JPS647501A - Permanent magnet and its manufacture - Google Patents

Permanent magnet and its manufacture

Info

Publication number
JPS647501A
JPS647501A JP62062198A JP6219887A JPS647501A JP S647501 A JPS647501 A JP S647501A JP 62062198 A JP62062198 A JP 62062198A JP 6219887 A JP6219887 A JP 6219887A JP S647501 A JPS647501 A JP S647501A
Authority
JP
Japan
Prior art keywords
permanent magnet
microcrystal
constitution
manufacture
combination
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.)
Granted
Application number
JP62062198A
Other languages
Japanese (ja)
Other versions
JP2727506B2 (en
Inventor
Koichi Yajima
Osamu Kawamoto
Tetsuto Yoneyama
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.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to US07/038,195 priority Critical patent/US4836868A/en
Priority to DE8787303284T priority patent/DE3779481T2/en
Priority to EP87303284A priority patent/EP0242187B1/en
Publication of JPS647501A publication Critical patent/JPS647501A/en
Application granted granted Critical
Publication of JP2727506B2 publication Critical patent/JP2727506B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • 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
    • H01F1/0578—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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits
    • H05K3/363—Assembling flexible printed circuits with other printed circuits by soldering
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10954—Other details of electrical connections
    • H05K2201/10977—Encapsulated connections

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To improve the coercive force of a permanent magnet by using specific additional elements to provide either a microcrystalline phase or a combination of microcrystal and amorphous phases. CONSTITUTION:A permanent magnet consists of {Ra(CebLa1-b)1-a}x(Fe1-zCoz)100-x-y-wByMw, (wherein R is at least one kind of rare earth elements including Y but excluding Ce or La, 5.5<=x<=20, 2<=y<15, 0<=z<=0.7, 0<w<=10, 0.80<=a<=1.00, 0<=b<=1, and M is at least one kind of elements among Ti, V, and Cr), and either a microcrystalline phase or a combination of microcrystal and amorphous phases Molten alloys of Fe-R-B and Fe-Co-R-B system in this composition is quenched and solidified at a very high speed by the so-called liquid quenching method. According to the constitution, the coercive force of the permanent magnet is improved.
JP62062198A 1986-04-15 1987-03-17 Permanent magnet and manufacturing method thereof Expired - Lifetime JP2727506B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US07/038,195 US4836868A (en) 1986-04-15 1987-04-14 Permanent magnet and method of producing same
DE8787303284T DE3779481T2 (en) 1986-04-15 1987-04-14 PERMANENT MAGNET AND METHOD FOR THE PRODUCTION THEREOF.
EP87303284A EP0242187B1 (en) 1986-04-15 1987-04-14 Permanent magnet and method of producing same

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP8685086 1986-04-15
JP61-86850 1986-04-15
JP9424786 1986-04-23
JP61-94247 1986-04-23
JP11108786 1986-05-15
JP61-111087 1986-05-15
JP2350987 1987-02-05
JP62-23509 1987-02-05

Publications (2)

Publication Number Publication Date
JPS647501A true JPS647501A (en) 1989-01-11
JP2727506B2 JP2727506B2 (en) 1998-03-11

Family

ID=27457977

Family Applications (2)

Application Number Title Priority Date Filing Date
JP62062198A Expired - Lifetime JP2727506B2 (en) 1986-04-15 1987-03-17 Permanent magnet and manufacturing method thereof
JP62090709A Expired - Lifetime JP2727507B2 (en) 1986-04-15 1987-04-15 Permanent magnet and manufacturing method thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP62090709A Expired - Lifetime JP2727507B2 (en) 1986-04-15 1987-04-15 Permanent magnet and manufacturing method thereof

Country Status (1)

