Production process of HDPE socket electric hot melting vertical plastic steel coating film winding pipe

Abstract

The invention provides a production process of an HDPE socket electric hot melting vertical plastic steel coating film winding pipe, and relates to the technical field of municipal sewage systems. According to the production process of the HDPE socket electric hot melting vertical plastic steel coating film winding pipe, the plastic steel coating film winding pipe comprises the following production processes that S1, polyethylene plastic is heated and melted, the granular polyethylene plastic is made to be in a molten state, and heat preservation treatment is conducted in a heating container; S2, the steel belt is placed in the mold, the steel belt is fixed between the inner wall and the outer wall of the plastic-steel film-coated winding pipe after the plastic-steel film-coated winding pipe is subjected to injection molding; S3, molten polyethylene plastic is poured into a mold, and the molten polyethylene plastic is evenly distributed at all corners of the mold through vibration equipment. And by using the HDPE coating, external vertical ribs are protected, water is prevented from seeping into the pipeline to cause rusting of the steel belt, and the pipeline can have higher ring stiffness and ring flexibility.

Description

technical field [0001] The invention relates to the technical field of municipal sewage discharge systems, in particular to a production process of HDPE socket electric hot-melt vertical plastic-steel coated winding pipes. Background technique [0002] Plastic-steel winding pipe (SRWPE) is made of steel-plastic composite special-shaped strips that are spirally wound and welded (extruded and welded on the overlapping surface). The inner wall is smooth and flat, and the specification is DN200-DN3000mm. This kind of pipe has the advantages of corrosion resistance, light weight, easy installation, large flow rate, long life (50 years), etc. It can replace pipes made of high energy consumption materials (cement, cast iron, ceramics, etc.), and is an environmentally friendly green product. Performance characteristics of winding pipe: 1. Safe and reliable ring stiffness Compared with pure plastic pipes, the reinforced steel belt is very easy to make pipes, especially large-diameter...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a production process of HDPE socket electrothermally fused vertical plastic-steel coated winding pipe, which solves the problem of increasing the ring flexibility and creep resistance of the pipe