DE112012004741T5 - Herstellungsverfahren von Seltenerdmagneten - Google Patents
Herstellungsverfahren von Seltenerdmagneten Download PDFInfo
- Publication number
- DE112012004741T5 DE112012004741T5 DE112012004741.9T DE112012004741T DE112012004741T5 DE 112012004741 T5 DE112012004741 T5 DE 112012004741T5 DE 112012004741 T DE112012004741 T DE 112012004741T DE 112012004741 T5 DE112012004741 T5 DE 112012004741T5
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- DE
- Germany
- Prior art keywords
- alloy
- rare earth
- compact
- phase
- grain boundary
- 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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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 62
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 82
- 239000000956 alloy Substances 0.000 claims abstract description 82
- 239000012071 phase Substances 0.000 claims abstract description 60
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 25
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 12
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 6
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims abstract description 5
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000013078 crystal Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 11
- 229910001279 Dy alloy Inorganic materials 0.000 claims description 8
- 229910001117 Tb alloy Inorganic materials 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims 1
- 238000000626 liquid-phase infiltration Methods 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 24
- 229910052692 Dysprosium Inorganic materials 0.000 description 14
- 230000005415 magnetization Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000000155 melt Substances 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 7
- 229910052771 Terbium Inorganic materials 0.000 description 7
- 239000012298 atmosphere Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052733 gallium Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910020598 Co Fe Inorganic materials 0.000 description 4
- 229910002519 Co-Fe Inorganic materials 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 description 4
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 4
- 229910052689 Holmium Inorganic materials 0.000 description 3
- 238000005324 grain boundary diffusion Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 229910000583 Nd alloy Inorganic materials 0.000 description 2
- RZJQYRCNDBMIAG-UHFFFAOYSA-N [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] Chemical class [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] RZJQYRCNDBMIAG-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- -1 each of Nd-Cu Chemical compound 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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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
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-248923 | 2011-11-14 | ||
| JP2011248923A JP5640954B2 (ja) | 2011-11-14 | 2011-11-14 | 希土類磁石の製造方法 |
| PCT/IB2012/002248 WO2013072728A1 (en) | 2011-11-14 | 2012-11-07 | Method of manufacturing rare-earth magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE112012004741T5 true DE112012004741T5 (de) | 2014-07-31 |
Family
ID=47222154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE112012004741.9T Withdrawn DE112012004741T5 (de) | 2011-11-14 | 2012-11-07 | Herstellungsverfahren von Seltenerdmagneten |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20140308441A1 (https=) |
| JP (1) | JP5640954B2 (https=) |
| KR (1) | KR101548274B1 (https=) |
| CN (1) | CN103946931A (https=) |
| DE (1) | DE112012004741T5 (https=) |
| WO (1) | WO2013072728A1 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101542539B1 (ko) | 2011-11-14 | 2015-08-06 | 도요타 지도샤（주） | 희토류 자석과 그 제조 방법 |
| JP5790617B2 (ja) | 2012-10-18 | 2015-10-07 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| CN109300640B (zh) | 2013-06-05 | 2021-03-09 | 丰田自动车株式会社 | 稀土磁体及其制造方法 |
