SU1134834A1 - Pipe flange from composition material - Google Patents

Abstract

A FLANGE OF A PIPE FROM A COMPOSITION MATERIAL consisting of longitudinal and transverse fibers reinforced with a monolithic binder block, which is so that, in order to increase reliability and simplify the manufacturing technology, the flange is formed by the end sections of the longitudinal fibers of the pipe, bend radially to the periphery of the flange, layers of tissue cut through to form petals bent in the same direction, and fabric washers with a diameter equal to the diameter of the flange, with petals formed by radial cuts from the center of the washer cm tissue pitch washers are bent in the axial direction of the tube and secured to neypoperechnymi fibers. (L S G 2 I s 00 so 4

Description

The invention relates to the field of pipe fittings, namely to the connecting flanges of pipelines, used in chemical, mining and other industrial areas where Pipe connections are lightweight, resistant to aggressive media and temperature changes, and have greater mechanical strength.

A flange made of composite materials is known, consisting of annular filler fibers, reinforced with washers and poured into a monolithic block by coupling with resin l.

However, in this design, reinforcement of the flanges with filler almost does not improve the mechanical characteristics of the flanges, since the strength of the pipe-flange connection creates only resin.

A flange of a pipe made of composite material is known, consisting of longitudinal and transverse fibers fixed in a monolithic binder block.

In this design in. The junction between the flange-tube connection and the longitudinal and transverse fibers are not involved in the transfer of forces from the load.

The purpose of the invention is to increase the reliability and simplify the manufacturing technology.

This goal is achieved by the fact that the flange of a composite pipe consisting of a longitudinal and transverse fibers, reinforced in a monolithic binder block, is formed by end sections of longitudinal fibers of the pipe, bent radially to the periphery of the flange, with layers of fabric cut to form petals bent at. the same direction, and fabric washers with a diameter equal to the flange diameter, with petals formed by radial cuts from the center of the washer, with the petals of fabric washers bent axially along the pipe and fastened with transverse fibers to it.

FIG. 1 shows a layer cut through to form petals; figure 2 - tissue washer;

on fig.Z - section of the transverse fiber; Figures 4-6 illustrate the steps of forming a flange on the mandrel.

The flange of the composite pipe is formed by layers of fabric 1, cut to form petals 2, fabric washers 3 with a diameter equal to the diameter of the flange, with petals and 4 formed by radial cuts from the center of the washer, and end sections 5 of the longitudinal fibers 6 of the pipe.

The flange is manufactured on a technical mandrel 7 having the appropriate dimensions.

All materials used to make the flange and pipe are pre-impregnated with a binder, such as a resin, and dried.

A mandrel 7 (Fig. 4.) is wound with several layers of fabric 1 and the petals 2 are bent in, the fabric washers 3 are set in the radial direction, and their petals 4 are bent over the pipe (figure 5). Lay the longitudinal fibers 6, the ends of which 5 are bent on the mandrel (fig.b). In this case, all layers are fixed by winding transverse fibers 8.

Depending on the required physical and mechanical characteristics, the thickness of the flange and tube is governed by the number of layers of fabric 1, fabric washers 3 of longitudinal B fibers and transverse fibers 8.

To create a monolithic pipe-flange construction, after assembly, a press and a metal washer are installed and tightened onto the flange on the side of the pipe, and a pressure layer, a wire or a fiber tape, or a press half of a coupling half is mounted on the pipe or the press.

The technical and economic efficiency of the device lies in the fact that it maximally uses the mechanical properties of the fibers and achieves a high strength of the load with the load on both the fibers and the binder. Creme Togo, simplified flange technology.

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Claims (1)

PIPE FLANGE OF COMPOSITE MATERIAL, consisting of longitudinal and transverse fibers, reinforced with a monolithic binder block, characterized by the fact that, in order to increase reliability and simplify manufacturing technology, the flange is formed by the end sections of the longitudinal fibers of the pipe, bend radially to the periphery of the flange , layers of fabric, cut with the formation of the petals, bent in the same direction, and fabric washers with a diameter equal to the diameter of the flange, with petals formed by radial cuts from the center of the washer, and epestki tissue washers are bent in the axial direction of the tube and secured to it by transverse fibers. (L from. Phi & 1. 2