During hot gas welding of thermoplastic polymers, the two parts to be joined are plasticised by a heating element and subsequently joined together under pressure. By contrast with the conventional hot plate welding process, plastication is effected here contact-free by means of hot gas that flows directly out of the die plate into the joint zones. The use of nitrogen as inert gas almost completely eliminates oxidation of the melt during the plasticising time. The process is particularly suitable for products with very high demands on cleanliness.

Materials:

All thermoplastics (reinforced and non-reinforced)