VACUUM TYPE EXPOWDING APPARATUS FOR THERMOPLASTIC TUBE

摘要

a minute heater having a temperature measuring thermocouple; an adiabatic adaptor installed in the other end of the minute heater; an adiabatic polytetrafluoroetylene inserted into the adiabatic adaptor; a first vacuum generating bracket coupled to the minute heater by a fixing means and forming a first vacuum suction pipe; a second vacuum generating bracket coupled to the first vacuum generating bracket and forming a first vacuum passage with the first vacuum generating bracket and a first groove in a lower end of an internal portion thereof; a third vacuum generating bracket coupled to the second vacuum generating bracket by a fixing means and forming a second vacuum suction pipe; a fourth vacuum generating bracket coupled to the third vacuum generating bracket by a fixing means and forming a second vacuum passage with the third vacuum generating bracket and a second groove in a lower end of an internal portion thereof; and a fixing jig for fixing a cooling pipe together with the second vacuum generating bracket and for supporting an expansion device.