JPS562602A - Heat treatment of amorphous magnetic element - Google Patents

Heat treatment of amorphous magnetic element

Info

Publication number
JPS562602A
JPS562602A JP7778279A JP7778279A JPS562602A JP S562602 A JPS562602 A JP S562602A JP 7778279 A JP7778279 A JP 7778279A JP 7778279 A JP7778279 A JP 7778279A JP S562602 A JPS562602 A JP S562602A
Authority
JP
Japan
Prior art keywords
cooling velocity
magnetic permeability
temperature
amorphous magnetic
magnetic element
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
JP7778279A
Other languages
Japanese (ja)
Inventor
Hiroshi Sakakima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7778279A priority Critical patent/JPS562602A/en
Publication of JPS562602A publication Critical patent/JPS562602A/en
Pending 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
    • H01F1/15341—Preparation processes therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To easily obtain an amorphous magnetic element having high magnetic permeability and preferable stability by heat treating the element under suitable control of treating temperature and cooling velocity. CONSTITUTION:An amorphous magnetic element having crystallizing temperature TX higher than curie point TC is retained at treating temperature TA for satisfying TC<TA<TX condition within a time range that no crystallization occur for predetermined time. This heat treatment removes the thermal strain occurred in the amorphous magnetic element immediately after fabrication. Then, the element is gradually cooled at a cooling velocity slower than 5 deg.C/min, which is indispensable heat treating step for reducing the ageing change of the magnetic permeability thereof. Then, when the element is heated to the curie point TC, the element is cooled at a cooling velocity faster than the cooling velocity alpha defined by the formula (I) at the temperature T, which is indispensable heat treating step for obtaining high magnetic permeability but cannot obtain high magnetic permeability at gradual cooling velocity.
JP7778279A 1979-06-20 1979-06-20 Heat treatment of amorphous magnetic element Pending JPS562602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7778279A JPS562602A (en) 1979-06-20 1979-06-20 Heat treatment of amorphous magnetic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7778279A JPS562602A (en) 1979-06-20 1979-06-20 Heat treatment of amorphous magnetic element

Publications (1)

Publication Number Publication Date
JPS562602A true JPS562602A (en) 1981-01-12

Family

ID=13643531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7778279A Pending JPS562602A (en) 1979-06-20 1979-06-20 Heat treatment of amorphous magnetic element

Country Status (1)

Country Link
JP (1) JPS562602A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127206U (en) * 1982-02-23 1983-08-29 株式会社ナブコ pressure fluid circuit
JPS59168003U (en) * 1983-04-27 1984-11-10 株式会社小松製作所 hydraulic circuit
US5252144A (en) * 1991-11-04 1993-10-12 Allied Signal Inc. Heat treatment process and soft magnetic alloys produced thereby

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127206U (en) * 1982-02-23 1983-08-29 株式会社ナブコ pressure fluid circuit
JPS59168003U (en) * 1983-04-27 1984-11-10 株式会社小松製作所 hydraulic circuit
US5252144A (en) * 1991-11-04 1993-10-12 Allied Signal Inc. Heat treatment process and soft magnetic alloys produced thereby

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