APPARATUS AND METHOD FOR MAKING SCREEN ASSEMBLIES FOR VIBRATORY SEPARATORS

摘要

An apparatus for use in the making of a screen assembly, the apparatus comprising a platen (31, 41, 32, 42) and a heat exchanger (62, 67) for removing heat from said platen. The invention also relates to an apparatus for use in the making of a screen assembly, the apparatus comprising a platen (21, 22) and a plurality of elements (22h) through which electric current flows for heating said platen (21, 22) characterised in that said platen (21, 22) further comprises at least one sensor (27a-f) for measuring the temperature of said platen (21, 22). The invention also relates to an apparatus for use in the making of a screen assembly, the apparatus comprising a platen (21, 22) having zones and a plurality of elements (22h) through which electric current flows for heating said platen (21, 22) characterised in that said elements (22h) are independently controllable for independently controlling the temperature of said zones in said platen (21, 22). The invention also relates to a method for making a screen assembly, the method comprising 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, characterised in that the method further comprises the steps of placing the screen, heat activated adhesive and screen support combination 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.