HK68690A - Permanent magnets - Google Patents
Permanent magnetsInfo
- Publication number
- HK68690A HK68690A HK686/90A HK68690A HK68690A HK 68690 A HK68690 A HK 68690A HK 686/90 A HK686/90 A HK 686/90A HK 68690 A HK68690 A HK 68690A HK 68690 A HK68690 A HK 68690A
- Authority
- HK
- Hong Kong
- Prior art keywords
- permanent magnets
- magnets
- permanent
- 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 |
---|---|---|---|
JP58141850A JPS6034005A (ja) | 1983-08-04 | 1983-08-04 | 永久磁石 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK68690A true HK68690A (en) | 1990-09-07 |
Family
ID=15301613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK686/90A HK68690A (en) | 1983-08-04 | 1990-08-30 | Permanent magnets |
Country Status (7)
Country | Link |
---|---|
US (1) | US4859255A (xx) |
EP (1) | EP0134304B2 (xx) |
JP (1) | JPS6034005A (xx) |
CA (1) | CA1280012C (xx) |
DE (1) | DE3372424D1 (xx) |
HK (1) | HK68690A (xx) |
SG (1) | SG48690G (xx) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6032306A (ja) * | 1983-08-02 | 1985-02-19 | Sumitomo Special Metals Co Ltd | 永久磁石 |
US5230749A (en) * | 1983-08-04 | 1993-07-27 | Sumitomo Special Metals Co., Ltd. | Permanent magnets |
CA1235631A (en) * | 1984-02-28 | 1988-04-26 | Hitoshi Yamamoto | Process for producing permanent magnets and products thereof |
US4767450A (en) * | 1984-11-27 | 1988-08-30 | Sumitomo Special Metals Co., Ltd. | Process for producing the rare earth alloy powders |
JPS61208807A (ja) * | 1985-03-13 | 1986-09-17 | Hitachi Metals Ltd | 永久磁石 |
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 |
FR2586323B1 (fr) * | 1985-08-13 | 1992-11-13 | Seiko Epson Corp | Aimant permanent a base de terres rares-fer |
JPS62165305A (ja) * | 1986-01-16 | 1987-07-21 | Hitachi Metals Ltd | 熱安定性良好な永久磁石およびその製造方法 |
US4769063A (en) * | 1986-03-06 | 1988-09-06 | Sumitomo Special Metals Co., Ltd. | Method for producing rare earth alloy |
US4954186A (en) * | 1986-05-30 | 1990-09-04 | Union Oil Company Of California | Rear earth-iron-boron permanent magnets containing aluminum |
US4878958A (en) * | 1986-05-30 | 1989-11-07 | Union Oil Company Of California | Method for preparing rare earth-iron-boron permanent magnets |
US5230751A (en) * | 1986-07-23 | 1993-07-27 | Hitachi Metals, Ltd. | Permanent magnet with good thermal stability |
US5223047A (en) * | 1986-07-23 | 1993-06-29 | Hitachi Metals, Ltd. | Permanent magnet with good thermal stability |
EP0421488B1 (en) * | 1986-07-23 | 1994-10-12 | Hitachi Metals, Ltd. | Permanent magnet with good thermal stability |
EP0255939B1 (en) * | 1986-08-04 | 1993-07-28 | Sumitomo Special Metals Co., Ltd. | Rare earth magnet and rare earth magnet alloy powder having high corrosion resistance |
JPH0815122B2 (ja) * | 1986-09-19 | 1996-02-14 | 住友特殊金属株式会社 | 耐食性のすぐれた希土類磁石及びその製造方法 |
JPH0752683B2 (ja) * | 1986-11-26 | 1995-06-05 | 住友特殊金属株式会社 | 耐食性のすぐれた希土類磁石 |
US4942098A (en) * | 1987-03-26 | 1990-07-17 | Sumitomo Special Metals, Co., Ltd. | Corrosion resistant permanent magnet |
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 |
JPH0283905A (ja) * | 1988-09-20 | 1990-03-26 | Sumitomo Special Metals Co Ltd | 耐食性永久磁石およびその製造方法 |
JP2596835B2 (ja) * | 1989-08-04 | 1997-04-02 | 新日本製鐵株式会社 | 希土類系異方性粉末および希土類系異方性磁石 |
JP3121824B2 (ja) * | 1990-02-14 | 2001-01-09 | ティーディーケイ株式会社 | 焼結永久磁石 |
