Steel belt embedded type ultra-high molecular weight polyethylene compound pipe

Abstract

The invention discloses a steel belt embedded type ultra-high molecular weight polyethylene compound pipe and belongs to the technical field of pipes. The steel belt embedded type ultra-high molecular weight polyethylene compound pipe is provided with a substrate pipe, wherein slots, the thickness and width of which are matched with the thickness and width of steel belts, are uniformly arranged on periphery of an outer wall of the substrate pipe; the steel belts are embedded into the slots; steel wires are spirally wrapped and wound on the steel belts along the direction vertical to the axial direction of the substrate pipe; a polyethylene pipe with a molecular weight above 250 ten thousand units, which is used for wrapping a strip spiral wound radial cross-linked polyethylene stretching rubber belt or wrapping a hot melting PE (polyethylene) plastic, is taken as the outer wall; the thickness of the steel belts is 0.5-3 millimeters; a distance between the slots is 10-20 millimeters; the steel belts are wrapped by the hot melting adhesives coated with high molecular weight polyethylene; the steel wires are spring steel wires with diameters of 0.8-2.5 millimeters; and the polyethylene with the molecular weight above 250 ten thousand units is taken as a raw material of the substrate pipe. The steel belt embedded type ultra-high molecular weight polyethylene compound pipe has the advantages of reasonable structure design, strong wear-resisting decay resistance, high loading capacity, wide application range and long service life.

Description

technical field [0001] The invention relates to a polyethylene pipe, in particular to a steel strip embedded ultra-high molecular weight polyethylene composite pipe, which is mainly used in petroleum, chemical, mining, construction and other industries. Background technique [0002] In the prior art, there are multiple structures of composite pipes lined with steel wires. For example, CN2202838Y discloses a composite pipe with a layer of metal braided mesh sandwiched between the inner wall and the outer wall of the pipe; CN2142168Y discloses at least one layer of wound steel wire layer and plastic A composite pipe with an adhesive layer between the core pipe and the plastic outer layer; the impact strength, tensile strength, wear resistance, environmental cracking resistance and fatigue resistance of the above structural pipes are all low, and its bearing pressure can only reach 2.5MPa. There are also polyethylene or silane crosslinked polyethylene materials as the inner wa...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing pipe design structure and provide a "steel strip embedded ultra-high molecular weight polyethylene composite pipe"

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