Magnetic head

Abstract

PURPOSE:To improve the wear resistance of a magnetic head and to attain long life, by forming a notch at least at corners of a contact part of the recording medium of a magnetic core and forming a glass layer including SiC on the notch. CONSTITUTION:Notches 11 are formed at corners of a sliding contact surface 5 and a gap forming surface 9 of a C shaped core blank material 1a and an I shaped core blank material 2a and at corners of the sliding contact surface 5 and an outer side surface 10. Wear-resistant glass including = 50wt% SiC (to the total weight of the glass) of <=10mu average particle diameter or <=50mu average fiber diameter, to a glass layer comparatively high content of a low melting point oxide such as PbO and B2O3, is poured in the core blank materials 1a and 2a located in a mold. After forming a glass layer 12 by cooling, the materials are cut off at a position shown in one-dot chain lines to obtain individual magnetic cores 3. Thus, the magnetic head less in the dispersion of durable life and with long life can be obtained.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S49912-B1January 10, 1974

NO-Patent Citations (0)

    Title

Cited By (1)

    Publication numberPublication dateAssigneeTitle
    JP-S62214504-ASeptember 21, 1987Fujitsu LtdMagnetic head core