KR20140082741A - 희토류 영구 자석 및 희토류 영구 자석의 제조 방법 - Google Patents
희토류 영구 자석 및 희토류 영구 자석의 제조 방법 Download PDFInfo
- Publication number
- KR20140082741A KR20140082741A KR1020147011139A KR20147011139A KR20140082741A KR 20140082741 A KR20140082741 A KR 20140082741A KR 1020147011139 A KR1020147011139 A KR 1020147011139A KR 20147011139 A KR20147011139 A KR 20147011139A KR 20140082741 A KR20140082741 A KR 20140082741A
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- KR
- South Korea
- Prior art keywords
- magnet
- permanent magnet
- sintering
- earth permanent
- binder resin
- 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 42
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
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- 150000002902 organometallic compounds Chemical class 0.000 claims abstract description 65
- 239000002245 particle Substances 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000010298 pulverizing process Methods 0.000 claims abstract description 37
- 239000003960 organic solvent Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 31
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 26
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 24
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 24
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 23
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 23
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 21
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 20
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- 239000010955 niobium Substances 0.000 description 38
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- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- DINQVNXOZUORJS-UHFFFAOYSA-N butan-1-olate;niobium(5+) Chemical compound [Nb+5].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] DINQVNXOZUORJS-UHFFFAOYSA-N 0.000 description 3
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- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical compound CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 description 1
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- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
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- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 238000005261 decarburization Methods 0.000 description 1
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- 229910001873 dinitrogen Inorganic materials 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HHFAWKCIHAUFRX-UHFFFAOYSA-N ethoxide Chemical compound CC[O-] HHFAWKCIHAUFRX-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- IKNCGYCHMGNBCP-UHFFFAOYSA-N propan-1-olate Chemical compound CCC[O-] IKNCGYCHMGNBCP-UHFFFAOYSA-N 0.000 description 1
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 description 1
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- 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
- H01F1/0536—Alloys characterised by their composition containing rare earth metals 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
-
- 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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- 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
- H01F1/0572—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 with a protective layer
-
- 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
- H01F41/0266—Moulding; Pressing
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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
- 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
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011218589A JP5908246B2 (ja) | 2011-09-30 | 2011-09-30 | 希土類永久磁石の製造方法 |
| JPJP-P-2011-218589 | 2011-09-30 | ||
| PCT/JP2012/074471 WO2013047467A1 (ja) | 2011-09-30 | 2012-09-25 | 希土類永久磁石及び希土類永久磁石の製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20140082741A true KR20140082741A (ko) | 2014-07-02 |
Family
ID=47995499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020147011139A Withdrawn KR20140082741A (ko) | 2011-09-30 | 2012-09-25 | 희토류 영구 자석 및 희토류 영구 자석의 제조 방법 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20140241929A1 (https=) |
| EP (1) | EP2763147A4 (https=) |
| JP (1) | JP5908246B2 (https=) |
| KR (1) | KR20140082741A (https=) |
