Method and apparatus for applying a polymer layer to a metal...

Details Method and apparatus for applying a polymer layer to a metal... Method and apparatus for applying a polymer layer to a metal...

B - Operations, Transporting

32

B

18/1021

B32B 15/08 (2006.01)

Patent

CA 1235272

-18- Method and Apparatus for Applying a Polymer Layer to a Metal Sheet Abstract Disclosed is a method and fixture for applying a thin layer of polymer material (26) to a piece of wavy sheet metal (24)(34). The sheet (34) is drawn to the smooth surface (42) of a fixture using a vacuum, and polymer (49) is flowed across the surface (51) using a curved leveling board (50) which produces a generally uniform thickness polymer molding. The edges (76) of the layer are molded with a bevel edge by shaped side rails (38) to pro- vide a relief around the edge of the layer. Thus a raised up polymer portion (68) usually occuring at the edge rail (38) location will not interfere with the precise spacing which the layer is intended to produce between the sheet and a cylindrical workpiece holder (20).

457905

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