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Gate stringing or drooling

Gate stringing or drooling is caused by delayed freeze-off of melt in the gate. See Table 11.4 for some of the causes of stringing or drooling. [Pg.329]

Excessive heating of gate zone Check/renew nozzle thermocouple. Reduce manifold and nozzle temperature. Increase cooling of gate zone. Check gate size and geometry, change nozzle type or end (for amorphous plastics). [Pg.329]

Inadequate cooling time Extend cooling time. Use HR decompression to reduce residual melt pressure in HR. [Pg.329]

Shut-off nozzle pin does not close fully Proceed as in Table 11.2. [Pg.329]


A certain amount of experience is required to avoid gate stringing or drooling of some plastics from the nozzle. [Pg.23]


See other pages where Gate stringing or drooling is mentioned: [Pg.329]   


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