DE68921422D1 - Verfahren zur Herstellung eines polaren anisotropen Magnetes aus seltenen Erden. - Google Patents
Verfahren zur Herstellung eines polaren anisotropen Magnetes aus seltenen Erden.Info
- Publication number
- DE68921422D1 DE68921422D1 DE68921422T DE68921422T DE68921422D1 DE 68921422 D1 DE68921422 D1 DE 68921422D1 DE 68921422 T DE68921422 T DE 68921422T DE 68921422 T DE68921422 T DE 68921422T DE 68921422 D1 DE68921422 D1 DE 68921422D1
- Authority
- DE
- Germany
- Prior art keywords
- production
- rare earths
- anisotropic magnet
- polar anisotropic
- polar
- 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
- 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
-
- 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
- H01F41/0273—Imparting anisotropy
- H01F41/028—Radial anisotropy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63293406A JPH02139907A (ja) | 1988-11-18 | 1988-11-18 | 極異方性希土類磁石の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68921422D1 true DE68921422D1 (de) | 1995-04-06 |
DE68921422T2 DE68921422T2 (de) | 1995-09-14 |
Family
ID=17794359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68921422T Expired - Fee Related DE68921422T2 (de) | 1988-11-18 | 1989-11-17 | Verfahren zur Herstellung eines polaren anisotropen Magnetes aus seltenen Erden. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4990306A (de) |
EP (1) | EP0369462B1 (de) |
JP (1) | JPH02139907A (de) |
DE (1) | DE68921422T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3008615B2 (ja) * | 1991-11-15 | 2000-02-14 | 大同特殊鋼株式会社 | ラジアル異方性リング磁石及びその製造方法 |
FR2686730B1 (fr) * | 1992-01-23 | 1994-11-04 | Aimants Ugimag Sa | Methode de reglage de l'induction remanente d'un aimant fritte et produit ainsi obtenu. |
JP2756471B2 (ja) * | 1993-03-12 | 1998-05-25 | セイコーインスツルメンツ株式会社 | ラジアル配向磁石の製造方法およびラジアル配向磁石 |
US5666635A (en) * | 1994-10-07 | 1997-09-09 | Sumitomo Special Metals Co., Ltd. | Fabrication methods for R-Fe-B permanent magnets |
JP3132393B2 (ja) * | 1996-08-09 | 2001-02-05 | 日立金属株式会社 | R−Fe−B系ラジアル異方性焼結リング磁石の製造方法 |
US6157099A (en) * | 1999-01-15 | 2000-12-05 | Quantum Corporation | Specially oriented material and magnetization of permanent magnets |
KR100424142B1 (ko) * | 2000-05-31 | 2004-03-24 | 한국표준과학연구원 | 희토류계 영구자석의 제조방법 |
WO2003086687A1 (fr) * | 2002-04-12 | 2003-10-23 | Sumitomo Special Metals Co., Ltd. | Procede permettant de mouler a la presse de la poudre d'alliage de terre rare, et procede pour produire un objet fritte en alliage de terre rare |
TWI298892B (en) * | 2002-08-29 | 2008-07-11 | Shinetsu Chemical Co | Radial anisotropic ring magnet and method of manufacturing the ring magnet |
US7771497B1 (en) | 2005-01-19 | 2010-08-10 | Greatbatch Ltd. | Method of using cyclic pressure to increase the planarity of SVO/current collector/CFX electrodes for use in lithium electrochemical cells |
US7648122B2 (en) | 2005-08-22 | 2010-01-19 | Labor Saving Systems, Ltd. | Line retrieval system and method |
DE102014103210B4 (de) * | 2013-03-15 | 2020-03-19 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Herstellen von nd-fe-b-magneten unter verwendung von heisspressen mit verringertem dysprosium oder terbium |
US10867729B2 (en) | 2015-03-24 | 2020-12-15 | Nitto Denko Corporation | Method for producing sintered body that forms rare-earth permanent magnet and has non-parallel easy magnetization axis orientation |
WO2017173186A1 (en) * | 2016-03-30 | 2017-10-05 | Advanced Magnet Lab, Inc. | Method of manufacturing permanent magnets |
JP7356003B2 (ja) * | 2018-09-27 | 2023-10-04 | 日亜化学工業株式会社 | 極異方性環状ボンド磁石成形体用金型の製造方法 |
US11651893B2 (en) | 2018-09-27 | 2023-05-16 | Nichia Corporation | Method of preparing molds for polar anisotropic ring-shaped bonded magnet molded articles |
CN110136916B (zh) * | 2019-06-11 | 2021-01-26 | 深圳市瑞达美磁业有限公司 | 一种辐射取向实心圆柱状磁体及其生产方法及设备 |
CN113977856B (zh) * | 2021-10-22 | 2024-01-05 | 杭州千石科技有限公司 | 一种圆环形注塑磁体的电磁场辐射取向装置 |
FR3132975A1 (fr) * | 2022-02-18 | 2023-08-25 | Safran | Procede de fabrication d’un aimant multipolaire a flux oriente |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE527601A (de) * | 1953-04-11 | |||
JPS59216453A (ja) * | 1983-05-20 | 1984-12-06 | Hitachi Metals Ltd | 円筒状永久磁石の製造方法 |
FR2578872B1 (fr) * | 1985-03-14 | 1987-04-10 | Viafrance Sa | Outil de moulage tracte pour la realisation de dalles de beton sur le sol |
JPS61241905A (ja) * | 1985-04-18 | 1986-10-28 | Shin Etsu Chem Co Ltd | 異方性永久磁石の製造方法 |
US4678634A (en) * | 1985-04-18 | 1987-07-07 | Shin-Etsu Chemical Co., Ltd. | Method for the preparation of an anisotropic sintered permanent magnet |
JPS62224916A (ja) * | 1986-03-27 | 1987-10-02 | Seiko Epson Corp | 希土類磁石の製造方法 |
DE3779481T2 (de) * | 1986-04-15 | 1992-12-24 | Tdk Corp | Dauermagnet und verfahren zu seiner herstellung. |
EP0289599B1 (de) * | 1986-06-27 | 1992-04-01 | Namiki Precision Jewel Co., Ltd. | Verfahren zur herstellung von dauermagneten |
JPH0828293B2 (ja) * | 1987-04-07 | 1996-03-21 | 日立金属株式会社 | 円筒状永久磁石、それを用いたモータ及びその製造方法 |
US4888506A (en) * | 1987-07-09 | 1989-12-19 | Hitachi Metals, Ltd. | Voice coil-type linear motor |
-
1988
- 1988-11-18 JP JP63293406A patent/JPH02139907A/ja active Pending
-
1989
- 1989-11-17 DE DE68921422T patent/DE68921422T2/de not_active Expired - Fee Related
- 1989-11-17 EP EP89121303A patent/EP0369462B1/de not_active Expired - Lifetime
- 1989-11-17 US US07/437,561 patent/US4990306A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE68921422T2 (de) | 1995-09-14 |
JPH02139907A (ja) | 1990-05-29 |
EP0369462B1 (de) | 1995-03-01 |
US4990306A (en) | 1991-02-05 |
EP0369462A1 (de) | 1990-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |