EP0522177A1 - Anisotroper Seltenerd-Magnet - Google Patents

Anisotroper Seltenerd-Magnet Download PDF

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Publication number
EP0522177A1
EP0522177A1 EP92903728A EP92903728A EP0522177A1 EP 0522177 A1 EP0522177 A1 EP 0522177A1 EP 92903728 A EP92903728 A EP 92903728A EP 92903728 A EP92903728 A EP 92903728A EP 0522177 A1 EP0522177 A1 EP 0522177A1
Authority
EP
European Patent Office
Prior art keywords
atomic
molded body
grain diameter
anisotropic magnet
crystallized
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
EP92903728A
Other languages
English (en)
French (fr)
Other versions
EP0522177A4 (en
EP0522177B2 (de
EP0522177B1 (de
Inventor
Takuo Chuo-Kenkyusho Takeshita
Ryoji Chuo-Kenkyusho Nakayama
Yoshinari Chuo-Kenkyusho Ishii
Tamotsu Chuo-Kenkyusho Ogawa
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.)
Diamet Corp
Original Assignee
Mitsubishi Materials 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27463963&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0522177(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP3060828A external-priority patent/JP2773444B2/ja
Priority claimed from JP03060833A external-priority patent/JP3092672B2/ja
Priority claimed from JP03060837A external-priority patent/JP3092673B2/ja
Priority claimed from JP06086091A external-priority patent/JP3196224B2/ja
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Publication of EP0522177A1 publication Critical patent/EP0522177A1/de
Publication of EP0522177A4 publication Critical patent/EP0522177A4/en
Publication of EP0522177B1 publication Critical patent/EP0522177B1/de
Application granted granted Critical
Publication of EP0522177B2 publication Critical patent/EP0522177B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F1/0576—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 pressed, e.g. hot working
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement
EP92903728A 1991-01-28 1992-01-28 Anisotroper Seltenerd-Magnet Expired - Lifetime EP0522177B2 (de)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP3060828A JP2773444B2 (ja) 1991-01-28 1991-01-28 希土類−Ｆｅ−Ｂ系異方性磁石
JP60828/91 1991-01-28
JP6082891 1991-01-28
JP60833/91 1991-01-30
JP6083391 1991-01-30
JP03060833A JP3092672B2 (ja) 1991-01-30 1991-01-30 希土類−Ｆｅ−Ｃｏ−Ｂ系異方性磁石
JP60837/91 1991-01-31
JP6083791 1991-01-31
JP03060837A JP3092673B2 (ja) 1991-01-31 1991-01-31 希土類−Ｆｅ−Ｂ系異方性磁石
JP6086091 1991-02-01
JP60860/91 1991-02-01
JP06086091A JP3196224B2 (ja) 1991-02-01 1991-02-01 希土類−Ｆｅ−Ｃｏ−Ｂ系異方性磁石
PCT/JP1992/000073 WO1992013353A1 (fr) 1991-01-28 1992-01-28 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

Publications (4)

Publication Number Publication Date
EP0522177A1 true EP0522177A1 (de) 1993-01-13
EP0522177A4 EP0522177A4 (en) 1993-09-15
EP0522177B1 EP0522177B1 (de) 1995-07-12
EP0522177B2 EP0522177B2 (de) 2003-07-30

Family

ID=27463963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92903728A Expired - Lifetime EP0522177B2 (de) 1991-01-28 1992-01-28 Anisotroper Seltenerd-Magnet

Country Status (4)

Country Link
EP (1) EP0522177B2 (de)
CA (1) CA2079223A1 (de)
DE (1) DE69203405T3 (de)
WO (1) WO1992013353A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352301A (en) * 1992-11-20 1994-10-04 General Motors Corporation Hot pressed magnets formed from anisotropic powders

