Handheld extruder welding device and method for operating a handheld extruder welding device

摘要

A welding gun has an integrated assembly of extruder screw (6), hot air supply (10) for preheating, display (13) for temperature sensors and a control microprocessor (14). The various process parameters and limits are stored in memory or input by the operator and the heating cycle for the screw feed material and preheating air is controlled accordingly. An interface is provided to read the sequence to a process monitoring unit. An independent claim is also included for operating such a welding gun with automatic control from memory according to data provided by the operator for welding material properties, weld seam format, and temperature limits. The hot air temperature control can take the ambient air temperature into account.