JPS57186306A - Magnetic core and manufacture thereof - Google Patents

Magnetic core and manufacture thereof

Info

Publication number
JPS57186306A
JPS57186306A JP56069391A JP6939181A JPS57186306A JP S57186306 A JPS57186306 A JP S57186306A JP 56069391 A JP56069391 A JP 56069391A JP 6939181 A JP6939181 A JP 6939181A JP S57186306 A JPS57186306 A JP S57186306A
Authority
JP
Japan
Prior art keywords
strips
magnetic
resin
magnetic core
thin
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
JP56069391A
Other languages
Japanese (ja)
Other versions
JPS6137762B2 (en
Inventor
Hideo Suzuki
Sadami Tomita
Tateo Tamamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56069391A priority Critical patent/JPS57186306A/en
Publication of JPS57186306A publication Critical patent/JPS57186306A/en
Publication of JPS6137762B2 publication Critical patent/JPS6137762B2/ja
Granted 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
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To obtain a magnetic core which has good rectangular hysteresis characteristic and exciting current characteristic by winding in multiple layers a thin amorphous magnetic alloy strip on an annular unit made of nonmagnetic material having large thermal expansion coefficient, heat treating it at 300-450 deg.C and then enclosing the thin strip with normal temperature curable flexible resin. CONSTITUTION:An amorphous magnetic alloy strip 2 is toroidally wound in multiple layers on a metallic ring 1 made of copper or aluminum having a thermal expansion coefficient larger than a thin amorphous magnetic alloy film while applying a tension thereto. This strips are then heated at 300-450 deg.C, a force to expand the strips 2 is produced in the ring 1, an external magnetic field is applied in this state, and the strips are heat treated in the magnetic field. Thereafter, the strips 2 are molded with a normal temperature curable resin 3, and the deterioration in the characteristics of the strips 2 due to the solidification and contraction of the resin is avoided. In this manner, a magnetic core which is adapted for a magnetic phase shifter and a magnetic amplifier can be obtained.
JP56069391A 1981-05-11 1981-05-11 Magnetic core and manufacture thereof Granted JPS57186306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069391A JPS57186306A (en) 1981-05-11 1981-05-11 Magnetic core and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069391A JPS57186306A (en) 1981-05-11 1981-05-11 Magnetic core and manufacture thereof

Publications (2)

Publication Number Publication Date
JPS57186306A true JPS57186306A (en) 1982-11-16
JPS6137762B2 JPS6137762B2 (en) 1986-08-26

Family

ID=13401247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069391A Granted JPS57186306A (en) 1981-05-11 1981-05-11 Magnetic core and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS57186306A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132111A (en) * 1983-01-19 1984-07-30 Kijima Musen Kk Core in winding part
JPS6127320U (en) * 1984-07-23 1986-02-18 利昌工業株式会社 Iron core for winding of electrical equipment
EP1320110A1 (en) * 2001-12-17 2003-06-18 Vacuumschmelze GmbH & Co. KG Production process for nanocristalline toroidal cores
WO2007119412A1 (en) * 2006-03-23 2007-10-25 Hitachi Metals, Ltd. Closed magnetic circuit magnetic core and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173923A (en) * 1974-12-24 1976-06-26 Tohoku Daigaku Kinzoku Zairyo
JPS565959A (en) * 1979-05-31 1981-01-22 Tdk Corp Heat treatment of amorphous magnetic alloy material
JPS5629310A (en) * 1979-08-17 1981-03-24 Toshiba Corp Superconductive magnet device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173923A (en) * 1974-12-24 1976-06-26 Tohoku Daigaku Kinzoku Zairyo
JPS565959A (en) * 1979-05-31 1981-01-22 Tdk Corp Heat treatment of amorphous magnetic alloy material
JPS5629310A (en) * 1979-08-17 1981-03-24 Toshiba Corp Superconductive magnet device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132111A (en) * 1983-01-19 1984-07-30 Kijima Musen Kk Core in winding part
JPH0354453B2 (en) * 1983-01-19 1991-08-20
JPS6127320U (en) * 1984-07-23 1986-02-18 利昌工業株式会社 Iron core for winding of electrical equipment
JPH0447936Y2 (en) * 1984-07-23 1992-11-12
EP1320110A1 (en) * 2001-12-17 2003-06-18 Vacuumschmelze GmbH & Co. KG Production process for nanocristalline toroidal cores
WO2007119412A1 (en) * 2006-03-23 2007-10-25 Hitachi Metals, Ltd. Closed magnetic circuit magnetic core and method for manufacturing the same

Also Published As

Publication number Publication date
JPS6137762B2 (en) 1986-08-26

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