Vasil'eva

The authors consider application of polyamide films with fluoroplastic coating for production of film-wound pipelines of aircraft power plants which use cryogenic propellant components. Design problems of multi-layer covers for straight and curvilinear pipelines made of polyamide films were considered; operating and kinematic parameters of spinning and heat treatment of pipelines were determined. The authors proposed a method of connecting the flange shank end of the pipeline with a film cover; specific geometrical dimensions were provided. Results of strength and leakproofness tests of pipe samples made of polyamide film PMF-352 by inner pressure of liquid nitrogen are given in this article. Possibility of their usage in devices that operate on cryogenic fuel is described.