DE101552T1 - Magnetische materialien und permanente magnete. - Google Patents

Magnetische materialien und permanente magnete.

Info

Publication number
DE101552T1
DE101552T1 DE198383106573T DE83106573T DE101552T1 DE 101552 T1 DE101552 T1 DE 101552T1 DE 198383106573 T DE198383106573 T DE 198383106573T DE 83106573 T DE83106573 T DE 83106573T DE 101552 T1 DE101552 T1 DE 101552T1
Authority
DE
Germany
Prior art keywords
permanent magnet
rare earth
earth element
intermetallic compound
element including
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.)
Pending
Application number
DE198383106573T
Other languages
English (en)
Inventor
Setsuo Hanazonodanchi 14-106 Ukyo-Ku Kyoto Fujimura
Yutaka Ibaraki-Shi Osaka-Fu Matsuura
Masato Nagaokakyo-Shi Kyoto-Fu Sagawa
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.)
Proterial Ltd
Original Assignee
Sumitomo Special Metals 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27563324&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE101552(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP57145072A external-priority patent/JPS5946008A/ja
Priority claimed from JP57200204A external-priority patent/JPS5989401A/ja
Priority claimed from JP58005814A external-priority patent/JPS59132105A/ja
Priority claimed from JP58037898A external-priority patent/JPS59163804A/ja
Priority claimed from JP58037896A external-priority patent/JPS59163802A/ja
Priority claimed from JP58084859A external-priority patent/JPS59211558A/ja
Priority claimed from JP58094876A external-priority patent/JPH0778269B2/ja
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Publication of DE101552T1 publication Critical patent/DE101552T1/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0433—Nickel- or cobalt-based alloys
    • C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)

Claims (10)

  1. S 4430-EP München, 8.8.1988
    EP 83 106 573.5-2207
    PATENTANSPRÜCHE
    . Magnetisches Material mit einem Gehalt an Fe, B und R, wobei R mindestens ein Seltenerdelement einschließlich Y ist, worin eine Hauptphase aus mindestens einer intermetallischen Verbindung des Typs Fe-B-R mit einer im wesentlichen dem tetragonalen System zuzuordnenden Kristallstruktur gebildet ist.
  2. 2. Gesintertes magnetisches Material mit einer Hauptphase, die aus mindestens einer intermetallischen Verbindung gebildet ist, die im wesentlichen aus 8 bis 30 % R, wobei R mindestens ein Seltenerdelement einschließlich Y ist, 2 bis 28 % B, jeweils in Atom-% angegeben, und Rest Fe mit Verunreinigungen besteht.
  3. 3. Gesintertes magnetisches Material mit einer Hauptphase, die aus mindestens einer intermetallischen Verbindung gebildet ist, die im wesentlichen dem tetragonalen System zugehört und hauptsächlich aus 8 bis 30 % R, wobei R mindestens ein Seltenerdelement einschließlich Y ist, 2 bis 28 % B, jeweils in Atom-% angegeben, und Rest Fe mit Verunreinigungen besteht.
    ·'" ■■■ " : 01Ü15b2
  4. 4. Gesinterter anisotroper Permanentmagnet, bestehend im wesentlichen aus 8 bis 30 % R, wobei R mindestens ein Seltenerdelement einschließlich Y ist, 2 bis 28 % B, jeweils in Atom-% angegeben, und Rest Fe mit Verunreinigungen.
  5. 5. Gesinterter anisotroper Permanentmagnet mit einer Hauptphase, die aus mindestens einer intermetallischen Verbindung des Typs Fe-B-R mit einer im wesentlichen dem tetragonalen System zuzuordnenden Kristallstruktur gebildet ist und hauptsächlich aus 8 bis 30 % R, wobei R mindestens ein Seltenerdelement einschließlich Y ist, 2 bis 28 % B, jeweils in Atom-% angegeben, und Rest Fe mit Verunreinigungen besteht.
  6. 6. Magnetisches Material nach Anspruch 1 oder 3, bei dem das im wesentlichen tetragonale System mit einem Anteil von nicht weniger als 50 Vol-% vorliegt.
  7. 7. Permanentmagnet nach Anspruch 5, bei dem das im wesentlichen tetragonale System mit einem Anteil von nicht weniger als 50 Vol-% vorliegt.
  8. 8. Permanentmagnet nach Anspruch 7, der nicht weniger als 1 Vol-% an nichtmagnetischen Phasen einer intermetallischen Verbindung enthält.
  9. 9. Permanentmagnet nach Anspruch 4 oder 5, bei dem die mittlere Kristallkorngröße 1 bis 80 &mgr;&pgr;&igr; beträgt.
  10. 10. Permanentmagnet nach Anspruch 9, bei dem die mitt-5 lere Kristallkorngröße 2 bis 40 &mgr;&pgr;&igr; beträgt.
DE198383106573T 1982-08-21 1983-07-05 Magnetische materialien und permanente magnete. Pending DE101552T1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP57145072A JPS5946008A (ja) 1982-08-21 1982-08-21 永久磁石
JP57200204A JPS5989401A (ja) 1982-11-15 1982-11-15 永久磁石
JP58005814A JPS59132105A (ja) 1983-01-19 1983-01-19 永久磁石用合金
JP58037898A JPS59163804A (ja) 1983-03-08 1983-03-08 永久磁石用合金
JP58037896A JPS59163802A (ja) 1983-03-08 1983-03-08 永久磁石材料
JP58084859A JPS59211558A (ja) 1983-05-14 1983-05-14 永久磁石材料
JP58094876A JPH0778269B2 (ja) 1983-05-31 1983-05-31 永久磁石用希土類・鉄・ボロン系正方晶化合物

