JPS5637609A - Manufacture of magnetic head core material - Google Patents

Manufacture of magnetic head core material

Info

Publication number
JPS5637609A
JPS5637609A JP11385679A JP11385679A JPS5637609A JP S5637609 A JPS5637609 A JP S5637609A JP 11385679 A JP11385679 A JP 11385679A JP 11385679 A JP11385679 A JP 11385679A JP S5637609 A JPS5637609 A JP S5637609A
Authority
JP
Japan
Prior art keywords
alloy
head
head core
manufacture
hot water
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
JP11385679A
Other languages
Japanese (ja)
Other versions
JPS5831725B2 (en
Inventor
Kazuo Kurahashi
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 JP54113856A priority Critical patent/JPS5831725B2/en
Publication of JPS5637609A publication Critical patent/JPS5637609A/en
Publication of JPS5831725B2 publication Critical patent/JPS5831725B2/en
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
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust

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 prevent the occurrence of pitching at the cutting processing of a head core and to facilitate the manufacture of the head by improving a melting and casting method wherein the melting hot water of a sendust alloy is coagulated in a rotating magnetic field and crystal grains are fined. CONSTITUTION:When a magnetic head core material is made by casting a magnetic alloy of Fe-Al-Si group having principal ingredients of Al 3-8% (wt% and so forth), Si 3-12% and the remaining part Fe. The melting hot water of the magnetic alloy of the Fe-Al-Si group is coagulated in a rotating magnetic field and crystal grains are fined to prevent the occurrence of pitching at the cutting processing of a head core. In manufacturing the head, the melting hot water 5 of a sendust alloy (An alloy of Fe-Al-Si group) is poured into a mold 1 and a magnetic field is applied by a rotating magnetic field generation device 2. The melting hot water of the sendust alloy is coagulated by a cooling device 3 to attempt the minuteness of the crystal grains and the occurrence of pitching at the cutting processing of the head core is prevented to facilitate the manufacture of the head.
JP54113856A 1979-09-04 1979-09-04 Manufacturing method of magnetic head core material Expired JPS5831725B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54113856A JPS5831725B2 (en) 1979-09-04 1979-09-04 Manufacturing method of magnetic head core material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54113856A JPS5831725B2 (en) 1979-09-04 1979-09-04 Manufacturing method of magnetic head core material

Publications (2)

Publication Number Publication Date
JPS5637609A true JPS5637609A (en) 1981-04-11
JPS5831725B2 JPS5831725B2 (en) 1983-07-08

Family

ID=14622783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54113856A Expired JPS5831725B2 (en) 1979-09-04 1979-09-04 Manufacturing method of magnetic head core material

Country Status (1)

Country Link
JP (1) JPS5831725B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217672B1 (en) 1997-09-24 2001-04-17 Yide Zhang Magnetic annealing of magnetic alloys in a dynamic magnetic field

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217672B1 (en) 1997-09-24 2001-04-17 Yide Zhang Magnetic annealing of magnetic alloys in a dynamic magnetic field

Also Published As

Publication number Publication date
JPS5831725B2 (en) 1983-07-08

Similar Documents

Publication Publication Date Title
JPS57100705A (en) Permanent magnet
JPS56130449A (en) Amorphous cobalt alloy with very low magnetostriction and high permeability
JPS57101633A (en) Magnetic alloy used for head of magnetic recording, play back and manufacture thereof
JPS5637609A (en) Manufacture of magnetic head core material
JPS55152155A (en) Fine crystalline strip material for high permeability magnetic material, preparation and product thereof
JPS5775205A (en) Manufacture of al-alloy sheet for use of magnetic disk substrate
JPS558409A (en) Nondirectional magnetic steel plate of low watt loss
JPS5540004A (en) Continuous casting method
JPS644421A (en) Manufacture of anisotropic permanent magnet material
JPS5785950A (en) Semihard magnetic material
JPS56169722A (en) Manufacture of magnetic alloy
JPS56166349A (en) Manufacture of manganese-bismuth magnet
CA1178181A (en) Method of making permanent magnets and product
JPS5561365A (en) Production of molding of fe-a -si base alloy
JPS5775275A (en) Continuous casting method for steel
JPS551966A (en) Production of fe-a -si base alloy sheets
Glinn et al. Casting of Metal Articles Using Disintegrable Cores
JPS56142857A (en) Manufacture of permanent magnet material
Zal'tsman et al. Increasing the Life of Ingot Moulds for Electric Steel
Rickinson Microsegregation in Fe-Cr-C Alloys Solidified Under Steady State Conditions
Defretin Calculation of the Apparent Solidification Moduli of Castings. Modification of the Moduli by the Use of Chills and Insulators and by Heating or Cooling of the Molds
JPS5684152A (en) Casting mold made of furan resin
JPS5699067A (en) Method of casting cobalt group cast alloy
JPS5517211A (en) Casted rotor
Mohri et al. Unidirectional Solidification of 9% Nickel Cast Steel in Rotary Magnetic Field