SG48490G - Magnetic materials,permanent magnets and methods of making those - Google Patents

Magnetic materials,permanent magnets and methods of making those

Info

Publication number
SG48490G
SG48490G SG48490A SG48490A SG48490G SG 48490 G SG48490 G SG 48490G SG 48490 A SG48490 A SG 48490A SG 48490 A SG48490 A SG 48490A SG 48490 G SG48490 G SG 48490G
Authority
SG
Singapore
Prior art keywords
methods
permanent magnets
magnetic materials
making those
making
Prior art date
Application number
SG48490A
Other languages
English (en)
Original Assignee
Sumitomo Spec Metals
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=SG48490(G) "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 JP58037896A external-priority patent/JPS59163802A/ja
Priority claimed from JP58037898A external-priority patent/JPS59163804A/ja
Priority claimed from JP58084859A external-priority patent/JPS59211558A/ja
Priority claimed from JP58094876A external-priority patent/JPH0778269B2/ja
Application filed by Sumitomo Spec Metals filed Critical Sumitomo Spec Metals
Publication of SG48490G publication Critical patent/SG48490G/en

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)
SG48490A 1982-08-21 1990-07-02 Magnetic materials,permanent magnets and methods of making those SG48490G (en)

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
JP58037896A JPS59163802A (ja) 1983-03-08 1983-03-08 永久磁石材料
JP58037898A JPS59163804A (ja) 1983-03-08 1983-03-08 永久磁石用合金
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
SG48490G true SG48490G (en) 1991-02-14

Family

ID=27563324

Family Applications (1)