Publications (1)

Publication Number Publication Date
DE101552T1 true DE101552T1 (de) 1989-06-22

Family

ID=27563324

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198383106573T Pending DE101552T1 (de) 1982-08-21 1983-07-05 Magnetische materialien und permanente magnete.
DE8383106573T Expired DE3380376D1 (en) 1982-08-21 1983-07-05 Magnetic materials, permanent magnets and methods of making those

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8383106573T Expired DE3380376D1 (en) 1982-08-21 1983-07-05 Magnetic materials, permanent magnets and methods of making those

Country Status (6)

Country Link
US (2) US4770723A (de)
EP (1) EP0101552B2 (de)
CA (1) CA1316375C (de)
DE (2) DE101552T1 (de)
HK (1) HK68290A (de)
SG (1) SG48490G (de)

Families Citing this family (187)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194098A (en) * 1982-08-21 1993-03-16 Sumitomo Special Metals Co., Ltd. Magnetic materials
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
CA1315571C (en) * 1982-08-21 1993-04-06 Masato Sagawa Magnetic materials and permanent magnets
US5466308A (en) * 1982-08-21 1995-11-14 Sumitomo Special Metals Co. Ltd. Magnetic precursor materials for making permanent magnets
CA1277159C (en) * 1983-05-06 1990-12-04 Setsuo Fujimura Isotropic permanent magnets and process for producing same
EP0125347B1 (de) * 1983-05-06 1990-04-18 Sumitomo Special Metals Co., Ltd. Isotrope Magneten und Verfahren zu ihrer Herstellung
US4597938A (en) * 1983-05-21 1986-07-01 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnet materials
JPS6032306A (ja) * 1983-08-02 1985-02-19 Sumitomo Special Metals Co Ltd 永久磁石
US4844754A (en) * 1983-08-04 1989-07-04 General Motors Corporation Iron-rare earth-boron permanent magnets by hot working
US4792367A (en) * 1983-08-04 1988-12-20 General Motors Corporation Iron-rare earth-boron permanent
CA1236381A (en) * 1983-08-04 1988-05-10 Robert W. Lee Iron-rare earth-boron permanent magnets by hot working
EP0144112B1 (de) * 1983-10-26 1989-09-27 General Motors Corporation Magnetische Legierungen mit hohem Energieprodukt aus seltenen Erden, Übergangsmetallen und Bor
DE3587977T2 (de) * 1984-02-28 1995-05-18 Sumitomo Spec Metals Dauermagnete.
US4891078A (en) * 1984-03-30 1990-01-02 Union Oil Company Of California Rare earth-containing magnets
US4585473A (en) * 1984-04-09 1986-04-29 Crucible Materials Corporation Method for making rare-earth element containing permanent magnets
JPS60228652A (ja) * 1984-04-24 1985-11-13 Nippon Gakki Seizo Kk 希土類磁石およびその製法
FR2566758B1 (fr) * 1984-06-29 1990-01-12 Centre Nat Rech Scient Nouveaux hydrures de terre rare/fer/bore et terre rare/cobalt/bore magnetiques, leur procede de fabrication et de fabrication des produits deshydrures pulverulents correspondants, leurs applications
US5055146A (en) * 1984-07-10 1991-10-08 Crucible Materials Corporation Permanent magnet alloy
US4721538A (en) * 1984-07-10 1988-01-26 Crucible Materials Corporation Permanent magnet alloy
EP0175214B2 (de) * 1984-09-14 1993-12-29 Kabushiki Kaisha Toshiba Permanentmagnetische Legierung und Methode zu ihrer Herstellung
USRE32714E (en) * 1984-09-25 1988-07-19 North Carolina State University Method of producing high performance permanent magnets
US4541877A (en) * 1984-09-25 1985-09-17 North Carolina State University Method of producing high performance permanent magnets
US4767450A (en) * 1984-11-27 1988-08-30 Sumitomo Special Metals Co., Ltd. Process for producing the rare earth alloy powders
US4765848A (en) * 1984-12-31 1988-08-23 Kaneo Mohri Permanent magnent and method for producing same
USRE34838E (en) * 1984-12-31 1995-01-31 Tdk Corporation Permanent magnet and method for producing same
