DE3789829D1 - Seltene Erden-Eisenmagnet und Herstellungsverfahren. - Google Patents
Seltene Erden-Eisenmagnet und Herstellungsverfahren.Info
- Publication number
- DE3789829D1 DE3789829D1 DE3789829T DE3789829T DE3789829D1 DE 3789829 D1 DE3789829 D1 DE 3789829D1 DE 3789829 T DE3789829 T DE 3789829T DE 3789829 T DE3789829 T DE 3789829T DE 3789829 D1 DE3789829 D1 DE 3789829D1
- Authority
- DE
- Germany
- Prior art keywords
- manufacturing process
- rare earth
- earth iron
- iron magnet
- magnet
- 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.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- 229910052742 iron Inorganic materials 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910052761 rare earth metal Inorganic materials 0.000 title 1
- 150000002910 rare earth metals Chemical class 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
- H01F1/0572—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 with a protective layer
-
- 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
- H01F1/0578—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 bonded together
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
- Y10T428/12097—Nonparticulate component encloses particles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13148886A JPS62287005A (ja) | 1986-06-06 | 1986-06-06 | 磁石 |
JP61131487A JP2764119B2 (ja) | 1986-06-06 | 1986-06-06 | 磁石およびその製造方法 |
JP15445686A JPS639907A (ja) | 1986-07-01 | 1986-07-01 | 希土類鉄系磁石 |
JP15575186A JPS6312111A (ja) | 1986-07-02 | 1986-07-02 | 磁石 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3789829D1 true DE3789829D1 (de) | 1994-06-23 |
DE3789829T2 DE3789829T2 (de) | 1994-09-01 |
Family
ID=27471617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3789829T Expired - Fee Related DE3789829T2 (de) | 1986-06-06 | 1987-06-04 | Seltene Erden-Eisenmagnet und Herstellungsverfahren. |
Country Status (3)
Country | Link |
---|---|
US (2) | US4863805A (de) |
EP (1) | EP0248665B1 (de) |
DE (1) | DE3789829T2 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0248665B1 (de) * | 1986-06-06 | 1994-05-18 | Seiko Instruments Inc. | Seltene Erden-Eisenmagnet und Herstellungsverfahren |
US5006045A (en) * | 1987-12-24 | 1991-04-09 | Seiko Epson Corporation | Scroll compressor with reverse rotation speed limiter |
JPH0614485B2 (ja) * | 1988-05-25 | 1994-02-23 | 大八化学工業株式会社 | 表面改質磁性粉末およびそれを含有するボンド磁石組成物 |
EP0361516B1 (de) * | 1988-09-30 | 1996-05-01 | Canon Kabushiki Kaisha | Verfahren zur Herstellung einer Röntgenstrahlmasken-Struktur |
US5126317A (en) * | 1988-09-30 | 1992-06-30 | Eastman Kodak Company | Bearing system employing a superconductor element |
US4892863A (en) * | 1988-09-30 | 1990-01-09 | Eastman Kodak Company | Electric machinery employing a superconductor element |
US5154978A (en) * | 1989-03-22 | 1992-10-13 | Tdk Corporation | Highly corrosion-resistant rare-earth-iron magnets |
JP3047239B2 (ja) * | 1989-04-14 | 2000-05-29 | 日立金属株式会社 | 温間加工磁石及びその製造方法 |
JPH02310395A (ja) * | 1989-05-26 | 1990-12-26 | Johoku Riken Kogyo:Kk | ネオジウム―鉄―ボロン系焼結磁石の防食方法 |
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 |
DE4007533C1 (de) * | 1990-03-09 | 1991-08-29 | Magnetfabrik Schramberg Gmbh & Co, 7230 Schramberg, De | |
JPH04127405A (ja) * | 1990-09-18 | 1992-04-28 | Kanegafuchi Chem Ind Co Ltd | 高耐蝕性永久磁石及びその製造方法並びに高耐蝕性ボンド磁石の製造方法 |
DE69220519T2 (de) * | 1991-03-04 | 1998-02-19 | Toda Kogyo Corp | Verfahren zur Plattierung eines Verbundmagneten sowie Verbundmagnet mit einem Metallüberzug |
US5360675A (en) * | 1992-05-14 | 1994-11-01 | Praxair S.T. Technology, Inc. | Molten zinc resistant alloy and its manufacturing method |
FR2717002B1 (fr) * | 1994-03-02 | 1996-04-26 | Alsthom Cge Alcatel | Procédé pour la confection d'un matériau magnétique sous forme solide à partir d'une poudre de nitrure intermétallique du type Sm2 Fe17 N3-x. |
JPH07272913A (ja) * | 1994-03-30 | 1995-10-20 | Kawasaki Teitoku Kk | 永久磁石原料、その製造法及び永久磁石 |
DE19751710A1 (de) * | 1997-11-21 | 1999-05-27 | Leybold Systems Gmbh | Magnetkörper mit Korrosionsschutzbeschichtung |
