Orifice plate for producing plastic strands in which a small dis

Details Orifice plate for producing plastic strands in which a small dis Orifice plate for producing plastic strands in which a small dis

1990-10-17

1992-03-10

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means forming from bulk and downstream severing means

264142, 425464, B29C 4730

Patent

active

050946064

ABSTRACT:
In pelletizing apparatus, an orifice plate forms plastic strands, the orifice plate having a distributor channel at its inlet side in the form of a grooved annular inlet. A cutting plate is provided with outlet openings which are connected to the distributor channel by inlet channels arranged around the distributor channel in successive adjoining relation. In order to improve the melt flow in the inlet region, the distributor channel has a cross-sectional width in the radial direction that is less than the radial extent of the inlet channels where they are joined to the outlet openings. The longitudinal axes of adjacent inlet channels are arranged at an angle of inclination relative to each other.

REFERENCES:
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patent: 3340572 (1967-09-01), Lurie
patent: 3867082 (1975-02-01), Lambertus
patent: 3892834 (1975-07-01), Pritchard
patent: 4061462 (1977-12-01), Giannarelli et al.
patent: 4242075 (1980-12-01), Higuchi et al.
patent: 4621996 (1986-11-01), Hundley, III
patent: 4728276 (1988-03-01), Pauley et al.
patent: 4846644 (1989-07-01), Lin
patent: 4934916 (1990-06-01), Lambertus

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