CA1271394A (en) * 1985-02-25 1990-07-10 Karen S. Canavan Enhanced remanence permanent magnetic alloy and bodies thereof and method of preparing same
US4898613A (en) * 1985-02-26 1990-02-06 Sumitomo Special Metals Co. Ltd. Rare earth alloy powder used in production of permanent magnets
JPH0789521B2 (ja) * 1985-03-28 1995-09-27 株式会社東芝 希土類鉄系永久磁石
US4588439A (en) * 1985-05-20 1986-05-13 Crucible Materials Corporation Oxygen containing permanent magnet alloy
US4933009A (en) * 1985-06-14 1990-06-12 Union Oil Company Of California Composition for preparing rare earth-iron-boron-permanent magnets
US4952252A (en) * 1985-06-14 1990-08-28 Union Oil Company Of California Rare earth-iron-boron-permanent magnets
US4762574A (en) * 1985-06-14 1988-08-09 Union Oil Company Of California Rare earth-iron-boron premanent magnets
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
FR2586323B1 (fr) * 1985-08-13 1992-11-13 Seiko Epson Corp Aimant permanent a base de terres rares-fer
EP0216254B1 (de) * 1985-09-10 1991-01-02 Kabushiki Kaisha Toshiba Dauermagnet
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
CA1269029A (en) * 1986-01-29 1990-05-15 Peter Vernia Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy
US4769063A (en) * 1986-03-06 1988-09-06 Sumitomo Special Metals Co., Ltd. Method for producing rare earth alloy
JPH07105289B2 (ja) * 1986-03-06 1995-11-13 信越化学工業株式会社 希土類永久磁石の製造方法
EP0242187B1 (de) * 1986-04-15 1992-06-03 TDK Corporation Dauermagnet und Verfahren zu seiner Herstellung
US4747874A (en) * 1986-05-30 1988-05-31 Union Oil Company Of California Rare earth-iron-boron permanent magnets with enhanced coercivity
US4878958A (en) * 1986-05-30 1989-11-07 Union Oil Company Of California Method for preparing rare earth-iron-boron permanent magnets
US4954186A (en) * 1986-05-30 1990-09-04 Union Oil Company Of California Rear earth-iron-boron permanent magnets containing aluminum
EP0248981B1 (de) * 1986-06-12 1993-07-07 Kabushiki Kaisha Toshiba Dauermagnet und Dauermagnetlegierung
US5041171A (en) * 1986-07-18 1991-08-20 U.S. Philips Corporation Hard magnetic material
EP0258609B1 (de) * 1986-07-23 1993-02-03 Hitachi Metals, Ltd. Dauermagnet mit guter thermischer Stabilität
EP0261579B1 (de) * 1986-09-16 1993-01-07 Tokin Corporation Verfahren zur Herstellung eines Seltenerd-Eisen-Bor-Dauermagneten mit Hilfe eines abgeschreckten Legierungspuders
GB2196479B (en) * 1986-10-20 1990-03-28 Philips Electronic Associated Method and apparatus for the manufacture of rare earth transition metal alloy magnets
US4881986A (en) * 1986-11-26 1989-11-21 Tokin Corporation Method for producing a rare earth metal-iron-boron anisotropic sintered magnet from rapidly-quenched rare earth metal-iron-boron alloy ribbon-like flakes
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
US4902360A (en) * 1987-02-04 1990-02-20 Crucible Materials Corporation Permanent magnet alloy for elevated temperature applications
GB2201426B (en) * 1987-02-27 1990-05-30 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
US4942098A (en) * 1987-03-26 1990-07-17 Sumitomo Special Metals, Co., Ltd. Corrosion resistant permanent magnet
US4865915A (en) * 1987-03-31 1989-09-12 Seiko Epson Corporation Resin coated permanent magnet
GB8707905D0 (en) * 1987-04-02 1987-05-07 Univ Birmingham Magnets
US4888506A (en) * 1987-07-09 1989-12-19 Hitachi Metals, Ltd. Voice coil-type linear motor
DE3850001T2 (de) * 1987-08-19 1994-11-03 Mitsubishi Materials Corp Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren.
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
DE3740157A1 (de) * 1987-11-26 1989-06-08 Max Planck Gesellschaft Sintermagnet auf basis von fe-nd-b
