TWI466141B - Manufacture of rare earth magnets - Google Patents
Manufacture of rare earth magnets Download PDFInfo
- Publication number
- TWI466141B TWI466141B TW102138082A TW102138082A TWI466141B TW I466141 B TWI466141 B TW I466141B TW 102138082 A TW102138082 A TW 102138082A TW 102138082 A TW102138082 A TW 102138082A TW I466141 B TWI466141 B TW I466141B
- Authority
- TW
- Taiwan
- Prior art keywords
- rare earth
- earth magnet
- processing
- elongation
- upsetting
- Prior art date
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 183
- 150000002910 rare earth metals Chemical class 0.000 title claims description 180
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 238000012545 processing Methods 0.000 claims description 134
- 238000000034 method Methods 0.000 claims description 102
- 230000005415 magnetization Effects 0.000 claims description 82
- 230000008569 process Effects 0.000 claims description 77
- 229920001169 thermoplastic Polymers 0.000 claims description 28
- 239000004416 thermosoftening plastic Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 229910052779 Neodymium Inorganic materials 0.000 claims description 6
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 6
- 239000000543 intermediate Substances 0.000 description 65
- 238000012360 testing method Methods 0.000 description 21
- 239000013078 crystal Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 13
- 239000002775 capsule Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000003672 processing method Methods 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000006247 magnetic powder Substances 0.000 description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 239000002159 nanocrystal Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- -1 Nd-Co-Fe-Ga Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- H01F41/0266—Moulding; Pressing
-
- 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
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
-
- 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
-
- 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
- H01F1/0576—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 pressed, e.g. hot working
-
- 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
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
- B22F2003/208—Warm or hot extruding
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
-
- 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
- H01F41/0273—Imparting anisotropy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012233812 | 2012-10-23 | ||
| JP2013212883A JP6044504B2 (ja) | 2012-10-23 | 2013-10-10 | 希土類磁石の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201430873A TW201430873A (zh) | 2014-08-01 |
| TWI466141B true TWI466141B (zh) | 2014-12-21 |
Family
ID=50544568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102138082A TWI466141B (zh) | 2012-10-23 | 2013-10-22 | Manufacture of rare earth magnets |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US9905362B2 (enExample) |
| EP (1) | EP2913831B1 (enExample) |
| JP (1) | JP6044504B2 (enExample) |
| KR (1) | KR101632853B1 (enExample) |
| CN (1) | CN104737251B (enExample) |
| BR (1) | BR112015008267B1 (enExample) |
| CA (1) | CA2887984C (enExample) |
