DE3789951D1 - Anisotropes Magnetpulver, Magnet daraus und Herstellungsverfahren. - Google Patents

Anisotropes Magnetpulver, Magnet daraus und Herstellungsverfahren.

Info

Publication number
DE3789951D1
DE3789951D1 DE3789951T DE3789951T DE3789951D1 DE 3789951 D1 DE3789951 D1 DE 3789951D1 DE 3789951 T DE3789951 T DE 3789951T DE 3789951 T DE3789951 T DE 3789951T DE 3789951 D1 DE3789951 D1 DE 3789951D1
Authority
DE
Germany
Prior art keywords
manufacturing process
magnetic powder
anisotropic magnetic
magnet made
magnet
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 - Lifetime
Application number
DE3789951T
Other languages
English (en)
Other versions
DE3789951T2 (de
Inventor
Minoru Endoh
Yasuto Nozawa
Katsunori Iwasaki
Shigeho Tanigawa
Masaaki Tokunaga
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
Hitachi Metals 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
Priority claimed from JP62227388A external-priority patent/JP2731150B2/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of DE3789951D1 publication Critical patent/DE3789951D1/de
Publication of DE3789951T2 publication Critical patent/DE3789951T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
    • B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
    • 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
    • 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
    • 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
    • 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
    • H01F1/0578—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 bonded together

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Transportation (AREA)
  • Hard Magnetic Materials (AREA)
DE3789951T 1987-01-06 1987-11-20 Anisotropes Magnetpulver, Magnet daraus und Herstellungsverfahren. Expired - Lifetime DE3789951T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP85787 1987-01-06
JP62227388A JP2731150B2 (ja) 1986-10-14 1987-09-10 磁気異方性ボンド磁石、それに用いる磁気異方性磁粉およびその製造方法、ならびに磁気異方性圧粉磁石

Publications (2)

Publication Number Publication Date
DE3789951D1 true DE3789951D1 (de) 1994-07-07
DE3789951T2 DE3789951T2 (de) 1994-09-08

Family

ID=26333956

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789951T Expired - Lifetime DE3789951T2 (de) 1987-01-06 1987-11-20 Anisotropes Magnetpulver, Magnet daraus und Herstellungsverfahren.

Country Status (4)

