Always appear overflow glue, adhesive not fatigue phenomenon, there is no good way, seek advice...
1. always check the rubber roller surface, remove impurities, and ensure uniform coating;2. always adjust the temperature of the temperature control system;3., the temperature should be reduced by 30-40 degrees during the working interval;4. when the environment and material temperature is near 15 degrees, the temperature of the upper roller should be set at 215 degrees, and the temperature of the groove should be set to 210 degrees centigrade;5. unused hot melt glue should be sealed to avoid contamination and moisture absorption.
There are several analyses:1, too much glue, so it will overflow, usually 1mm thickness enough.2. sticky, it may be the temperature is not sure. Try more than one trial.3., there is probably one of the largest, the quality of glue is too bad.
