Method for producing magnetic head core

Details Method for producing magnetic head core Method for producing magnetic head core

1989-03-31

1990-11-06

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360120, 360127, G11B 542

Patent

active

049674668

ABSTRACT:
A magnetic head core having a generally annular structure with an inner coil-winding aperture, and a magnetic gap which has a predetermined width and which is formed so as to extend in a direction across the annulus of the annular structure. The annular structure is formed by a plurality of ferrite core elements bonded together by direct solid-solid reaction bonding, with a non-magnetic layer of SiO or SiO.sub.2 interposed between two opposed portions of the ferrite core elements which define the magnetic gap. The non-magnetic layer defines the width of the magnetic gap.

REFERENCES:
patent: 3624897 (1971-12-01), Reade et al.
patent: 3634933 (1972-01-01), Hanak
patent: 3672045 (1972-06-01), Robertson
patent: 3688056 (1972-08-01), Wisely et al.
patent: 4675988 (1987-06-01), Matsuzawa
patent: 4711018 (1987-12-01), Matsuzawa

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