A method and equipment for manufacturing steel mesh skeleton plastic pipe

Abstract

The invention relates to a steel wire gauze framework plastic pipe manufacturing method. One or two winding steel wire layers are continuously and spirally wound outside a continuously straightly stretched supporting steel wire layer, and steel wires of at least one steel wire layer among the adjacent steel wire layers are covered with hot melting coatings, so that the adjacent steel wire layers are boned together in a hot melting point contact mode, and a steel wire gauze framework is formed; then in the rear section of the formed steel wire gauze framework, the steel wire gauze framework is completely covered with a plastic pipe body through one-time extrusion molding, and a steel wire gauze framework plastic pipe is formed; and finally, after cooling setting and cutting, a finished steel wire gauze framework plastic pipe is obtained. The steel wire gauze framework plastic pipe manufacturing method is ingenious, achieves continuous production and remarkably improves the production rate and product quality. The obtained steel wire gauze framework plastic pipe is free of a bonding layer and inner and outer plastic layers, the whole plastic pipe is arranged on the steel wire gauze framework through one-time forming, the product circumferential performance is uniform, and a supporting structure is firmer.

Description

technical field [0001] The invention relates to a manufacturing method and corresponding manufacturing equipment of steel mesh skeleton plastic pipes. Background technique [0002] Steel mesh skeleton plastic pipes have higher strength than ordinary plastic pipes and withstand higher pressures. They are widely used in urban water supply, gas, special industrial fluids such as petroleum, chemical flow agents, ore pulp, industrial wastewater, solid powder, low-temperature liquids High pressure piping systems. [0003] Most of the traditional plastic composite pipes with steel mesh skeleton involve at least five layers of composite structure. In addition to the steel mesh at the center layer, there are two layers of hot melt adhesive adjacent to the inner and outer layers of the steel mesh, plus two inner and outer plastic layers. Although the steel wire mesh skeleton composite pipe with this structure is more firmly combined with the plastic layer, there are technical defects...

AI Technical Summary

Problems solved by technology

Although the steel wire mesh skeleton composite pipe with this structure is more firmly combined with the plastic layer, there are technical defects at the same time. Due to the different materials of the hot melt adhesive and the plastic layer, there are differences in the pressure resistance and temperature resistance of the two. Under harsh working conditions, the hot melt adhesive is easy to deform and fail, resulting in detachment from the plastic layer, and in severe cases, the rupture of the pipeline

[0004] In the actual manufacturing process of the steel mesh skeleton, since the steel wire itself is not fixed as a whole, the steel wire is easy to slip. Not only is it easy to rub and damage the steel wire during the manufacturing process, but it is also easy to cause uneven support strength of the steel wire in all directions, resulting in pipelines under severe conditions such as high pressure and high temperature. Easy to break in harsh environment

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