METHOD FOR MAKING BEAM OF U-SHAPED PROFILE OF SHIP HULL FROM POLYMER COMPOSITE MATERIALS Russian patent published in 2020 - IPC B63B5/24 B29C65/00 

FIELD: vessels and other watercrafts.

SUBSTANCE: invention relates to plastic shipbuilding and can be used in production of reinforcing set of skin of casing, decks coverings (platforms), panels of bulkheads. Disclosed is a method of making a beam of a U-shaped profile of a ship body from polymer composite materials, consisting of a filling ("core") of a foam plastic type, moulded by a polymer composite material, forming a free band reinforced with additional layers of reinforcing material, which creates reinforcement of the band, and the beam walls smoothly changing into flanges providing connection to the body plate, using the infusion method, wherein before laying the "dry" reinforcing material layers of the moulding on the filler, additional layers of reinforcing material reinforcing the band are moulded on the filler, thereafter, the layers of "dry" reinforcing material are impregnated by binder forming by means of creation of vacuum with the help of infusion method.

EFFECT: technical result consists in improvement of strength characteristics, quality of production of beam of U-shaped profile, as well as in reduction of labour intensity, reduction of time of fabrication of bead of U-shaped profile and improvement of sanitary-hygienic conditions of moulding.

3 cl, 4 dwg