ES8707373A1 - Un metodo para producir un cuerpo uniforme de iman permanen-te - Google Patents
Un metodo para producir un cuerpo uniforme de iman permanen-teInfo
- Publication number
- ES8707373A1 ES8707373A1 ES546960A ES546960A ES8707373A1 ES 8707373 A1 ES8707373 A1 ES 8707373A1 ES 546960 A ES546960 A ES 546960A ES 546960 A ES546960 A ES 546960A ES 8707373 A1 ES8707373 A1 ES 8707373A1
- Authority
- ES
- Spain
- Prior art keywords
- producing
- permanent magnet
- low coercivity
- coercivity regions
- regions
- 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
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
- H01F1/0576—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 pressed, e.g. hot working
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Abstract
METODO PARA PRODUCIR UN CUERPO UNITARIO DE IMAN PERMANENTE. COMPRENDE: A) TENSAR EN CALIENTE PARTICULAS QUE COMPRENDEN HIERRO, PRASEODIMIO, NEODIMIO Y BORO, A TEMPERATURA DE 700JC Y PRESION SUFICIENTE PARA FORMAR UN CUERPO DENSIFICADO CON DOS POSICIONES DE ESPESOR DIFERENTE; Y B) TRATAR EN CALIENTE RAPIDAMENTE EL CUERPO DE MODO NO UNIFORME PARA REDUCIR EL ESPESOR DE LA MASGUESA Y PRODUCIR LAS DOS REGIONES DEL CUERPO, PARA OBTENER UN IMAN CON UN BORDE QUE TENGA UNA MAYOR COERCITIVIDAD APARENTE QUE UNA REGION CENTRAL DOYADA CON UNA MAYOR REMANENCIA QUE EL BORDE. ELLO DA LUGAR A UN IMAN POLAR CURVADO PARA UN MOTOR ELECTRICO QUE COMPRENDE DOS REGIONES SEPARADAS POR UNA DIMENSION SUPERFICIAL DEL CUERPO Y QUE DIFIEREN EN PROPIEDADES MAGNETICAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65062384A | 1984-09-14 | 1984-09-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES546960A0 ES546960A0 (es) | 1987-07-16 |
ES8707373A1 true ES8707373A1 (es) | 1987-07-16 |
Family
ID=24609632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES546960A Expired ES8707373A1 (es) | 1984-09-14 | 1985-09-13 | Un metodo para producir un cuerpo uniforme de iman permanen-te |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0174735B1 (es) |
JP (1) | JPS6174305A (es) |
AU (1) | AU580618B2 (es) |
BR (1) | BR8504369A (es) |
CA (1) | CA1244322A (es) |
DE (1) | DE3584061D1 (es) |
ES (1) | ES8707373A1 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1244322A (en) * | 1984-09-14 | 1988-11-08 | Robert W. Lee | Hot pressed permanent magnet having high and low coercivity regions |
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 |
JP2530641B2 (ja) * | 1986-03-20 | 1996-09-04 | 日立金属株式会社 | 磁気異方性ボンド磁石、それに用いる磁粉及びその製造方法 |
IT1206056B (it) * | 1986-06-20 | 1989-04-05 | Seiko Epson Corp | Procedimento per la preparazione di magneti permanenti e prodotto ottenuto |
US4983232A (en) * | 1987-01-06 | 1991-01-08 | Hitachi Metals, Ltd. | Anisotropic magnetic powder and magnet thereof and method of producing same |
KR900006533B1 (ko) * | 1987-01-06 | 1990-09-07 | 히다찌 긴조꾸 가부시끼가이샤 | 이방성 자성분말과 이의 자석 및 이의 제조방법 |
US5213631A (en) * | 1987-03-02 | 1993-05-25 | Seiko Epson Corporation | Rare earth-iron system permanent magnet and process for producing the same |
EP0302947B1 (en) * | 1987-03-02 | 1994-06-08 | Seiko Epson Corporation | Rare earth element-iron base permanent magnet and process for its production |
US4888506A (en) * | 1987-07-09 | 1989-12-19 | Hitachi Metals, Ltd. | Voice coil-type linear motor |
JPH07105301B2 (ja) * | 1987-09-10 | 1995-11-13 | 日立金属株式会社 | 磁気異方性Nd―Fe―B磁石材の製法 |
JPS6472502A (en) * | 1987-09-11 | 1989-03-17 | Hitachi Metals Ltd | Permanent magnet for accelerating particle beam |
US4859410A (en) * | 1988-03-24 | 1989-08-22 | General Motors Corporation | Die-upset manufacture to produce high volume fractions of RE-Fe-B type magnetically aligned material |
JP3037699B2 (ja) * | 1988-09-30 | 2000-04-24 | 日立金属株式会社 | 耐割れ性及び配向性を改善した温間加工磁石ならびにその製造方法 |
US4952251A (en) * | 1989-05-23 | 1990-08-28 | Hitachi Metals, Ltd. | Magnetically anisotropic hotworked magnet and method of producing same |
US5098486A (en) * | 1989-05-23 | 1992-03-24 | Hitachi Metals, Ltd. | Magnetically anisotropic hotworked magnet and method of producing same |
JP5707934B2 (ja) * | 2010-12-27 | 2015-04-30 | トヨタ自動車株式会社 | 異方性永久磁石の製造方法 |
JP6330438B2 (ja) * | 2014-04-09 | 2018-05-30 | 信越化学工業株式会社 | 希土類焼結磁石の製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CS213750B1 (en) * | 1979-08-03 | 1982-04-09 | Vaclav Landa | Method of making the anizotropic permanent magnets |
GB2112578B (en) * | 1981-07-14 | 1986-03-05 | Hitachi Metals Ltd | Field composite permanent magnet and method of producing the same |
JPS592555A (ja) * | 1982-06-28 | 1984-01-09 | Hitachi Ltd | 永久磁石界磁直流機 |
EP0108474B2 (en) * | 1982-09-03 | 1995-06-21 | General Motors Corporation | RE-TM-B alloys, method for their production and permanent magnets containing such alloys |
CA1216623A (en) * | 1983-05-09 | 1987-01-13 | John J. Croat | Bonded rare earth-iron magnets |
CA1244322A (en) * | 1984-09-14 | 1988-11-08 | Robert W. Lee | Hot pressed permanent magnet having high and low coercivity regions |
-
1985
- 1985-07-12 CA CA000486721A patent/CA1244322A/en not_active Expired
- 1985-08-09 DE DE8585305656T patent/DE3584061D1/de not_active Expired - Fee Related
- 1985-08-09 EP EP19850305656 patent/EP0174735B1/en not_active Expired
- 1985-08-21 AU AU46487/85A patent/AU580618B2/en not_active Ceased
- 1985-09-10 BR BR8504369A patent/BR8504369A/pt not_active IP Right Cessation
- 1985-09-13 ES ES546960A patent/ES8707373A1/es not_active Expired
- 1985-09-14 JP JP20256385A patent/JPS6174305A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3584061D1 (de) | 1991-10-17 |
EP0174735A3 (en) | 1988-01-20 |
EP0174735B1 (en) | 1991-09-11 |
BR8504369A (pt) | 1986-07-08 |
ES546960A0 (es) | 1987-07-16 |
EP0174735A2 (en) | 1986-03-19 |
JPH0315806B2 (es) | 1991-03-04 |
JPS6174305A (ja) | 1986-04-16 |
AU580618B2 (en) | 1989-01-19 |
CA1244322A (en) | 1988-11-08 |
AU4648785A (en) | 1986-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |
Effective date: 19960506 |