POM nozzle drooling

Problem Phenomenon

Nozzle drips material.

Cause Analysis

Low viscosity + high nozzle temperature, no suck-back.

Solution

①Lower nozzle temperature; ②suck-back; ③needle valve nozzle.

Key Takeaway

Drooling = nozzle temperature + suck-back.

POM；drooling；nozzle；suck-back

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