CA2378417A1 - Ferromagnetic-metal-based powder, powder core using the same, and manufacturing method for ferromagnetic-metal-based powder - Google Patents

Ferromagnetic-metal-based powder, powder core using the same, and manufacturing method for ferromagnetic-metal-based powder Download PDF

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Publication number
CA2378417A1
CA2378417A1 CA 2378417 CA2378417A CA2378417A1 CA 2378417 A1 CA2378417 A1 CA 2378417A1 CA 2378417 CA2378417 CA 2378417 CA 2378417 A CA2378417 A CA 2378417A CA 2378417 A1 CA2378417 A1 CA 2378417A1
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CA
Canada
Prior art keywords
powder
metal
ferromagnetic
based powder
iron
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
CA 2378417
Other languages
French (fr)
Other versions
CA2378417C (en
Inventor
Masateru Ueta
Naomichi Nakamura
Satoshi Uenosono
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of CA2378417A1 publication Critical patent/CA2378417A1/en
Application granted granted Critical
Publication of CA2378417C publication Critical patent/CA2378417C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H01F1/20—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

Abstract

An iron-based powder including a heat-resistant insulate coating and a powder core are suggested. A paint containing silicone resin and pigment is added to a raw material powder primarily containing a ferromagnetic metal, especially, iron, agitation and mixing are performed and, thereafter, a drying treatment is performed so as to form a coating containing silicone resin and pigment on the surface of the iron-based powder. The ratio of the silicone resin content to the pigment content in the coating is preferably 0.01 or more, but less than 4.0 on a mass basis. The pigment is preferably at least one selected from the group consisting of metal oxides, metal nitrides, metal carbides, minerals, and glass. The paint may be sprayed to the iron-based powder in a fluidized state. A coating containing at least one of Si compounds, Ti compounds, Zr compounds, P compounds, and Cr compounds may be formed as a lower layer of the aforementioned coating.

Claims (23)

