Extruder welding shoe and hand welding extruder for producing a multiple weld seam

摘要

The shoe (5) has a material flow channel (8) extending between a material inlet and a material outlet, where plasticized plastic material flows through the flow channel. The flow channel has a material branching point (9) for dividing the flow channel into material flow branching channels (10, 10'). An interior air guide is provided for pre heating air and has an air flow channel for connecting an air inlet and an air outlet. The material flow channel and the air flow channel branch symmetrical to a longitudinal axis of an extruder nozzle.