TWI476791B - RTB rare earth sintered magnet - Google Patents
RTB rare earth sintered magnet Download PDFInfo
- Publication number
- TWI476791B TWI476791B TW100116763A TW100116763A TWI476791B TW I476791 B TWI476791 B TW I476791B TW 100116763 A TW100116763 A TW 100116763A TW 100116763 A TW100116763 A TW 100116763A TW I476791 B TWI476791 B TW I476791B
- Authority
- TW
- Taiwan
- Prior art keywords
- rare earth
- mass
- sintered magnet
- magnet
- phase
- Prior art date
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims description 46
- 150000002910 rare earth metals Chemical class 0.000 title claims description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 229910052759 nickel Inorganic materials 0.000 claims description 23
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052706 scandium Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 description 27
- 230000007797 corrosion Effects 0.000 description 27
- 239000012071 phase Substances 0.000 description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 19
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- 229910001172 neodymium magnet Inorganic materials 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010298 pulverizing process Methods 0.000 description 9
- 229910052779 Neodymium Inorganic materials 0.000 description 7
- 238000005266 casting Methods 0.000 description 7
- 238000004453 electron probe microanalysis Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052692 Dysprosium Inorganic materials 0.000 description 4
- 229910000640 Fe alloy Inorganic materials 0.000 description 4
- 229910052777 Praseodymium Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000000635 electron micrograph Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000005639 Lauric acid Substances 0.000 description 2
- PFZCZKYOFNEBAM-UHFFFAOYSA-N [Fe].[Sr] Chemical compound [Fe].[Sr] PFZCZKYOFNEBAM-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000012552 review Methods 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
-
- 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
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- H01F41/026—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 protecting methods against environmental influences, e.g. oxygen, by surface treatment
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010111743 | 2010-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201222575A TW201222575A (en) | 2012-06-01 |
| TWI476791B true TWI476791B (zh) | 2015-03-11 |
Family
ID=44117733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100116763A TWI476791B (zh) | 2010-05-14 | 2011-05-13 | RTB rare earth sintered magnet |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8298351B2 (enExample) |
| EP (1) | EP2387044B1 (enExample) |
| JP (2) | JP2011258935A (enExample) |
| KR (1) | KR20110126059A (enExample) |
| CN (1) | CN102360654B (enExample) |
| PH (1) | PH12011000150A1 (enExample) |
| RU (1) | RU2559035C2 (enExample) |
| TW (1) | TWI476791B (enExample) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5397575B1 (ja) * | 2012-02-13 | 2014-01-22 | Ｔｄｋ株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| TWI556270B (zh) * | 2012-04-11 | 2016-11-01 | 信越化學工業股份有限公司 | 稀土燒結磁體及製造方法 |
| JP6119548B2 (ja) * | 2012-10-17 | 2017-04-26 | 信越化学工業株式会社 | 希土類焼結磁石の製造方法 |
| TWI476793B (zh) * | 2013-05-30 | 2015-03-11 | China Steel Corp | 釹鐵硼磁石及其製造方法 |