EP0539592B1 (en) * | 1990-07-16 | 1995-07-05 | Aura Systems, Inc. | Magnetic material |
US5288339A (en) * | 1990-07-25 | 1994-02-22 | Siemens Aktiengesellschaft | Process for the production of magnetic material based on the Sm-Fe-N system of elements |
DE4025277A1 (de) * | 1990-08-09 | 1992-02-13 | Siemens Ag | Verfahren zur herstellung eines anisotropen magnetmaterials auf basis des stoffsystems sm-fe-n |
DE4025278A1 (de) * | 1990-08-09 | 1992-02-13 | Siemens Ag | Verfahren zur herstellung eines formkoerpers aus einem anisotropen magnetwerkstoff auf basis des stoffsystems sm-fe-n |
WO1993020567A1 (en) * | 1992-04-02 | 1993-10-14 | Tovarischestvo S Ogranichennoi Otvetstvennostju 'magran' | Permanent magnet |
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 |
US6332933B1 (en) * | 1997-10-22 | 2001-12-25 | Santoku Corporation | Iron-rare earth-boron-refractory metal magnetic nanocomposites |
US6319336B1 (en) | 1998-07-29 | 2001-11-20 | Dowa Mining Co., Ltd. | Permanent magnet alloy having improved heat resistance and process for production thereof |
BRPI0506147B1 (pt) * | 2004-10-19 | 2020-10-13 | Shin-Etsu Chemical Co., Ltd | método para preparar um material de ímã permanente de terra rara |
KR101378089B1 (ko) * | 2007-05-02 | 2014-03-27 | 히다찌긴조꾸가부시끼가이사 | R-t-b계 소결 자석 |
CN101689416B (zh) * | 2007-05-02 | 2012-10-03 | 日立金属株式会社 | R-t-b系烧结磁体 |
CN101154489B (zh) * | 2007-08-31 | 2010-09-29 | 钢铁研究总院 | 抗冲击铁基稀土永磁体及其制备方法 |
CN102067249B (zh) * | 2008-06-13 | 2014-07-30 | 日立金属株式会社 | R-T-Cu-Mn-B系烧结磁铁 |
AU2014281646A1 (en) | 2013-06-17 | 2016-02-11 | Urban Mining Technology Company, Llc | Magnet recycling to create Nd-Fe-B magnets with improved or restored magnetic performance |
US9336932B1 (en) | 2014-08-15 | 2016-05-10 | Urban Mining Company | Grain boundary engineering |
Family Cites Families (21)
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 |
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 |
US4851058A (en) * | 1982-09-03 | 1989-07-25 | General Motors Corporation | High energy product rare earth-iron magnet alloys |
EP0106948B1 (en) * | 1982-09-27 | 1989-01-25 | Sumitomo Special Metals Co., Ltd. | Permanently magnetizable alloys, magnetic materials and permanent magnets comprising febr or (fe,co)br (r=vave earth) |
US4597938A (en) * | 1983-05-21 | 1986-07-01 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet 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 |
JPH08440B2 (ja) * | 1991-10-29 | 1996-01-10 | アキレス株式会社 | 射出成形布靴の製造方法 |
-
1983
- 1983-08-04 JP JP58141850A patent/JPS6034005A/ja active Granted
- 1983-09-16 CA CA000436893A patent/CA1280012C/en not_active Expired - Lifetime
- 1983-09-23 EP EP83109500A patent/EP0134304B2/en not_active Expired - Lifetime
- 1983-09-23 DE DE8383109500T patent/DE3372424D1/de not_active Expired
-
1988
- 1988-02-29 US US07/165,371 patent/US4859255A/en not_active Expired - Lifetime
-
1990
- 1990-07-02 SG SG48690A patent/SG48690G/en unknown
- 1990-08-30 HK HK686/90A patent/HK68690A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1280012C (en) | 1991-02-12 |
US4859255A (en) | 1989-08-22 |
EP0134304B2 (en) | 1992-02-26 |
JPH0510807B2 (xx) | 1993-02-10 |
DE3372424D1 (en) | 1987-08-13 |
EP0134304B1 (en) | 1987-07-08 |
EP0134304A1 (en) | 1985-03-20 |
SG48690G (en) | 1991-02-14 |
JPS6034005A (ja) | 1985-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |