Method and apparatus for manufacturing magnetic recording medium

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

1991-10-18

1992-06-16

Pianalto, Bernard

Coating processes

Magnetic base or coating

Magnetic coating

118 59, 118 65, 118 67, 118 69, 118718, 118720, 118722, 118724, 118731, 427130, 427131, 427132, 427251, 4272557, 427322, 427328, 4273982, H01F 1002

Patent

active

051223929

ABSTRACT:
A method and apparatus for manufacturing a magnetic recording medium at high efficiency. A flexible web is passed around first and second cooling cans. The web is reversed between the two cans so that the same surface of the web is directed to the outside on both cans. A single evaporation source produces an evaporated stream of magnetic film forming material which impinges on the web as it passes around both cans, thereby to form two films of the evaporated magnetic material on the same surface of the web.

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