HEAT WELD CONNECTION METHOD FOR THERMOSPLASTIC RESIN TUBE AND HEAT WELDING DEVICE THEREFOR

摘要

PURPOSE: To provide a heat weld connecting method for a thermoplastic resin tube and a heat welding device to be used therefor wherein heat welding can be done uniformly by adjusting welding parts with a simple equipment. CONSTITUTION: An overlap width 2 formed by inserting a tip of one thermoplastic resin tube into a tip of other thermoplastic resin tube so as to superpose on the same axis is inserted into an elastic pressure tube 4 and positioned. By extending the pressure tube 4 in the direction of axial core, the overlap width 2 is welded with heat by pressing welding parts from the whole periphery.