Perforated plate for the underwater granulating of extruded stra

Details Perforated plate for the underwater granulating of extruded stra Perforated plate for the underwater granulating of extruded stra

1986-09-05

1988-08-16

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Immersed shaping orifice discharging directly into liquid...

264142, 425311, 425464, 425467, B28B 1114

Patent

active

047641002

ABSTRACT:
A perforated plate construction for the underwater granulating of plastic strands comprising a base member with a melt distribution channel and a plurality of inlet channels connected to the melt distribution channel and to extruder nozzles of a cutting plate. The base plate is heated in the region of the inlet channels. Between the base member and the cutting plate is an insulating layer through which the extruder nozzles extend. In order to permit compensation for thermal expansion in the cutting plate without damage to the cutting plate and the insulating layer, the latter is formed as an air gap which is substantially coextensive with the cutting plate in the transverse direction of the extruder nozzles. The cutting plate is supported on the base plate by a plurality of tubular support elements which are separate from each other and freely extended through the air gap.

REFERENCES:
patent: 3308507 (1965-09-01), Black
patent: 3323170 (1967-06-01), Swiekand et al.
patent: 3516120 (1970-06-01), Braun et al.
patent: 3749536 (1973-07-01), Remscheid et al.
patent: 4264553 (1981-04-01), Loo
patent: 4378964 (1983-04-01), Wolfe

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