METHOD OF PRODUCTION OF A TRILAMINAR PANEL OUT OF A REINFORCED PLASTIC AND A FILLER OUT OF TUBULAR ELEMENTS Russian patent published in 2005 - IPC

FIELD: shipbuilding; methods of production of large-sized load-carrying structures with curvilinear surfaces of two kinds curvature.

SUBSTANCE: the invention is dealt with shipbuilding, in particular, with methods of production of large-sized load-carrying structures with curvilinear surfaces of a two kinds of curvature. The method of production of the trilaminar panel out of a reinforced plastic provides for molding of the lower load-carrying layer, stacking of tubular elements of the filler closely to each other, molding of the upper load-carrying layer atop of them and hardening of the all elements of the trilaminar panel. The technical result of the invention is an increase of the load-carrying capacity of the trilaminar panel having rather big overall dimensions and an irregular shape of the curvilinear outer surfaces at simultaneous decrease of labor input of its production. The method consists in the following sequence of production operations: first from the previously molded and hardened tubular elements of the filler produce blocks. Further the blocks are place in a mold. The blocks are pressed down to the effective surface of the mold and fixed in respect to each other. In the clearance formed between the blocks they insert the previously formed, but still not hardened billets of driven tubular elements of the filler with their consequent hardening. Atop of the so formed solid layer of the filler mould the upper load-carrying layer of the trilaminar panel. After hardening of the upper load-carrying layer and also fixation of the curvature of the trilaminar panel billet it is taken out from the mold and on the opposite side of the layer of the filler mould the lower load-carrying layer of the trilaminar panel with its following hardening.

EFFECT: the invention ensures an increase of the load-carrying capacity of the trilaminar panel having rather big overall dimensions and an irregular shape of the curvilinear outer surfaces at simultaneous decrease of labor input of its production.

6 cl, 16 dwg