CN111739704B - R－t－b系烧结磁体 - Google Patents
R－t－b系烧结磁体 Download PDFInfo
- Publication number
- CN111739704B CN111739704B CN202010199666.XA CN202010199666A CN111739704B CN 111739704 B CN111739704 B CN 111739704B CN 202010199666 A CN202010199666 A CN 202010199666A CN 111739704 B CN111739704 B CN 111739704B
- Authority
- CN
- China
- Prior art keywords
- magnet
- sintered magnet
- alloy
- content
- oxygen
- 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.)
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- 230000004907 flux Effects 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 42
- 239000001301 oxygen Substances 0.000 claims description 42
- 229910052760 oxygen Inorganic materials 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 20
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 16
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 14
- 230000003247 decreasing effect Effects 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 8
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 54
- 229910000807 Ga alloy Inorganic materials 0.000 description 45
- 238000010438 heat treatment Methods 0.000 description 27
- 239000012071 phase Substances 0.000 description 27
- 229910052733 gallium Inorganic materials 0.000 description 23
- 238000009792 diffusion process Methods 0.000 description 19
- 239000000203 mixture Substances 0.000 description 18
- 229910052771 Terbium Inorganic materials 0.000 description 16
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- 239000002994 raw material Substances 0.000 description 14
- 230000007423 decrease Effects 0.000 description 12
- 230000005291 magnetic effect Effects 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 6
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000000700 radioactive tracer Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000002612 dispersion medium Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011802 pulverized particle Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910016468 DyF3 Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- -1 block Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- NLQFUUYNQFMIJW-UHFFFAOYSA-N dysprosium(III) oxide Inorganic materials O=[Dy]O[Dy]=O NLQFUUYNQFMIJW-UHFFFAOYSA-N 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 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
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-056142 | 2019-03-25 | ||
| JP2019056142 | 2019-03-25 | ||
| JP2019176506A JP7059995B2 (ja) | 2019-03-25 | 2019-09-27 | Ｒ－ｔ－ｂ系焼結磁石 |
| JP2019-176506 | 2019-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111739704A CN111739704A (zh) | 2020-10-02 |
| CN111739704B true CN111739704B (zh) | 2025-04-25 |
Family
ID=72639909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010199666.XA Active CN111739704B (zh) | 2019-03-25 | 2020-03-20 | R－t－b系烧结磁体 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7059995B2 (enExample) |
| CN (1) | CN111739704B (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY206732A (en) * | 2020-11-12 | 2025-01-03 | Shinetsu Chemical Co | Method for manufacturing rare earth sintered magnet |
| JP2023139365A (ja) * | 2022-03-22 | 2023-10-04 | 株式会社プロテリアル | Ｒ－ｔ－ｂ系焼結磁石 |
| JP7248169B1 (ja) | 2022-03-22 | 2023-03-29 | 株式会社プロテリアル | Ｒ－ｔ－ｂ系焼結磁石 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104737244A (zh) * | 2012-10-23 | 2015-06-24 | 丰田自动车株式会社 | 稀土类烧结磁铁及其制造方法 |
| CN107077965A (zh) * | 2015-07-30 | 2017-08-18 | 日立金属株式会社 | R‑t‑b系烧结磁体的制造方法 |
| CN108154988A (zh) * | 2016-12-06 | 2018-06-12 | Tdk株式会社 | R-t-b系永久磁铁 |
| WO2018143230A1 (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 |
| CN109478452A (zh) * | 2016-08-17 | 2019-03-15 | 日立金属株式会社 | R－t－b系烧结磁体 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4753024B2 (ja) * | 2005-03-24 | 2011-08-17 | Ｔｄｋ株式会社 | Ｒ−ｔ−ｂ系焼結磁石用原料合金、ｒ−ｔ−ｂ系焼結磁石及びその製造方法 |
| CN104221100B (zh) * | 2012-03-30 | 2018-03-16 | 因太金属株式会社 | NdFeB系烧结磁体 |
| JP5970548B2 (ja) * | 2012-06-13 | 2016-08-17 | 株式会社日立製作所 | 焼結磁石及びその製造方法 |
| JP5464289B1 (ja) * | 2013-04-22 | 2014-04-09 | Ｔｄｋ株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| ES2717445T3 (es) * | 2013-08-12 | 2019-06-21 | Hitachi Metals Ltd | Imán sinterizado R-T-B y método para producir un imán sinterizado R-T-B |
| JP6414598B2 (ja) * | 2014-09-11 | 2018-10-31 | 日立金属株式会社 | Ｒ−ｔ−ｂ系焼結磁石の製造方法 |
| WO2016133067A1 (ja) * | 2015-02-17 | 2016-08-25 | 日立金属株式会社 | Ｒ－ｔ－ｂ系焼結磁石の製造方法 |
| JP7251917B2 (ja) * | 2016-12-06 | 2023-04-04 | Tdk株式会社 | Ｒ－ｔ－ｂ系永久磁石 |
-
2019
- 2019-09-27 JP JP2019176506A patent/JP7059995B2/ja active Active
-
2020
- 2020-03-20 CN CN202010199666.XA patent/CN111739704B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104737244A (zh) * | 2012-10-23 | 2015-06-24 | 丰田自动车株式会社 | 稀土类烧结磁铁及其制造方法 |
| CN107077965A (zh) * | 2015-07-30 | 2017-08-18 | 日立金属株式会社 | R‑t‑b系烧结磁体的制造方法 |
| CN109478452A (zh) * | 2016-08-17 | 2019-03-15 | 日立金属株式会社 | R－t－b系烧结磁体 |
| CN108154988A (zh) * | 2016-12-06 | 2018-06-12 | Tdk株式会社 | R-t-b系永久磁铁 |
| WO2018143230A1 (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7059995B2 (ja) | 2022-04-26 |
| JP2020161789A (ja) | 2020-10-01 |
| CN111739704A (zh) | 2020-10-02 |
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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 | ||
| CB02 | Change of applicant information |
Address after: Tokyo, Japan Applicant after: Bomeilicheng Co.,Ltd. Address before: Tokyo, Japan Applicant before: HITACHI METALS, Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |