SG48990G - Permanent magnet - Google Patents
Permanent magnetInfo
- Publication number
- SG48990G SG48990G SG48990A SG48990A SG48990G SG 48990 G SG48990 G SG 48990G SG 48990 A SG48990 A SG 48990A SG 48990 A SG48990 A SG 48990A SG 48990 G SG48990 G SG 48990G
- Authority
- SG
- Singapore
- Prior art keywords
- permanent magnet
- permanent
- magnet
- Prior art date
Links
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58140590A JPS6032306A (ja) | 1983-08-02 | 1983-08-02 | 永久磁石 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG48990G true SG48990G (en) | 1991-02-14 |
Family
ID=15272223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG48990A SG48990G (en) | 1983-08-02 | 1990-07-04 | Permanent magnet |
Country Status (6)
Country | Link |
---|---|
US (2) | US4773950A (de) |
EP (1) | EP0134305B2 (de) |
JP (1) | JPS6032306A (de) |
DE (1) | DE3378705D1 (de) |
HK (1) | HK68790A (de) |
SG (1) | SG48990G (de) |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5194098A (en) * | 1982-08-21 | 1993-03-16 | Sumitomo Special Metals Co., Ltd. | Magnetic materials |
US5466308A (en) * | 1982-08-21 | 1995-11-14 | Sumitomo Special Metals Co. Ltd. | Magnetic precursor materials for making permanent magnets |
US4597938A (en) * | 1983-05-21 | 1986-07-01 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet materials |
JPS6032306A (ja) * | 1983-08-02 | 1985-02-19 | Sumitomo Special Metals Co Ltd | 永久磁石 |
DE3587977T2 (de) * | 1984-02-28 | 1995-05-18 | Sumitomo Spec Metals | Dauermagnete. |
JPS60228652A (ja) * | 1984-04-24 | 1985-11-13 | Nippon Gakki Seizo Kk | 希土類磁石およびその製法 |
US4767450A (en) * | 1984-11-27 | 1988-08-30 | Sumitomo Special Metals Co., Ltd. | Process for producing the rare earth alloy powders |
JPH0678582B2 (ja) * | 1985-03-26 | 1994-10-05 | 住友特殊金属株式会社 | 永久磁石材料 |
US4588439A (en) * | 1985-05-20 | 1986-05-13 | Crucible Materials Corporation | Oxygen containing permanent magnet alloy |
JPS6231102A (ja) * | 1985-08-01 | 1987-02-10 | Hitachi Metals Ltd | 焼結体永久磁石 |
FR2586323B1 (fr) * | 1985-08-13 | 1992-11-13 | Seiko Epson Corp | Aimant permanent a base de terres rares-fer |
US5538565A (en) * | 1985-08-13 | 1996-07-23 | Seiko Epson Corporation | Rare earth cast alloy permanent magnets and methods of preparation |
US6136099A (en) * | 1985-08-13 | 2000-10-24 | Seiko Epson Corporation | Rare earth-iron series permanent magnets and method of preparation |
JPS62128503A (ja) * | 1985-11-30 | 1987-06-10 | Tohoku Metal Ind Ltd | 焼結型希土類磁石 |
JPH07105289B2 (ja) * | 1986-03-06 | 1995-11-13 | 信越化学工業株式会社 | 希土類永久磁石の製造方法 |
US4769063A (en) * | 1986-03-06 | 1988-09-06 | Sumitomo Special Metals Co., Ltd. | Method for producing rare earth alloy |
US4783245A (en) * | 1986-03-25 | 1988-11-08 | Sumitomo Light Metal Industries, Ltd. | Process and apparatus for producing alloy containing terbium and/or gadolinium |
US4878958A (en) * | 1986-05-30 | 1989-11-07 | Union Oil Company Of California | Method for preparing rare earth-iron-boron permanent magnets |
JPS6398105A (ja) * | 1986-10-15 | 1988-04-28 | Mitsubishi Metal Corp | 金属炭化物分散型Fe基焼結合金製永久磁石 |
EP0277416A3 (de) * | 1987-02-04 | 1990-05-16 | Crucible Materials Corporation | Permanente Magnetlegierung für Anwendungen bei höherer Temperatur |
