DE68921422T2 - 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
DE68921422T2
DE68921422T2 DE68921422T DE68921422T DE68921422T2 DE 68921422 T2 DE68921422 T2 DE 68921422T2 DE 68921422 T DE68921422 T DE 68921422T DE 68921422 T DE68921422 T DE 68921422T DE 68921422 T2 DE68921422 T2 DE 68921422T2
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
Application number
DE68921422T
Other languages
English (en)
Other versions
DE68921422D1 (de
Inventor
Ken Ohashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of DE68921422D1 publication Critical patent/DE68921422D1/de
Application granted granted Critical
Publication of DE68921422T2 publication Critical patent/DE68921422T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Powder Metallurgy (AREA)
DE68921422T 1988-11-18 1989-11-17 Verfahren zur Herstellung eines polaren anisotropen Magnetes aus seltenen Erden. Expired - Fee Related DE68921422T2 (de)

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 DE68921422D1 (de) 1995-04-06
DE68921422T2 true 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)

* Cited by examiner, † Cited by third party
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
US7045092B2 (en) * 2002-04-12 2006-05-16 Neomax Co., Ltd. Method for press molding rare earth alloy powder and method for producing sintered object of rare earth alloy
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
EP3276645B1 (de) * 2015-03-24 2022-05-04 Nitto Denko Corporation Verfahren zur herstellung eines gesinterten körpers mit bildung eines seltenerd-permanentmagneten und nichtparalleler achsenorientierung mit leichter magnetisierung
CN109155174A (zh) * 2016-03-30 2019-01-04 先锋磁体实验室有限公司 制造永磁体的方法
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL93759C (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
US4678634A (en) * 1985-04-18 1987-07-07 Shin-Etsu Chemical Co., Ltd. Method for the preparation of an anisotropic sintered permanent magnet
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
JPS62224916A (ja) * 1986-03-27 1987-10-02 Seiko Epson Corp 希土類磁石の製造方法
US4836868A (en) * 1986-04-15 1989-06-06 Tdk Corporation Permanent magnet and method of producing same
KR960005323B1 (ko) * 1986-06-27 1996-04-23 나미기 세이미쓰 호오세키 가부시기가이샤 영구자석의 제조방법
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

Also Published As

Publication number Publication date
EP0369462B1 (de) 1995-03-01
JPH02139907A (ja) 1990-05-29
DE68921422D1 (de) 1995-04-06
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