Country Link
US (3) US4983232A (de)
EP (1) EP0274034B1 (de)
CA (1) CA1336551C (de)
DE (1) DE3789951T2 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6136099A (en) * 1985-08-13 2000-10-24 Seiko Epson Corporation Rare earth-iron series permanent magnets and method of preparation
US5538565A (en) * 1985-08-13 1996-07-23 Seiko Epson Corporation Rare earth cast alloy permanent magnets and methods of preparation
US5213631A (en) * 1987-03-02 1993-05-25 Seiko Epson Corporation Rare earth-iron system permanent magnet and process for producing the same
US5228930A (en) * 1989-07-31 1993-07-20 Mitsubishi Materials Corporation Rare earth permanent magnet power, method for producing same and bonded magnet
US5580396A (en) * 1990-07-02 1996-12-03 Centre National De La Recherche Scientifique (Cnrs) Treatment of pulverant magnetic materials and products thus obtained
JP3092672B2 (ja) * 1991-01-30 2000-09-25 三菱マテリアル株式会社 希土類−Ｆｅ−Ｃｏ−Ｂ系異方性磁石
US5395462A (en) * 1991-01-28 1995-03-07 Mitsubishi Materials Corporation Anisotropic rare earth-Fe-B system and rare earth-Fe-Co-B system magnet
US5178692A (en) * 1992-01-13 1993-01-12 General Motors Corporation Anisotropic neodymium-iron-boron powder with high coercivity and method for forming same
US5211766A (en) * 1992-01-21 1993-05-18 General Motors Corporation Anisotropic neodymium-iron-boron permanent magnets formed at reduced hot working temperatures
US5387291A (en) * 1992-03-19 1995-02-07 Sumitomo Special Metals Co., Ltd. Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor
JPH05335120A (ja) * 1992-06-01 1993-12-17 Mitsubishi Materials Corp 異方性ボンド磁石製造用固体樹脂バインダー被覆磁石粉末およびその製造法
GB9217760D0 (en) * 1992-08-21 1992-10-07 Martinex R & D Inc Permanent manget material containing a rare-earth element,iron,nitrogen & carbon
US5352301A (en) * 1992-11-20 1994-10-04 General Motors Corporation Hot pressed magnets formed from anisotropic powders
US5589010A (en) * 1993-04-09 1996-12-31 General Motors Corporation Annealed polymer-bonded soft magnetic body
US5595609A (en) * 1993-04-09 1997-01-21 General Motors Corporation Annealed polymer-bonded soft magnetic body
JP3171558B2 (ja) * 1995-06-30 2001-05-28 株式会社東芝 磁性材料およびボンド磁石
US6004407A (en) * 1995-09-22 1999-12-21 Alps Electric Co., Ltd. Hard magnetic materials and method of producing the same
US6332933B1 (en) 1997-10-22 2001-12-25 Santoku Corporation Iron-rare earth-boron-refractory metal magnetic nanocomposites
US6494968B1 (en) * 1998-02-06 2002-12-17 Toda Kogyo Corporation Lamellar rare earth-iron-boron-based magnet alloy particles, process for producing the same and bonded magnet produced therefrom
EP1053552B1 (de) * 1998-02-09 2003-02-05 Lofo High Tech Film GmbH Verfahren zur herstellung einer magnetfolie
ATE354858T1 (de) 1998-07-13 2007-03-15 Santoku Corp Auf eisen-seltenerd-bor basierte leistungsfähige magnetische materialien
US6377049B1 (en) 1999-02-12 2002-04-23 General Electric Company Residuum rare earth magnet
US6120620A (en) * 1999-02-12 2000-09-19 General Electric Company Praseodymium-rich iron-boron-rare earth composition, permanent magnet produced therefrom, and method of making
JPWO2002103719A1 (ja) * 2001-06-19 2004-10-07 三菱電機株式会社 希土類永久磁石材料
EP1408518B1 (de) * 2002-10-08 2010-12-15 Hitachi Metals, Ltd. R-Fe-B gesinterter Permanentmagnet und Verfahren zu dessen Herstellung
WO2004046409A2 (en) * 2002-11-18 2004-06-03 Iowa State University Research Foundation, Inc. Permanent magnet alloy with improved high temperature performance
JP4853771B2 (ja) * 2006-03-01 2012-01-11 日立金属株式会社 ヨーク一体型ボンド磁石およびそれを用いたモータ用磁石回転子
CN101657863B (zh) * 2007-05-02 2012-11-07 日立金属株式会社 R-t-b系烧结磁体
EP2034493B1 (de) * 2007-05-02 2012-12-05 Hitachi Metals, Ltd. R-t-b-sintermagnet
JP2010182827A (ja) * 2009-02-04 2010-08-19 Toyota Motor Corp 高保磁力ＮｄＦｅＢＧａ磁石の製造法
US8821650B2 (en) * 2009-08-04 2014-09-02 The Boeing Company Mechanical improvement of rare earth permanent magnets
US8692639B2 (en) * 2009-08-25 2014-04-08 Access Business Group International Llc Flux concentrator and method of making a magnetic flux concentrator
WO2013125075A1 (ja) 2012-02-23 2013-08-29 Jx日鉱日石金属株式会社 ネオジム系希土類永久磁石及びその製造方法
JPWO2017022684A1 (ja) * 2015-07-31 2018-05-24 日東電工株式会社 希土類磁石形成用焼結体及び希土類焼結磁石
CN107731437B (zh) * 2017-10-30 2019-10-15 北京工业大学 一种降低烧结钕铁硼薄片磁体不可逆损失的方法
CN110767400B (zh) * 2019-11-06 2021-12-14 有研稀土新材料股份有限公司 一种稀土异方性粘结磁粉及其制备方法以及磁体
CN110993312B (zh) * 2019-12-31 2022-01-28 烟台正海磁性材料股份有限公司 一种降低烧结钕铁硼薄片磁体不可逆损失、提高其使用温度的方法
CN116230346B (zh) * 2023-02-16 2023-08-22 四川大学 一种各向异性纳米晶稀土永磁体及制备方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374665A (en) * 1981-10-23 1983-02-22 The United States Of America As Represented By The Secretary Of The Navy Magnetostrictive devices
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
JPS5964733A (ja) * 1982-09-27 1984-04-12 Sumitomo Special Metals Co Ltd 永久磁石
CA1315571C (en) * 1982-08-21 1993-04-06 Masato Sagawa Magnetic materials and permanent magnets
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
JPS5946008A (ja) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd 永久磁石
CA1216623A (en) * 1983-05-09 1987-01-13 John J. Croat Bonded rare earth-iron magnets
US4601875A (en) * 1983-05-25 1986-07-22 Sumitomo Special Metals Co., Ltd. Process for producing magnetic materials
CA1236381A (en) * 1983-08-04 1988-05-10 Robert W. Lee Iron-rare earth-boron permanent magnets by hot working
US4558077A (en) * 1984-03-08 1985-12-10 General Motors Corporation Epoxy bonded rare earth-iron magnets
JPH06942B2 (ja) * 1984-04-18 1994-01-05 セイコーエプソン株式会社 希土類永久磁石
JPH062930B2 (ja) * 1984-05-14 1994-01-12 セイコーエプソン株式会社 希土類永久磁石
JPS60243247A (ja) * 1984-05-15 1985-12-03 Namiki Precision Jewel Co Ltd 永久磁石合金
CA1244322A (en) * 1984-09-14 1988-11-08 Robert W. Lee Hot pressed permanent magnet having high and low coercivity regions
US4859254A (en) * 1985-09-10 1989-08-22 Kabushiki Kaisha Toshiba Permanent magnet
JP2530641B2 (ja) * 1986-03-20 1996-09-04 日立金属株式会社 磁気異方性ボンド磁石、それに用いる磁粉及びその製造方法
KR880000992A (ko) * 1986-06-12 1988-03-30 와다리 스기이찌로오 영구자석
US4827235A (en) * 1986-07-18 1989-05-02 Kabushiki Kaisha Toshiba Magnetic field generator useful for a magnetic resonance imaging instrument
EP0421488B1 (de) * 1986-07-23 1994-10-12 Hitachi Metals, Ltd. Dauermagnet mit guter thermischer Stabilität
US4842656A (en) * 1987-06-12 1989-06-27 General Motors Corporation Anisotropic neodymium-iron-boron powder with high coercivity

Also Published As

Publication number Publication date
DE3789951T2 (de) 1994-09-08
EP0274034A2 (de) 1988-07-13
USRE38021E1 (en) 2003-03-11
US5096509A (en) 1992-03-17
EP0274034A3 (en) 1989-03-08
US4983232A (en) 1991-01-08
CA1336551C (en) 1995-08-08
EP0274034B1 (de) 1994-06-01

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