Steel wire reinforced composite water supply pipe

Abstract

The invention relates to a steel wire reinforced composite water supply pipe. The steel wire reinforced composite water supply pipe comprises an inner layer, a reinforced layer and a protection layer, wherein the inner layer is made from polyethylene; the reinforced layer consists of a steel wire mesh layer and hot melt adhesive layers; the protection layer is made from polyethylene; the hot melt adhesive layers are arranged between the steel wire mesh layer and the inner layer as well as between the steel wire mesh layer and the protection layer respectively; the steel wire mesh layer consists of two or three layers of steel wire meshes; the hot melt adhesive layers are arranged between adjacent layers of steel wire meshes; the meshes of the steel wire mesh layer decrease layer by layer from outside to inside. Compared with the prior art, the steel wire reinforced composite water supply pipe has the advantages that a reinforced layer consists of the steel wire meshes of different mesh sizes and steel wire diameters, and a hot melt adhesive is arranged between adjacent layers of steel wire meshes, so that the strength is enhanced, the processing difficulty is low, and the manufacturing cost is low. The inner corners of the end face of the polyethylene composite water supply pipe are chamfer angles or circular-arc angles, so that burrs are not formed on the inner cavity of a pipe wall in a hot melt welding process, and normal flow of liquid is not influenced.

Description

technical field [0001] The invention relates to a polyethylene water supply pipe, in particular to a polyethylene composite water supply pipe reinforced with steel wire mesh. Background technique [0002] Existing water supply pipes include polyethylene pipes or PE pipes. Generally, there are water supply pipes made of PE materials alone, and composite water supply pipes made of PE materials and steel wires or steel strips. Separate PE material water supply pipes usually have thicker pipe walls than composite water supply pipes. Not only do they use more PE materials, but they also have low pressure resistance, so they can only be used as low-pressure water pipes. At present, the existing steel wire or steel belt PE composite pipe is usually made of steel wire or steel belt and PE material. Chinese patent CN201764135U discloses an ultra-high molecular weight polyethylene composite pipe, including an inner wall, a metal layer, and an outer wall. The metal layer is composed o...

AI Technical Summary

Problems solved by technology

The above-mentioned patented process is more complicated, the processing equipment and processing are more difficult, and the manufacturing cost is higher

[0003] The end faces of existing polyethylene pipes or PE composite water supply pipes are generally planar structures, and the inner corners and outer corners of the pipe end faces are right-angled structures. It will cause the hot-melted PE material to squeeze to both sides of the seam and form burrs in the inner cavity of the pipe wall, thus affecting the normal flow of the liquid

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