Injection nozzle for minimizing stringing of an injection materi

Details Injection nozzle for minimizing stringing of an injection materi Injection nozzle for minimizing stringing of an injection materi

1994-09-07

1996-05-14

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

425562, B29C 4520

Patent

active

055162754

ABSTRACT:
An injection nozzle having a thread provided on an inner peripheral wall of a nozzle bore at a nozzle head thereof. With the thread, the inner peripheral wall is formed into an uneven surface along a length 1.5 to 4 times the nozzle bore diameter. The fluid resistance against the inner peripheral wall of the nozzle bore is allowed to increase, thereby preventing resin stringing.

REFERENCES:
patent: 4345892 (1982-08-01), Schulte et al.
patent: 4771164 (1988-09-01), Gellert
patent: 5235737 (1993-08-01), Gellert

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