| IN (1) | IN2015DN03164A (enExample) |
| RU (1) | RU2595073C1 (enExample) |
| TW (1) | TWI466141B (enExample) |
| WO (1) | WO2014065188A1 (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150033423A (ko) * | 2013-09-24 | 2015-04-01 | 엘지전자 주식회사 | 열간가압성형 공정을 이용한 이방성 열간가압성형 자석의 제조방법 및 이 방법으로 제조된 열간가압성형 자석 |
| JP6168090B2 (ja) | 2014-08-28 | 2017-07-26 | トヨタ自動車株式会社 | 成形型 |
| CN104575906B (zh) * | 2014-12-11 | 2017-05-24 | 赣州市东磁稀土有限公司 | 一种高性能低成本稀土永磁材料及其制备方法 |
| JP6689571B2 (ja) | 2015-03-05 | 2020-04-28 | 信越化学工業株式会社 | 希土類焼結磁石の製造方法 |
| CN104733148B (zh) * | 2015-03-31 | 2017-06-16 | 安徽省瀚海新材料股份有限公司 | 一种高性能Re‑TM‑B永磁材料的制作方法 |
| JP6365447B2 (ja) | 2015-07-08 | 2018-08-01 | トヨタ自動車株式会社 | ロータの製造方法 |
| CN105206371A (zh) * | 2015-10-13 | 2015-12-30 | 南通长江电器实业有限公司 | 一种低成本高矫顽力稀土永磁材料 |
| CN105537577A (zh) * | 2015-12-17 | 2016-05-04 | 中磁科技股份有限公司 | Nd-Fe-B粉末颗粒动态取向方法 |
| CN106964778A (zh) * | 2016-01-14 | 2017-07-21 | 罗伯特·博世有限公司 | 生产热变形磁体的方法和设备 |
| DE102016217138A1 (de) | 2016-09-08 | 2018-03-08 | Robert Bosch Gmbh | Verfahren und zugehörige Schmiedehohlform zur Herstellung eines heißumgeformten Magneten |
| KR102347739B1 (ko) * | 2017-12-11 | 2022-01-06 | 현대자동차주식회사 | 강자계 방식 열간 압출 영구자석 제조공법 및 ipm 모터 |
| JP7201332B2 (ja) * | 2018-04-09 | 2023-01-10 | トヨタ自動車株式会社 | 希土類磁石の製造方法及びそれに用いられる製造装置 |
| CN111326336B (zh) * | 2020-02-28 | 2021-06-22 | 大连理工大学 | 一种振荡式热变形和渗透一体化的高矫顽力稀土永磁体制备方法 |
| CN112170848B (zh) * | 2020-07-23 | 2023-06-09 | 湖州机床厂有限公司 | 铝合金粉末挤锻成形设备及挤锻成形方法 |
| CN119252646B (zh) * | 2024-12-06 | 2025-02-11 | 安泰北方科技有限公司 | 钕铁硼磁体的生产设备及工艺 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI290958B (en) * | 2004-04-16 | 2007-12-11 | Nippon Steel Corp | A non-oriented electrical steel sheet having excellent punchability and magnetic property after stress-relief annealing and a method of production of the same |
| TWI322052B (enExample) * | 2005-10-28 | 2010-03-21 | Toyota Motor Co Ltd | |
| CN101933103A (zh) * | 2007-11-02 | 2010-12-29 | 丰田自动车株式会社 | 磁芯用粉末、压粉磁芯、以及它们的制造方法 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0261292B1 (en) * | 1986-07-28 | 1992-06-10 | Crucible Materials Corporation | Method of producing fully dense permanent magnet alloy article |
| JPS64704A (en) * | 1987-03-02 | 1989-01-05 | Seiko Epson Corp | Rare earth-iron system permanent magnet |
| JPH01248503A (ja) * | 1988-03-29 | 1989-10-04 | Daido Steel Co Ltd | Ｒ−Ｆｅ−Ｂ系異方性磁石の製造方法 |
| SU1622082A1 (ru) * | 1988-09-27 | 1991-01-23 | Институт проблем сверхпластичности металлов АН СССР | Способ получени анизотропных посто нных магнитов из быстрозакаленных сплавов системы железо-редкоземельный элемент-бор |
| JP2794755B2 (ja) | 1989-03-25 | 1998-09-10 | セイコーエプソン株式会社 | 希土類元素―遷移元素―ｂ系磁石の製造方法 |
| JPH02250919A (ja) | 1989-03-25 | 1990-10-08 | Kobe Steel Ltd | 希土類元素―遷移元素―ｂ系磁石の製造方法 |
| JP2794754B2 (ja) | 1989-03-25 | 1998-09-10 | セイコーエプソン株式会社 | 希土類元素―遷移元素―ｂ系磁石の製造方法 |
| JPH02250920A (ja) | 1989-03-25 | 1990-10-08 | Kobe Steel Ltd | 希土類元素―遷移元素―ｂ系磁石の鍛造による製造方法 |
| US5085716A (en) * | 1990-02-20 | 1992-02-04 | General Motors Corporation | Hot worked rare earth-iron-carbon magnets |
| JPH044301A (ja) | 1990-04-18 | 1992-01-08 | Matsushita Electric Ind Co Ltd | 空気圧駆動装置 |
