Magnetic disk drive device having a liquid insulating material p

Details Magnetic disk drive device having a liquid insulating material p Magnetic disk drive device having a liquid insulating material p

1994-02-23

1995-11-28

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1702

Patent

active

054713579

ABSTRACT:
A multi-layered insulating film of different thicknesses and which is easily formed on an iron core of the multipole structure in a magnetic disk drive device. The thickness of the insulating film is reduced at the narrowly spaced proximal portions of the salient poles of an iron core. The thickness may also be reduced at a midpoint in the laminating direction of the core as compared with the top and bottom end portions in the laminating direction. The coating can more easily be applied by spraying the liquid insulating film on the proximal portions of the iron core which are difficult to access. The strength of the resultant insulating film is satisfactory.

REFERENCES:
patent: 4965476 (1990-10-01), Lin

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