Heating unit, for butt welding plastics components, has a heating surface with a non-stick coating and openings linked to a compressed air supply to give air bursts to release the welded component

摘要

The heating unit (1), for butt welding plastics components, has at least one heating surface (6) which is heated by a heater (2) to carry the component. The heating surface has openings distributed over it, linked to a compressed air supply by channels (7) to give a burst of air against the welded plastics component and detach it from the heated surface. The heated surface can be covered with a ceramic, metal oxide or polymer non-stick coating.