Methods for controlling vinyl plastic extrudate

Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling heat transfer with molding material

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264 407, 264 68, 264174, 264DIG65, 425144, B29F 308

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active

045004811

ABSTRACT:
In order to control the fusion of a polyvinyl chloride plastic material which is being moved along a screw of an extruder from a feed section (36) through a compression section (37) to a metering section (39) and crosshead (26), the melt pressure is measured in the compression section. The melt pressure, which is indicative of the fusion qualities of the plastic material, is used to control the temperature of the plastic material in the feed section to cause it to be substantially homogenous at the crosshead.

REFERENCES:
patent: 3467743 (1969-09-01), Otani
patent: 3698844 (1972-10-01), Grimm
patent: 3704972 (1972-12-01), Kneller et al.
patent: 3728424 (1973-04-01), Bauer
patent: 3733059 (1973-05-01), Petit
patent: 3824479 (1974-07-01), Alger
patent: 3920229 (1975-11-01), Piggott
patent: 3924840 (1975-12-01), Nelson, Jr.
patent: 4197070 (1980-04-01), Koschmann
patent: 4243629 (1981-01-01), Tramezzani
patent: 4309114 (1982-01-01), Klein et al.

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