JP2003031409A - 耐食性に優れた希土類焼結磁石 - Google Patents
耐食性に優れた希土類焼結磁石Info
- Publication number
- JP2003031409A JP2003031409A JP2001218116A JP2001218116A JP2003031409A JP 2003031409 A JP2003031409 A JP 2003031409A JP 2001218116 A JP2001218116 A JP 2001218116A JP 2001218116 A JP2001218116 A JP 2001218116A JP 2003031409 A JP2003031409 A JP 2003031409A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- alloy
- rich
- corrosion resistance
- main
- 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.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 27
- 238000005260 corrosion Methods 0.000 title claims abstract description 27
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 25
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910020637 Co-Cu Inorganic materials 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 239000012071 phase Substances 0.000 description 73
- 229910045601 alloy Inorganic materials 0.000 description 35
- 239000000956 alloy Substances 0.000 description 35
- 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 18
- 239000000843 powder Substances 0.000 description 15
- 230000003647 oxidation Effects 0.000 description 12
- 238000007254 oxidation reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000005204 segregation Methods 0.000 description 10
- 229910000765 intermetallic Inorganic materials 0.000 description 8
- 229910052779 Neodymium Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052777 Praseodymium Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000010902 jet-milling Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 239000013585 weight reducing agent Substances 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
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001218116A JP2003031409A (ja) | 2001-07-18 | 2001-07-18 | 耐食性に優れた希土類焼結磁石 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001218116A JP2003031409A (ja) | 2001-07-18 | 2001-07-18 | 耐食性に優れた希土類焼結磁石 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003031409A true JP2003031409A (ja) | 2003-01-31 |
| JP2003031409A5 JP2003031409A5 (https=) | 2006-01-05 |
Family
ID=19052345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001218116A Pending JP2003031409A (ja) | 2001-07-18 | 2001-07-18 | 耐食性に優れた希土類焼結磁石 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003031409A (https=) |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011014631A (ja) * | 2009-06-30 | 2011-01-20 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石およびモーター、自動車、発電機、風力発電装置 |
| JP2011187734A (ja) * | 2010-03-09 | 2011-09-22 | Tdk Corp | 希土類焼結磁石及び希土類焼結磁石の製造方法 |
| US20110234348A1 (en) * | 2010-03-23 | 2011-09-29 | Tdk Corporation | Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator |
| JP2011199180A (ja) * | 2010-03-23 | 2011-10-06 | Tdk Corp | 希土類磁石及び回転機 |
| JP2011199183A (ja) * | 2010-03-23 | 2011-10-06 | Tdk Corp | 希土類磁石及び回転機 |
| JP2011210838A (ja) * | 2010-03-29 | 2011-10-20 | Tdk Corp | 希土類焼結磁石及びその製造方法、並びに回転機 |
