * | 2018-08-29 | 2018-11-27 | 南京理工大学 | 一种重稀土Dy高效扩散制备高矫顽力钕铁硼磁体的方法 |
JP7167673B2 (ja) | 2018-12-03 | 2022-11-09 | Tdk株式会社 | R‐t‐b系永久磁石の製造方法 |
CN110571007B (zh) * | 2019-09-03 | 2021-06-11 | 厦门钨业股份有限公司 | 一种稀土永磁材料、原料组合物、制备方法、应用、电机 |
CN111243807B (zh) * | 2020-02-26 | 2021-08-27 | 厦门钨业股份有限公司 | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 |
-
2020
- 2020-02-26 CN CN202010121472.8A patent/CN111243807B/zh active Active
-
2021
- 2021-02-22 KR KR1020227024167A patent/KR102631761B1/ko active IP Right Grant
- 2021-02-22 JP JP2022545011A patent/JP7342281B2/ja active Active
- 2021-02-22 US US17/785,041 patent/US20230023534A1/en active Pending
- 2021-02-22 EP EP21761557.4A patent/EP4113544A4/en active Pending
- 2021-02-22 WO PCT/CN2021/077172 patent/WO2021169887A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
KR20220108182A (ko) | 2022-08-02 |
KR102631761B1 (ko) | 2024-01-31 |
EP4113544A4 (en) | 2023-08-16 |
US20230023534A1 (en) | 2023-01-26 |
EP4113544A1 (en) | 2023-01-04 |
JP7342281B2 (ja) | 2023-09-11 |
JP2023508229A (ja) | 2023-03-01 |
CN111243807A (zh) | 2020-06-05 |
WO2021169887A1 (zh) | 2021-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7220330B2 (ja) | R-t-b系永久磁石材料、製造方法、並びに応用 | |
CN111243807B (zh) | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 | |
CN111223624B (zh) | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 | |
CN111312461B (zh) | 一种钕铁硼磁体材料、原料组合物及制备方法和应用 | |
CN111223627B (zh) | 钕铁硼磁体材料、原料组合物、制备方法、应用 | |
CN111223625B (zh) | 钕铁硼磁体材料、原料组合物及制备方法和应用 | |
JP7266751B2 (ja) | ネオジム鉄ホウ素磁石材料、原料組成物及び製造方法、並びに応用 | |
WO2021169890A1 (zh) | 钕铁硼磁体材料、原料组合物、制备方法、应用 | |
WO2021169889A1 (zh) | 钕铁硼磁体材料、原料组合物、制备方法、应用 | |
CN111326306B (zh) | 一种r-t-b系永磁材料及其制备方法和应用 | |
WO2023083100A1 (zh) | 一种烧结钕铁硼磁体材料及其制备方法和应用 | |
WO2021169892A1 (zh) | 钕铁硼磁体材料、原料组合物、制备方法、应用 | |
CN111540557A (zh) | 一种钕铁硼磁体材料、原料组合物及制备方法、应用 | |
CN113517104B (zh) | 主辅相合金钐钴磁体材料、烧结体用材料、其制备方法和应用 | |
WO2023227042A1 (zh) | 一种R-Fe-B系永磁材料、制备方法及应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220628 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. |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
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. |