Country Link
JP (2) JP2727506B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5250448A (en) * 1990-01-31 1993-10-05 Kabushiki Kaisha Toshiba Method of fabricating a miniaturized heterojunction bipolar transistor
JPH0696925A (en) * 1992-10-28 1994-04-08 Mitsubishi Steel Mfg Co Ltd Bond magnet
JPH06124817A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Permanent magnet powder
JPH06124825A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Sintered permanent magnet
JPH06124820A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Bond magnet
JPH06124824A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Sintered permanent magnet
JP2002520843A (en) * 1998-07-13 2002-07-09 サントク アメリカ，インコーポレイティド High-performance iron-rare earth-boron-refractory-cobalt nanocomposite
US6706124B2 (en) 2000-05-24 2004-03-16 Sumitomo Special Metals Co., Ltd. Permanent magnet including multiple ferromagnetic phases and method of producing the magnet
JP2004158842A (en) * 2002-10-17 2004-06-03 Neomax Co Ltd Nanocomposite magnet and its manufacturing method
US6790296B2 (en) 2000-11-13 2004-09-14 Neomax Co., Ltd. Nanocomposite magnet and method for producing same
JP2006015574A (en) * 2004-06-30 2006-01-19 Hitachi Koki Co Ltd Bench circular saw
US7004228B2 (en) 2000-10-06 2006-02-28 Santoku Corporation Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2580067B2 (en) * 1990-08-17 1997-02-12 富士電気化学株式会社 Manufacturing method of rare earth permanent magnet
JP4644986B2 (en) * 2001-07-16 2011-03-09 日立金属株式会社 Anisotropic iron-based permanent magnet and method for producing the same
JP4069727B2 (en) * 2001-11-20 2008-04-02 日立金属株式会社 Rare earth based bonded magnet compound and bonded magnet using the same
US6979409B2 (en) * 2003-02-06 2005-12-27 Magnequench, Inc. Highly quenchable Fe-based rare earth materials for ferrite replacement
JP5071409B2 (en) * 2009-02-24 2012-11-14 日立金属株式会社 Iron-based rare earth nanocomposite magnet and manufacturing method thereof
JP5366000B2 (en) * 2009-04-27 2013-12-11 日立金属株式会社 Rare earth permanent magnet and method for producing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609852A (en) * 1983-06-24 1985-01-18 ゼネラル・モ−タ−ズ・コ−ポレ−シヨン High energy stored rare earth-iron magnetic alloy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2513994B2 (en) * 1985-09-17 1996-07-10 ティーディーケイ株式会社 permanent magnet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609852A (en) * 1983-06-24 1985-01-18 ゼネラル・モ−タ−ズ・コ−ポレ−シヨン High energy stored rare earth-iron magnetic alloy

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5250448A (en) * 1990-01-31 1993-10-05 Kabushiki Kaisha Toshiba Method of fabricating a miniaturized heterojunction bipolar transistor
JPH0696925A (en) * 1992-10-28 1994-04-08 Mitsubishi Steel Mfg Co Ltd Bond magnet
JPH06124817A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Permanent magnet powder
JPH06124825A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Sintered permanent magnet
JPH06124820A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Bond magnet
JPH06124824A (en) * 1992-10-28 1994-05-06 Mitsubishi Steel Mfg Co Ltd Sintered permanent magnet
JP2002520843A (en) * 1998-07-13 2002-07-09 サントク アメリカ，インコーポレイティド High-performance iron-rare earth-boron-refractory-cobalt nanocomposite
US6706124B2 (en) 2000-05-24 2004-03-16 Sumitomo Special Metals Co., Ltd. Permanent magnet including multiple ferromagnetic phases and method of producing the magnet
US7004228B2 (en) 2000-10-06 2006-02-28 Santoku Corporation Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet
US6790296B2 (en) 2000-11-13 2004-09-14 Neomax Co., Ltd. Nanocomposite magnet and method for producing same
US6890392B2 (en) 2000-11-13 2005-05-10 Neomax Co., Ltd. Nanocomposite magnet and method for producing same
JP2004158842A (en) * 2002-10-17 2004-06-03 Neomax Co Ltd Nanocomposite magnet and its manufacturing method
JP2006015574A (en) * 2004-06-30 2006-01-19 Hitachi Koki Co Ltd Bench circular saw

Also Published As

Publication number Publication date
JP2727507B2 (en) 1998-03-11
JP2727506B2 (en) 1998-03-11
JPS647502A (en) 1989-01-11

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term