JPH01139738A (ja) * 1987-11-27 1989-06-01 Hitachi Metals Ltd 磁気異方性磁石材料の製造方法及びその装置
JP2970809B2 (ja) * 1987-12-28 1999-11-02 信越化学工業株式会社 希土類永久磁石
US4985085A (en) * 1988-02-23 1991-01-15 Eastman Kodak Company Method of making anisotropic magnets
US4892596A (en) * 1988-02-23 1990-01-09 Eastman Kodak Company Method of making fully dense anisotropic high energy magnets
US5000796A (en) * 1988-02-23 1991-03-19 Eastman Kodak Company Anisotropic high energy magnets and a process of preparing the same
JP2741508B2 (ja) * 1988-02-29 1998-04-22 住友特殊金属株式会社 磁気異方性焼結磁石とその製造方法
US5000800A (en) * 1988-06-03 1991-03-19 Masato Sagawa Permanent magnet and method for producing the same
IE891581A1 (en) * 1988-06-20 1991-01-02 Seiko Epson Corp Permanent magnet and a manufacturing method thereof
JPH0283905A (ja) * 1988-09-20 1990-03-26 Sumitomo Special Metals Co Ltd 耐食性永久磁石およびその製造方法
DE68925506T2 (de) * 1988-10-04 1996-09-19 Hitachi Metals Ltd Gebundener R-Fe-B-Magnet und Verfahren zur Herstellung
JP2787580B2 (ja) * 1988-10-06 1998-08-20 眞人 佐川 熱処理性がすぐれたＮｄ−Ｆｅ−Ｂ系焼結磁石
US4931092A (en) * 1988-12-21 1990-06-05 The Dow Chemical Company Method for producing metal bonded magnets
US5244510A (en) * 1989-06-13 1993-09-14 Yakov Bogatin Magnetic materials and process for producing the same
US5122203A (en) * 1989-06-13 1992-06-16 Sps Technologies, Inc. Magnetic materials
US5114502A (en) * 1989-06-13 1992-05-19 Sps Technologies, Inc. Magnetic materials and process for producing the same
US5266128A (en) * 1989-06-13 1993-11-30 Sps Technologies, Inc. Magnetic materials and process for producing the same
US5183630A (en) * 1989-08-25 1993-02-02 Dowa Mining Co., Ltd. Process for production of permanent magnet alloy having improved resistence to oxidation
US5147473A (en) * 1989-08-25 1992-09-15 Dowa Mining Co., Ltd. Permanent magnet alloy having improved resistance to oxidation and process for production thereof
US5269855A (en) * 1989-08-25 1993-12-14 Dowa Mining Co., Ltd. Permanent magnet alloy having improved resistance
DE3928389A1 (de) * 1989-08-28 1991-03-14 Schramberg Magnetfab Permanentmagnet
US5129964A (en) * 1989-09-06 1992-07-14 Sps Technologies, Inc. Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment
GB2238797A (en) * 1989-12-08 1991-06-12 Philips Electronic Associated Manufacture of rare-earth materials and permanent magnets
CA2077654A1 (en) * 1990-03-06 1991-09-07 Paul E. Matthews Powder metallurgy compositions
US5250206A (en) * 1990-09-26 1993-10-05 Mitsubishi Materials Corporation Rare earth element-Fe-B or rare earth element-Fe-Co-B permanent magnet powder excellent in magnetic anisotropy and corrosion resistivity and bonded magnet manufactured therefrom
DE4133214C2 (de) * 1990-10-05 1996-11-07 Hitachi Metals Ltd Aus Eisen-Seltenerdmetall-Legierung bestehendes Dauermagnetmaterial
US5240513A (en) * 1990-10-09 1993-08-31 Iowa State University Research Foundation, Inc. Method of making bonded or sintered permanent magnets
US5242508A (en) * 1990-10-09 1993-09-07 Iowa State University Research Foundation, Inc. Method of making permanent magnets
US5478411A (en) * 1990-12-21 1995-12-26 Provost, Fellows And Scholars Of The College Of The Holy And Undivided Trinity Of Queen Elizabeth Near Dublin Magnetic materials and processes for their production
DE69203405T3 (de) * 1991-01-28 2004-05-06 Mitsubishi Materials Corp. Anisotroper Seltenerd-Magnet.
AT398861B (de) * 1991-02-11 1995-02-27 Boehler Ybbstalwerke Gesinterter permanentmagnet(-werkstoff) sowie verfahren zu dessen herstellung
US5354354A (en) * 1991-10-22 1994-10-11 Th. Goldschmidt Ag Method for producing single-phase, incongruently melting intermetallic phases
