Super large caliber and non-excavation-use PE pollution discharge tubular product and manufacturing method thereof

Abstract

The invention relates to a super large caliber and non-excavation-use PE pollution discharge tubular product and a manufacturing method thereof, wherein, the tubular product are manufactured by the following materials which are arranged according to the following mass percentage after the steps of pelleting and extrusion molding: 60-85% of PE100 pipeline special material; 5-15% of calcium carbonate superfine powder; 7-22% of unit triplet blending modified resin; 1-3% of high molecular weight polyethylene; and 0.2-2% of fluoropolymer. The method comprises the following steps: mixing PE100 pipeline special material accounting for 20-30% of total volume of addition evenly with other components according to proportion and obtaining master batch by extrusion and pelleting; mixing the excess PE100 pipeline special material evenly with the master batch and colorant and drying the mixture for 2-4 hours at the temperature of 0-80 DEG C; and then obtaining fixed-length tubular products after the steps of extrusion, vacuum sizing, cooling and cutting. The tubular products has the characteristic of integration; hot welding is carried out on the pipelines; the pipelines have fine flexibility and scratching-and-cracking-resisting capcacity; in addition, the pipelines has more unique technological and economic advantages when applied to drag construction of non-excavation works.

Description

technical field [0001] The invention relates to a sewage discharge pipe material for non-excavation dragging construction and a preparation method thereof. Background technique [0002] Underground pipelines are an important infrastructure for the survival and development of cities. They are responsible for transmitting important information and energy, and are called the blood vessels of cities. However, with the continuous development of the world economy, the rapid growth of the population, and the continuous acceleration of the urbanization process, the original pipeline design capacity and operation capacity can no longer meet the requirements of modern cities, and the pipeline needs to be continuously built, rebuilt, repaired and expanded. If a large excavation is used for construction, it will cause traffic jams, damage to green gardens, and sometimes because of the existence of rivers, water networks, overpasses, railways, airports and other buildings, it will bring ...

AI Technical Summary

Problems solved by technology

[0011] The present invention provides a super-large-diameter non-excavation PE sewage discharge pipe and its preparation method, which is to solve the technical problem of filling the gap in the production and research and development of super-large-diameter non-excavation PE sewage discharge pipes

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