Injection Molding
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Nozzle drooling in PCTG '2079851475616104452
Problem Phenomenon
Melt drooling (dripping) occurs at the injection machine nozzle during mold opening.
Cause Analysis
Nozzle temperature too high, low melt viscosity, nozzle hole diameter too large, improper back pressure.
Solution
Lower nozzle temperature; use a shut-off nozzle (needle valve type); adjust back pressure.
Key Takeaway
PCTG nozzle drooling affects production stability.
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