US5383978A (en) * 1992-02-15 1995-01-24 Santoku Metal Industry Co., Ltd. Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet
US5427734A (en) * 1992-06-24 1995-06-27 Sumitomo Special Metals Co., Ltd. Process for preparing R-Fe-B type sintered magnets employing the injection molding method
GB9215109D0 (en) * 1992-07-16 1992-08-26 Univ Sheffield Magnetic materials and method of making them
US5403408A (en) * 1992-10-19 1995-04-04 Inland Steel Company Non-uniaxial permanent magnet material
RU2113742C1 (ru) * 1993-07-06 1998-06-20 Сумитомо Спешиал Металз Ко., Лтд. Материалы r-fe-b постоянных магнитов и способы их получения
US5454998A (en) * 1994-02-04 1995-10-03 Ybm Technologies, Inc. Method for producing permanent magnet
US5666635A (en) 1994-10-07 1997-09-09 Sumitomo Special Metals Co., Ltd. Fabrication methods for R-Fe-B permanent magnets
JP2825449B2 (ja) * 1994-10-24 1998-11-18 株式会社東芝 永久磁石の製造方法
US6261386B1 (en) * 1997-06-30 2001-07-17 Wisconsin Alumni Research Foundation Nanocrystal dispersed amorphous alloys
US6332933B1 (en) 1997-10-22 2001-12-25 Santoku Corporation Iron-rare earth-boron-refractory metal magnetic nanocomposites
JPH11307327A (ja) * 1998-04-22 1999-11-05 Sanei Kasei Kk 永久磁石用組成物
CN1265401C (zh) 1998-07-13 2006-07-19 株式会社三德 制造纳米复合磁性材料的方法以及制造粘结磁体的方法
TW383249B (en) 1998-09-01 2000-03-01 Sumitomo Spec Metals Cutting method for rare earth alloy by annular saw and manufacturing for rare earth alloy board
CN1187152C (zh) * 1999-03-03 2005-02-02 株式会社新王磁材 稀土磁铁烧结用烧结箱及用该箱烧结处理的稀土磁铁制法
US6524399B1 (en) 1999-03-05 2003-02-25 Pioneer Metals And Technology, Inc. Magnetic material
US7195661B2 (en) * 1999-03-05 2007-03-27 Pioneer Metals And Technology, Inc. Magnetic material
DE10022717C2 (de) * 1999-05-11 2003-08-28 Sumitomo Spec Metals Vorrichtung und Verfahren zum Pressen eines Pulvers einer seltenen Erdmetalllegierung
TW440494B (en) 1999-05-13 2001-06-16 Sumitomo Spec Metals Machining method of rare earth alloy and manufacture of rare earth magnet using it
JP2001123201A (ja) 1999-08-17 2001-05-08 Sanei Kasei Kk 焼結永久磁石の製造方法
DE10066419B8 (de) 1999-08-30 2015-09-17 Hitachi Metals, Ltd. Verfahren zum Konservieren (Aufrechterhalten) eines Legierungspulvermaterials für einen gesinterten Magneten vom R-Fe-B-Typ
US6261387B1 (en) 1999-09-24 2001-07-17 Magnequench International, Inc. Rare-earth iron-boron magnet containing cerium and lanthanum
US6277211B1 (en) 1999-09-30 2001-08-21 Magnequench Inc. Cu additions to Nd-Fe-B alloys to reduce oxygen content in the ingot and rapidly solidified ribbon
US6432158B1 (en) 1999-10-25 2002-08-13 Sumitomo Special Metals Co., Ltd. Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet
US6482353B1 (en) 1999-11-12 2002-11-19 Sumitomo Special Metals Co., Ltd. Method for manufacturing rare earth magnet
MY126994A (en) 1999-12-14 2006-11-30 Hitachi Metals Ltd Method and apparatus for cutting a rare earth alloy
EP1136587B1 (de) * 2000-03-23 2013-05-15 Hitachi Metals, Ltd. Vorrichtung zum Auftragen von Filmen
WO2001091139A1 (en) 2000-05-24 2001-11-29 Sumitomo Special Metals Co., Ltd. Permanent magnet including multiple ferromagnetic phases and method for producing the magnet
US6558230B2 (en) 2000-06-23 2003-05-06 Sumitomo Special Metals Co., Ltd. Method for polishing and chamfering rare earth alloy, and method and machine for sorting out ball media
US6527874B2 (en) 2000-07-10 2003-03-04 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for making same
MY128597A (en) * 2000-07-10 2007-02-28 Neomax Co Ltd Method of inhibiting production of projections in metal deposited-film
AU2001275775A1 (en) * 2000-08-03 2002-02-18 Sanei Kasei Co., Limited Nanocomposite permanent magnet