| JP2012015169A (ja) * | 2010-06-29 | 2012-01-19 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石、モーター、自動車、発電機、風力発電装置 |
| JP2012015168A (ja) * | 2010-06-29 | 2012-01-19 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石、モーター、自動車、発電機、風力発電装置 |
| EP2413332A1 (en) | 2010-07-27 | 2012-02-01 | TDK Corporation | Rare earth sintered magnet |
| JP2012199270A (ja) * | 2011-03-18 | 2012-10-18 | Tdk Corp | Ｒ−ｔ−ｂ系希土類焼結磁石 |
| JP2012204486A (ja) * | 2011-03-24 | 2012-10-22 | Hitachi Metals Ltd | 表面改質されたＲ−Ｆｅ−Ｂ系焼結磁石およびその製造方法 |
| CN103093913A (zh) * | 2011-11-21 | 2013-05-08 | 宁波市展发磁业科技有限公司 | 一种高饱和磁性材料 |
| JP2013191849A (ja) * | 2006-09-15 | 2013-09-26 | Inter Metallics Kk | ＮｄＦｅＢ焼結磁石 |
| JP2014112624A (ja) * | 2012-10-31 | 2014-06-19 | Hitachi Metals Ltd | Ｒ−ｔ−ｂ系焼結磁石およびその製造方法 |
| JP2014130888A (ja) * | 2012-12-28 | 2014-07-10 | Hitachi Metals Ltd | Ｒ−ｔ−ｂ系焼結磁石およびその製造方法 |
| CN103959404A (zh) * | 2011-11-29 | 2014-07-30 | Tdk株式会社 | 稀土类烧结磁铁 |
| JP2014146788A (ja) * | 2013-01-07 | 2014-08-14 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類焼結磁石、ｒ−ｔ−ｂ系希土類焼結磁石用合金およびその製造方法 |
| JP2014209546A (ja) * | 2013-03-28 | 2014-11-06 | Tdk株式会社 | 希土類磁石 |
| JP2014225623A (ja) * | 2013-04-22 | 2014-12-04 | 昭和電工株式会社 | Ｒ−ｔ−ｂ系希土類焼結磁石およびその製造方法 |
| WO2015002280A1 (ja) * | 2013-07-03 | 2015-01-08 | Tdk株式会社 | Ｒ－ｔ－ｂ系焼結磁石 |
| JP2015119130A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| JP2015119132A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| JP2015119131A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| JPWO2015020182A1 (ja) * | 2013-08-09 | 2017-03-02 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石、および、モータ |
| CN111326305A (zh) * | 2020-02-29 | 2020-06-23 | 厦门钨业股份有限公司 | 一种r-t-b系永磁材料及其制备方法和应用 |
| CN112614641A (zh) * | 2019-10-04 | 2021-04-06 | 大同特殊钢株式会社 | 烧结磁体和烧结磁体的生产方法 |
| JP2023177261A (ja) * | 2022-05-31 | 2023-12-13 | 煙台東星磁性材料株式有限公司 | 希土類磁性体及びその製造方法 |
| JP2024543836A (ja) * | 2022-09-08 | 2024-11-26 | 南通正海磁材有限公司 | 高耐食性と高磁気特性を有するネオジム鉄ボロン系焼結磁石及びその製造方法 |
-
2001
- 2001-07-18 JP JP2001218116A patent/JP2003031409A/ja active Pending
Cited By (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013191849A (ja) * | 2006-09-15 | 2013-09-26 | Inter Metallics Kk | ＮｄＦｅＢ焼結磁石 |
| JP2011014631A (ja) * | 2009-06-30 | 2011-01-20 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石およびモーター、自動車、発電機、風力発電装置 |
| JP2011187734A (ja) * | 2010-03-09 | 2011-09-22 | Tdk Corp | 希土類焼結磁石及び希土類焼結磁石の製造方法 |
| US20110234348A1 (en) * | 2010-03-23 | 2011-09-29 | Tdk Corporation | Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator |
| JP2011199180A (ja) * | 2010-03-23 | 2011-10-06 | Tdk Corp | 希土類磁石及び回転機 |
| JP2011199183A (ja) * | 2010-03-23 | 2011-10-06 | Tdk Corp | 希土類磁石及び回転機 |
| US10395822B2 (en) | 2010-03-23 | 2019-08-27 | Tdk Corporation | Rare-earth magnet, method of manufacturing rare-earth magnet, and rotator |
| JP2011210838A (ja) * | 2010-03-29 | 2011-10-20 | Tdk Corp | 希土類焼結磁石及びその製造方法、並びに回転機 |