Application Number Title Priority Date Filing Date
SG48490A SG48490G (en) 1982-08-21 1990-07-02 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
CA1315571C (en) * 1982-08-21 1993-04-06 Masato Sagawa Magnetic materials and permanent magnets
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
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
US4767474A (en) * 1983-05-06 1988-08-30 Sumitomo Special Metals Co., Ltd. Isotropic magnets and process for producing same
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
CA1236381A (en) * 1983-08-04 1988-05-10 Robert W. Lee Iron-rare earth-boron permanent magnets by hot working
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
DE3479940D1 (en) * 1983-10-26 1989-11-02 Gen Motors Corp High energy product rare earth-transition metal magnet alloys containing boron
DE3575231D1 (de) * 1984-02-28 1990-02-08 Sumitomo Spec Metals Verfahren zur herstellung von permanenten magneten.
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
DE3577618D1 (de) * 1984-09-14 1990-06-13 Toshiba Kawasaki Kk Permanentmagnetische legierung und methode zu ihrer herstellung.
US4541877A (en) * 1984-09-25 1985-09-17 North Carolina State University Method of producing high performance permanent magnets
USRE32714E (en) * 1984-09-25 1988-07-19 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
USRE34838E (en) * 1984-12-31 1995-01-31 Tdk Corporation Permanent magnet and method for producing same
US4765848A (en) * 1984-12-31 1988-08-23 Kaneo Mohri Permanent magnent 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
US4762574A (en) * 1985-06-14 1988-08-09 Union Oil Company Of California Rare earth-iron-boron premanent magnets
US4952252A (en) * 1985-06-14 1990-08-28 Union Oil Company Of California Rare earth-iron-boron-permanent magnets
US5538565A (en) * 1985-08-13 1996-07-23 Seiko Epson Corporation Rare earth cast alloy permanent magnets and methods of preparation
FR2586323B1 (fr) * 1985-08-13 1992-11-13 Seiko Epson Corp Aimant permanent a base de terres rares-fer
US6136099A (en) * 1985-08-13 2000-10-24 Seiko Epson Corporation Rare earth-iron series permanent magnets and method of preparation
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
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
US4769063A (en) * 1986-03-06 1988-09-06 Sumitomo Special Metals Co., Ltd. Method for producing rare earth alloy
DE3779481T2 (de) * 1986-04-15 1992-12-24 Tdk Corp Dauermagnet und verfahren zu seiner herstellung.
US4954186A (en) * 1986-05-30 1990-09-04 Union Oil Company Of California Rear earth-iron-boron permanent magnets containing aluminum
US4878958A (en) * 1986-05-30 1989-11-07 Union Oil Company Of California Method for preparing rare earth-iron-boron permanent magnets
US4747874A (en) * 1986-05-30 1988-05-31 Union Oil Company Of California Rare earth-iron-boron permanent magnets with enhanced coercivity
KR880000992A (ko) * 1986-06-12 1988-03-30 와다리 스기이찌로오 영구자석
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
DE3783413T2 (de) * 1986-09-16 1993-05-27 Tokin Corp 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
KR900006533B1 (ko) * 1987-01-06 1990-09-07 히다찌 긴조꾸 가부시끼가이샤 이방성 자성분말과 이의 자석 및 이의 제조방법
US4983232A (en) * 1987-01-06 1991-01-08 Hitachi Metals, Ltd. Anisotropic magnetic powder and magnet thereof and method of producing same
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
US5266128A (en) * 1989-06-13 1993-11-30 Sps Technologies, Inc. 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
US5244510A (en) * 1989-06-13 1993-09-14 Yakov Bogatin Magnetic materials and process for producing the same
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
US5183630A (en) * 1989-08-25 1993-02-02 Dowa Mining Co., Ltd. Process for production of permanent magnet alloy having improved resistence to oxidation
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
WO1992013353A1 (fr) * 1991-01-28 1992-08-06 Mitsubishi Materials Corporation Aimant a base de terres rares, de fer et de bore et a base de terres rares de fer, de cobalt et de bore ayant des proprietes anisotropes
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
DE69318998T2 (de) * 1992-02-15 1998-10-15 Santoku Metal Ind Legierungsblock für einen Dauermagnet, anisotropes Pulver für einen Dauermagnet, Verfahren zur Herstellung eines solchen und Dauermagneten
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
DE69318147T2 (de) * 1993-07-06 1998-11-12 Sumitomo Spec Metals R-Fe-B Dauermagnetmaterialien und ihre Herstellungsverfahren
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
WO1999000523A1 (en) * 1997-06-30 1999-01-07 Wisconsin Alumni Research Foundation Nanocrystal dispersed amorphous alloys and method of preparation thereof
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
AU5313899A (en) 1998-07-13 2000-02-01 Santoku America, Inc. High performance iron-rare earth-boron-refractory-cobalt nanocomposites
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
US6352598B1 (en) * 1999-05-11 2002-03-05 Sumitomo Special Metals Co., Ltd. Rare-earth alloy powder pressing apparatus and rare-earth alloy powder pressing method
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
DE10042357B4 (de) * 1999-08-30 2009-04-09 Hitachi Metals, Ltd. Verfahren zur Herstellung eines Sintermagneten vom R-Fe-B-Typ, und Verfahren zur Herstellung eines Legierungspulver-Materials für einen Sintermagneten 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
MY117489A (en) 2000-06-23 2004-07-31 Neomax Co Ltd Method for polishing and chamfering rare earth alloy, and method and machine for sorting out ball media
EP1299570B1 (de) * 2000-07-10 2013-02-27 Hitachi Metals, Ltd. Verfahren zum verhindern der bildung von vorsprüngen bei aufgedampftem metallfilm
CN1182548C (zh) 2000-07-10 2004-12-29 株式会社新王磁材 稀土磁铁及其制造方法
WO2002013209A2 (en) * 2000-08-03 2002-02-14 Sanei Kasei Co., Limited Nanocomposite permanent magnet
JP4787459B2 (ja) * 2000-10-06 2011-10-05 株式会社三徳 ストリップキャスト法を用いたナノコンポジット型永久磁石用原料合金の製造方法
US7037465B2 (en) * 2000-11-06 2006-05-02 Neomax Co., Ltd. Powder compacting method, powder compacting apparatus and method for producing rare earth magnet
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
US6695929B2 (en) 2001-02-07 2004-02-24 Sumitomo Special Co., Ltd. Method of making material alloy for iron-based rare earth magnet
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
EP1645648B1 (de) * 2001-03-30 2007-07-25 Neomax Co., Ltd. Seltenerdlegierungs sinterformteil
HU227736B1 (en) * 2001-05-15 2012-02-28 Hitachi Metals Ltd Iron-based rare earth alloy nanocomposite magnet and method for producing the same
DE10291720T5 (de) * 2001-05-30 2004-08-05 Sumitomo Special Metals Co., Ltd. Verfahren zur Herstellung eines gesinterten Presslings für einen Seltenerdmetall-Magneten
WO2002103719A1 (fr) * 2001-06-19 2002-12-27 Mitsubishi Denki Kabushiki Kaisha Materiau magnetique durable en metal du groupe des terres rares
US7018485B2 (en) * 2001-06-29 2006-03-28 Neomax Co., Ltd. Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus
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
ATE343842T1 (de) * 2001-07-31 2006-11-15 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
EP1446816B1 (de) * 2001-11-22 2006-08-02 Neomax Co., Ltd. Nanozusammensetzungsmagnet
US7622010B2 (en) * 2001-11-28 2009-11-24 Hitachi Metals, Ltd. Method and apparatus for producing granulated powder of rare earth alloy and method for producing rare earth alloy sintered compact
CN1299300C (zh) * 2001-12-28 2007-02-07 信越化学工业株式会社 稀土类烧结磁体及其制造方法
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
AU2003211347A1 (en) * 2002-03-01 2003-09-16 Neomax Co., Ltd. Method of cutting rare earth alloy
CN100528420C (zh) * 2002-04-12 2009-08-19 日立金属株式会社 稀土类合金粉末的压制成型方法以及稀土类合金烧结体的制造方法
US6966953B2 (en) * 2002-04-29 2005-11-22 University Of Dayton Modified sintered RE-Fe-B-type, rare earth permanent magnets with improved toughness
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
EP1494250B1 (de) 2002-06-13 2014-12-31 Hitachi Metals, Ltd. Gesinterter seltenerdmagnet und verfahren zu seiner herstellung
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
HU228834B1 (hu) * 2002-10-17 2013-06-28 Hitachi Metals Ltd Nanokompozit mágnes és elõállítására szolgáló eljárás
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
JP4449900B2 (ja) * 2003-04-22 2010-04-14 日立金属株式会社 希土類合金粉末の製造方法および希土類焼結磁石の製造方法
US7534311B2 (en) * 2003-08-12 2009-05-19 Hitachi Metals, Ltd. R-t-b sintered magnet and rare earth alloy
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
CN1965109B (zh) 2004-04-15 2010-11-10 日立金属株式会社 赋予物品耐氢性的方法
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
JP2008505500A (ja) * 2004-06-30 2008-02-21 ユニバーシティ・オブ・デイトン 異方性ナノコンポジット希土類永久磁石とそれらの製造方法
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
CN101031984B (zh) * 2005-07-15 2011-12-21 日立金属株式会社 稀土类烧结磁体及其制造方法
CN101443862B (zh) 2006-03-31 2011-08-31 日立金属株式会社 稀土类永久磁铁的制造方法
CN101657863B (zh) * 2007-05-02 2012-11-07 日立金属株式会社 R-t-b系烧结磁体
WO2008139559A1 (ja) * 2007-05-02 2008-11-20 Hitachi Metals, Ltd. Ｒ－ｔ－ｂ系焼結磁石
EP2302646B1 (de) * 2008-06-13 2018-10-31 Hitachi Metals, Ltd. Sintermagnet des r-t-cu-mn-b-typs
US20090320184A1 (en) * 2008-06-27 2009-12-31 Brain Schaefer Underwear
JP4586937B2 (ja) 2008-07-04 2010-11-24 日立金属株式会社 耐食性磁石およびその製造方法
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
JP5565498B1 (ja) 2013-04-25 2014-08-06 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
JP5565499B1 (ja) 2013-04-25 2014-08-06 Ｔｄｋ株式会社 Ｒ−ｔ−ｂ系永久磁石
BR112015031725A2 (pt) 2013-06-17 2017-07-25 Urban Mining Tech Company Llc método para fabricação de um imã permanente de nd-fe-b reciclado
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
US4533408A (en) * 1981-10-23 1985-08-06 Koon Norman C Preparation of hard magnetic alloys of a transition metal and lanthanide
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
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
DE3379131D1 (en) * 1982-09-03 1989-03-09 Gen Motors Corp Re-tm-b alloys, method for their production and permanent magnets containing such alloys
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