AU2001288123A1 (en) * 2000-10-06 2002-04-22 Santoku Corporation Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet
WO2002036335A1 (fr) * 2000-11-06 2002-05-10 Sumitomo Special Metals Co., Ltd. Procede et dispositif pour mouler de la poudre par pression, et procede de fabrication d'aimant a base de terres rares
US7217328B2 (en) * 2000-11-13 2007-05-15 Neomax Co., Ltd. Compound for rare-earth bonded magnet and bonded magnet using the compound
US6790296B2 (en) * 2000-11-13 2004-09-14 Neomax Co., Ltd. Nanocomposite magnet and method for producing same
CN1228162C (zh) 2000-11-24 2005-11-23 株式会社新王磁材 稀土合金的切断方法和稀土磁铁的制造方法
EP1358660B1 (de) 2001-02-07 2008-08-13 Hitachi Metals, Ltd. Verfahren zur herstellung einer metalllegierung für einen seltenerdmagneten auf eisenbasis
JP4698867B2 (ja) * 2001-03-29 2011-06-08 日立金属株式会社 Ｒ−Ｆｅ−Ｂ系合金の造粒粉の製造方法およびＲ−Ｆｅ−Ｂ系合金焼結体の製造方法
CN1300360C (zh) * 2001-03-30 2007-02-14 株式会社新王磁材 稀土合金烧坯及其制造方法
HU227736B1 (en) * 2001-05-15 2012-02-28 Hitachi Metals Ltd Iron-based rare earth alloy nanocomposite magnet and method for producing the same
WO2002099823A1 (en) * 2001-05-30 2002-12-12 Sumitomo Special Metals Co., Ltd. Method of making sintered compact for rare earth magnet
US7175718B2 (en) * 2001-06-19 2007-02-13 Mitsubishi Denki Kabushiki Kaisha Rare earth element permanent magnet material
DE10291914B3 (de) * 2001-06-29 2013-03-28 Hitachi Metals, Ltd. Vorrichtung, um eine Seltenerdmetall-Legierung einem Hydrierungsverfahren zu unterziehen
CN1240088C (zh) * 2001-07-02 2006-02-01 株式会社新王磁材 制备稀土烧结磁体的方法
EP1414050B1 (de) * 2001-07-31 2006-10-25 Neomax Co., Ltd. Verfahren zum herstellen eines nanozusammensetzungsmagneten unter verwendung eines atomisierungsverfahrens
WO2003033207A1 (fr) * 2001-10-17 2003-04-24 Neomax Co., Ltd. Procede de decoupe au moyen d'un fil helicoidal, dispositif de decoupe a fil helicoidal, et procede de fabrication d'un aimant permanent a base de terres rares
US7261781B2 (en) * 2001-11-22 2007-08-28 Neomax Co., Ltd. Nanocomposite magnet
CN1261260C (zh) * 2001-11-28 2006-06-28 株式会社新王磁材 稀土类合金造粒粉的制法及稀土类合金烧结体的制法
KR100746897B1 (ko) * 2001-12-28 2007-08-07 신에쓰 가가꾸 고교 가부시끼가이샤 희토류 소결 자석 및 희토류 소결 자석의 제조 방법
CN1325019C (zh) * 2002-02-15 2007-07-11 株式会社新王磁材 磁场产生装置及其制造方法
CN1328008C (zh) * 2002-03-01 2007-07-25 株式会社新王磁材 稀土类合金的切断方法
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
US6994755B2 (en) * 2002-04-29 2006-02-07 University Of Dayton Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets
US6966953B2 (en) * 2002-04-29 2005-11-22 University Of Dayton Modified sintered RE-Fe-B-type, rare earth permanent magnets with improved toughness
US20050217758A1 (en) 2002-06-13 2005-10-06 Neomax Co., Ltd Rare earth sintered magnet and method for production thereof
US6828891B2 (en) 2002-07-25 2004-12-07 Ge Medical Systems Global Technology Company, Llc Method for assembling magnetic members for magnetic resonance imaging magnetic field generator
US6664878B1 (en) 2002-07-26 2003-12-16 Ge Medical Systems Global Technology Company, Llc Method for assembling magnetic members for magnetic resonance imaging magnetic field generator
AU2003272093A1 (en) * 2002-10-17 2004-05-04 Neomax Co., Ltd. Nanocomposite magnet and method for producing the same
US6825666B2 (en) * 2002-12-23 2004-11-30 General Electric Company Pole face for permanent magnet MRI with laminated structure
US20040169434A1 (en) * 2003-01-02 2004-09-02 Washington Richard G. Slip ring apparatus
US7071591B2 (en) * 2003-01-02 2006-07-04 Covi Technologies Electromagnetic circuit and servo mechanism for articulated cameras
US7199690B2 (en) * 2003-03-27 2007-04-03 Tdk Corporation R-T-B system rare earth permanent magnet