1. A ferromagnetic-metal-based powder containing a ferromagnetic metal powder, wherein the surface of the ferromagnetic metal powder is coated with a coating containing silicone resin and pigment.
2. The ferromagnetic-metal-based powder according to Claim 1, wherein the ferromagnetic metal powder is a powder primarily comprising iron, and the ferromagnetic-metal-based powder is an iron-based powder.
3. The ferromagnetic-metal-based powder according to Claim 2, wherein the powder primarily comprising iron is a pure iron powder.
4. The ferromagnetic-metal-based powder according to Claim 1 or Claim 2, comprising a coating containing at least one material selected from the group consisting of silicon compounds, titanium compounds, zirconium compounds, phosphorus compounds, and chromium compounds as a substrate layer of the coating containing silicone resin and pigment.
5. The ferromagnetic-metal-based powder according to Claim 1 or Claim 2, wherein the pigment is at least one selected from the group consisting of metal oxides, metal nitrides, metal carbides, minerals, and glass.
6. The ferromagnetic-metal-based powder according to Claim 1 or Claim 2, wherein the ratio of the silicone resin content to the pigment content in the coating containing silicone resin and pigment is 0.01 or more, but less than 4.0 on a mass basis.
7. The ferromagnetic-metal-based powder according to Claim 1 or Claim 2, wherein the adhesion amount of the coating containing silicone resin and pigment is 0.01 % to 25% by mass relative to the total amount of the ferromagnetic-metal-based powder.
8. A powder core made by pressing the ferromagnetic-metal-based powder according to Claim 1 or Claim 2.
9. A powder core made by pressing the ferromagnetic-metal-based powder according to Claim 4.
10. A powder core made by pressing and, thereafter,annealing the ferromagnetic-metal-based powder according to Claim 1 or Claim 2.
11. A powder core made by pressing and, thereafter,annealing the ferromagnetic-metal-based powder according to Claim 4.
12. The powder core according to Claim 8, wherein the density of the powder core is 95% or more of the true density.
13. The powder core according to Claim 9, wherein the density of the powder core is 95% or more of the true density.
14. The powder core according to Claim 10, wherein the density of the powder core is 95% or more of the true density.
15. The powder core according to Claim 11, wherein the density of the powder core is 95% or more of the true density.
16. A manufacturing method for a ferromagnetic-metal-based powder comprising the step of forming an insulate coating containing silicone resin and pigment on the surface of a ferromagnetic raw metal powder.
17. The manufacturing method for a ferromagnetic-metal-based powder according to Claim 16, comprising the step of spraying paint containing silicone resin and pigment on the raw material powder in a fluidized state so as to form an insulate coating on the surface of the raw material powder.
18. The manufacturing method for a ferromagnetic-metal-based powder according to Claim 16, comprising the steps of:
adding paint containing silicone resin and pigment to the raw material powder;
agitating and mixing the resulting mixture; and performing a drying treatment so as to form an insulate coating on the surface of the raw material powder.
19. The manufacturing method for a ferromagnetic-metal-based powder according to Claim 16, wherein the raw material powder is a powder primarily comprising iron, and an iron-based powder is formed.
20. The manufacturing method for a ferromagnetic-metal-based powder according to Claim 17, wherein the raw material powder is a powder primarily comprising iron, and an iron-based powder is formed.
21. The manufacturing method for a ferromagnetic-metal-based powder according to Claim 18, wherein the raw material powder is a powder primarily comprising iron, and an iron-based powder is formed.
22. The manufacturing method for a ferromagnetic-metal-based powder according to any one of Claim 16 to 21, wherein a coating containing at least one material selected from the group consisting of silicon compounds, titanium compounds, zirconium compounds, phosphorus compounds, and chromium compounds is formed beforehand on the surface of the raw material powder.
23. The manufacturing method for a ferromagnetic-metal-based powder including an insulate coating according to any one of Claim 16 to 21, wherein the ratio of the silicone resin content to the pigment content in the paint is 0.01 or more, but less than 4.0 on a mass basis.
CA 2378417 2001-03-27 2002-03-22 Ferromagnetic-metal-based powder, powder core using the same, and manufacturing method for ferromagnetic-metal-based powder Expired - Fee Related CA2378417C (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2001090884 2001-03-27
JP2001-090884 2001-03-27
JP2001-172529 2001-06-07
JP2001172529 2001-06-07
JP2001364658 2001-11-29
JP2001-364658 2001-11-29
JP2002-030142 2002-02-06
JP2002030142 2002-02-06

Publications (2)

Publication Number Publication Date
CA2378417A1 true CA2378417A1 (en) 2002-09-27
CA2378417C CA2378417C (en) 2009-11-24

Family

ID=27482141

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2378417 Expired - Fee Related CA2378417C (en) 2001-03-27 2002-03-22 Ferromagnetic-metal-based powder, powder core using the same, and manufacturing method for ferromagnetic-metal-based powder

Country Status (4)

Country Link
EP (1) EP1246209B1 (en)
CN (1) CN1381852A (en)
CA (1) CA2378417C (en)
DE (1) DE60215570D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN103959405A (en) * 2011-12-28 2014-07-30 大冶美有限公司 Composite soft magnetic material and production method therefor
CN117275927A (en) * 2023-11-20 2023-12-22 天通控股股份有限公司 Rust-proof high-performance soft magnetic metal powder and preparation method thereof