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63178505A (ja) * 1987-01-20 1988-07-22 Hitachi Metals Ltd 異方性Ｒ−Ｆｅ−Ｂ−Ｍ系永久磁石
JPS63211706A (ja) * 1987-02-27 1988-09-02 Hitachi Metals Ltd ボンド磁石用磁粉の製造方法
JPS63211705A (ja) * 1987-02-27 1988-09-02 Hitachi Metals Ltd 異方性永久磁石及びその製造方法
JPS63235406A (ja) * 1987-03-24 1988-09-30 Daido Steel Co Ltd ラジアル異方性永久磁石の製造方法
EP0304054A2 (de) * 1987-08-19 1989-02-22 Mitsubishi Materials Corporation Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren
JPS6473602A (en) * 1987-09-14 1989-03-17 Daido Steel Co Ltd Manufacture of permanent magnet
EP0101552B1 (de) * 1982-08-21 1989-08-09 Sumitomo Special Metals Co., Ltd. Magnetische Materialien, permanente Magnete und Verfahren zu deren Herstellung
JPH01257308A (ja) * 1987-09-09 1989-10-13 Hitachi Metals Ltd ボイスコイルモーター用磁石
JPH02138706A (ja) * 1988-11-18 1990-05-28 Daido Steel Co Ltd 異方性永久磁石
JPH02263404A (ja) * 1989-04-04 1990-10-26 Hitachi Metals Ltd 希土類鉄系永久磁石
EP0306599B1 (de) * 1987-09-10 1994-06-08 Hitachi Metals, Ltd. Verfahren zur Herstellung von magnetisch anisotropem Magnetmaterial aus Nd-Fe-B

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61295342A (ja) * 1985-06-24 1986-12-26 Hitachi Metals Ltd 永久磁石合金の製造方法
JPS6217149A (ja) * 1985-07-16 1987-01-26 Sumitomo Special Metals Co Ltd 高性能焼結永久磁石材料の製造方法
JPS62202506A (ja) * 1985-11-21 1987-09-07 Tdk Corp 永久磁石およびその製法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101552B1 (de) * 1982-08-21 1989-08-09 Sumitomo Special Metals Co., Ltd. Magnetische Materialien, permanente Magnete und Verfahren zu deren Herstellung
JPS63178505A (ja) * 1987-01-20 1988-07-22 Hitachi Metals Ltd 異方性Ｒ−Ｆｅ−Ｂ−Ｍ系永久磁石
JPS63211706A (ja) * 1987-02-27 1988-09-02 Hitachi Metals Ltd ボンド磁石用磁粉の製造方法
JPS63211705A (ja) * 1987-02-27 1988-09-02 Hitachi Metals Ltd 異方性永久磁石及びその製造方法
JPS63235406A (ja) * 1987-03-24 1988-09-30 Daido Steel Co Ltd ラジアル異方性永久磁石の製造方法
EP0304054A2 (de) * 1987-08-19 1989-02-22 Mitsubishi Materials Corporation Magnetisches Seltenerd-Eisen-Bor-Puder und sein Herstellungsverfahren
JPH01257308A (ja) * 1987-09-09 1989-10-13 Hitachi Metals Ltd ボイスコイルモーター用磁石
EP0306599B1 (de) * 1987-09-10 1994-06-08 Hitachi Metals, Ltd. Verfahren zur Herstellung von magnetisch anisotropem Magnetmaterial aus Nd-Fe-B
JPS6473602A (en) * 1987-09-14 1989-03-17 Daido Steel Co Ltd Manufacture of permanent magnet
JPH02138706A (ja) * 1988-11-18 1990-05-28 Daido Steel Co Ltd 異方性永久磁石
JPH02263404A (ja) * 1989-04-04 1990-10-26 Hitachi Metals Ltd 希土類鉄系永久磁石

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF APPLIED PHYSICS. vol. 61, no. 8, 15 April 1987, NEW YORK US page 3778 R.K.MISHRA *
PATENT ABSTRACTS OF JAPAN vol. 12, no. 500 (E-699)27 December 1988 & JP-A-63 211 706 ( HITACHI LTD ) 2 September 1988 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 292 (E-782)6 July 1989 & JP-A-01 073 602 ( DAIDO STEEL CO ) 17 March 1989 *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 12 (E-871)11 January 1989 & JP-A-01 257 308 ( HITACHI LTD ) 13 October 1989 *
See also references of WO9213353A1 *

Also Published As

Publication number Publication date
CA2079223A1 (en) 1992-07-29
EP0522177A4 (en) 1993-09-15
EP0522177B2 (de) 2003-07-30
DE69203405T2 (de) 1996-02-15
WO1992013353A1 (fr) 1992-08-06
DE69203405D1 (de) 1995-08-17
DE69203405T3 (de) 2004-05-06
EP0522177B1 (de) 1995-07-12

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