| JP2012015169A (ja) * | 2010-06-29 | 2012-01-19 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石、モーター、自動車、発電機、風力発電装置 |
| JP2012015168A (ja) * | 2010-06-29 | 2012-01-19 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類永久磁石、モーター、自動車、発電機、風力発電装置 |
| EP2590181A4 (en) * | 2010-06-29 | 2015-12-02 | Showa Denko Kk | R-T-B-RARE-PERMANENT MAGNET, MOTOR, AUTOMOTIVE, ELECTRICITY GENERATOR AND WIND ENERGY CONVERSION SYSTEM |
| EP2413332A1 (en) | 2010-07-27 | 2012-02-01 | TDK Corporation | Rare earth sintered magnet |
| CN102376407A (zh) * | 2010-07-27 | 2012-03-14 | Tdk株式会社 | 稀土类烧结磁体 |
| US8425695B2 (en) | 2010-07-27 | 2013-04-23 | Tdk Corporation | Rare earth sintered magnet |
| JP2012028704A (ja) * | 2010-07-27 | 2012-02-09 | Tdk Corp | 希土類焼結磁石 |
| JP2012199270A (ja) * | 2011-03-18 | 2012-10-18 | Tdk Corp | Ｒ−ｔ−ｂ系希土類焼結磁石 |
| JP2012204486A (ja) * | 2011-03-24 | 2012-10-22 | Hitachi Metals Ltd | 表面改質されたＲ−Ｆｅ−Ｂ系焼結磁石およびその製造方法 |
| CN103093913A (zh) * | 2011-11-21 | 2013-05-08 | 宁波市展发磁业科技有限公司 | 一种高饱和磁性材料 |
| CN103093913B (zh) * | 2011-11-21 | 2015-11-25 | 宁波市展发磁业科技有限公司 | 一种高饱和磁性材料 |
| CN103959404A (zh) * | 2011-11-29 | 2014-07-30 | Tdk株式会社 | 稀土类烧结磁铁 |
| CN103959404B (zh) * | 2011-11-29 | 2015-08-05 | Tdk株式会社 | 稀土类烧结磁铁 |
| DE112012004991B4 (de) | 2011-11-29 | 2022-03-24 | Tdk Corporation | Seltenerdbasierter gesinterter Magnet |
| US8961712B2 (en) | 2011-11-29 | 2015-02-24 | Tdk Corporation | Rare earth based sintered magnet |
| JP2014112624A (ja) * | 2012-10-31 | 2014-06-19 | Hitachi Metals Ltd | Ｒ−ｔ−ｂ系焼結磁石およびその製造方法 |
| JP2014130888A (ja) * | 2012-12-28 | 2014-07-10 | Hitachi Metals Ltd | Ｒ−ｔ−ｂ系焼結磁石およびその製造方法 |
| JP2014146788A (ja) * | 2013-01-07 | 2014-08-14 | Showa Denko Kk | Ｒ−ｔ−ｂ系希土類焼結磁石、ｒ−ｔ−ｂ系希土類焼結磁石用合金およびその製造方法 |
| JP2014209546A (ja) * | 2013-03-28 | 2014-11-06 | Tdk株式会社 | 希土類磁石 |
| JP2014225623A (ja) * | 2013-04-22 | 2014-12-04 | 昭和電工株式会社 | Ｒ−ｔ−ｂ系希土類焼結磁石およびその製造方法 |
| US10020097B2 (en) | 2013-04-22 | 2018-07-10 | Showa Denko K.K. | R-T-B rare earth sintered magnet and method of manufacturing the same |
| WO2015002280A1 (ja) * | 2013-07-03 | 2015-01-08 | Tdk株式会社 | Ｒ－ｔ－ｂ系焼結磁石 |
| US10096410B2 (en) | 2013-07-03 | 2018-10-09 | Tdk Corporation | R-T-B based sintered magnet |
| CN105190792A (zh) * | 2013-07-03 | 2015-12-23 | Tdk株式会社 | R-t-b系烧结磁体 |
| US20160086701A1 (en) * | 2013-07-03 | 2016-03-24 | Tdk Corporation | R-t-b based sintered magnet |
| JPWO2015002280A1 (ja) * | 2013-07-03 | 2017-02-23 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石 |
| JPWO2015020182A1 (ja) * | 2013-08-09 | 2017-03-02 | Tdk株式会社 | Ｒ−ｔ−ｂ系焼結磁石、および、モータ |
| JP2015119130A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| US10083783B2 (en) | 2013-12-20 | 2018-09-25 | Tdk Corporation | Rare earth based magnet |
| JP2015119131A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| US10090087B2 (en) | 2013-12-20 | 2018-10-02 | Tdk Corporation | Rare earth based magnet |
