Device in the form of a double-walled pipe for cooling continuous profiles

摘要

A device in the form of a double-walled pipe for cooling continuous profiles includes a core pipe of a cross section corresponding to the profile being cooled and which is interchangeably inserted in a jacket pipe with at least one low-boiling liquified gas injection orifice in the core pipe near the intake opening for feeding vaporized gas into the cavity formed by the core pipe and the continuous profile.