Method and apparatus for forming film on surface of disk

Details Method and apparatus for forming film on surface of disk Method and apparatus for forming film on surface of disk

1995-03-03

1995-12-26

Beck, Shrive

Coating processes

Magnetic base or coating

427424, 427425, 118 52, 118 56, 118300, 118320, B05D 102

Patent

active

054785952

ABSTRACT:
A disk body (1) is arranged so that a portion of the coating forming surface thereof exists over a spray region A of a substantially circular cross-section made by a nozzle (10) for production of super fine particles to spray a coating forming agent, and the coating forming agent is sprayed while the disk body (1) is being rotated about the center thereof. The section near the peripheral edge of the disk body (1) passes through the section near the center of the spraying region where the density of fine particles is higher; however the passing speed thereof is fast, so the deposit efficiency of fine particles per unit area of the disk body (1) is lower, while the section near the center of the disk body (1) passes through the section near the peripheral edge of the spray region where the density of fine particles is lower; however, the passing speed thereof is slow, so the deposit efficiency of fine particles per unit area of the disk body is higher. This makes the amount of the fine particles which sticks to and accumulates on the disk body (1) uniform in the radial direction of the disk.

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patent: 5079043 (1992-01-01), Lambert
patent: 5094884 (1992-03-01), Hillman et al.

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