Polyethylene wound structured wall pipe with steel framework and method for manufacturing polyethylene wound structured wall pipe

Abstract

The invention relates to a polyethylene wound structured wall pipe with a steel framework. The polyethylene wound structured wall pipe comprises an inner wall layer and an outer wall layer. The inner wall layer is a continuous solid wall pipe, platy polyethylene strips are spirally wound on drum molds, and the edges of the various adjacent strips are sequentially overlapped on one another and are combined with one another to form the continuous solid wall pipe. The polyethylene wound structured wall pipe is characterized in that the framework of the outer wall layer is made of steel strips, omega-shaped sections of the steel pipes are set by means of bending, the polyethylene strips cover the outer surfaces of the steel strips and are spirally wound on convex reinforcing ribs formed on the outer surface of the inner wall layer, and the convex reinforcing ribs spirally cross overlapped combined gaps among the edges of the various adjacent platy polyethylene strips of the inner wall layer. The polyethylene wound structured wall pipe with the steel framework and the method for manufacturing the polyethylene wound structured wall pipe have the advantages of low raw material consumption, short machining time, light product weight, low cost, high rigidity, efficiency and quality and capability of implementing online continuous production.

Description

technical field [0001] The invention belongs to the technical field of plastic pipes and their processing, and in particular relates to steel skeleton polyethylene winding structural wall pipes and a production method thereof. Background technique [0002] At present, in many fields such as sewer pipes and drainage engineering in cities, the use of plastic pipes with reinforcing ribs is increasing. There is no pressure inside the drain pipe. In order to improve the performance of resisting external pressure and impact, different forms of reinforcing ribs are set on the outer periphery of the pipe wall. There are two main types of commonly used plastic pipes with reinforcing ribs: one is made by direct extrusion molding, the most representative is double-wall corrugated pipe; the other is made by spiral winding, representing double-wall corrugated pipe. Wall pipes, polyethylene winding structural wall pipes and steel strip spirally wound corrugated pipes, etc. [0003] Amon...

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Problems solved by technology

However, due to the inclusion of polypropylene bellows, the current polyethylene winding structural wall pi

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