CN1310729C (zh) * 2003-04-22 2007-04-18 株式会社新王磁材 稀土类合金粉末的制造方法及稀土类烧结磁铁的制造方法
EP1662516B1 (de) * 2003-08-12 2014-12-31 Hitachi Metals, Ltd. Gesinterter r-t-b-magnet und seltenerdlegierung
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
JP4600285B2 (ja) * 2003-12-10 2010-12-15 日立金属株式会社 ナノコンポジット磁石、ナノコンポジット磁石用急冷合金、およびこれらの製造方法ならびに判別方法
US20060054245A1 (en) * 2003-12-31 2006-03-16 Shiqiang Liu Nanocomposite permanent magnets
DE112005000842B4 (de) 2004-04-15 2022-09-15 Hitachi Metals, Ltd. Verfahren zum Verleihen von Widerstand gegenüber Wasserstoff an einen Artikel
CN1934283B (zh) 2004-06-22 2011-07-27 信越化学工业株式会社 R-Fe-B基稀土永磁体材料
CN1985338A (zh) * 2004-06-30 2007-06-20 代顿大学 各向异性的纳米复合稀土永磁体及其制造方法
JP4260087B2 (ja) * 2004-09-27 2009-04-30 日立金属株式会社 希土類焼結磁石及びその製造方法
DE112006000070T5 (de) * 2005-07-15 2008-08-14 Hitachi Metals, Ltd. Seltenerdmetall-Sintermagnet und Verfahren zu seiner Herstellung
EP2003662B1 (de) 2006-03-31 2015-09-30 Hitachi Metals, Ltd. Verfahren zur herstellung eines seltenerd-permanentmagneten auf metallbasis
WO2008139556A1 (ja) * 2007-05-02 2008-11-20 Hitachi Metals, Ltd. Ｒ－ｔ－ｂ系焼結磁石
KR101378090B1 (ko) * 2007-05-02 2014-03-27 히다찌긴조꾸가부시끼가이사 Ｒ－ｔ－ｂ계 소결 자석
WO2009150843A1 (ja) * 2008-06-13 2009-12-17 日立金属株式会社 Ｒ－Ｔ－Ｃｕ－Ｍｎ－Ｂ系焼結磁石
US20090320184A1 (en) * 2008-06-27 2009-12-31 Brain Schaefer Underwear
EP2299455B1 (de) 2008-07-04 2018-09-19 Hitachi Metals, Ltd. Korrosionsbeständiger magnet und verfahren zu seiner herstellung
JP2010215972A (ja) * 2009-03-17 2010-09-30 Toyota Motor Corp ＮｄＦｅＢＣｕ磁石材料
US8821650B2 (en) * 2009-08-04 2014-09-02 The Boeing Company Mechanical improvement of rare earth permanent magnets
US20110049421A1 (en) * 2009-08-28 2011-03-03 Primet Precision Materials, Inc. Compositions and processes for making the same
JP2012099523A (ja) * 2010-10-29 2012-05-24 Shin Etsu Chem Co Ltd 異方性希土類焼結磁石及びその製造方法
JP6256140B2 (ja) 2013-04-22 2018-01-10 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP6330254B2 (ja) 2013-04-22 2018-05-30 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石
JP5370609B1 (ja) 2013-04-25 2013-12-18 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系永久磁石
JP5565497B1 (ja) 2013-04-25 2014-08-06 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系永久磁石
JP5565498B1 (ja) 2013-04-25 2014-08-06 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系永久磁石
JP5565499B1 (ja) 2013-04-25 2014-08-06 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系永久磁石
JP6312821B2 (ja) 2013-06-17 2018-04-18 アーバン マイニング テクノロジー カンパニー，エルエルシー 磁気性能が改善又は回復されたｎｄ−ｆｅ−ｂ磁石を形成するための磁石の再生
JP6380738B2 (ja) 2014-04-21 2018-08-29 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石、ｒ−ｔ−ｂ系永久磁石用原料合金
JP5729511B1 (ja) 2014-04-21 2015-06-03 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石、及び、回転機
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
CN104575902A (zh) * 2014-11-26 2015-04-29 宁波格荣利磁业有限公司 一种添加铈的钕铁硼磁体及其制备方法
JP6468435B2 (ja) * 2015-04-15 2019-02-13 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167240A (en) * 1937-09-30 1939-07-25 Mallory & Co Inc P R Magnet material
GB734597A (en) * 1951-08-06 1955-08-03 Deutsche Edelstahlwerke Ag Permanent magnet alloys and the production thereof
US4063970A (en) * 1967-02-18 1977-12-20 Magnetfabrik Bonn G.M.B.H. Vormals Gewerkschaft Windhorst Method of making permanent magnets
US3560200A (en) * 1968-04-01 1971-02-02 Bell Telephone Labor Inc Permanent magnetic materials
US3684593A (en) * 1970-11-02 1972-08-15 Gen Electric Heat-aged sintered cobalt-rare earth intermetallic product and process
JPS5648961B2 (de) * 1973-05-10 1981-11-19
JPS5250598A (en) * 1975-10-20 1977-04-22 Seiko Instr & Electronics Ltd Rare earth-cobalt magnet