| JPH0444301A (ja) | 1990-06-12 | 1992-02-14 | Seiko Epson Corp | 希土類永久磁石の製造方法 |
| JPH04134804A (ja) | 1990-09-27 | 1992-05-08 | Seiko Epson Corp | 希土類永久磁石の製造方法 |
| JPH05129128A (ja) * | 1991-11-05 | 1993-05-25 | Hitachi Metals Ltd | リング形状永久磁石およびその製造方法 |
| JPH05166655A (ja) * | 1991-12-18 | 1993-07-02 | Seiko Epson Corp | 樹脂結合型磁石の製造方法 |
| JP3261050B2 (ja) | 1996-11-29 | 2002-02-25 | 山陽特殊製鋼株式会社 | 赤道状に異方化された球状Ｃｕ−Ｎｉ−Ｆｅ合金磁石の製造方法 |
| JP4957415B2 (ja) * | 2006-09-06 | 2012-06-20 | 大同特殊鋼株式会社 | 永久磁石の製造方法および永久磁石 |
| RU2337975C2 (ru) * | 2006-12-11 | 2008-11-10 | Дмитрий Валерьевич Гундеров | Способ получения постоянных магнитов из сплавов на основе системы неодим-железо-бор или празеодим-железо-бор |
| JP2008172037A (ja) * | 2007-01-12 | 2008-07-24 | Daido Steel Co Ltd | 希土類磁石及びその製造方法 |
| US8187392B2 (en) * | 2007-07-02 | 2012-05-29 | Hitachi Metals, Ltd. | R-Fe-B type rare earth sintered magnet and process for production of the same |
| JP5125818B2 (ja) * | 2007-07-24 | 2013-01-23 | 日産自動車株式会社 | 磁性体成形体およびその製造方法 |
| WO2011070827A1 (ja) * | 2009-12-09 | 2011-06-16 | 愛知製鋼株式会社 | 希土類異方性磁石とその製造方法 |
| JP5413383B2 (ja) | 2011-02-23 | 2014-02-12 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
-
2013
- 2013-10-10 JP JP2013212883A patent/JP6044504B2/ja not_active Expired - Fee Related
- 2013-10-17 WO PCT/JP2013/078191 patent/WO2014065188A1/ja not_active Ceased
- 2013-10-17 US US14/436,959 patent/US9905362B2/en active Active
- 2013-10-17 BR BR112015008267-0A patent/BR112015008267B1/pt not_active IP Right Cessation
- 2013-10-17 EP EP13848858.0A patent/EP2913831B1/en not_active Not-in-force
- 2013-10-17 KR KR1020157007546A patent/KR101632853B1/ko not_active Expired - Fee Related
- 2013-10-17 CN CN201380055338.0A patent/CN104737251B/zh not_active Expired - Fee Related
- 2013-10-17 RU RU2015113451/02A patent/RU2595073C1/ru active
- 2013-10-17 CA CA2887984A patent/CA2887984C/en not_active Expired - Fee Related
- 2013-10-17 IN IN3164DEN2015 patent/IN2015DN03164A/en unknown
- 2013-10-22 TW TW102138082A patent/TWI466141B/zh not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI290958B (en) * | 2004-04-16 | 2007-12-11 | Nippon Steel Corp | A non-oriented electrical steel sheet having excellent punchability and magnetic property after stress-relief annealing and a method of production of the same |
| TWI322052B (enExample) * | 2005-10-28 | 2010-03-21 | Toyota Motor Co Ltd | |
| CN101933103A (zh) * | 2007-11-02 | 2010-12-29 | 丰田自动车株式会社 | 磁芯用粉末、压粉磁芯、以及它们的制造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015008267A2 (pt) | 2017-07-04 |
| WO2014065188A1 (ja) | 2014-05-01 |
| US9905362B2 (en) | 2018-02-27 |
| KR101632853B1 (ko) | 2016-06-22 |
| CA2887984A1 (en) | 2014-05-01 |
| CN104737251B (zh) | 2017-12-08 |
| BR112015008267B1 (pt) | 2021-10-05 |
| RU2595073C1 (ru) | 2016-08-20 |
| EP2913831B1 (en) | 2017-04-19 |
| CA2887984C (en) | 2016-09-06 |
| TW201430873A (zh) | 2014-08-01 |
| CN104737251A (zh) | 2015-06-24 |
| JP6044504B2 (ja) | 2016-12-14 |
| IN2015DN03164A (enExample) | 2015-10-02 |
| JP2014103386A (ja) | 2014-06-05 |
| US20150287530A1 (en) | 2015-10-08 |
| KR20150052114A (ko) | 2015-05-13 |
| EP2913831A1 (en) | 2015-09-02 |
| EP2913831A4 (en) | 2015-11-25 |
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