Method of manufacturing magnetic recording medium

Details Method of manufacturing magnetic recording medium Method of manufacturing magnetic recording medium

1993-12-03

1995-01-03

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

427132, 427251, 4272555, 427296, 427322, 4273982, B05D 512

Patent

active

053784960

ABSTRACT:
When manufacturing a magnetic recording medium, depositing material in a crucible is heated to evaporate, and the vapor particles of the deposition material is continuously deposited on a continuous substrate material running along the peripheral surface of a cylindrical cooling can between a position where the vapor particles impinge upon the substrate material at a large angle and a position where the vapor particles impinge upon the substrate material at a small angle. The distance r(.theta.min) between the substrate material and the depositing material in the crucible when the vapor particles impinge upon the substrate material at a minimum incidence angle and the distance r(.theta.max) between the substrate material and the depositing material in the crucible when the vapor particles impinge upon the substrate material at a maximum incidence angle satisfy the formula 0.25.ltoreq.{r(.theta.min)/r(.theta.max)}.sup.2.

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