DE68915680D1 - Verfahren zum Herstellen eines Dauermagneten. - Google Patents
Verfahren zum Herstellen eines Dauermagneten.Info
- Publication number
- DE68915680D1 DE68915680D1 DE68915680T DE68915680T DE68915680D1 DE 68915680 D1 DE68915680 D1 DE 68915680D1 DE 68915680 T DE68915680 T DE 68915680T DE 68915680 T DE68915680 T DE 68915680T DE 68915680 D1 DE68915680 D1 DE 68915680D1
- Authority
- DE
- Germany
- Prior art keywords
- density
- making
- permanent magnet
- properties
- 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
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
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8802543 | 1988-10-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68915680D1 true DE68915680D1 (de) | 1994-07-07 |
DE68915680T2 DE68915680T2 (de) | 1994-12-15 |
Family
ID=19853066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68915680T Expired - Fee Related DE68915680T2 (de) | 1988-10-17 | 1989-10-11 | Verfahren zum Herstellen eines Dauermagneten. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4996023A (de) |
EP (1) | EP0365079B1 (de) |
JP (1) | JP2848533B2 (de) |
KR (1) | KR900007004A (de) |
CN (1) | CN1043034A (de) |
AT (1) | ATE106599T1 (de) |
DE (1) | DE68915680T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2780429B2 (ja) * | 1990-03-30 | 1998-07-30 | 松下電器産業株式会社 | 希土類―鉄系磁石の製造方法 |
GB9022033D0 (en) * | 1990-10-10 | 1990-11-21 | Lee Victor C | A method of making a material with permanent magnetic properties |
JP3549382B2 (ja) * | 1997-12-22 | 2004-08-04 | 信越化学工業株式会社 | 希土類元素・鉄・ボロン系永久磁石およびその製造方法 |
DE69938811D1 (de) * | 1998-12-11 | 2008-07-10 | Shinetsu Chemical Co | Herstellungsverfahen eines Seltenerd-Dauermagnets |
JP4415681B2 (ja) * | 2004-01-21 | 2010-02-17 | Tdk株式会社 | 希土類焼結磁石及びその製造方法 |
CN102456478A (zh) * | 2010-10-22 | 2012-05-16 | 北京北方微电子基地设备工艺研究中心有限责任公司 | 磁铁及其加工方法和磁控溅射源 |
CN109881113B (zh) * | 2019-02-24 | 2020-05-19 | 东阳市宏丰磁业有限公司 | 一种复合永磁材料及其制备方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3575231D1 (de) * | 1984-02-28 | 1990-02-08 | Sumitomo Spec Metals | Verfahren zur herstellung von permanenten magneten. |
US4765848A (en) * | 1984-12-31 | 1988-08-23 | Kaneo Mohri | Permanent magnent and method for producing same |
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 |
US4836868A (en) * | 1986-04-15 | 1989-06-06 | Tdk Corporation | Permanent magnet and method of producing same |
DE3783413T2 (de) * | 1986-09-16 | 1993-05-27 | Tokin Corp | Verfahren zur herstellung eines seltenerd-eisen-bor-dauermagneten mit hilfe eines abgeschreckten legierungspuders. |
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 |
US4867809A (en) * | 1988-04-28 | 1989-09-19 | General Motors Corporation | Method for making flakes of RE-Fe-B type magnetically aligned material |
US4881985A (en) * | 1988-08-05 | 1989-11-21 | General Motors Corporation | Method for producing anisotropic RE-FE-B type magnetically aligned material |
-
1989
- 1989-10-11 AT AT89202564T patent/ATE106599T1/de not_active IP Right Cessation
- 1989-10-11 DE DE68915680T patent/DE68915680T2/de not_active Expired - Fee Related
- 1989-10-11 EP EP89202564A patent/EP0365079B1/de not_active Expired - Lifetime
- 1989-10-14 CN CN89108794A patent/CN1043034A/zh active Pending
- 1989-10-16 JP JP1266367A patent/JP2848533B2/ja not_active Expired - Fee Related
- 1989-10-16 KR KR1019890014825A patent/KR900007004A/ko not_active Application Discontinuation
- 1989-10-16 US US07/421,863 patent/US4996023A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0365079A1 (de) | 1990-04-25 |
KR900007004A (ko) | 1990-05-09 |
CN1043034A (zh) | 1990-06-13 |
EP0365079B1 (de) | 1994-06-01 |
ATE106599T1 (de) | 1994-06-15 |
DE68915680T2 (de) | 1994-12-15 |
JPH02156038A (ja) | 1990-06-15 |
JP2848533B2 (ja) | 1999-01-20 |
US4996023A (en) | 1991-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: YBM MAGNEX,INC., NEWTOWN, PA., US |
|
8328 | Change in the person/name/address of the agent |
Free format text: DERZEIT KEIN VERTRETER BESTELLT |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: THE MORGAN CRUCIBLE COMPANY PLC, WINDSOR, BERKSHIR |
|
8328 | Change in the person/name/address of the agent |
Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |