Die for hot die face cutting thermoplastic polymers

Details Die for hot die face cutting thermoplastic polymers Die for hot die face cutting thermoplastic polymers

1985-01-31

1987-07-07

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Means forming from bulk and downstream severing means

264142, 425464, B29B 900

Patent

active

046784233

ABSTRACT:
The die includes a body provided with a plurality of polymer flow channels and a plate fixed to the front surface of the body and bored at locations corresponding to each channel. An insulating layer is positioned between the body and the bored plate. The channels include a thermoregulating system for the die body. A plurality of nozzles is provided, with the nozzles being rooted inside the die body at locations corresponding to the channels. The nozzles protrude from the body itself to cross through the insulating layer and the bored plate. The nozzles are made of a metal having a thermal conductivity higher than 60 W/m.degree.K.

REFERENCES:
patent: 3516120 (1970-06-01), Braun et al.
patent: 3599285 (1971-08-01), Hamilton
patent: 3599286 (1971-08-01), Karet
patent: 3618162 (1971-11-01), Scharer et al.
patent: 4123207 (1978-10-01), Dudley
patent: 4264553 (1981-04-01), Loo
patent: 4327050 (1982-04-01), Salmon
patent: 4564350 (1986-01-01), Holmes et al.

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