HEIZELEMENT - SCHWEISSWERKZEUG ZUM VERBINDEN FLAECHENHAFTER THERMOPLASTHALBZEUGE

摘要

The invention relates to a heated-element welding tool for joining planar thermoplastic semi-finished products. The object is to heat and cool planer thermoplastic semi-finished products under the pressure of the welding tool. The welding tool is to be designed in such a manner that it exerts a pressure on the welding point during the brief heating phase and maintains this pressure during the short cooling phase. According to the invention a metallic heated element body with high thermal conductivity, a large surface and low mass has absorption channels for heating and cooling which are equipped internally with infrared bright radiators, the diameter of which is dimensioned smaller than the diameter of the absorption channels, and thermal sensors are in effective connection, via the infrared bright radiators, with a fan.