JPS5526626A - Material for magnetic head and method of producing the same - Google Patents

Material for magnetic head and method of producing the same

Info

Publication number
JPS5526626A
JPS5526626A JP9885478A JP9885478A JPS5526626A JP S5526626 A JPS5526626 A JP S5526626A JP 9885478 A JP9885478 A JP 9885478A JP 9885478 A JP9885478 A JP 9885478A JP S5526626 A JPS5526626 A JP S5526626A
Authority
JP
Japan
Prior art keywords
diameter
crystal
magnetic
crystal particle
sec
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
JP9885478A
Other languages
Japanese (ja)
Other versions
JPS6151402B2 (en
Inventor
Masao Shigeta
Masaru Takayama
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP9885478A priority Critical patent/JPS5526626A/en
Publication of JPS5526626A publication Critical patent/JPS5526626A/en
Publication of JPS6151402B2 publication Critical patent/JPS6151402B2/ja
Granted 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
    • H01F1/14766—Fe-Si based alloys

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain a magnetic material for magnetic head by providing a special heat treatment for Fe-Si system alloy obtained by a quenching process to set its crystal diameter at a value of 0.01 to 0.1 mm. CONSTITUTION:A material containing 92 to 94 wt% of Fe and 8 to 6 wt% of Si is molten in a crystal case 1, and is pressurized by an Ar gas and then jetted from a nozzle. The material is then supplied to a roll making a rotation at a speed of 30 m/sec. and is thereafter quenched by a magnetic roll face to be formed into a sheet having a thickness of 0.02 to 0.2 mm. Subsequently, a strain is removed by processing the sheet at a temperature of 700 to 1200 deg.C for two hours and the thickness of a fine crystal particle is set in the range of 0.01 to 0.1 mm, suitable for obtaining a good magnetic characteristic. According to such a method, the material is freed from the strain in writing and the noise caused in sliding can be reduced also mechanical work be efficiently achieved. When the cooling speed is set less than 10 deg.C/sec., the crystal particle is grown over 0.1 mm in diameter to reduce the coercive force. On the other hand, a diameter of the crystal particle less than 0.01mm is not preferred because the coercive force becomes excessively large.
JP9885478A 1978-08-14 1978-08-14 Material for magnetic head and method of producing the same Granted JPS5526626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9885478A JPS5526626A (en) 1978-08-14 1978-08-14 Material for magnetic head and method of producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9885478A JPS5526626A (en) 1978-08-14 1978-08-14 Material for magnetic head and method of producing the same

Publications (2)

Publication Number Publication Date
JPS5526626A true JPS5526626A (en) 1980-02-26
JPS6151402B2 JPS6151402B2 (en) 1986-11-08

Family

ID=14230809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9885478A Granted JPS5526626A (en) 1978-08-14 1978-08-14 Material for magnetic head and method of producing the same

Country Status (1)

Country Link
JP (1) JPS5526626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107710U (en) * 1982-12-29 1984-07-20 パイオニア株式会社 magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107710U (en) * 1982-12-29 1984-07-20 パイオニア株式会社 magnetic head

Also Published As

Publication number Publication date
JPS6151402B2 (en) 1986-11-08

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