SU1484752A1 - Method of manufacturing tubular articles of composite materials - Google Patents

Description

The invention relates to the production technology of thin-walled shells, working under conditions of internal pressure. The purpose of the invention is to improve the performance and quality of the product. To do this, orbital stacking of longitudinal reinforcement is carried out in two layers 4, 5 on rings with bushings 2, its tension is due to pressing the outer layer of longitudinal reinforcement to bushings 2 by winding transverse reinforcement 6. After this, partial heat treatment and winding of transverse layers 7 are carried out until the necessary structure and wall thickness, then the workpiece is completely cured. 2 or ..

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1484752

1484752

The invention relates to the production of thin-walled shells, working under conditions of internal pressure, and can be used in various fields of national economy.

The purpose of the invention is to improve the performance and quality of the product.

FIG. 1 shows the mandrel for winding with the laid longitudinal reinforcement, section; in fig. 2 - mandrel after completion of the winding process.

For winding tubular products set coaxially at a given distance equal to the length of the product, two rings 1, forming, the mandrel and having a sleeve 2 with a conical outer surface. The installation of the rings 1 is carried out with the help of cartridges (not shown). A marker (not shown) with the reel 3 is orbitally wound on the rings 1 longitudinal reinforcement, forming the outer 4 and inner 5 layers. After the laying of the longitudinal layers 4 and 5, around the entire circumference of the end rings 1, winding 6 transverse reinforcement to the sleeves 2 for pressing the outer layer 4 to the inner layer 5 of the longitudinal reinforcement and its tension. Next, carry out additional (calculated) stretching of the longitudinal layers 4 and 5, for example, in the device, including clamping Cam device in the spindle and the tailstock of the machine (not shown). In this state, pre-heat treatment is carried out to partially cure the longitudinal layers 4 and 5.

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After that, cross winding is performed, laying down the reinforcement 7 to obtain a given structure and wall thickness. At the end of the winding of the product, it is carried out its final heat treatment and cutting to the specified size.

Depending on the structure of the product, it is possible to rewind both longitudinal and transverse layers.

The proposed method improves productivity and allows high-quality winding of the longitudinal layers to one another.

Claims (1)

Claim A method of manufacturing tubular products made of composite materials by orbital winding of longitudinal reinforcement on spaced relatively coaxial rings and curing the resulting workpiece, characterized in that, in order to improve the performance and quality of the product, each ring is provided with a sleeve with a conical outer surface, facing apex towards the same surfaces of the opposite ring, and after winding the longitudinal reinforcement, layers are pressed to each other by their winding with transverse nit Yami in the area of the sleeves, followed by preliminary heat treatment of the transverse layers and the final heat treatment.