Nylon pipe for zinc-plating spiral steel liner

Abstract

The invention relates to a composite pipe, in particular to a nylon pipe for a zinc-plating spiral steel liner, consisting of a zinc-plating spiral light reinforcing pipe and an MC (Methyl Cellulose) nylon layer from outside to inside. MC nylon in a zinc-plating spiral steel composite nylon pipe is centrifugally cast on an inner wall of the zinc-plating spiral light reinforcing pipe. The nylon pipe is characterized in that the inner wall of the zinc-plating spiral light reinforcing pipe is threaded, so that the adhesive strength of the nylon and the zinc-plating spiral light reinforcing pipe is increased, and the expansion stretching coefficient of the nylon can be reduced. A crest spiral reinforcing rib is adhered to the outer wall of the zinc-plating spiral light reinforcing pipe, so that the strength of the zinc-plating spiral light reinforcing pipe is increased, and the production cost is reduced. The nylon pipe provided by the invention has the advantages of high strength, good wear resistance, large adaptive temperature range ( minus 50 to 150 DEG C), small smooth fluid abrasion of an inner wall, non-toxicity, no secondary pollution, no scale formation, convenience in construction and installation, long service life and the like.

Description

technical field [0001] The invention relates to a composite pipe, in particular to a galvanized spiral steel-lined nylon pipe. Background technique [0002] In the existing technology, the traditional steel-lined nylon pipe is generally composed of outer steel pipe and inner nylon. Nylon is made of MC nylon, which is not only MCPA cast nylon, but also called cast nylon. The raw material can be directly injected into the preheated mold for rapid polymerization. Reaction and solidification molding, made of MCPA cast nylon. It is a new type of engineering plastic, the material is a kind of polymer engineering plastic with high strength, good rigidity, low density, wear resistance, friction reduction, oil resistance, corrosion resistance, easy processing and molding, and moderate price. However, the requirements for temperature process control are relatively high, and if the control is not good, it will cause delamination between the nylon tube and the steel tube, and the influ...

AI Technical Summary

Problems solved by technology

However, the requirements for temperature process control are relatively high, and if the control is not good, it will cause delamination between the nylon tube and the steel tube, and the influence of the external temperature will cause the nylon tube to expand and break.

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