| JP5915637B2 (ja) * | 2013-12-19 | 2016-05-11 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| JP5924335B2 (ja) | 2013-12-26 | 2016-05-25 | トヨタ自動車株式会社 | 希土類磁石とその製造方法 |
| JP5983598B2 (ja) | 2013-12-27 | 2016-08-31 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| JP6003920B2 (ja) * | 2014-02-12 | 2016-10-05 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| JP5884957B1 (ja) * | 2014-04-25 | 2016-03-15 | 日立金属株式会社 | Ｒ−ｔ−ｂ系焼結磁石の製造方法 |
| CN107077935A (zh) * | 2014-12-08 | 2017-08-18 | Lg电子株式会社 | 包含非磁性合金的热压变形的磁体及其制造方法 |
| DE102015015930A1 (de) * | 2015-12-09 | 2017-06-14 | Wolfgang Kochanek | Verfahren zur Herstellung magnetischer Werkstoffe |
| JP6717231B2 (ja) * | 2017-02-28 | 2020-07-01 | 日立金属株式会社 | Ｒ−ｔ−ｂ系焼結磁石の製造方法 |
| JP6717230B2 (ja) * | 2017-02-28 | 2020-07-01 | 日立金属株式会社 | Ｒ−ｔ−ｂ系焼結磁石の製造方法 |
| DE102018105250A1 (de) * | 2018-03-07 | 2019-09-12 | Technische Universität Darmstadt | Verfahren zur Herstellung eines Permanentmagnets oder eines hartmagnetischen Materials |
| KR102561239B1 (ko) * | 2018-11-27 | 2023-07-31 | 엘지이노텍 주식회사 | 희토류 자석 제조방법 |
| JP7216957B2 (ja) * | 2019-02-14 | 2023-02-02 | 大同特殊鋼株式会社 | 希土類磁石の製造方法 |
| JP2021082622A (ja) * | 2019-11-14 | 2021-05-27 | 大同特殊鋼株式会社 | 希土類磁石および希土類磁石の製造方法 |
| CN113871122B (zh) * | 2021-09-24 | 2024-11-15 | 烟台东星磁性材料股份有限公司 | 低重稀土磁体及制造方法 |
| CN113871121B (zh) * | 2021-09-24 | 2024-12-03 | 烟台东星磁性材料股份有限公司 | 耐高温磁体及其制造方法 |
| CN121241411A (zh) * | 2023-06-05 | 2025-12-30 | Lg 伊诺特有限公司 | 永磁体 |
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| US4792367A (en) * | 1983-08-04 | 1988-12-20 | General Motors Corporation | Iron-rare earth-boron permanent |
| JP3135120B2 (ja) * | 1989-02-09 | 2001-02-13 | 日立金属株式会社 | 温間加工磁石の製造方法 |
| JP3405806B2 (ja) * | 1994-04-05 | 2003-05-12 | ティーディーケイ株式会社 | 磁石およびその製造方法 |
| JPH08250356A (ja) * | 1995-03-13 | 1996-09-27 | Daido Steel Co Ltd | 異方性磁石用合金粉末、これを用いた異方性永久磁石とその製造方法 |
| JP3540438B2 (ja) * | 1995-05-16 | 2004-07-07 | Ｔｄｋ株式会社 | 磁石およびその製造方法 |
| JPH09275004A (ja) * | 1995-07-07 | 1997-10-21 | Daido Steel Co Ltd | 永久磁石とその製造方法 |
| JP3897724B2 (ja) * | 2003-03-31 | 2007-03-28 | 独立行政法人科学技術振興機構 | 超小型製品用の微小、高性能焼結希土類磁石の製造方法 |
| JP4433282B2 (ja) * | 2004-01-23 | 2010-03-17 | Ｔｄｋ株式会社 | 希土類磁石の製造方法及び製造装置 |
| CN100433204C (zh) * | 2004-07-28 | 2008-11-12 | 株式会社日立制作所 | 稀土类磁铁 |
| JP4654709B2 (ja) * | 2004-07-28 | 2011-03-23 | 株式会社日立製作所 | 希土類磁石 |
| EP1879201B1 (en) * | 2005-04-15 | 2016-11-30 | Hitachi Metals, Ltd. | Rare earth sintered magnet and process for producing the same |
| JP4656323B2 (ja) * | 2006-04-14 | 2011-03-23 | 信越化学工業株式会社 | 希土類永久磁石材料の製造方法 |
| JP2010263172A (ja) * | 2008-07-04 | 2010-11-18 | Daido Steel Co Ltd | 希土類磁石およびその製造方法 |
| JP2010114200A (ja) * | 2008-11-05 | 2010-05-20 | Daido Steel Co Ltd | 希土類磁石の製造方法 |
| JP5057111B2 (ja) * | 2009-07-01 | 2012-10-24 | 信越化学工業株式会社 | 希土類磁石の製造方法 |
| JP2011035001A (ja) | 2009-07-29 | 2011-02-17 | Ulvac Japan Ltd | 永久磁石の製造方法 |
| JP5515539B2 (ja) * | 2009-09-09 | 2014-06-11 | 日産自動車株式会社 | 磁石成形体およびその製造方法 |
| JP2011159733A (ja) * | 2010-01-29 | 2011-08-18 | Toyota Motor Corp | ナノコンポジット磁石の製造方法 |
| CA2811451C (en) * | 2010-09-15 | 2016-11-01 | Toyota Jidosha Kabushiki Kaisha | Production method of rare earth magnet |
-
2011
- 2011-11-14 JP JP2011248923A patent/JP5640954B2/ja not_active Expired - Fee Related
-
2012
- 2012-11-07 KR KR1020147012659A patent/KR101548274B1/ko not_active Expired - Fee Related
- 2012-11-07 DE DE112012004741.9T patent/DE112012004741T5/de not_active Withdrawn
- 2012-11-07 US US14/355,389 patent/US20140308441A1/en not_active Abandoned
- 2012-11-07 CN CN201280055397.3A patent/CN103946931A/zh active Pending
- 2012-11-07 WO PCT/IB2012/002248 patent/WO2013072728A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN103946931A (zh) | 2014-07-23 |
| KR20140089544A (ko) | 2014-07-15 |
| WO2013072728A1 (en) | 2013-05-23 |
| US20140308441A1 (en) | 2014-10-16 |
| JP5640954B2 (ja) | 2014-12-17 |
| WO2013072728A8 (en) | 2013-07-25 |
| KR101548274B1 (ko) | 2015-08-28 |
| JP2013105903A (ja) | 2013-05-30 |
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