Magnetic head with a modified gap filler

Details Magnetic head with a modified gap filler Magnetic head with a modified gap filler

1984-06-28

1988-05-17

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Head

Core

360119, G11B 5235

Patent

active

047455055

ABSTRACT:
The magnetic head according to the invention has a magnetic core (1, 2) with pole tips (3, 4) which limit a gap (5) which is filled with a synthetic resin chosen from the group comprising epoxy resins, acrylic ester resins and polyester resins as a non-magnetizable material which adheres the pole tips to each other. The gap has a length of at most 0.5 .mu.m. A modifier may be used at the interfaces between the synthetic resin and the pole tips (3, 4) to further increase the tensile strength. The magnetic head is manufactured by applying to a moulding (1) of magnetizable material a solution of synthetic resin, by rotating the moulding about an axis at right angles to the coated surface and by placing a second moulding of magnetizable material (2) against it and curing the synthetic resin under pressure at an elevated temperature.

REFERENCES:
patent: 3544982 (1970-12-01), Hanak
patent: 4172318 (1979-10-01), Huntt
patent: 4368496 (1983-01-01), Kato et al.
U.S. Army, "Improved Metal Bonding with Silates", Manufacturing Technology Notes, Jul. 1980, Report M. ARLCD-TR-78042.
Leveque, "Bonding with Adhesive Transfer", IBM TDB, Aug. 1966, vol. 9, No. 3, p. 249.

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