Nordson Corporation
CONTROLLING A THERMAL VALVE FOR MELTING OF POLYMERS

Abstract:

A method and system for controlling a level of molten material received in a reservoir of a melt system from a melt grid is disclosed. The method includes receiving a first level of the molten material from a sensor in the reservoir at a first time, receiving a second level of the molten material from the sensor at a second time subsequent to the first time, and comparing the second level of the molten material to a desired operating level to determine a difference between the second level and the desired operating level. The method also includes determining a temperature set point for the melt grid based on at least the difference between the second level and the desired operating level, and adjusting an operating temperature of the melt grid to match the temperature set point.