HK68890A - Process for producing permanent magnets - Google Patents

Process for producing permanent magnets

Info

Publication number
HK68890A
HK68890A HK688/90A HK68890A HK68890A HK 68890 A HK68890 A HK 68890A HK 688/90 A HK688/90 A HK 688/90A HK 68890 A HK68890 A HK 68890A HK 68890 A HK68890 A HK 68890A
Authority
HK
Hong Kong
Prior art keywords
permanent magnets
producing permanent
producing
magnets
permanent
Prior art date
Application number
HK688/90A
Other languages
English (en)
Inventor
Hitoshi Yamamoto
Masato Sagawa
Setsuo Fujimura
Yutaka Matsuura
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
Priority claimed from JP59036923A external-priority patent/JPS60182104A/ja
Priority claimed from JP59036924A external-priority patent/JPS60182105A/ja
Priority claimed from JP59036925A external-priority patent/JPS60182106A/ja
Priority claimed from JP59036926A external-priority patent/JPH061726B2/ja
Application filed by Sumitomo Spec Metals filed Critical Sumitomo Spec Metals
Publication of HK68890A publication Critical patent/HK68890A/xx

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
HK688/90A 1984-02-28 1990-08-30 Process for producing permanent magnets HK68890A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59036923A JPS60182104A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP59036924A JPS60182105A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP59036925A JPS60182106A (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法
JP59036926A JPH061726B2 (ja) 1984-02-28 1984-02-28 永久磁石材料の製造方法

Publications (1)

Publication Number Publication Date
HK68890A true HK68890A (en) 1990-09-07

Family

ID=27460340

Family Applications (1)

Application Number Title Priority Date Filing Date
HK688/90A HK68890A (en) 1984-02-28 1990-08-30 Process for producing permanent magnets

Country Status (6)

Country Link
US (2) US4826546A (xx)
EP (1) EP0153744B1 (xx)
CA (1) CA1235631A (xx)
DE (2) DE3575231D1 (xx)
HK (1) HK68890A (xx)
SG (1) SG49190G (xx)

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DE3575231D1 (de) * 1984-02-28 1990-02-08 Sumitomo Spec Metals Verfahren zur herstellung von permanenten magneten.
JPS6187825A (ja) * 1984-10-05 1986-05-06 Hitachi Metals Ltd 永久磁石材料の製造方法
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
US4859254A (en) * 1985-09-10 1989-08-22 Kabushiki Kaisha Toshiba Permanent magnet
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
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
EP0248665B1 (en) * 1986-06-06 1994-05-18 Seiko Instruments Inc. Rare earth-iron magnet and method of making same
EP0265006A1 (en) * 1986-10-13 1988-04-27 Koninklijke Philips Electronics N.V. Method of manufacturing a permanent magnet
AT389527B (de) * 1987-06-19 1989-12-27 Seiko Epson Corp Verfahren zur herstellung von dauermagneten
US5004499A (en) * 1987-11-02 1991-04-02 Union Oil Company Of California Rare earth-iron-boron compositions for polymer-bonded magnets
DE3740157A1 (de) * 1987-11-26 1989-06-08 Max Planck Gesellschaft Sintermagnet auf basis von fe-nd-b
US5055128A (en) * 1988-05-30 1991-10-08 Kawasaki Steel Corporation Sintered fe-co type magnetic materials
US5000800A (en) * 1988-06-03 1991-03-19 Masato Sagawa Permanent magnet and method for producing the same
EP0365079B1 (en) * 1988-10-17 1994-06-01 Koninklijke Philips Electronics N.V. Method of manufacturing a permanent magnet
DE69003720T3 (de) * 1989-04-14 1999-04-22 Daido Steel Co Ltd Verfahren und Vorrichtung für die Herstellung eines anisotropen Seltenerd-Magneten.
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
US5266128A (en) * 1989-06-13 1993-11-30 Sps Technologies, Inc. Magnetic materials and process for producing the same
US4966633A (en) * 1989-06-26 1990-10-30 General Motors Corporation Coercivity in hot worked iron-neodymium boron type permanent magnets
JPH0354806A (ja) * 1989-07-24 1991-03-08 Shin Etsu Chem Co Ltd 希土類永久磁石の製造方法
US5162064A (en) * 1990-04-10 1992-11-10 Crucible Materials Corporation Permanent magnet having improved corrosion resistance and method for producing the same
EP0506412B1 (en) * 1991-03-27 1994-05-11 Kabushiki Kaisha Toshiba Magnetic material
JPH0521220A (ja) * 1991-07-15 1993-01-29 Mitsubishi Materials Corp 高い残留磁束密度を有する射出成形純鉄焼結軟磁性材の製造法
WO1994001877A1 (en) * 1992-07-07 1994-01-20 Vadim Petrovich Piskorsky Method for making composite magnets
US6511552B1 (en) * 1998-03-23 2003-01-28 Sumitomo Special Metals Co., Ltd. Permanent magnets and R-TM-B based permanent magnets
DE19843883C1 (de) * 1998-09-24 1999-10-07 Vacuumschmelze Gmbh Verfahren zur Wiederverwendung von Dauermagneten
US6319335B1 (en) * 1999-02-15 2001-11-20 Shin-Etsu Chemical Co., Ltd. Quenched thin ribbon of rare earth/iron/boron-based magnet alloy
DE60028659T2 (de) * 1999-06-08 2007-05-31 Shin-Etsu Chemical Co., Ltd. Dünnes Band einer dauermagnetischen Legierung auf Seltenerdbasis
US6746545B2 (en) * 2000-05-31 2004-06-08 Shin-Etsu Chemical Co., Ltd. Preparation of 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
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
US20060054245A1 (en) * 2003-12-31 2006-03-16 Shiqiang Liu Nanocomposite permanent magnets
US8100887B2 (en) * 2004-03-09 2012-01-24 Bluesky Medical Group Incorporated Enclosure-based reduced pressure treatment system
CA2571401A1 (en) * 2004-06-30 2006-01-12 University Of Dayton Anisotropic nanocomposite rare earth permanent magnets and method of making
JP4638937B2 (ja) * 2008-12-26 2011-02-23 三菱製鋼株式会社 スライド型ヒンジ機構
JP6084601B2 (ja) * 2012-02-23 2017-02-22 Ｊｘ金属株式会社 ネオジム系希土類永久磁石及びその製造方法
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
US9336932B1 (en) 2014-08-15 2016-05-10 Urban Mining Company Grain boundary engineering
TWI673732B (zh) * 2015-03-31 2019-10-01 日商信越化學工業股份有限公司 Ｒ－Ｆｅ－Ｂ系燒結磁石及其製造方法
JP6724865B2 (ja) 2016-06-20 2020-07-15 信越化学工業株式会社 Ｒ−Ｆｅ−Ｂ系焼結磁石及びその製造方法
JP6614084B2 (ja) * 2016-09-26 2019-12-04 信越化学工業株式会社 Ｒ−Ｆｅ−Ｂ系焼結磁石の製造方法

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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
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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
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US4541877A (en) * 1984-09-25 1985-09-17 North Carolina State University Method of producing high performance permanent magnets
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Also Published As

Publication number Publication date
EP0153744A3 (en) 1986-09-17
US4826546A (en) 1989-05-02
SG49190G (en) 1990-08-17
DE3587977T2 (de) 1995-05-18
CA1235631A (en) 1988-04-26
EP0153744A2 (en) 1985-09-04
DE3587977D1 (de) 1995-02-23
EP0153744B1 (en) 1990-01-03
US5110377A (en) 1992-05-05
DE3575231D1 (de) 1990-02-08

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20050226