METHOD OF MANUFACTURE OF LARGE-SIZED BODIES OF ROTATION WITH SURFACE OF VARIABLE CURVATURE OF A MULTI-LAYER DESIGNED CONSTRUCTION FROM POLYMER COMPOSITE MATERIALS Russian patent published in 2018 - IPC B29C53/56 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to the technology of manufacturing large-sized products in the form of bodies of revolution with a surface of variable curvature of polymeric composite materials (PCM) of a multilayer collapsible structure and can be used in the manufacture of casings, mandrels and other products. Method of manufacturing large-sized bodies of rotation with a surface of variable curvature of a multilayer collapsible structure of polymer composite materials is in a layer-by-layer application to the surface of the full-length shape of the inner carrier layer in the form of carbon-impregnated or fiberglass impregnated with embedded elements, lightweight aggregate and an outer carrier layer in the form of impregnated with a binder or fiberglass cloth, gluing layers of carbon or fiberglass and lightweight aggregate is performed with simultaneous curing. After curing, the resulting stack of layers of polymer composite material is cut into its thickness along the axis per sector, followed by reinforcement of their longitudinal docking surfaces, at that the embedded elements are fixed by a detachable connection in full-sized form, made fold-down. Assembly-disassembly of the structure is made starting with elements of full-size form, and then sectors in series, as a lightweight filler, a honeycomb core made of polymer composite material is used. Application of the polymeric composite material to the surface of the full-sized form is carried out by alternately winding the roving layers and the glass-cloth or glass-tape, previously impregnated with a binder.

EFFECT: technical result of the invention is to expand the technological capabilities of the method.

1 cl, 2 dwg