Forming equipment for continuous fiber reinforced composite pipe

Abstract

The invention provides forming equipment for a continuous fiber reinforced composite pipe, and belongs to the technical field of composite pipelines. The problem that in the prior art, a composite pipeline is low in strength is solved. The forming equipment of the continuous fiber reinforced composite pipe comprises a forming mold and an outer pipe, a forming cavity channel is formed between an outer mold sleeve and a core mold of the forming mold, one end of the outer pipe stretches into the outer mold sleeve from a front end opening of the outer mold sleeve, and an annular cavity channel for fibers to penetrate through is formed between the outer circumferential wall of the outer pipe and the inner circumferential wall of the outer mold sleeve. A cylindrical supporting barrel arranged outside the core mold in a sleeving mode is arranged in the forming cavity channel, material passing holes are formed in the supporting barrel in a spreading mode, a gap is formed between the outer circumferential wall of the supporting barrel and the inner circumferential wall of the outer mold sleeve, and a feeding channel used for injecting molten materials into the supporting barrel is further formed in the outer pipe. The composite pipeline produced by the molding equipment has the advantages of high strength and good toughness.

Description

technical field [0001] The invention belongs to the technical field of composite pipes and relates to a forming device for continuous fiber reinforced composite pipes. Background technique [0002] With the continuous expansion of cities and the continuous extraction of oil and natural gas, the demand for transportation pipelines is also increasing. Traditional steel pipes have poor corrosion resistance and are not easy to handle, so they can no longer meet the current needs. At the same time, my country's main oil and natural gas are mostly distributed in deserts, swamps or mountainous areas, and the natural environment is relatively harsh. When laying steel pipelines, it is seriously affected by the natural environment, and due to ground subsidence, landslides and other reasons, the pipelines are extremely prone to damage. Phenomenon. Due to its low density, high strength, and excellent mechanical properties, such as good processing performance, good chemical resistance a...

AI Technical Summary

Problems solved by technology

Due to the characteristics of the mold structure, the co-extrusion of the continuous fiber composite pipe cannot be realized, but the chopped fibers can only be mixed into the hot melt for multi-layer co-extrusion to form a multi-layer fiber-reinforced composite pipe. For composite pipes, the pipe performance, especially the difference in shear strength, is more obvious

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