The diploma thesis deals with the hot air welding of polyurethane foam. The main reasons for the study are to improve productivity and the quality of the joint and to reduce the price of the welding. The thesis presents all necessary equipment for successful hot air welding of polyurethane foam. The thesis presents successful choice of heater, blower and mechanism for successful welding of polyurethane foam with hot air. Important features about polyurethane foams are also presented, such as processing, strategies on foam durability, recycling and the use of foams. Important welding parameters are also presented. The quality of the joints has been evaluated by visual inspection and tensile test. The results are recorded in the tables and presented on the diagrams. An optimal parameters for successful welding of polyurethane foams were developed.
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