Steel belt reinforced spiral corrugated pipe and its production process

Abstract

The invention relates to a steel strip enhanced spiral corrugated pipe and a production technology thereof. A polyethylene inner layer and a polyethylene outer layer each comprise HDPE, a carbon nanometer tube, epoxidized soybean oil, aluminum nitride, a dispersing agent, a lubricating agent, a defoaming agent, a coupling agent, an anti-oxygen agent and black master batch. The black master batch comprises HDPE, active calcium, a dispersing agent, a lubricating agent, a toughness reinforcing agent and carbon black. The preparation technology comprises the steps that a steel strip is subjected to texturing treatment, the surface is coated with a bonding resin layer, the black master batch and the bonding resin are prepared respectively, at first, the polyethylene inner layer is extruded out,then the steel strip is placed on the polyethylene inner layer, then components of the polyethylene outer layer are mixed and pelleted, and the polyethylene outer layer is extruded out and compositedon the steel strip. The material components of the inner layer and the outer layer are selected consistently, a base material of the bonding resin layer is consistent with a base material of the inner layer and a base material of the outer layer, the situation of layering occurring in the later period of using is improved, and the situation that due to different machining conditions of differentmaterials, caused carbonization influences unevenness of the performance of the materials is improved.

Description

technical field [0001] The invention relates to the technical field of buried water pipes, in particular to a steel belt reinforced spiral corrugated pipe and a production process thereof. Background technique [0002] The steel belt reinforced polyethylene spiral corrugated pipe is made of high-density polyethylene as the base, and the steel belt coated with adhesive resin on the surface is formed into a wave shape as the main support structure, and is wound and composited with the polyethylene material to form an integral structural wall pipe. And the steel belt reinforced polyethylene corrugated pipe combines the high stiffness and strength of steel with the flexibility, corrosion resistance and wear resistance of polyethylene, which can meet the application requirements of various projects and has been widely used in highways. , urban municipal drainage engineering construction and other fields, especially in large-scale basic engineering projects that require a long ser...

AI Technical Summary

Problems solved by technology

However, when extrusion molding, the calcium carbonate powder is directly mixed with the resin, which is prone to uneven dispersion. Even if a dispersant is added, the calcium carbonate powder may still be agglomerated, which will affect the quality of the bellows.

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