| CN (1) | CN103843081A (https=) |
| IN (1) | IN2014CN01766A (https=) |
| TW (1) | TW201330022A (https=) |
| WO (1) | WO2013047467A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020045865A1 (ko) * | 2018-08-31 | 2020-03-05 | 주식회사 엘지화학 | 자석 분말의 제조 방법 및 자석 분말 |
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| WO2015121913A1 (ja) * | 2014-02-12 | 2015-08-20 | 日東電工株式会社 | 希土類永久磁石及び希土類永久磁石の製造方法 |
| JP6511779B2 (ja) * | 2014-11-12 | 2019-05-15 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| CN104599833B (zh) * | 2015-01-16 | 2017-07-04 | 浙江和也健康科技有限公司 | 一种高韧性的稀土柔性磁条及其生产方法 |
| WO2016175332A1 (ja) * | 2015-04-30 | 2016-11-03 | 株式会社Ihi | 希土類永久磁石および希土類永久磁石の製造方法 |
| FR3069096B1 (fr) * | 2017-07-12 | 2020-12-25 | Commissariat Energie Atomique | Procede de fabrication d'un aimant permanent |
| CN110534331A (zh) * | 2019-09-23 | 2019-12-03 | 广西科技大学 | 一种高磁能积、高矫顽力烧结钕铁硼磁体的制备方法 |
| CN111331129A (zh) * | 2020-04-26 | 2020-06-26 | 杭州屹通新材料股份有限公司 | 一种低松装密度CuSn10粉的制备方法 |
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| US4996022A (en) * | 1989-07-14 | 1991-02-26 | Juki Corporation | Process for producing a sintered body |
| JPH05320708A (ja) * | 1992-01-10 | 1993-12-03 | Kawasaki Steel Corp | 焼結性粉末射出成形用バインダおよび組成物 |
| JPH0669009A (ja) * | 1992-08-19 | 1994-03-11 | Matsushita Electric Ind Co Ltd | 希土類−鉄系磁石の製造方法 |
| JP3298219B2 (ja) | 1993-03-17 | 2002-07-02 | 日立金属株式会社 | 希土類―Ｆｅ−Ｃｏ−Ａｌ−Ｖ−Ｇａ−Ｂ系焼結磁石 |
| JP4448987B2 (ja) * | 2000-06-09 | 2010-04-14 | 川研ファインケミカル株式会社 | ビスマスアルコキシドの製造方法 |
| JP2002363607A (ja) * | 2001-06-13 | 2002-12-18 | Sumitomo Metal Mining Co Ltd | 希土類系磁性粉末、その製造方法及びこれを用いた磁石 |
| JP2004031781A (ja) * | 2002-06-27 | 2004-01-29 | Nissan Motor Co Ltd | 希土類磁石およびその製造方法、ならびに希土類磁石を用いてなるモータ |
| JP4525072B2 (ja) * | 2003-12-22 | 2010-08-18 | 日産自動車株式会社 | 希土類磁石およびその製造方法 |
| JP2005191187A (ja) * | 2003-12-25 | 2005-07-14 | Nissan Motor Co Ltd | 希土類磁石およびその製造方法 |
| JP2005197299A (ja) * | 2003-12-26 | 2005-07-21 | Tdk Corp | 希土類焼結磁石及びその製造方法 |
| JP4635832B2 (ja) * | 2005-11-08 | 2011-02-23 | 日立金属株式会社 | 希土類焼結磁石の製造方法 |
| CN101031984B (zh) * | 2005-07-15 | 2011-12-21 | 日立金属株式会社 | 稀土类烧结磁体及其制造方法 |
| US7569254B2 (en) * | 2005-08-22 | 2009-08-04 | Eastman Kodak Company | Nanocomposite materials comprising high loadings of filler materials and an in-situ method of making such materials |
| WO2008120784A1 (ja) * | 2007-03-30 | 2008-10-09 | Tdk Corporation | 磁石の製造方法 |
| JP5320708B2 (ja) * | 2007-09-06 | 2013-10-23 | セイコーエプソン株式会社 | 文書管理装置、文書管理方法及び文書管理プログラム |
| JP5266522B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP5261747B2 (ja) * | 2008-04-15 | 2013-08-14 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP5266523B2 (ja) * | 2008-04-15 | 2013-08-21 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP4923153B2 (ja) * | 2010-03-31 | 2012-04-25 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
| JP4923152B2 (ja) * | 2010-03-31 | 2012-04-25 | 日東電工株式会社 | 永久磁石及び永久磁石の製造方法 |
-
2011
- 2011-09-30 JP JP2011218589A patent/JP5908246B2/ja not_active Expired - Fee Related
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2012
- 2012-09-25 EP EP12836769.5A patent/EP2763147A4/en not_active Withdrawn
- 2012-09-25 KR KR1020147011139A patent/KR20140082741A/ko not_active Withdrawn
- 2012-09-25 WO PCT/JP2012/074471 patent/WO2013047467A1/ja not_active Ceased
- 2012-09-25 US US14/241,511 patent/US20140241929A1/en not_active Abandoned
- 2012-09-25 CN CN201280047635.6A patent/CN103843081A/zh active Pending
- 2012-09-25 IN IN1766CHN2014 patent/IN2014CN01766A/en unknown
- 2012-09-28 TW TW101136037A patent/TW201330022A/zh unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020045865A1 (ko) * | 2018-08-31 | 2020-03-05 | 주식회사 엘지화학 | 자석 분말의 제조 방법 및 자석 분말 |
| US11365464B2 (en) | 2018-08-31 | 2022-06-21 | Lg Chem, Ltd. | Method for preparing magnetic powder and magnetic material |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201330022A (zh) | 2013-07-16 |
| CN103843081A (zh) | 2014-06-04 |
| WO2013047467A1 (ja) | 2013-04-04 |
| JP2013080738A (ja) | 2013-05-02 |
| IN2014CN01766A (https=) | 2015-05-29 |
| JP5908246B2 (ja) | 2016-04-26 |
| EP2763147A1 (en) | 2014-08-06 |
| EP2763147A4 (en) | 2015-10-14 |
| US20140241929A1 (en) | 2014-08-28 |
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