TW495772B - Soft magnetic alloy powder for electromagnetic wave absorbing sheet, electromagnetic wave absorbing sheet, and method for manufacturing them - Google Patents

Soft magnetic alloy powder for electromagnetic wave absorbing sheet, electromagnetic wave absorbing sheet, and method for manufacturing them Download PDF

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Publication number
TW495772B
TW495772B TW90116199A TW90116199A TW495772B TW 495772 B TW495772 B TW 495772B TW 90116199 A TW90116199 A TW 90116199A TW 90116199 A TW90116199 A TW 90116199A TW 495772 B TW495772 B TW 495772B
Authority
TW
Taiwan
Prior art keywords
electromagnetic wave
soft magnetic
alloy powder
wave absorbing
magnetic alloy
Prior art date
Application number
TW90116199A
Other languages
English (en)
Chinese (zh)
Inventor
Narihira Matsumoto
Kimiharu Ohta
Masutaro Hayase
Original Assignee
Sumitomo Spec Metals
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 Sumitomo Spec Metals filed Critical Sumitomo Spec Metals
Application granted granted Critical
Publication of TW495772B publication Critical patent/TW495772B/zh

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Classifications

    • 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
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H01F1/14733—Fe-Ni based alloys in the form of particles
    • H01F1/14741—Fe-Ni based alloys in the form of particles pressed, sintered or bonded together
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
TW90116199A 2000-06-29 2001-06-29 Soft magnetic alloy powder for electromagnetic wave absorbing sheet, electromagnetic wave absorbing sheet, and method for manufacturing them TW495772B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000195570 2000-06-29

Publications (1)

Publication Number Publication Date
TW495772B true TW495772B (en) 2002-07-21

Family

ID=18694221

Family Applications (1)

Application Number Title Priority Date Filing Date
TW90116199A TW495772B (en) 2000-06-29 2001-06-29 Soft magnetic alloy powder for electromagnetic wave absorbing sheet, electromagnetic wave absorbing sheet, and method for manufacturing them

Country Status (2)

Country Link
TW (1) TW495772B (fr)
WO (1) WO2002000954A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004165431A (ja) * 2002-11-13 2004-06-10 Sanyo Special Steel Co Ltd 電磁波吸収体用粉末
JP5700869B2 (ja) * 2013-09-13 2015-04-15 株式会社リケン 近傍界用電波吸収シート
JP6633037B2 (ja) * 2017-09-12 2020-01-22 株式会社リケン 近傍界用ノイズ抑制シート

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11140602A (ja) * 1997-11-05 1999-05-25 Mitsubishi Materials Corp 磁気シールド用偏平状Ｆｅ基合金粉末
JP2000063999A (ja) * 1998-08-19 2000-02-29 Mitsubishi Materials Corp 磁気シールド用偏平状Ｆｅ基合金粉末
JP2000068117A (ja) * 1998-08-20 2000-03-03 Daido Steel Co Ltd 電磁波吸収体及びその製造方法
JP2000100616A (ja) * 1998-09-17 2000-04-07 Nippon Telegr & Teleph Corp <Ntt> 磁気シールド用鱗片状Ｆｅ基合金粉末

Also Published As

Publication number Publication date
WO2002000954A1 (fr) 2002-01-03

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MM4A Annulment or lapse of patent due to non-payment of fees