| CN103258634B (zh) * | 2013-05-30 | 2015-11-25 | 烟台正海磁性材料股份有限公司 | 一种制备高性能R-Fe-B系烧结磁体方法 |
| CN105190792B (zh) * | 2013-07-03 | 2018-06-12 | Tdk株式会社 | R-t-b系烧结磁体 |
| CN105453193B (zh) * | 2013-08-09 | 2018-01-12 | Tdk株式会社 | R‑t‑b系烧结磁铁以及电机 |
| US10388441B2 (en) * | 2013-08-09 | 2019-08-20 | Tdk Corporation | R-T-B based sintered magnet and motor |
| WO2015020181A1 (ja) * | 2013-08-09 | 2015-02-12 | Tdk株式会社 | Ｒ－ｔ－ｂ系焼結磁石、および、モータ |
| WO2015020180A1 (ja) * | 2013-08-09 | 2015-02-12 | Tdk株式会社 | Ｒ－ｔ－ｂ系焼結磁石、および回転機 |
| US10847290B2 (en) | 2013-08-12 | 2020-11-24 | Hitachi Metals, Ltd. | R-T-B based sintered magnet |
| CN103871704B (zh) * | 2014-03-04 | 2016-03-09 | 南京信息工程大学 | 一种钕铁氮磷永磁材料及制备方法 |
| JP2015228431A (ja) * | 2014-06-02 | 2015-12-17 | インターメタリックス株式会社 | ＲＦｅＢ系磁石及びＲＦｅＢ系磁石の製造方法 |
| JP6572550B2 (ja) * | 2015-02-04 | 2019-09-11 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| CN106024235B (zh) * | 2015-03-30 | 2020-01-17 | 日立金属株式会社 | R－t－b系烧结磁体 |
| WO2017018252A1 (ja) * | 2015-07-29 | 2017-02-02 | 日立金属株式会社 | 希土類系焼結磁石の製造方法 |
| CN106448985A (zh) * | 2015-09-28 | 2017-02-22 | 厦门钨业股份有限公司 | 一种复合含有Pr和W的R‑Fe‑B系稀土烧结磁铁 |
| JP6488976B2 (ja) | 2015-10-07 | 2019-03-27 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| JP6614084B2 (ja) * | 2016-09-26 | 2019-12-04 | 信越化学工業株式会社 | Ｒ−Ｆｅ−Ｂ系焼結磁石の製造方法 |
| JP6894305B2 (ja) * | 2016-12-28 | 2021-06-30 | トヨタ自動車株式会社 | 希土類磁石及びその製造方法 |
| JP7056264B2 (ja) * | 2017-03-22 | 2022-04-19 | Tdk株式会社 | Ｒ－ｔ－ｂ系希土類磁石 |
| JP7247548B2 (ja) * | 2017-12-28 | 2023-03-29 | トヨタ自動車株式会社 | 希土類磁石及びその製造方法 |
| CN108922710B (zh) * | 2018-07-18 | 2020-03-20 | 钢铁研究总院 | 一种高韧性、高矫顽力含Ce烧结稀土永磁体及其制备方法 |
| CN109576557A (zh) * | 2018-10-08 | 2019-04-05 | 柳州凯通新材料科技有限公司 | 一种高磁能积高速无刷电机电芯材料及其制备方法 |
| JP7196708B2 (ja) * | 2019-03-18 | 2022-12-27 | Tdk株式会社 | Ｒ‐ｔ‐ｂ系永久磁石 |
| CN111180159B (zh) * | 2019-12-31 | 2021-12-17 | 厦门钨业股份有限公司 | 一种钕铁硼永磁材料、制备方法、应用 |
| CN111081444B (zh) * | 2019-12-31 | 2021-11-26 | 厦门钨业股份有限公司 | R-t-b系烧结磁体及其制备方法 |
| CN112795860B (zh) * | 2020-04-27 | 2022-04-26 | 天津京磁电子元件制造有限公司 | 烧结钕铁硼磁体表面耐蚀防护涂层的制备方法 |
| US20210366635A1 (en) * | 2020-05-19 | 2021-11-25 | Shin-Etsu Chemical Co., Ltd. | Rare earth sintered magnet and making method |
| CN112802650B (zh) * | 2020-12-30 | 2023-01-10 | 包头天和磁材科技股份有限公司 | 钐钴磁体及其制备方法和钛的用途 |
| CN115188551B (zh) * | 2022-07-26 | 2025-07-25 | 宁波大缙华磁性材料有限公司 | 一种耐腐蚀的烧结钕铁硼磁材及其制备工艺和由该钕铁硼磁材制成的圆柱体磁块 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139447A1 (en) * | 1988-02-29 | 2002-10-03 | Satoshi Hirosawa | Magnetically anisotropic sintered magnets |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007847B (zh) | 1984-12-24 | 1990-05-02 | 住友特殊金属株式会社 | 制造具有改进耐蚀性磁铁的方法 |
| JPS61208807A (ja) * | 1985-03-13 | 1986-09-17 | Hitachi Metals Ltd | 永久磁石 |
| US5015307A (en) | 1987-10-08 | 1991-05-14 | Kawasaki Steel Corporation | Corrosion resistant rare earth metal magnet |
| JPH024939A (ja) * | 1987-10-08 | 1990-01-09 | Kawasaki Steel Corp | 希土類―遷移金属系磁石合金 |
| JPH01289102A (ja) * | 1988-05-16 | 1989-11-21 | Kawasaki Steel Corp | 希土類永久磁石の製造方法 |
| JPH0653019A (ja) * | 1992-03-19 | 1994-02-25 | Sumitomo Special Metals Co Ltd | 希土類磁石並びに希土類磁石合金粉末とその製造方法 |
| US5482575A (en) * | 1992-12-08 | 1996-01-09 | Ugimag Sa | Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof |
| JP3393018B2 (ja) * | 1996-08-23 | 2003-04-07 | 住友特殊金属株式会社 | 薄肉Ｒ−Ｆｅ−Ｂ系焼結磁石の製造方法 |
