CA1232158A - Manufacture of powder cores for electromagnetic apparatus - Google Patents

Manufacture of powder cores for electromagnetic apparatus

Info

Publication number
CA1232158A
CA1232158A CA000425858A CA425858A CA1232158A CA 1232158 A CA1232158 A CA 1232158A CA 000425858 A CA000425858 A CA 000425858A CA 425858 A CA425858 A CA 425858A CA 1232158 A CA1232158 A CA 1232158A
Authority
CA
Canada
Prior art keywords
manufacture
electromagnetic apparatus
temperature
powder cores
consolidated
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.)
Expired
Application number
CA000425858A
Other languages
French (fr)
Other versions
CA1256667C (en
Inventor
Amitava Datta
Davidson M Nathasingh
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.)
Allied Corp
Original Assignee
Allied 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=23451974&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1232158(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allied Corp filed Critical Allied Corp
Priority to CA000544815A priority Critical patent/CA1256667A/en
Application granted granted Critical
Publication of CA1232158A publication Critical patent/CA1232158A/en
Publication of CA1256667C publication Critical patent/CA1256667C/xx
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

MANUFACTURE OF POWDER CORES FOR ELECTROMAGNETIC APPARATUS Ferromagnetic glassy metal powder is compacted with static pressure of about 69 to 690 MPa at a temperature in the vicinity of the glass transition temperature and below the crystallization temperature thereof to form a consolidated, magnetic glassy metal alloy body. The resulting compacts can be annealed to enhance ferromagnetic properties. Consolidated bodies exhibit low core loss and permeabilities which remain constant over a wide frequency range.
CA000425858A 1982-04-15 1983-04-14 Manufacture of powder cores for electromagnetic apparatus Expired CA1232158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000544815A CA1256667A (en) 1982-04-15 1987-08-18 Manufacture of powder cores for electromagnetic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36861282A 1982-04-15 1982-04-15

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA000544815A Division CA1256667A (en) 1982-04-15 1987-08-18 Manufacture of powder cores for electromagnetic apparatus

Publications (2)

Publication Number Publication Date
CA1232158A true CA1232158A (en) 1988-02-02
CA1256667C CA1256667C (en) 1989-07-04

Family

ID=23451974

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000425858A Expired CA1232158A (en) 1982-04-15 1983-04-14 Manufacture of powder cores for electromagnetic apparatus

Country Status (4)

Country Link
EP (1) EP0092091B2 (en)
JP (2) JPS5916306A (en)
CA (1) CA1232158A (en)
DE (1) DE3364158D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594104A (en) * 1985-04-26 1986-06-10 Allied Corporation Consolidated articles produced from heat treated amorphous bulk parts
JPH0733521B2 (en) * 1988-07-01 1995-04-12 セイコー電子部品株式会社 Method for producing alloy powder for anisotropic bonded magnet
CA2040741C (en) * 1990-04-24 2000-02-08 Kiyonori Suzuki Fe based soft magnetic alloy, magnetic materials containing same, and magnetic apparatus using the magnetic materials
IT1242582B (en) * 1990-10-05 1994-05-16 Intermac Srl PROCESS FOR AUTOMATIC POLISHED WIRE PROCESSING OF THE EDGE OF GLASS SLABS OF ANY SHAPE AND MACHINE FOR THE EXECUTION OF SUCH PROCEDURE.
JPH11158502A (en) * 1997-11-26 1999-06-15 Masaaki Yagi Compound powder and method for compacting compound powder
US6930581B2 (en) * 2002-02-08 2005-08-16 Metglas, Inc. Current transformer having an amorphous fe-based core
JP4299152B2 (en) 2004-01-08 2009-07-22 日本碍子株式会社 Electromagnetic wave shielding case and manufacturing method thereof
JP2008141012A (en) * 2006-12-01 2008-06-19 Hitachi Powdered Metals Co Ltd Reactor
JP2018152449A (en) 2017-03-13 2018-09-27 株式会社東芝 Plural flat magnetic metal particles, pressed powder material, and rotary electric machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1309512A (en) * 1970-06-08 1973-03-14 Fuji Photo Film Co Ltd Developer sheets for pressure-sensitive recording
US3856513A (en) * 1972-12-26 1974-12-24 Allied Chem Novel amorphous metals and amorphous metal articles
DE2628207A1 (en) * 1976-06-23 1978-01-05 Draloric Electronic Soft magnetic moulded bodies mfr. - from mixture of powdered magnetic material and binder contg. a solvent for the binder
US4116728B1 (en) * 1976-09-02 1994-05-03 Gen Electric Treatment of amorphous magnetic alloys to produce a wide range of magnetic properties
AU503857B2 (en) * 1976-10-22 1979-09-20 Allied Chemical Corp. Continuous casting of metal strip
US4142571A (en) * 1976-10-22 1979-03-06 Allied Chemical Corporation Continuous casting method for metallic strips
US4215084A (en) * 1978-05-03 1980-07-29 The Battelle Development Corporation Method and apparatus for producing flake particles
JPS55152155A (en) * 1979-05-16 1980-11-27 Sumitomo Special Metals Co Ltd Fine crystalline strip material for high permeability magnetic material, preparation and product thereof
US4321090A (en) * 1980-03-06 1982-03-23 Allied Corporation Magnetic amorphous metal alloys
JPS57187357A (en) * 1981-05-15 1982-11-18 Aisin Seiki Co Ltd Soft magnetic resin composed of amorphous alloy
JPS58163555A (en) * 1982-03-24 1983-09-28 Nippon Yakin Kogyo Co Ltd Device for producing foil piece directly from molten material
JPS58163556A (en) * 1982-03-25 1983-09-28 Nippon Yakin Kogyo Co Ltd Producing device for foil piece
JPS58163557A (en) * 1982-03-25 1983-09-28 Nippon Yakin Kogyo Co Ltd Producing device for foil piece
JPS5939224B2 (en) * 1982-04-08 1984-09-21 日本冶金工業株式会社 Foil piece manufacturing equipment

Also Published As

Publication number Publication date
DE3364158D1 (en) 1986-07-24
EP0092091B1 (en) 1986-06-18
JPH0534814B2 (en) 1993-05-25
JPH0277505A (en) 1990-03-16
EP0092091A2 (en) 1983-10-26
EP0092091A3 (en) 1984-03-07
CA1256667C (en) 1989-07-04
JPS5916306A (en) 1984-01-27
EP0092091B2 (en) 1991-01-30

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Legal Events

Date Code Title Description
MKEX Expiry