APPARATUS AND METHOD FOR MAKING SCREEN ASSEMBLIES FOR VIBRATORY SEPARATORS

摘要

The invention relates to a method and apparatus for making a screen assembly. The method comprises the steps of placing a screen, a heat activated adhesive and a screen support in or on a heated apparatus to melt said heat activated adhesive, wherein the screen, heat activated adhesive and screen support combination are placed on or in a cooling platen provided with a heat exchanger to facilitate maintenance of the temperature of the cooling platen for cooling said heat activated adhesive. The apparatus comprises a platen (31, 41, 32, 42) and a heat exchanger (62, 67) for removing heat from said platen. A plurality of elements (22h) through which electric current flows are provided for heating said platen (21, 22). At least one sensor (27a-f) is provided for measuring the temperature of said platen (21, 22). The platen (21, 22) has zones and a plurality of elements (22h) through which electric current flows. Said elements (22h) are independently controllable for independently controlling the temperature of said zones.