Method and apparatus for producing magnetic recording medium

Details Method and apparatus for producing magnetic recording medium Method and apparatus for producing magnetic recording medium

1994-09-02

1995-09-05

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

118 38, 118 50, 118500, 427131, 427132, 427177, 427294, 427349, 427350, H01F 1002

Patent

active

054477484

ABSTRACT:
There is provided an apparatus for producing a magnetic recording medium which enables a good-quality magnetic recording medium to be produced with an improved production efficiency. This apparatus comprises a back-coat layer-coating vacuum chamber, a magnetic layer-coating vacuum chamber, a lubricant layer-coating vacuum chamber and a slitting vacuum chamber provided in a housing under vacuum, wherein the back-coat layer-coating vacuum chamber includes a melting pot disposed under a substrate and containing a metal, an electron beam-emitting device, and a guiding roller for reversing the surfaces of the substrate; the magnetic layer-coating vacuum chamber includes a melting pot disposed under the substrate and containing a magnetic substance, an electron beam-emitting device, and an oxidizing gas introduction means; the lubricant layer-coating vacuum chamber includes a lubricant-providing means disposed under the substrate; and the slitting vacuum chamber includes a winding means, a slitter, and an oxidizing gas-providing means.

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