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AssigneeNational Cheng Kung University
InventorsYUNG-CHUN LEE, CHUAN-HSIANG LEE, SHOU-CHI CHO
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This invention relates to a method for conducting film coating on the surface of spinning circular workpiece under action of gas pressure, and nozzle utilized in the same. Circular workpiece to be coated is held on a rotating mechanism, and a feedstock loading machine having a nozzle, which is capable of guiding redundant feedstock and overflowing in a specific direction, is set to have a 100 μm gap with the circular workpiece. When the rotating mechanism is rotated, the polymer solution is precoated on the surface of the circular workpiece, and when gas valve is opened, the polymer solution is squeezed to a predetermined thickness by an annular high pressure gas-stream formed on the periphery of a cylinder, produced from the high pressure gas released.
A method for conducting film coating on the surface of spinning circular workpiece under action of gas pressure, wherein coating material is fed onto the inner or outer surface of a circular workpiece conducting self-spinning, an annular gas-stream surrounding in the radial direction of said circular workpiece in such a manner that the coating material on said circular work is squeezed by the gas-stream so as to be distributed in even and flat manner.
An apparatus for conducting film coating on the surface of spinning circular workpiece under action of gas pressure, at least comprising:
Dependencies are inferred from the claim text.