PROCEDURE AND DEVICE FOR THE MANUFACTURE OF A CHAMBER PROFILE OF THERMOPLASTIC MATERIAL ACCORDING TO THE COOLING TOWELS PROCEDURE.

摘要

Procedure for the manufacture of a hollow chamber profile, which has a constant cross-section over its length, of thermoplastic material according to the process of cooling nozzles, in which a plastic casting is pressed by extrusion through an area heat (1) of the profiling tool and immediately afterwards still under pressing pressure through a refrigerated calibration zone (2) with internal cooling and external cooling of the hollow chamber profile, characterized in that the plastic casting leaves from the zone ( 1) of the profiling tool in the form of open partial profiles independent of each other, which are arranged according to their position in the hollow chamber profile and present between associated partial ribs ends (9), still partial ribs (10) absent, and the parts of ribs still absent complement each other in the calibration zone (2) through casting d e plastic that then flows under the pressing pressure as well as still joining from the heat of the laundry in union of the material with the associated ends of the partial ribs.