System for applying hot melt adhesive powder onto a non-metallic object surface
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United States of America Patent
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Aug 13, 2013
Grant Date -
Nov 1, 2012
app pub date -
Jul 11, 2012
filing date -
Sep 4, 2009
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Abstract
A system for applying hot melt adhesive powder onto a non-metallic object surface comprises a convey belt, a radiation chamber, a spraying chamber and a heating chamber. The convey belt is used to deliver a non-metallic object treated by a cleaning agent and a conductive liquid through the radiation chamber where the surface of the non-metallic objected is irradiated by ultraviolet rays and ozone and then through the spraying chamber where the surface of the non-metallic object is sprayed with charged hot melt adhesive powder, and finally into the heating chamber where the hot melt adhesive powder attached onto the non-metallic object will be melted into a liquid adhesive film ready to be bonded.
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