JPS5613714A - Manufacture of magnet core - Google Patents

Manufacture of magnet core

Info

Publication number
JPS5613714A
JPS5613714A JP8814179A JP8814179A JPS5613714A JP S5613714 A JPS5613714 A JP S5613714A JP 8814179 A JP8814179 A JP 8814179A JP 8814179 A JP8814179 A JP 8814179A JP S5613714 A JPS5613714 A JP S5613714A
Authority
JP
Japan
Prior art keywords
powder
forged
molded
sintered
piece
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.)
Pending
Application number
JP8814179A
Other languages
Japanese (ja)
Inventor
Gakuo Sada
Masayuki Takamura
Kenzaburo Iijima
Norio Fukuda
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 Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP8814179A priority Critical patent/JPS5613714A/en
Publication of JPS5613714A publication Critical patent/JPS5613714A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To provide a core material of very high resistance to impact, by blending raw material powder to make a permalloy composition as a whole, molding the blended powder under pressure, sintering the molded powder and forging the sintered piece. CONSTITUTION:60-90wt% of Ni powder and 5-20wt% of Fe are used as basic constituents. At least one of Mo, Cu, Cr and the like is added as a reforming constituent to the basic constituents if necessary. For example, a 78-permalloy composition is made. The raw material powder is mixed well. The mixed powder is molded under pressue. The molded powder is sintered at about 900-1,430 deg.C under vacuum of 10<-2> Torr or less or under inert or reducing gas (-20 deg.C or less in dew point) for 1-20hr. The sintered piece is hot-forged or cold-forged into a desired shape at 800-1,200 deg.C. The forged piece is cut and ground, thereby providing a final product. According to this method, a magnet core material of very high resistance to impact is produced.
JP8814179A 1979-07-13 1979-07-13 Manufacture of magnet core Pending JPS5613714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8814179A JPS5613714A (en) 1979-07-13 1979-07-13 Manufacture of magnet core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8814179A JPS5613714A (en) 1979-07-13 1979-07-13 Manufacture of magnet core

Publications (1)

Publication Number Publication Date
JPS5613714A true JPS5613714A (en) 1981-02-10

Family

ID=13934648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8814179A Pending JPS5613714A (en) 1979-07-13 1979-07-13 Manufacture of magnet core

Country Status (1)

Country Link
JP (1) JPS5613714A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6299402A (en) * 1985-10-24 1987-05-08 Hitachi Metals Ltd Fe-ni alloy green compact iron magnetic core
JPS6299401A (en) * 1985-10-24 1987-05-08 Hitachi Metals Ltd Fe-ni alloy green compact magnetic core
US7744702B2 (en) 2006-10-31 2010-06-29 Tdk Corporation Soft magnetic alloy powder, compact, and inductance element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6299402A (en) * 1985-10-24 1987-05-08 Hitachi Metals Ltd Fe-ni alloy green compact iron magnetic core
JPS6299401A (en) * 1985-10-24 1987-05-08 Hitachi Metals Ltd Fe-ni alloy green compact magnetic core
US7744702B2 (en) 2006-10-31 2010-06-29 Tdk Corporation Soft magnetic alloy powder, compact, and inductance element

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