Continuously wound reinforced corrugated pipe and manufacturing method thereof

Abstract

The invention discloses a continuously wound reinforced corrugated pipe and a preparation method thereof. The pipe comprises a continuous solid-wall cylindrical pipe body formed by lapping and fusing a plurality of spirally wound special rods of which the two sides are provided with butting wings through the wings; a plurality of hollow reinforcing ribs are spirally wound on the pipe wall of the cylindrical pipe body; each hollow reinforcing rib comprises at least one special single-wall corrugated reinforcement pipe which is spirally wound on the pipe wall of the cylindrical pipe body through a reinforcement adhesive layer, and an outer reinforcement layer which is spirally wound, spans and presses on the special single-wall corrugated reinforcement pipe and of which two ends are adhered to the pipe wall of the cylindrical pipe body; the center line of each hollow reinforcing rib is overlapped with the center line of a lapping and fusing part of wings of an adjacent special rod. The pipe is high in stability and welding effect, the crest height of the pipe is higher than that of a double-wall corrugated pipe, the continuously wound reinforced corrugated pipe can be produced by matching common wound pipe production equipment with a suitable die, and equipment investment is small.

Description

technical field [0001] The present invention relates to continuous winding reinforced corrugated pipe and its manufacturing method. Background technique [0002] In urban sewer pipes and various sewage pipes, various forms of plastic pipes are used more and more. Because there is usually no pressure in the pipe, in order to improve its resistance to external pressure or impact, plastic pipes with different forms of rib structures on the outer periphery of the pipe wall have been used in many cases. At present, there are several kinds of plastic pipes with this structural form and corresponding preparation methods as follows: a kind of plastic pipes are directly extruded. The most representative ones are double-wall corrugated pipes and circumferentially reinforced pipes formed by direct extrusion. The inner wall layer is a continuous and smooth surface, and the outer wall layer is a hollow corrugated structure or a solid annular rib structure. The axial partial cross-secti...

AI Technical Summary

Problems solved by technology

Although the surface of the fins where the flame goes is melted, the high temperature can easily cause the decomposition and fracture of the plastic macromolecules, and the quality of the welded joints is even more difficult to guarantee.

Therefore, in actual use, it can be seen that when these pipes are knocked or partially squeezed during loading, unloading, transportation or construction, it is often easy to cause cracks at the welded joints of the pipes, or spread out and be damaged in the form of a helical spring.

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