Also Published As

Publication number Publication date
EP0101552B2 (de) 2002-12-11
EP0101552B1 (de) 1989-08-09
DE3380376D1 (en) 1989-09-14
CA1316375C (en) 1993-04-20
US4770723A (en) 1988-09-13
EP0101552A2 (de) 1984-02-29
EP0101552A3 (en) 1985-03-20
US5096512A (en) 1992-03-17
DE101552T1 (de) 1989-06-22
HK68290A (en) 1990-09-07

Similar Documents

Publication Publication Date Title
DE3380376D1 (en) Magnetic materials, permanent magnets and methods of making those
EP0106948A3 (en) Magnetic materials and permanent magnets
GB2128812B (en) Permanent magnet multipole with adjustable strength
DE3471556D1 (en) Method of manufacturing permanent magnetic field rotor
DE3379131D1 (en) Re-tm-b alloys, method for their production and permanent magnets containing such alloys
GB2046528B (en) Permanent magnets
GB2089371B (en) Permanent magnet and method of making the same
GB8508484D0 (en) Magnetic rotor
GB2112578B (en) Field composite permanent magnet and method of producing the same
EP0248981A3 (en) Permanent magnet and permanent magnetic alloy
GB2039151B (en) Matrix-bonded permanent magnets
EP0195219A3 (en) Quenched permanent magnetic material and method of preparing the magnetic material
DE3380612D1 (en) Isotropic permanent magnets and process for producing same
DE3365406D1 (en) Permanent mn-al-c alloy magnets and method for making same
GB8309296D0 (en) Magnetic powder
GB8331307D0 (en) Switchable permanent magnetic chuck
GB8319678D0 (en) Magnet assemblies
GB2124033B (en) Permanent magnet
DE3365189D1 (en) Thin-film permanent magnet
DE3269965D1 (en) Permanent magnet
JPS5655013A (en) Method of manufacturing permanent magnet
DE3268714D1 (en) Permanent magnets
GB8322056D0 (en) Magnetic field seal
GB8301525D0 (en) Uniform field solenoid magnet
GB8333295D0 (en) Generating electrical and magnetic fields