JPS5758218A - Manufacture of magnetic head - Google Patents

Manufacture of magnetic head

Info

Publication number
JPS5758218A
JPS5758218A JP13158880A JP13158880A JPS5758218A JP S5758218 A JPS5758218 A JP S5758218A JP 13158880 A JP13158880 A JP 13158880A JP 13158880 A JP13158880 A JP 13158880A JP S5758218 A JPS5758218 A JP S5758218A
Authority
JP
Japan
Prior art keywords
glass
notch
heat treatment
air bubbles
performance
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
JP13158880A
Other languages
Japanese (ja)
Inventor
Shinichi Komatsu
Nobuyuki Sugishita
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 JP13158880A priority Critical patent/JPS5758218A/en
Publication of JPS5758218A publication Critical patent/JPS5758218A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • G11B5/1335—Assembling or shaping of elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To completely remove air bubbles in glass of the tape sliding surface, and also to stabilize the performance, by heating a member constituting a magnetic head at a temperature of >=550 deg.C, before glass bonding. CONSTITUTION:A core block 8 of single crystal ferrite which is provided with a notch part 10 leaving a 60mum track part 4, and a core block 9 which is provided with a winding notch 11 and a glass notch 12 are brought to heat treatment at 700 deg.C under reduced pressure for 30min. Subsequently, the blocks 8, 9 are butted by use of a suitable jig 16, a glass rod 15 is inserted into the notch grooves 11, 12, heat treatment is executed at 680 deg.C for 5min, the glass rod 15 is melted, and they are formed in one body. In this way, dirt of an organic matter which is stuck during the working process of a core material, by which air bubbles are caused is decomposed, and generation of air bubbles in glass is prevented completely. Furthermore, the magnetic characteristics by the working distortion of ferrite are restored by heat treatment, and the performance is stabilized.
JP13158880A 1980-09-24 1980-09-24 Manufacture of magnetic head Pending JPS5758218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13158880A JPS5758218A (en) 1980-09-24 1980-09-24 Manufacture of magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13158880A JPS5758218A (en) 1980-09-24 1980-09-24 Manufacture of magnetic head

Publications (1)

Publication Number Publication Date
JPS5758218A true JPS5758218A (en) 1982-04-07

Family

ID=15061558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13158880A Pending JPS5758218A (en) 1980-09-24 1980-09-24 Manufacture of magnetic head

Country Status (1)

Country Link
JP (1) JPS5758218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05277796A (en) * 1992-03-30 1993-10-26 Kubota Corp Device for discharging liquid and gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05277796A (en) * 1992-03-30 1993-10-26 Kubota Corp Device for discharging liquid and gas

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