FIELD: textiles, paper.
SUBSTANCE: method of manufacturing the woven preform comprises the steps of: (a) forming the adjacent layers, each of which comprises warp fibers extending in parallel to each other and forming substantially vertical columns. At the step (b) the weft fibers are woven in the layers of warp fibers to form a base and two legs extending from the base. Moreover, the base and each of the legs are made of at least two layers of warp fibers, the base has a first edge and a second edge, and each of the legs has an inner edge and an outer edge. Each weft fiber is woven so that it extends from the first edge of the base towards the central part of the base outwards its layers, then into the layers of one of the legs back to the central part of the base, then into the layers of the other leg and outwards the layers of the legs and back into the layers or the central part of the base towards the second edge of the base. At that the weft fibers extend into each of the legs from its inner edge to its outer edge and back to its inner edge and provide a mutual fixation of base layers and the layers of each leg, as well as a mutual fixation of warp fibers in each layer.
EFFECT: creation of a three-dimensional preform of better quality, which does not contain loops and waves in the structure, as well as manufactured for less period of time.
23 cl, 6 dwg
