KR920007008A - 자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말 및 접합자석 - Google Patents

자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말 및 접합자석 Download PDF

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KR920007008A
KR920007008A KR1019910016705A KR910016705A KR920007008A KR 920007008 A KR920007008 A KR 920007008A KR 1019910016705 A KR1019910016705 A KR 1019910016705A KR 910016705 A KR910016705 A KR 910016705A KR 920007008 A KR920007008 A KR 920007008A
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South Korea
Prior art keywords
rare earth
permanent magnet
magnet powder
corrosion resistance
recrystallized
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KR1019910016705A
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English (en)
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KR100204344B1 (ko
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료오지 나카야마
타쿠오 타케시타
타모쯔 오가와
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후지무라 마사야
미쯔비시 마테리알 카부시키가이샤
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Publication of KR920007008A publication Critical patent/KR920007008A/ko
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    • 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
    • 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

Abstract

내용 없음

Description

자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말 및 접합자석
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. Y를 함유하는 희토류원소중 적어도 1종류(이하 R로 표시한다)와 Fe, Co 및 B를 주성분으로 하는 R-Fe-Co-B계 영구자석분말의 각각의 분말이, 원자백분율에서 R:10-20%, Co:0.1-50%, B:3-20%, Ti, V, Nb, Ta, Al 및 Si 중의 1종류 또는 2종류 이상의 합계량 0.001-5.0%를 함유하고, 나머지가 Fe 및 불가피한 불순물로 된 조성과, 정방정구조로 된 R2(Fe, Co)14B형 금속간 화합물상을 주상으로 하는 재결정입자가 집합한 재결정집합조직을 갖고, 전기한 재결정집합조직은, 각각의 재결정입자의 최소지름(a)과 최대지름(b)의 비 b/a의 값이 2미만인 형상의 재결정입자가 전체 재결정입자의 50용량%이상 차지하고, 또한 전기한 재결정집합조직을 구성하는 재결정입자의 평균재결정입자지름이 0.05-20㎛인 것을 특징으로 하는 자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말.　
  2. 제1항에 있어서, 전기한 평균 재결정입자지름이 바람직하게는 0.05-3㎛인 것을 특징으로 하는, 자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말.
  3. 제1항 또는 2항에 있어서, 전기한 재결정입자가 집합한 재결정집합조직이 실질적으로 R2(Fe, Co)14B형 금속간 화합물상만으로 이루어지는 것을 특징으로 하는 자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말.
  4. 제1항 또는 2항, 3항에 있어서, 자기적 이방성 및 내식성이 우수한 희토류-Fe-Co-B계 영구자석분말로 제조된 것을 특징으로 하는 희토류-Fe-Co-B계 영구자석분말.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910016705A 1990-09-26 1991-09-25 자기적 이방성 및 내식성이 우수한 희토류-철-코발트-붕소계 영구자석분말 및 접합자석 KR100204344B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2256705A JP2586199B2 (ja) 1990-09-26 1990-09-26 磁気的異方性および耐食性に優れた希土類―Ｆｅ―Ｃｏ―Ｂ系永久磁石粉末およびボンド磁石
JP2-256705 1990-09-26

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KR920007008A true KR920007008A (ko) 1992-04-28
KR100204344B1 KR100204344B1 (ko) 1999-06-15

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KR1019910016705A KR100204344B1 (ko) 1990-09-26 1991-09-25 자기적 이방성 및 내식성이 우수한 희토류-철-코발트-붕소계 영구자석분말 및 접합자석

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JP (1) JP2586199B2 (ko)
KR (1) KR100204344B1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633582B1 (en) * 1992-12-28 1998-02-25 Aichi Steel Works, Ltd. Rare earth magnetic powder, method of its manufacture
US5849109A (en) * 1997-03-10 1998-12-15 Mitsubishi Materials Corporation Methods of producing rare earth alloy magnet powder with superior magnetic anisotropy
US6444052B1 (en) 1999-10-13 2002-09-03 Aichi Steel Corporation Production method of anisotropic rare earth magnet powder
US6955729B2 (en) 2002-04-09 2005-10-18 Aichi Steel Corporation Alloy for bonded magnets, isotropic magnet powder and anisotropic magnet powder and their production method, and bonded magnet

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0778269B2 (ja) * 1983-05-31 1995-08-23 住友特殊金属株式会社 永久磁石用希土類・鉄・ボロン系正方晶化合物
JPS62276803A (ja) * 1985-08-13 1987-12-01 Seiko Epson Corp 希土類−鉄系永久磁石
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
JPH01103805A (ja) * 1987-07-30 1989-04-20 Tdk Corp 永久磁石
JPS6445103A (en) * 1987-08-13 1989-02-17 Tdk Corp Manufacture of rare earth alloy magnet

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JP2586199B2 (ja) 1997-02-26
JPH04133407A (ja) 1992-05-07
KR100204344B1 (ko) 1999-06-15

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