SU1695017A1 - Tubular shell of composite polymeric materials - Google Patents

Abstract

The invention relates to pipes made from composite composite materials. The purpose of the invention is to increase the specific strength and rigidity of the structure, which is achieved by reinforcing the thin-walled plastic shell with a supporting ring catfish made of one piece. consisting of a cylindrical part and transition zones with edge thickenings, bonded to the shell by means of adhesive mass and fasteners. The support annular over c may be made of a woven or cross-reinforced impregnated with a cured binder reinforced with layers of high-modulus reinforcement and reinforced with a metal tape fastened to the reinforcement, and a damping ring is placed between the supporting annular belt and the shell. shell is made of woven and knit reinforcement impregnated with a hardened compound with walls reinforced annular by themselves. The reference annular c can be reinforced by an intermediate annular element. 7 з п.ф-лы, 10 ил

Description

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This invention relates to pipes made from polymer composites.

The purpose of the invention is to increase the specific strength and rigidity of the structure.

Figure 1 schematically shows a casing pipe, a general view; Figures 2-10 are reference to s, embodiments.

The casing pipe contains a thin-walled plastic casing 1 and a supporting annular c 2, fastened to the casing 1. A supporting circular c 2 is made in the form of a single-wound cylindrical shell with transition zones 3 and edge thickenings 4.

The supporting annular c 2 can be made of impregnated with a cured binder woven longitudinal-transverse and (or) spiral reinforcement with cross-winding and reinforced with layers 6 and 7 of the high modulus reinforcement annular

orientation, impregnated with a cured binder, alternating with solid tandem continuous layers of woven longitudinal-transverse and / or spiral reinforcement.

The support ring with respect to C 2 can be reinforced with a metal tape, for example, foil, with a ring orientation bonded to the reinforcement with adhesive layers and fasteners 5 and 8. A damping ring 9 made of heat-shielding material can be placed between the support ring casing 2 and the shell 1, for example foam plastic.

The damping ring 9 may be enclosed in a toroidal shell 10.

Torus-like shell can be made from impregnated solidified co

becoming continuous woven and / or knit

reinforcement meridional and (or) spiO

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circular annular orientation, and its walls are reinforced annular 11 and 12 themselves from high modulus material.

The supporting annular c 2 can be reinforced by an intermediate annular element 13 of high modulus material, bonded with an adhesive mass and (or) fasteners,

The transition zones 3 can be made spherical, conical, elliptical, or combined, and the edge thickenings 4 are fastened to the outer surface of the shell 1 with an adhesive mass and (or) fasteners.

The casing pipe can be made of any composite materials, while the number of layers of reinforcement, the reinforcement patterns, the density of the damping rings and the stiffness of the spacers are determined by calculation depending on the loads acting on the structure and climatic factors

The design of the shell pipe may have a wide range of geometries. The number of support parts of the shell pipe is determined depending on the conditions imposed on it by the strength and stiffness.

In the manufacture of the device, individual elements (cus, rings, toroidal and spacer elements) are subjected to heat treatment, the mode of which is determined by calculation.

In order to relieve internal stresses, a fully manufactured tubular casing is subjected to additional heat treatment, the modes of which are chosen depending on the geometric connectors, the shape, thickness and patterns of reinforcement of individual elements and the materials used.

Claims (1)

Invention Formula 1 A casing tube made of polymer composites containing a thin-walled plastic sheath and an annular support with c, fastened with a sheath, characterized in that, in order to increase the specific strength and rigidity of the structure, the supporting annular along with is made in the form of a single-rolled cylindrical shell with transition zones and marginal thickenings. 2, the casing pipe according to claim 1, of which is the support ring made with cured woven longitudinal-transverse and (or) spiral reinforcement cross-wound impregnated with a hardened binder and reinforced with layers of high-modular reinforcement orientation, impregnated with a cured binder, alternating with solid continuous layers of woven longitudinal-transverse and (or) spiral reinforcement, 3. Sheath pipe according to PP, 1 and 2, that is, so that the support ring is reinforced with a metal tape, for example, foil, ring orientation, bonded to the reinforcement by means of glue interlayers and fasteners. 4, Sheath pipe according to claim 1, 1-3, characterized in that a damping ring made of heat-shielding material is placed between the support ring cage and the casing. for example foam b.The sheath pipe according to claim 4, about tl and h and shch a - so that the damping ring is enclosed in a mountain-like shell. 6. A casing pipe according to claim 5, characterized in that the toroid-shaped shell is made of a continuous woven and (or) filament impregnated with a hardened composition of meridional and (or) spiral-ring orientation, and its walls are reinforced with annular reinforcement material. 7. Sheath pipe according to claim 1-6, characterized in that the supporting annular along reinforced by an intermediate ring element of high modulus material, bonded with adhesive mass and (or) fasteners. b.Tuba shell on PP. 1-7, about tl and cha with the fact that the transition zones are made spherical, conical, elliptical or combined form, and the edge thickenings are attached to the outer surface of the shell by means of glue and (or) fasteners. cxi rr cu to to ABOUT) § с ± - пЗ 3 s GO Shig.7 9 (Due. 8 Fig.