High-performance polyethylene double-wall corrugated pipe

Abstract

Provided is a high-performance polyethylene double-wall corrugated pipe. The high-performance polyethylene double-wall corrugated pipe comprises a smooth polyethylene pipe basal body and a polyethylene corrugated pipe layer attached to the outer surface of the pipe basal body. A plurality of discontinuous reinforcing ribs are arranged at the axial trough positions of the corrugated pipe layer. By means of the structural design of the reinforcing ribs of a forming module of the polyethylene double-wall corrugated pipe, the reinforcing ribs are distributed symmetrically and discontinuously along the troughs in the axial direction of the pipe with one mould as a distribution cycle. Through improvement on the structural design of the reinforcing ribs, inner stress generated in the extrusion molding process of the polyethylene double-wall corrugated pipe can be eliminated, so that the ring stiffness, ring flexibility and impact performance of the pipe are improved.

Description

Technical field [0001] The invention relates to a polyethylene double-wall corrugated pipe, in particular to a high-performance polyethylene double-wall corrugated pipe. Background technique [0002] In recent years, my country's plastic pipe industry has developed rapidly and its application fields have been expanding. It has become one of the important industries in the national economy. It is known as the blood vessel in the city and has attracted more and more attention from governments and related departments at all levels. At the same time, the relevant national policy guidance has further promoted the application of plastic pipes. The "National Chemical Building Materials Industry Tenth Five-Year Plan and the 2010 Development Plan Outline", the Ministry of Construction "Announcement on the Promulgation and Application of the Ministry of Construction and the Prohibition of the Use of Technologies" (Ministry of Construction No. 218) and other relevant documents proposed vari...

AI Technical Summary

Problems solved by technology

[0003] Due to the structure of the traditional polyethylene corrugated pipe, the outer surface of the corrugated pipe layer and the base pipe are independent of each other, such a structure is not conducive to the adjustment of the internal pressure of the corrugated pipe, and will also affect the overall stability of the corrugated pipe, resulting in a short service life

In order to overcome the existing problems of traditional polyethylene corrugated pipes, the polyethylene corrugated pipes in the market are provided with symmetrical and continuously distributed reinforcing ribs on the outer surface of the pipe matrix, which solves the problems of traditional polyethylene corrugated pipes to a certain extent, but still Problems with polyethylene bellows ring stiffness, ring flexibility and low impact performance

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