Cooling process for a continuously extruded product

Details Cooling process for a continuously extruded product Cooling process for a continuously extruded product

1988-09-21

1990-06-05

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

62 63, 62 64, 26421118, B29C 3516, B29C 4778

Patent

active

049312324

ABSTRACT:
A process for continuous cooling of an extruded product, wherein the product passes successively in its direction of movement in a tunnel through at least three cooling zones; an upstream zone for cooling by convection in which the gas and the product move countercurrently, a cooling zone by cryogenic fluid spraying on the product, and a downstream stabilization zone in which the gas and the product move concurrently.

REFERENCES:
patent: 3254506 (1966-06-01), Braeking
patent: 3258935 (1966-07-01), Ross
patent: 3345828 (1967-10-01), Klee et al.
patent: 3403527 (1968-10-01), Berreth et al.
patent: 3494140 (1970-02-01), Harper et al.
patent: 3583171 (1971-06-01), Flynn et al.
patent: 3757533 (1973-09-01), Kent
patent: 4212171 (1980-07-01), Soecknick
patent: 4229947 (1980-10-01), Klee
patent: 4757691 (1988-07-01), Compagnon

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