A vane for a turbine engine includes a body in the form of an aerodynamic profile formed by a shell produced from a composite material formed from a three-dimensional textile of reinforcement fibres consolidated by a hardened resin. The shell forms a pressure surface and a suction surface of the vane connected to each other while forming on one side a leading edge and on the opposite side a trailing edge of the vane, and a core including a core body surrounded by the shell. The core is produced from non-porous plastics material, and the core body is in the form of an aerodynamic profile and delimits at least one closed cavity of the core.

A method of forming a device of composite material includes providing a mold having an internal space forming a cavity with an inner surface, the cavity having a shape corresponding to an inner shape of the device to be formed, placing inserts at one or more pre-defined positions along the inner surface, holding the inserts at the one or more positions, introducing removable material into the cavity of the mold to form a pattern having the inserts fixed therein when the removable material is in solid form, and removing the pattern having the inserts fixed therein from the mold.

A method of forming a device of composite material includes providing a mold having an internal space forming a cavity with an inner surface, the cavity having a shape corresponding to an inner shape of the device to be formed, placing inserts at one or more pre-defined positions along the inner surface, holding the inserts at the one or more positions, introducing removable material into the cavity of the mold to form a pattern having the inserts fixed therein when the removable material is in solid form, and removing the pattern having the inserts fixed therein from the mold.

A method of manufacturing a pressure vessel, may include a preparation step of preparing a boss made of metal; a processing step of processing a concave-convex pattern on an external surface of the boss; and a winding step of winding a reinforcing material around an external surface of a liner including the boss so that the reinforcing material is disposed on the concave-convex pattern, improving quality and durability of the pressure vessel and reducing a defect rate.

The invention relates to a composite blade (5) for a turbine engine rotor, for example, an unducted propeller, comprising a skin (6) made of woven fibres forming the outer profile of the blade and an attachment (11) with cylindrical geometry in the direction of the span emerging from the blade root (9), which attachment is intended to retain the blade (5) on a hub of the rotor, characterised in that it further comprises a spar (16) having a hollow tube structure made of braided carbon fibres, fixed to the attachment (11) and extending inside the skin (6) over at least part of the span of the blade (5). The invention also relates to a propeller comprising said blade and to a method for manufacturing said blade.

A process for the production of composite materials at low temperatures, as well as a composite material obtained by the process and articles of manufacture comprising the composite material are provided.

A method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade, the Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade produced by the method and its use are provided. The method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade improves production efficiency and saves costs.

A method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade, the Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade produced by the method and its use are provided. The method for producing a Spar Cap, trailing edge or other reinforced laminate structural part of wind turbine blade improves production efficiency and saves costs.

A floor board, and a method and apparatus for manufacturing same. The floor board (100) comprises a polyurethane-foam board (110). The polyurethane-foam board (110) is made of a polyurethane foam material foamed from a polyurethane foam raw material. The polyurethane-foam board (110) is provided with a plurality of linear members (120) passing though the polyurethane-foam board in a predetermined direction. The plurality of linear members (120) are arranged at intervals. The polyurethane-foam board (110) is foaming-molded by continuous drawing.

A method of manufacturing a high-pressure tank includes: forming a vessel body including a body portion having a cylindrical shape, a domical portion having a hemispherical shape and provided at an end of the body portion, and a neck portion extending from the domical portion in an axial direction of the domical portion; winding fibers around an outer peripheral surface of the vessel body to form a plurality of fiber layers laminated in a radial direction of the vessel body; and placing, in a mold, the vessel body around which the fibers have been wound, and then injecting a resin onto the neck portion in an axial direction of the vessel body to impregnate the fibers with the resin.