Method for producing a magnetic head core

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

1984-12-19

1987-06-30

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360127, G11B 542

Patent

active

046759883

ABSTRACT:
A magnetic head core consisting of plural core elements of ferrite butted and bonded together through solid-solid reaction so as to form a generally annular magnetic circuit having a magnetic gap. At least opposed portions of the magnetic circuit which define the magnetic gap and provide magnetic-medium contacting surfaces are formed of a single crystal of ferrite. At least one of the plural core elements is originally an at least partially monocrystalline block of ferrite including a monocrystalline portion consisting of a ferrite single crystal, and at least one of the opposed portions defining the magnetic gap is monocrystallized as a result of growth of the ferrite single crystal of the monocrystalline portion toward the original ferrite polycrystal of the core elements.

REFERENCES:
patent: 3094772 (1963-06-01), Duinker
patent: 3479738 (1969-11-01), Hanak
Patent Abstract 56-29823, vol. 5, No. 84 (P-64) (756) Jun. 2, 1981 "Magnetic Head of Junction Ferrite".
Patent Abstract 54-134613, vol. 3, No. 155 (E-160) Dec. 19, 1979 "Magnetic Head".
Patent Abstract 57-18011, vol. 6, No. 82 (P-116) (960) May 20, 1982 "Production of Ring-Shaped Magnetic Head".

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