| JP2015119132A (ja) * | 2013-12-20 | 2015-06-25 | Tdk株式会社 | 希土類磁石 |
| JP7400317B2 (ja) | 2019-10-04 | 2023-12-19 | 大同特殊鋼株式会社 | 焼結磁石および焼結磁石の製造方法 |
| CN112614641A (zh) * | 2019-10-04 | 2021-04-06 | 大同特殊钢株式会社 | 烧结磁体和烧结磁体的生产方法 |
| US20210104341A1 (en) * | 2019-10-04 | 2021-04-08 | Daido Steel Co., Ltd. | Sintered magnet and method for producing sintered magnet |
| JP2021061301A (ja) * | 2019-10-04 | 2021-04-15 | 大同特殊鋼株式会社 | 焼結磁石および焼結磁石の製造方法 |
| CN112614641B (zh) * | 2019-10-04 | 2024-05-28 | 大同特殊钢株式会社 | 烧结磁体和烧结磁体的生产方法 |
| CN111326305A (zh) * | 2020-02-29 | 2020-06-23 | 厦门钨业股份有限公司 | 一种r-t-b系永磁材料及其制备方法和应用 |
| CN111326305B (zh) * | 2020-02-29 | 2022-03-01 | 厦门钨业股份有限公司 | 一种r-t-b系永磁材料及其制备方法和应用 |
| JP2023177261A (ja) * | 2022-05-31 | 2023-12-13 | 煙台東星磁性材料株式有限公司 | 希土類磁性体及びその製造方法 |
| JP7542293B2 (ja) | 2022-05-31 | 2024-08-30 | 煙台東星磁性材料株式有限公司 | 希土類磁性体及びその製造方法 |
| JP2024543836A (ja) * | 2022-09-08 | 2024-11-26 | 南通正海磁材有限公司 | 高耐食性と高磁気特性を有するネオジム鉄ボロン系焼結磁石及びその製造方法 |
| JP7783416B2 (ja) | 2022-09-08 | 2025-12-09 | 南通正海磁材有限公司 | 高耐食性と高磁気特性を有するネオジム鉄ボロン系焼結磁石及びその製造方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003031409A (ja) | 耐食性に優れた希土類焼結磁石 | |
| JP3846835B2 (ja) | Ｒ−ｔ−ｂ系焼結型永久磁石 | |
| TWI238422B (en) | R-Fe-B sintered magnet | |
| JP2003031409A5 (https=) | ||
| US8361242B2 (en) | Powders for rare earth magnets, rare earth magnets and methods for manufacturing the same | |
| US9818515B2 (en) | Modified Nd—Fe—B permanent magnet with high corrosion resistance | |
| CN100334660C (zh) | R－t－b系稀土类永久磁铁的制造方法 | |
| JP6881338B2 (ja) | 希土類磁石の製造方法 | |
| JP7056488B2 (ja) | 磁性粒子及び磁性粒子成形体並びにその製造方法 | |
| JP2014132628A (ja) | Ｒ−ｔ−ｂ系希土類焼結磁石、ｒ−ｔ−ｂ系希土類焼結磁石の製造方法 | |
| JP6044866B2 (ja) | Ｒ−ｔ−ｂ系焼結磁石の製造方法 | |
| CN100334659C (zh) | R－t－b系稀土类永久磁铁 | |
| CN105895286A (zh) | 稀土类永久磁铁 | |
| JP2018018859A (ja) | Ｒ−ｔ−ｂ系焼結磁石 | |
| JPWO2000012771A1 (ja) | Ｒ−ｔ−ｂ系焼結磁石の製造に使用される合金及びｒ−ｔ−ｂ系焼結磁石の製造方法 | |
| WO2000012771A1 (en) | Alloy for use in preparation of r-t-b-based sintered magnet and process for preparing r-t-b-based sintered magnet | |
| JP2020053440A (ja) | 希土類磁石の製造方法 | |
| JP4900085B2 (ja) | 希土類磁石の製造方法 | |
| JP2002038245A (ja) | 希土類永久磁石用合金粉末および希土類永久磁石の製造方法 | |
| EP1271568A2 (en) | Rare earth permanent magnet | |
| JPH0696928A (ja) | 希土類焼結磁石及びその製造方法 | |
| JP2012079796A (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 | |
| JPH10289813A (ja) | 希土類磁石 | |
| JP2747236B2 (ja) | 希土類鉄系永久磁石 | |
| JP6511779B2 (ja) | Ｒ−ｔ−ｂ系焼結磁石 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20040526 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20051115 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051115 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20070613 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080715 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080801 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080929 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090731 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091204 |