JPS5778616A - Manufacture of core for magnetic head - Google Patents

Manufacture of core for magnetic head

Info

Publication number
JPS5778616A
JPS5778616A JP15217180A JP15217180A JPS5778616A JP S5778616 A JPS5778616 A JP S5778616A JP 15217180 A JP15217180 A JP 15217180A JP 15217180 A JP15217180 A JP 15217180A JP S5778616 A JPS5778616 A JP S5778616A
Authority
JP
Japan
Prior art keywords
core
laminated plate
thin plate
plate part
insulating layer
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
JP15217180A
Other languages
Japanese (ja)
Inventor
Takayuki Kojima
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP15217180A priority Critical patent/JPS5778616A/en
Publication of JPS5778616A publication Critical patent/JPS5778616A/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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • G11B5/1475—Assembling or shaping of elements

Landscapes

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

Abstract

PURPOSE:To suppress damage of a metallic mold and also to save energy for the process, by laminating plural thin plates of a metallic magnetic material, forming an insulating layer between layers of these laminated plates, and cutting only a coupling part by which the core laminated plate part is connected with the thin plate. CONSTITUTION:A core laminated plate part 4 shaped like a desired core shape is placed so as to connect with an edge part 5 of a thin plate 1 by coupling parts 7, 8 of 1 or plural places in its border, and the circumference of the core laminated plate part 4 is punched from the belt-like thin plate 1 of a metallic magnetic material. Subsequently, an insulating layer s formed on one surface or both surfaces of the surface and the reverse side of the belt-like thin plate 1 which has been punched. From the thin plate 1 on which the insulating layer has been formed, the core laminated plate part 4 is continuously punched by press-punching so as to separate it from the edge part 5, and a complete laminated plate part 4A is obtained. In case of this punching, it is only the coupling parts that are cut substantially, and its cut part is short, therefore, a press metallic mold is influenced little. A magnet head core is formed by suporposing this core laminated plate part 4A.
JP15217180A 1980-10-31 1980-10-31 Manufacture of core for magnetic head Pending JPS5778616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15217180A JPS5778616A (en) 1980-10-31 1980-10-31 Manufacture of core for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15217180A JPS5778616A (en) 1980-10-31 1980-10-31 Manufacture of core for magnetic head

Publications (1)

Publication Number Publication Date
JPS5778616A true JPS5778616A (en) 1982-05-17

Family

ID=15534583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15217180A Pending JPS5778616A (en) 1980-10-31 1980-10-31 Manufacture of core for magnetic head

Country Status (1)

Country Link
JP (1) JPS5778616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994222A (en) * 1982-11-19 1984-05-30 Matsushita Electric Ind Co Ltd Magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994222A (en) * 1982-11-19 1984-05-30 Matsushita Electric Ind Co Ltd Magnetic head

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