US6174609B1 (en) | 1997-12-19 | 2001-01-16 | Shin-Etsu Chemical Co., Ltd. | Rare earth-based permanent magnet of high corrosion resistance |
DE29801584U1 (de) * | 1998-01-30 | 1998-04-16 | Siemens Ag | Elektromagnetisches Auslöserelais, insbesondere für Fehlerstromschutzeinrichtungen |
DE19962232B4 (de) * | 1999-12-22 | 2006-05-04 | Vacuumschmelze Gmbh | Verfahren zur Herstellung stabförmiger Dauermagnete |
DE10131474A1 (de) * | 2001-06-29 | 2003-05-28 | Bosch Gmbh Robert | Elektrische Maschine |
KR100480362B1 (ko) * | 2002-01-30 | 2005-04-06 | 한국하니웰 주식회사 | NdFe 마그네트를 가지는 브이알 센서 |
DE10322871A1 (de) * | 2003-05-21 | 2004-12-16 | Kennametal Widia Gmbh & Co.Kg | Sinterkörper und Verfahren zu seiner Herstellung |
ES2842882T3 (es) * | 2018-05-08 | 2021-07-15 | Abiomed Europe Gmbh | Imán permanente resistente a la corrosión y bomba de sangre intravascular que comprende el imán |
CN111394655A (zh) * | 2020-04-03 | 2020-07-10 | 康沌重机(苏州)有限公司 | 一种高强度耐腐蚀船用起重机钢构件及其制备工艺 |
CN112002512B (zh) * | 2020-10-29 | 2021-03-02 | 宁波合力磁材技术有限公司 | 一种防腐蚀的烧结钕铁硼磁材及其制备工艺 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063971A (en) * | 1969-08-08 | 1977-12-20 | Th. Goldschmidt Ag | Method of increasing the coercive force of pulverized rare earth-cobalt alloys |
US3892601A (en) * | 1973-06-22 | 1975-07-01 | Gen Electric | Coated air-stable cobalt-rare earth alloy particles and method |
US3892600A (en) * | 1973-06-22 | 1975-07-01 | Gen Electric | Annealed coated air-stable cobalt-rare earth alloy particles |
US3892599A (en) * | 1973-06-22 | 1975-07-01 | Gen Electric | Air-stable compact of cobalt-rare earth alloy particles and method |
US3998669A (en) * | 1974-09-20 | 1976-12-21 | Th. Goldschmidt Ag | Permanent magnet on the basis of cobalt-rare earth alloys and method for its production |
US4289549A (en) * | 1978-10-31 | 1981-09-15 | Kabushiki Kaisha Suwa Seikosha | Resin bonded permanent magnet composition |
JPS5766604A (en) * | 1980-10-13 | 1982-04-22 | Toshiba Corp | Surface treatment for rare-earth cobalt magnet |
JPS58223437A (ja) * | 1982-06-18 | 1983-12-26 | Tdk Corp | 分散性を改良した無機粉末 |
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 |
US4792367A (en) * | 1983-08-04 | 1988-12-20 | General Motors Corporation | Iron-rare earth-boron permanent |
JPS6054406A (ja) * | 1983-09-03 | 1985-03-28 | Sumitomo Special Metals Co Ltd | 耐酸化性のすぐれた永久磁石 |
JPS6063902A (ja) * | 1983-09-17 | 1985-04-12 | Sumitomo Special Metals Co Ltd | 耐酸化性のすぐれた永久磁石 |
DE3575231D1 (de) * | 1984-02-28 | 1990-02-08 | Sumitomo Spec Metals | Verfahren zur herstellung von permanenten magneten. |
US4558077A (en) * | 1984-03-08 | 1985-12-10 | General Motors Corporation | Epoxy bonded rare earth-iron magnets |
JPS6169866A (ja) * | 1984-09-12 | 1986-04-10 | Polyplastics Co | 複合材料組成物 |
US4689163A (en) * | 1986-02-24 | 1987-08-25 | Matsushita Electric Industrial Co., Ltd. | Resin-bonded magnet comprising a specific type of ferromagnetic powder dispersed in a specific type of resin binder |
EP0248665B1 (de) * | 1986-06-06 | 1994-05-18 | Seiko Instruments Inc. | Seltene Erden-Eisenmagnet und Herstellungsverfahren |
JPS6328844A (ja) * | 1986-07-23 | 1988-02-06 | Toshiba Corp | 永久磁石材料 |
US4834812A (en) * | 1987-11-02 | 1989-05-30 | Union Oil Company Of California | Method for producing polymer-bonded magnets from rare earth-iron-boron compositions |
-
1987
- 1987-06-04 EP EP87304948A patent/EP0248665B1/de not_active Expired - Lifetime
- 1987-06-04 DE DE3789829T patent/DE3789829T2/de not_active Expired - Fee Related
- 1987-06-08 US US07/059,737 patent/US4863805A/en not_active Expired - Lifetime
-
1989
- 1989-06-22 US US07/369,733 patent/US5026518A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0248665A3 (en) | 1988-12-07 |
US4863805A (en) | 1989-09-05 |
DE3789829T2 (de) | 1994-09-01 |
US5026518A (en) | 1991-06-25 |
EP0248665B1 (de) | 1994-05-18 |
EP0248665A2 (de) | 1987-12-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: SII MICRO PARTS LTD., SENDAI-SHI, MIYAGI, JP |