US5213631A (en) * | 1987-03-02 | 1993-05-25 | Seiko Epson Corporation | Rare earth-iron system permanent magnet and process for producing the same |
ATE107076T1 (de) * | 1987-03-02 | 1994-06-15 | Seiko Epson Corp | Seltene-erden-eisen-typ-dauermagnet und sein herstellungsverfahren. |
EP0288637B1 (de) * | 1987-04-30 | 1994-08-10 | Seiko Epson Corporation | Dauermagnet und sein Herstellungsverfahren |
US5186761A (en) * | 1987-04-30 | 1993-02-16 | Seiko Epson Corporation | Magnetic alloy and method of production |
US5460662A (en) * | 1987-04-30 | 1995-10-24 | Seiko Epson Corporation | Permanent magnet and method of production |
JP2741508B2 (ja) * | 1988-02-29 | 1998-04-22 | 住友特殊金属株式会社 | 磁気異方性焼結磁石とその製造方法 |
US5000800A (en) * | 1988-06-03 | 1991-03-19 | Masato Sagawa | Permanent magnet and method for producing the same |
JPH0271504A (ja) * | 1988-07-07 | 1990-03-12 | Sumitomo Metal Mining Co Ltd | 樹脂磁石用希土類−鉄−ホウ素系合金粉末の製造方法 |
JP2787580B2 (ja) * | 1988-10-06 | 1998-08-20 | 眞人 佐川 | 熱処理性がすぐれたNd−Fe−B系焼結磁石 |
US4931092A (en) * | 1988-12-21 | 1990-06-05 | The Dow Chemical Company | Method for producing metal bonded magnets |
US5114502A (en) * | 1989-06-13 | 1992-05-19 | Sps Technologies, Inc. | Magnetic materials and process for producing the same |
US5244510A (en) * | 1989-06-13 | 1993-09-14 | Yakov Bogatin | Magnetic materials and process for producing the same |
US5122203A (en) * | 1989-06-13 | 1992-06-16 | Sps Technologies, Inc. | Magnetic materials |
US5266128A (en) * | 1989-06-13 | 1993-11-30 | Sps Technologies, Inc. | Magnetic materials and process for producing the same |
US5129964A (en) * | 1989-09-06 | 1992-07-14 | Sps Technologies, Inc. | Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment |
CA2031127C (en) * | 1989-12-01 | 1999-01-19 | Satoshi Hirosawa | Permanent magnet |
WO1992002027A1 (en) * | 1990-07-16 | 1992-02-06 | Nauchno-Proizvodstvennoe Obiedinenie 'vsesojuzny Institut Aviatsionnykh Materialov' | Magnetic material |
JPH0686694U (ja) * | 1993-06-08 | 1994-12-20 | 恭二 中園 | トイレットペーパホールダー |
JP2983902B2 (ja) * | 1996-04-12 | 1999-11-29 | 住友特殊金属株式会社 | 超低温用永久磁石材料 |
KR100345995B1 (ko) * | 1997-02-06 | 2002-07-24 | 스미토모 도큐슈 긴조쿠 가부시키가이샤 | 미세한 결정 조직을 갖는 박판 자석의 제조 방법 |
US6329894B1 (en) * | 1997-02-14 | 2001-12-11 | Sumitomo Special Metals Co., Ltd. | Thin plate magnet having microcrystalline structure |
US6332933B1 (en) | 1997-10-22 | 2001-12-25 | Santoku Corporation | Iron-rare earth-boron-refractory metal magnetic nanocomposites |
CN1265401C (zh) | 1998-07-13 | 2006-07-19 | 株式会社三德 | 制造纳米复合磁性材料的方法以及制造粘结磁体的方法 |
US6319336B1 (en) | 1998-07-29 | 2001-11-20 | Dowa Mining Co., Ltd. | Permanent magnet alloy having improved heat resistance and process for production thereof |
EP1033415B1 (de) * | 1998-08-28 | 2003-05-28 | Showa Denko Kabushiki Kaisha | Legierung zur verwendung bei der herstellung von gesinterten magneten auf r-t-b-basis und verfahren zur herstellung von gesinterten magneten auf r-t-b-basis |
US6648984B2 (en) * | 2000-09-28 | 2003-11-18 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and method for manufacturing the same |
US6833036B2 (en) | 2001-06-29 | 2004-12-21 | Tdk Corporation | Rare earth permanent magnet |
US6994755B2 (en) * | 2002-04-29 | 2006-02-07 | University Of Dayton | Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets |
US6966953B2 (en) * | 2002-04-29 | 2005-11-22 | University Of Dayton | Modified sintered RE-Fe-B-type, rare earth permanent magnets with improved toughness |
JP3997413B2 (ja) | 2002-11-14 | 2007-10-24 | 信越化学工業株式会社 | R−Fe−B系焼結磁石及びその製造方法 |
US7618497B2 (en) | 2003-06-30 | 2009-11-17 | Tdk Corporation | R-T-B based rare earth permanent magnet and method for production thereof |
US20060054245A1 (en) * | 2003-12-31 | 2006-03-16 | Shiqiang Liu | Nanocomposite permanent magnets |
CN1985338A (zh) * | 2004-06-30 | 2007-06-20 | 代顿大学 | 各向异性的纳米复合稀土永磁体及其制造方法 |
JP4391897B2 (ja) | 2004-07-01 | 2009-12-24 | インターメタリックス株式会社 | 磁気異方性希土類焼結磁石の製造方法及び製造装置 |
JP4645855B2 (ja) | 2005-03-14 | 2011-03-09 | Tdk株式会社 | R−t−b系焼結磁石 |
DE112006000070T5 (de) | 2005-07-15 | 2008-08-14 | Hitachi Metals, Ltd. | Seltenerdmetall-Sintermagnet und Verfahren zu seiner Herstellung |
US7682556B2 (en) * | 2005-08-16 | 2010-03-23 | Ut-Battelle Llc | Degassing of molten alloys with the assistance of ultrasonic vibration |
CN101370606B (zh) * | 2005-12-02 | 2013-12-25 | 日立金属株式会社 | 稀土类烧结磁体及其制造方法 |
US8821650B2 (en) | 2009-08-04 | 2014-09-02 | The Boeing Company | Mechanical improvement of rare earth permanent magnets |
EP2472535A4 (de) * | 2009-08-28 | 2013-10-30 | Intermetallics Co Ltd | Verfahren und vorrichtung zur herstellung eines neodyn-eisen-bor-sintermagneten sowie in diesem herstellungsverfahren hergestellter neodyn-eisen-bor-sintermagnet |
JP6278192B2 (ja) * | 2014-04-15 | 2018-02-14 | Tdk株式会社 | 磁石粉末、ボンド磁石およびモータ |
WO2016153057A1 (ja) | 2015-03-25 | 2016-09-29 | Tdk株式会社 | 希土類磁石 |
DE102018105250A1 (de) | 2018-03-07 | 2019-09-12 | Technische Universität Darmstadt | Verfahren zur Herstellung eines Permanentmagnets oder eines hartmagnetischen Materials |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2167240A (en) * | 1937-09-30 | 1939-07-25 | Mallory & Co Inc P R | Magnet material |
GB734597A (en) * | 1951-08-06 | 1955-08-03 | Deutsche Edelstahlwerke Ag | Permanent magnet alloys and the production thereof |
US4063970A (en) * | 1967-02-18 | 1977-12-20 | Magnetfabrik Bonn G.M.B.H. Vormals Gewerkschaft Windhorst | Method of making permanent magnets |
US3560200A (en) * | 1968-04-01 | 1971-02-02 | Bell Telephone Labor Inc | Permanent magnetic materials |
US3684593A (en) * | 1970-11-02 | 1972-08-15 | Gen Electric | Heat-aged sintered cobalt-rare earth intermetallic product and process |
DE2705384C3 (de) * | 1976-02-10 | 1986-03-27 | TDK Corporation, Tokio/Tokyo | Dauermagnet-Legierung und Verfahren zur Wärmebehandlung gesinterter Dauermagnete |
JPS5814865B2 (ja) * | 1978-03-23 | 1983-03-22 | セイコーエプソン株式会社 | 永久磁石材料 |
JPS55115304A (en) * | 1979-02-28 | 1980-09-05 | Daido Steel Co Ltd | Permanent magnet material |
JPS55132004A (en) * | 1979-04-02 | 1980-10-14 | Seiko Instr & Electronics Ltd | Manufacture of rare earth metal and cobalt magnet |
JPS5665954A (en) * | 1979-11-02 | 1981-06-04 | Seiko Instr & Electronics Ltd | Rare earth element magnet and its manufacture |
US4401482A (en) * | 1980-02-22 | 1983-08-30 | Bell Telephone Laboratories, Incorporated | Fe--Cr--Co Magnets by powder metallurgy processing |
US4276097A (en) * | 1980-05-02 | 1981-06-30 | The United States Of America As Represented By The Secretary Of The Army | Method of treating Sm2 Co17 -based permanent magnet alloys |
JPS601940B2 (ja) * | 1980-08-11 | 1985-01-18 | 富士通株式会社 | 感温素子材料 |
JPS5760055A (en) * | 1980-09-29 | 1982-04-10 | Inoue Japax Res Inc | Spinodal decomposition type magnet alloy |
JPS57141901A (en) * | 1981-02-26 | 1982-09-02 | Mitsubishi Steel Mfg Co Ltd | Permanent magnet powder |
US4533408A (en) * | 1981-10-23 | 1985-08-06 | Koon Norman C | Preparation of hard magnetic alloys of a transition metal and lanthanide |
JPS58123853A (ja) * | 1982-01-18 | 1983-07-23 | Fujitsu Ltd | 希土類−鉄系永久磁石およびその製造方法 |
US4792368A (en) * | 1982-08-21 | 1988-12-20 | Sumitomo Special Metals Co., Ltd. | Magnetic materials and permanent magnets |
CA1316375C (en) * | 1982-08-21 | 1993-04-20 | Masato Sagawa | Magnetic materials and permanent magnets |
CA1315571C (en) * | 1982-08-21 | 1993-04-06 | Masato Sagawa | Magnetic materials and permanent magnets |
US4851058A (en) * | 1982-09-03 | 1989-07-25 | General Motors Corporation | High energy product rare earth-iron magnet alloys |
US4840684A (en) * | 1983-05-06 | 1989-06-20 | Sumitomo Special Metals Co, Ltd. | Isotropic permanent magnets and process for producing same |
EP0125347B1 (de) * | 1983-05-06 | 1990-04-18 | Sumitomo Special Metals Co., Ltd. | Isotrope Magneten und Verfahren zu ihrer Herstellung |
CA1216623A (en) * | 1983-05-09 | 1987-01-13 | John J. Croat | Bonded rare earth-iron magnets |
US4597938A (en) * | 1983-05-21 | 1986-07-01 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet materials |
US4684406A (en) * | 1983-05-21 | 1987-08-04 | Sumitomo Special Metals Co., Ltd. | Permanent magnet materials |
US4601875A (en) * | 1983-05-25 | 1986-07-22 | Sumitomo Special Metals Co., Ltd. | Process for producing magnetic materials |
JPS609852A (ja) * | 1983-06-24 | 1985-01-18 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | 高エネルギ−積の稀土類−鉄磁石合金 |
JPS6032306A (ja) * | 1983-08-02 | 1985-02-19 | Sumitomo Special Metals Co Ltd | 永久磁石 |
JPS6034005A (ja) * | 1983-08-04 | 1985-02-21 | Sumitomo Special Metals Co Ltd | 永久磁石 |
-
1983
- 1983-08-02 JP JP58140590A patent/JPS6032306A/ja active Granted
- 1983-09-15 US US06/532,473 patent/US4773950A/en not_active Expired - Lifetime
- 1983-09-23 DE DE8383109501T patent/DE3378705D1/de not_active Expired
- 1983-09-23 EP EP83109501A patent/EP0134305B2/de not_active Expired - Lifetime
-
1988
- 1988-09-27 US US07/249,654 patent/US4975129A/en not_active Expired - Lifetime
-
1990
- 1990-07-04 SG SG48990A patent/SG48990G/en unknown
- 1990-08-30 HK HK687/90A patent/HK68790A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS6032306A (ja) | 1985-02-19 |
DE3378705D1 (en) | 1989-01-19 |
EP0134305B2 (de) | 1993-07-07 |
JPH0510806B2 (de) | 1993-02-10 |
EP0134305B1 (de) | 1988-12-14 |
US4773950A (en) | 1988-09-27 |
HK68790A (en) | 1990-09-07 |
EP0134305A1 (de) | 1985-03-20 |
US4975129A (en) | 1990-12-04 |
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