Method of controlling an extrudate with a deckle bar having heat

Details Method of controlling an extrudate with a deckle bar having heat Method of controlling an extrudate with a deckle bar having heat

1974-08-23

1976-10-05

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264176R, 264327, 425378R, 425466, B29D 702

Patent

active

039845087

ABSTRACT:
A method for controlling the extrudate emerging from an extruder is provided by sealing a portion of the extrusion die opening with a deckle bar into which is incorporated means for affecting the temperature at the surface of the deckle bar. The embodiments of this invention provide deckle bars into which are incorporated means for heating, cooling and heating and cooling in combination.

REFERENCES:
patent: 2364435 (1944-12-01), Foster et al.
patent: 2468585 (1949-04-01), Bluma
patent: 2572677 (1951-10-01), Tench
patent: 3320634 (1967-05-01), Ryan et al.
patent: 3507939 (1970-04-01), Williams et al.
patent: 3769379 (1973-10-01), Hinrichs

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