| RU2174261C1 (ru) * | 2000-12-26 | 2001-09-27 | Московский государственный институт стали и сплавов (технологический университет) | Материал для редкоземельных постоянных магнитов и способ его получения |
| JP3877552B2 (ja) | 2001-07-30 | 2007-02-07 | Ｔｄｋ株式会社 | 金属部材の製造方法 |
| JP2004006767A (ja) * | 2002-03-29 | 2004-01-08 | Tdk Corp | 永久磁石 |
| US7199690B2 (en) * | 2003-03-27 | 2007-04-03 | Tdk Corporation | R-T-B system rare earth permanent magnet |
| JP4260087B2 (ja) * | 2004-09-27 | 2009-04-30 | 日立金属株式会社 | 希土類焼結磁石及びその製造方法 |
| JP2007165607A (ja) * | 2005-12-14 | 2007-06-28 | Neomax Co Ltd | 永久磁石の製造方法 |
| 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 |
| KR101378090B1 (ko) * | 2007-05-02 | 2014-03-27 | 히다찌긴조꾸가부시끼가이사 | Ｒ－ｔ－ｂ계 소결 자석 |
| JP5153643B2 (ja) * | 2007-06-29 | 2013-02-27 | Ｔｄｋ株式会社 | 希土類磁石 |
| JP5299737B2 (ja) * | 2007-09-28 | 2013-09-25 | 日立金属株式会社 | Ｒ−ｔ−ｂ系焼結永久磁石用急冷合金およびそれを用いたｒ−ｔ−ｂ系焼結永久磁石 |
| JP5120710B2 (ja) * | 2008-06-13 | 2013-01-16 | 日立金属株式会社 | ＲＬ−ＲＨ−Ｔ−Ｍｎ−Ｂ系焼結磁石 |
-
2011
- 2011-04-27 JP JP2011099465A patent/JP2011258935A/ja not_active Withdrawn
- 2011-05-03 PH PH1/2011/000150A patent/PH12011000150A1/en unknown
- 2011-05-09 US US13/103,426 patent/US8298351B2/en active Active
- 2011-05-10 EP EP11165529.6A patent/EP2387044B1/en active Active
- 2011-05-13 RU RU2011119505/07A patent/RU2559035C2/ru active
- 2011-05-13 TW TW100116763A patent/TWI476791B/zh active
- 2011-05-13 CN CN201110165282.7A patent/CN102360654B/zh active Active
- 2011-05-13 KR KR1020110044935A patent/KR20110126059A/ko not_active Abandoned
-
2014
- 2014-11-19 JP JP2014234317A patent/JP6090596B2/ja active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139447A1 (en) * | 1988-02-29 | 2002-10-03 | Satoshi Hirosawa | Magnetically anisotropic sintered magnets |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2387044B1 (en) | 2014-11-26 |
| KR20110126059A (ko) | 2011-11-22 |
| EP2387044A1 (en) | 2011-11-16 |
| RU2011119505A (ru) | 2012-11-20 |
| US8298351B2 (en) | 2012-10-30 |
| JP2015053517A (ja) | 2015-03-19 |
| RU2559035C2 (ru) | 2015-08-10 |
| US20110279205A1 (en) | 2011-11-17 |
| JP2011258935A (ja) | 2011-12-22 |
| CN102360654A (zh) | 2012-02-22 |
| JP6090596B2 (ja) | 2017-03-08 |
| CN102360654B (zh) | 2016-01-20 |
| TW201222575A (en) | 2012-06-01 |
| PH12011000150A1 (en) | 2015-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI476791B (zh) | RTB rare earth sintered magnet | |
| JP3143156B2 (ja) | 希土類永久磁石の製造方法 | |
| JP5729051B2 (ja) | Ｒ−ｔ−ｂ系希土類焼結磁石 | |
| CN100334658C (zh) | R－t－b系稀土类永久磁铁以及磁铁组合物 | |
| JP2021533557A (ja) | 高い耐久性および高い保磁力を有するＣｅ含有焼結希土類永久磁石、およびその調製方法 | |
| JPWO2002103719A1 (ja) | 希土類永久磁石材料 | |
| JPWO2005123974A1 (ja) | Ｒ−Ｆｅ−Ｂ系希土類永久磁石材料 | |
| JP2002075717A (ja) | Ｒ−Ｆｅ−Ｂ系希土類永久磁石材料 | |
| JP2015122395A (ja) | Ｒ−ｔ−ｂ系焼結磁石の製造方法 | |
| JP4951703B2 (ja) | Ｒ−ｔ−ｂ系希土類永久磁石用合金材料、ｒ−ｔ−ｂ系希土類永久磁石の製造方法およびモーター | |
| JP2000234151A (ja) | Ｒ−Ｆｅ−Ｂ系希土類永久磁石材料 | |
| JP4895027B2 (ja) | Ｒ−ｔ−ｂ系焼結磁石及びｒ−ｔ−ｂ系焼結磁石の製造方法 | |
| JP2853838B2 (ja) | 希土類永久磁石の製造方法 | |
| JPH04184901A (ja) | 希土類鉄系永久磁石およびその製造方法 | |
| JP2853839B2 (ja) | 希土類永久磁石の製造方法 | |
| JPH04330702A (ja) | 耐触性に優れた希土類永久磁石 | |
| JPS63313807A (ja) | 耐食性のすぐれた高性能永久磁石及びその製造方法 | |
| JP2006219723A (ja) | Ｒ−Ｆｅ−Ｂ系希土類永久磁石 | |
| JP2000331810A (ja) | Ｒ−Ｆｅ−Ｂ系希土類永久磁石材料 | |
| JP2013197240A (ja) | Ｎｄ−Ｆｅ−Ｂ系希土類焼結磁石及びその製造方法。 | |
| JPH0316763B2 (enExample) | ||
| JP2005286175A (ja) | Ｒ−ｔ−ｂ系焼結磁石及びその製造方法 | |
| JPH0521219A (ja) | 希土類永久磁石の製造方法 | |
| JP2005286174A (ja) | Ｒ−ｔ−ｂ系焼結磁石 | |
| JP2005286173A (ja) | Ｒ−ｔ−ｂ系焼結磁石 |