JPS5328018A (en) * 1976-08-27 1978-03-15 Furukawa Electric Co Ltd:The Unticorrosive alloy having high permeability
JPS5476419A (en) * 1977-11-30 1979-06-19 Hitachi Metals Ltd High magnetic stress material
JPS5814865B2 (ja) * 1978-03-23 1983-03-22 セイコーエプソン株式会社 永久磁石材料
JPS55132004A (en) * 1979-04-02 1980-10-14 Seiko Instr & Electronics Ltd Manufacture of rare earth metal and cobalt magnet
JPS5629639A (en) * 1979-08-17 1981-03-25 Seiko Instr & Electronics Ltd Amorphous rare earth magnets and producing thereof
JPS5647542A (en) * 1979-09-27 1981-04-30 Hitachi Metals Ltd Alloy for permanent magnet
JPS5647538A (en) * 1979-09-27 1981-04-30 Hitachi Metals Ltd Alloy for permanent magnet
JPS5665954A (en) * 1979-11-02 1981-06-04 Seiko Instr & Electronics Ltd Rare earth element magnet and its manufacture
JPS6020882B2 (ja) * 1980-02-01 1985-05-24 東北大学金属材料研究所長 高透磁率アモルフアス合金を用いてなる磁気ヘツドの製造法
JPS56116844A (en) * 1980-02-15 1981-09-12 Seiko Instr & Electronics Ltd Manufacture of amorphous magnetic material and rare earth element magnet
US4401482A (en) * 1980-02-22 1983-08-30 Bell Telephone Laboratories, Incorporated Fe--Cr--Co Magnets by powder metallurgy processing
JPS601940B2 (ja) * 1980-08-11 1985-01-18 富士通株式会社 感温素子材料
JPS57141901A (en) * 1981-02-26 1982-09-02 Mitsubishi Steel Mfg Co Ltd Permanent magnet powder
US4496395A (en) * 1981-06-16 1985-01-29 General Motors Corporation High coercivity rare earth-iron magnets
US4402770A (en) * 1981-10-23 1983-09-06 The United States Of America As Represented By The Secretary Of The Navy Hard magnetic alloys of a transition metal and lanthanide
US4533408A (en) * 1981-10-23 1985-08-06 Koon Norman C Preparation of hard magnetic alloys of a transition metal and lanthanide
JPS58123853A (ja) * 1982-01-18 1983-07-23 Fujitsu Ltd 希土類−鉄系永久磁石およびその製造方法
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
CA1315571C (en) * 1982-08-21 1993-04-06 Masato Sagawa Magnetic materials and permanent magnets
EP0108474B2 (de) * 1982-09-03 1995-06-21 General Motors Corporation RE-TM-B Legierungen, deren Herstellung und permanent Magnete die solche Legierungen enthalten
US4840684A (en) * 1983-05-06 1989-06-20 Sumitomo Special Metals Co, Ltd. Isotropic permanent magnets and process for producing same
US4684406A (en) * 1983-05-21 1987-08-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
US4597938A (en) * 1983-05-21 1986-07-01 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnet materials
US4601875A (en) * 1983-05-25 1986-07-22 Sumitomo Special Metals Co., Ltd. Process for producing magnetic materials
US4773450A (en) * 1983-12-19 1988-09-27 Robert K. Stanley Interlining of fluid transport pipelines, pipes, and the like
FR2566758B1 (fr) * 1984-06-29 1990-01-12 Centre Nat Rech Scient Nouveaux hydrures de terre rare/fer/bore et terre rare/cobalt/bore magnetiques, leur procede de fabrication et de fabrication des produits deshydrures pulverulents correspondants, leurs applications
US4721538A (en) * 1984-07-10 1988-01-26 Crucible Materials Corporation Permanent magnet alloy
US4767450A (en) * 1984-11-27 1988-08-30 Sumitomo Special Metals Co., Ltd. Process for producing the rare earth alloy powders
US4765848A (en) * 1984-12-31 1988-08-23 Kaneo Mohri Permanent magnent and method for producing same

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DE3380376D1 (en) 1989-09-14
EP0101552A3 (en) 1985-03-20
EP0101552A2 (de) 1984-02-29
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EP0101552B1 (de) 1989-08-09
US5096512A (en) 1992-03-17
CA1316375C (en) 1993-04-20
HK68290A (en) 1990-09-07
SG48490G (en) 1991-02-14

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