JPS5769522A - Manufacture of core for magnetic head - Google Patents

Manufacture of core for magnetic head

Info

Publication number
JPS5769522A
JPS5769522A JP14440280A JP14440280A JPS5769522A JP S5769522 A JPS5769522 A JP S5769522A JP 14440280 A JP14440280 A JP 14440280A JP 14440280 A JP14440280 A JP 14440280A JP S5769522 A JPS5769522 A JP S5769522A
Authority
JP
Japan
Prior art keywords
core
magnetic
lamination
layers
titled
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
JP14440280A
Other languages
Japanese (ja)
Inventor
Yoshio Kawakami
Atsushi Goto
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 JP14440280A priority Critical patent/JPS5769522A/en
Publication of JPS5769522A publication Critical patent/JPS5769522A/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 obtain the titled core having superior magnetic characteristics, wear resistance, etc. efficiently, by laminating core-shaped bodies, obtained by punching a magnetic thin plate of high magentic permeability whose surface is roughened, and by performing magnetic annealing after containing a granular material between layers. CONSTITUTION:A magnetic thin plate 4 of a high-magnetic-permeability material, such as ''Permalloy '' and ''Alperm '', is drawn out of a hoop material 5 and after its surface is made uneven through the corrosion of an automatic continuous corroding machine 7, it is punched by using press devices 10a and 10b to obtain coreshaped bodies 11, which are laminated and welded at necessary points 13 and 14, thus obtaining a core lamination 15. Then, the core lamination 15 is impregnated between layers with a dispersed solution obtained by dispersing inorganic insulator particles, having wear resistance superior to that of a core of ceramic, etc., in an organic solvent, and the solvent is vaporized to make the insulator particles stay between the layers of the lamination 15; and then the core lamination 15 is annealed magnetically to obtain the titled magnetic head core.
JP14440280A 1980-10-17 1980-10-17 Manufacture of core for magnetic head Pending JPS5769522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14440280A JPS5769522A (en) 1980-10-17 1980-10-17 Manufacture of core for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14440280A JPS5769522A (en) 1980-10-17 1980-10-17 Manufacture of core for magnetic head

Publications (1)

Publication Number Publication Date
JPS5769522A true JPS5769522A (en) 1982-04-28

Family

ID=15361327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14440280A Pending JPS5769522A (en) 1980-10-17 1980-10-17 Manufacture of core for magnetic head

Country Status (1)

Country Link
JP (1) JPS5769522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243704A (en) * 1988-08-04 1990-02-14 Nippon Mining Co Ltd Laminated magnetic core and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243704A (en) * 1988-08-04 1990-02-14 Nippon Mining Co Ltd Laminated magnetic core and manufacture thereof

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