METHOD FOR MANUFACTURING A COMBINED DELIVERY PIPE
The invention relates to the field of manufacturing rigid pipes, and specifically, to methods for manufacturing combined delivery pipes from polymers and composite materials, and can be used for manufacturing pipes for transporting liquid and gaseous media. The method for manufacturing a combined delivery pipe comprises subjecting the external surface of an internal sealing layer to plasma processing, applying an external layer of composite material in the form of reinforcing fibres and a binder to said layer and curing the composite-material binder. The internal sealing layer is in the form of a tubular blank made of polymer material. The tubular blank is subjected to plasma processing in cold plasma from an abnormal glow discharge in air in a continuous-flow mode at a pressure of 210 Pa. The invention makes it possible to produce combined delivery pipes having great operational characteristics with the production process being highly efficient.