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JP4457682B2 (en) * 2004-01-30 2010-04-28 住友電気工業株式会社 Powder magnetic core and manufacturing method thereof
JP4507663B2 (en) * 2004-03-30 2010-07-21 住友電気工業株式会社 Method for producing soft magnetic material, soft magnetic powder and dust core
WO2009028486A1 (en) * 2007-08-30 2009-03-05 Sumitomo Electric Industries, Ltd. Soft magnetic material, dust core, method for producing soft magnetic material, and method for producing dust core
JP4802182B2 (en) * 2007-12-14 2011-10-26 Ｊｆｅスチール株式会社 Iron powder for dust cores
US20110175013A1 (en) * 2008-10-01 2011-07-21 Takeshi Takahashi Composite magnetic material and process for producing the composite magnetic material
CN101638549B (en) * 2009-09-09 2012-09-05 中国电力科学研究院 Anti-freezing heating functional coating for transmission line conductor
JP5482097B2 (en) * 2009-10-26 2014-04-23 Ｔｄｋ株式会社 Soft magnetic material, dust core and method for manufacturing the same
CN101982856B (en) * 2010-09-21 2012-02-15 李延军 Soft magnetic core used in penholder type automobile ignition coil and manufacturing method thereof
CN110111963A (en) 2010-12-23 2019-08-09 霍加纳斯股份有限公司 Soft magnetic powder
EP2509081A1 (en) 2011-04-07 2012-10-10 Höganäs AB New composition and method
CN102214510B (en) * 2011-05-23 2012-10-03 浙江科达磁电有限公司 Ferronickel soft magnetic material and manufacturing method thereof
CN102218532B (en) * 2011-06-10 2013-04-24 莱芜钢铁集团粉末冶金有限公司 Production equipment and method for insulating iron powder
CN102228988B (en) * 2011-06-28 2013-04-17 广州金南磁塑有限公司 Method for preparing high-strength soft magnetic powder iron core
WO2013051229A1 (en) * 2011-10-03 2013-04-11 パナソニック株式会社 Powder magnetic core and production method for same
JP5919144B2 (en) * 2012-08-31 2016-05-18 株式会社神戸製鋼所 Iron powder for dust core and method for producing dust core
CN104282406B (en) * 2013-07-04 2017-04-12 Tdk株式会社 Soft magnetic material composition and manufacturing method thereof, magnetic core, and coil type electronic component
WO2015092002A1 (en) 2013-12-20 2015-06-25 Höganäs Ab (Publ) Soft magnetic powder mix
CN105828982A (en) 2013-12-20 2016-08-03 霍加纳斯股份有限公司 Soft magnetic composite powder and component
CN104036907A (en) * 2014-06-05 2014-09-10 浙江大学 Method for preparing soft magnetic metal composite via warm compaction
CN104392836B (en) * 2014-09-25 2017-02-15 中钢集团安徽天源科技股份有限公司 Manufacturing method of anisotropic high-performance dry-pressed sintered ferrite multi-pole magnetic ring
EP3199264A1 (en) 2016-02-01 2017-08-02 Höganäs Ab (publ) New composition and method
CN106563801A (en) * 2016-11-09 2017-04-19 安徽孺子牛轴承有限公司 High temperature resistant and corrosion resistant bearing material and preparation method thereof
DE102017210941A1 (en) * 2017-06-28 2019-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. A method of manufacturing a soft magnetic composite and soft magnetic composite
EP3576110A1 (en) 2018-05-30 2019-12-04 Höganäs AB (publ) Ferromagnetic powder composition
CN109786096B (en) * 2018-12-14 2021-07-23 浙江工业大学 Two-dimensional layered metal soft magnetic composite material and preparation method and application thereof
CN110434326B (en) * 2019-08-01 2021-09-17 浙江工业大学 Method for coating lithium aluminum oxide insulating layer on surface of metal soft magnetic powder in situ
CN111974987B (en) * 2020-08-14 2022-09-13 泉州天智合金材料科技有限公司 Insulating coating layer of Fe-based soft magnetic powder and coating method thereof

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JPS5846044B2 (en) * 1979-04-14 1983-10-14 日本金属株式会社 powder iron core
US4601765A (en) * 1983-05-05 1986-07-22 General Electric Company Powdered iron core magnetic devices
US6102980A (en) * 1997-03-31 2000-08-15 Tdk Corporation Dust core, ferromagnetic powder composition therefor, and method of making

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103959405A (en) * 2011-12-28 2014-07-30 大冶美有限公司 Composite soft magnetic material and production method therefor
CN117275927A (en) * 2023-11-20 2023-12-22 天通控股股份有限公司 Rust-proof high-performance soft magnetic metal powder and preparation method thereof
CN117275927B (en) * 2023-11-20 2024-01-26 天通控股股份有限公司 Rust-proof high-performance soft magnetic metal powder and preparation method thereof

Also Published As

Publication number Publication date
EP1246209A2 (en) 2002-10-02
EP1246209A3 (en) 2002-12-18
CN1381852A (en) 2002-11-27
CA2378417C (en) 2009-11-24
EP1246209B1 (en) 2006-10-25
DE60215570D1 (en) 2006-12-07

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