EP0383035A3 - Magnetkerne aus Eisen-Silizium-Legierungspulver und Herstellungsverfahren - Google Patents

Magnetkerne aus Eisen-Silizium-Legierungspulver und Herstellungsverfahren Download PDF

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Publication number
EP0383035A3
EP0383035A3 EP19900100930 EP90100930A EP0383035A3 EP 0383035 A3 EP0383035 A3 EP 0383035A3 EP 19900100930 EP19900100930 EP 19900100930 EP 90100930 A EP90100930 A EP 90100930A EP 0383035 A3 EP0383035 A3 EP 0383035A3
Authority
EP
European Patent Office
Prior art keywords
alloy powder
manufacturing
powder magnetic
iron
same
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
EP19900100930
Other languages
English (en)
French (fr)
Other versions
EP0383035A2 (de
EP0383035B1 (de
Inventor
Tokuhiko C/O Nippon Steel Corporation Nishida
Masao C/O Nippon Steel Corporation Yamamiya
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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=26342241&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0383035(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP0383035A2 publication Critical patent/EP0383035A2/de
Publication of EP0383035A3 publication Critical patent/EP0383035A3/de
Application granted granted Critical
Publication of EP0383035B1 publication Critical patent/EP0383035B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
EP19900100930 1989-01-18 1990-01-17 Magnetkerne aus Eisen-Silizium-Legierungspulver und Herstellungsverfahren Revoked EP0383035B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP785389 1989-01-18
JP7853/89 1989-01-18
JP335899/89 1989-12-25
JP1335899A JPH0682577B2 (ja) 1989-01-18 1989-12-25 Ｆｅ―Ｓｉ系合金圧粉磁心およびその製造方法

Publications (3)

Publication Number Publication Date
EP0383035A2 EP0383035A2 (de) 1990-08-22
EP0383035A3 true EP0383035A3 (de) 1991-07-03
EP0383035B1 EP0383035B1 (de) 1995-10-04

Family

ID=26342241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900100930 Revoked EP0383035B1 (de) 1989-01-18 1990-01-17 Magnetkerne aus Eisen-Silizium-Legierungspulver und Herstellungsverfahren

Country Status (3)

Country Link
EP (1) EP0383035B1 (de)
JP (1) JPH0682577B2 (de)
DE (1) DE69022751T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610196A1 (de) * 1996-03-15 1997-09-18 Horst Dr Kleine Verfahren zur Herstellung von weichmagnetischen FeSi-Massekernen
JP2000040614A (ja) * 1998-05-18 2000-02-08 Daido Steel Co Ltd ノイズフィルタ―用コア材
KR100533097B1 (ko) 2000-04-27 2005-12-02 티디케이가부시기가이샤 복합자성재료와 이것을 이용한 자성성형재료, 압분 자성분말성형재료, 자성도료, 복합 유전체재료와 이것을이용한 성형재료, 압분성형 분말재료, 도료, 프리프레그및 기판, 전자부품
US6395193B1 (en) * 2000-05-03 2002-05-28 Lord Corporation Magnetorheological compositions
CN1295715C (zh) * 2002-01-17 2007-01-17 Nec东金株式会社 压粉磁心和使用该磁心的高频电抗器
US6788185B2 (en) 2002-01-17 2004-09-07 Nec Tokin Corporation Powder core and high-frequency reactor using the same
US6646532B2 (en) 2002-02-26 2003-11-11 Nec Tokin Corporation Powder core and reactor using the same
EP1341191A1 (de) * 2002-02-27 2003-09-03 NEC TOKIN Corporation Puderkern und Reaktor damit
KR20040042214A (ko) * 2002-11-13 2004-05-20 휴먼일렉스(주) Ｆｅ－Ｓｉ 합금분말을 이용한 ＳＭＤ 코아 제조방법
JP2009088502A (ja) * 2007-09-12 2009-04-23 Seiko Epson Corp 酸化物被覆軟磁性粉末の製造方法、酸化物被覆軟磁性粉末、圧粉磁心および磁性素子
JP5257743B2 (ja) * 2008-02-28 2013-08-07 日立金属株式会社 Ｆｅ基軟磁性粉末、その製造方法、および圧粉磁心
JP2010080978A (ja) * 2009-12-16 2010-04-08 Daido Steel Co Ltd 軟磁性合金粉末および圧粉磁芯
TWI574287B (zh) * 2010-06-09 2017-03-11 新東工業股份有限公司 Iron - based soft magnetic powder material
CN103065786A (zh) * 2011-10-22 2013-04-24 湖南康力新材料科技有限责任公司 一种高磁导率低功耗铁硅铝磁粉芯的制造方法
JP5650702B2 (ja) * 2012-10-15 2015-01-07 株式会社タムラ製作所 圧粉磁心とその製造方法
JP6382487B2 (ja) * 2013-01-24 2018-08-29 Tdk株式会社 磁芯およびコイル型電子部品
KR102047565B1 (ko) * 2014-11-04 2019-11-21 삼성전기주식회사 인덕터

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087781A1 (de) * 1982-02-26 1983-09-07 Kabushiki Kaisha Toshiba Kernmaterial
EP0088992A2 (de) * 1982-03-17 1983-09-21 Asea Ab Verfahren zur Herstellung eines Formkörpers aus weichmagnetischem Material durch Verbinden einer Pulvermasse
EP0135980A1 (de) * 1983-09-29 1985-04-03 Crucible Materials Corporation Verfahren zur Herstellung von Eisen-Silicium-Legierungsformlingen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087781A1 (de) * 1982-02-26 1983-09-07 Kabushiki Kaisha Toshiba Kernmaterial
EP0088992A2 (de) * 1982-03-17 1983-09-21 Asea Ab Verfahren zur Herstellung eines Formkörpers aus weichmagnetischem Material durch Verbinden einer Pulvermasse
EP0135980A1 (de) * 1983-09-29 1985-04-03 Crucible Materials Corporation Verfahren zur Herstellung von Eisen-Silicium-Legierungsformlingen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 212 (E-339) 29 August 1985, & JP-A-60 074602 (NIHON FERRITE KK) 26 April 1985, *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 212 (E-339) 29 August 1985, & JP-A-60 074603 (NIHON FERRITE KK) 26 April 1985, *

Also Published As

Publication number Publication date
JPH02290002A (ja) 1990-11-29
EP0383035A2 (de) 1990-08-22
EP0383035B1 (de) 1995-10-04
DE69022751T2 (de) 1996-04-04
JPH0682577B2 (ja) 1994-10-19
DE69022751D1 (de) 1995-11-09

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