KR960005636A - 압연코어 - Google Patents

압연코어 Download PDF

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Publication number
KR960005636A
KR960005636A KR1019950021507A KR19950021507A KR960005636A KR 960005636 A KR960005636 A KR 960005636A KR 1019950021507 A KR1019950021507 A KR 1019950021507A KR 19950021507 A KR19950021507 A KR 19950021507A KR 960005636 A KR960005636 A KR 960005636A
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South Korea
Prior art keywords
core
ferromagnetic metal
metal particles
powder
less
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KR1019950021507A
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English (en)
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KR100187347B1 (ko
Inventor
히데하루 모로
나오키 카와쿠보
히데아키 소네
히데토시 스즈키
Original Assignee
사토 히로시
티디케이 가부시기가이샤
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Publication of KR960005636A publication Critical patent/KR960005636A/ko
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Publication of KR100187347B1 publication Critical patent/KR100187347B1/ko

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • 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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • 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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

본 발명은, 각종전기·전자기기에 사용되는 압분코어에 관한 것으로서, 코어손실이 작은 압분코어를 염가로 제공하고, 또 코어손실이 작고 또한 기계적강도가 높은 압분코어를 제공하는 것을 목적으로한것이며, 그 구성에 있어서, 강자성금속분말과 절연제를 압분한 후, 어니일링한 코어이며, 상기 강자성금속분말이, Fe, Al 및 Si를 함유한 거의 구상의 강자성금속입자로 구성되어 있는 것을 특징으로 한다. 이로서, 100KHz에 있어서의 투자율을 50이상으로 할 수 있고, 100KHz에서 100mT의 자계를 인가한때의 코어손실을 450KW/㎥이하로 할 수 있고, 25KHz에서 200mT의 자계를 인가했을때의 코어손실을 300KW/㎥이하로 할 수 있는 압분코어를 실현할 수 있다.

Description

압분코어
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 가스애트마이즈법에 의해 제조한 센더스트분말의 주사형전자현미경사진.
제2도는 용해주조한 잉곳(ingot)을 분쇄해서 제조한 센더스트분말의 주사형전자현미경사진.
제3도는 역률(力率)개선회로를 포함한 회로의 일예를 표시한 회로도.

Claims (6)

  1. 강자성금속분말과 절연제를 압분한 후, 어니일링한 코어로서, 상기 강자성금속분말이, Fe, Al 및 Si를 함유한 거의 구상의 강자성금속입자로 구성되어 있는 것을 특징으로 하는 압분코어.
  2. 제1항에 있어서, 강자성금속입자를 소직경의 것으로부터 적산하고, 강자성금속부말전체의 50중량%로 되었을때의 입자직경D50이 15∼65㎛인 것을 특징으로 하는 압분코어.
  3. 제2항에 있어서, 강자성금속입자를 소직경의 것으로부터 적산하고, 강자성금속분말전체의 10중량%로 되었을때의 입자직경 D10이 6∼20㎛이고, 강자성금속분말전체의 90중량%가 되있을때의 입자직경 D90이 25∼100㎛인 것을 특징으로 하는 압분코어.
  4. 제1항∼제3항의 어느 한항에 있어서, 압분코어에 함유된 강자성금속입자의 격자변형이 10%이하인 것을 특징으로 하는 압분코어.
  5. 제1항∼제4항의 어느 한항에 있어서, 압분코어에 함유된 강자성금속입자의 보자력이 0.350e이하인 것을 특징으로 하는 압분코어.
  6. 제1항∼제5항에 어느 한항에 있어서, 100KHz에 있어서의 투자율이 50이상이고, 100KHz에서 100mT의 자계를 인가했을때의 코어손실이 450KW/㎥이하이고, 25KHz에서 200mT의 자계를 인가했을때의 코어손실이 300KW/㎥이하인 것을 특징으로 하는 압분코어.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950021507A 1994-07-22 1995-07-21 압연코어 KR100187347B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6192207A JPH0837107A (ja) 1994-07-22 1994-07-22 圧粉コア
JP94-192207 1994-07-22

Publications (2)

Publication Number Publication Date
KR960005636A true KR960005636A (ko) 1996-02-23
KR100187347B1 KR100187347B1 (ko) 1999-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950021507A KR100187347B1 (ko) 1994-07-22 1995-07-21 압연코어

Country Status (4)

Country Link
US (1) US5651841A (ko)
JP (1) JPH0837107A (ko)
KR (1) KR100187347B1 (ko)
CN (1) CN1122527A (ko)

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* Cited by examiner, † Cited by third party
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KR100746533B1 (ko) * 2000-08-25 2007-08-06 다이도 토쿠슈고 가부시키가이샤 압분자심

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JPS62247004A (ja) * 1986-04-18 1987-10-28 Hitachi Metals Ltd 金属圧粉磁心の製造方法
JPH0750648B2 (ja) * 1986-04-23 1995-05-31 日立金属株式会社 Ｆｅ−Ｓｉ−Ａ１系合金圧粉磁心の製造方法
JP2737007B2 (ja) * 1989-07-14 1998-04-08 キヤノン株式会社 信号検出器
JP2939815B2 (ja) * 1990-04-10 1999-08-25 株式会社トーキン 形状異方性軟磁性合金粉末の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100746533B1 (ko) * 2000-08-25 2007-08-06 다이도 토쿠슈고 가부시키가이샤 압분자심

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