High-strength steel wire net framework polyethylene pipe

Abstract

The invention relates to a high-strength steel wire net framework polyethylene pipe. The high-strength steel wire net framework polyethylene pipe comprises an inner layer, a reinforcement layer and a protective layer, wherein the inner layer and the protective layer are both made of inflaming-retarding antistatic polyethylene materials, the reinforcement layer is composed of a steel wire net layer and a hot melt adhesive layer, a hot melt adhesive layer is arranged between the steel wire net layer and the inner layer, and another hot melt adhesive layer is arranged between the steel wire net layer and the protective layer. The steel wire net layer is composed of one or two layers of steel wire nets, hot melt adhesives are arranged between the two layers of steel wire nets, and the net holes of the outer-layer steel wire net are larger than those of the inner-layer steel wire net. Compared with the prior art, the materials of the inner layer and the outer layer of the polyethylene pipe have the inflaming-retarding and antistatic functions, and the polyethylene pipe can be used for ventilation or water feeding and drainage under a coal mine shaft; the middle reinforcement layer is a steel wire net framework composed of the steel wire nets and the hot melt adhesives, is high in strength and is low in manufacturing cost. The inner corners of the end surfaces of the polyethylene pipe are of a chamfering or arc-shaped corner structure, burr edges are not be generated at a pipe wall inner cavity in the sweat soldering process, and therefore normal flowing of media in the pipe is not hindered.

Description

technical field [0001] The invention relates to a polyethylene pipe, in particular to an explosion-proof polyethylene pipe with a steel mesh skeleton reinforced by a steel mesh. Background technique [0002] Existing polyethylene pipes or PE pipes generally include PE pipes made of PE materials alone, and composite PE pipes made of PE materials and steel wires or steel strips. Compared with composite PE pipes, PE pipes made of separate PE materials usually have thicker pipe walls. Not only do they use more PE materials, but they also have low pressure resistance, so they can only be used as low-pressure pipes. At present, the existing steel wire or steel belt PE composite pipe is usually made of steel wire or steel belt and ordinary PE material. The PE material usually does not have flame retardant and antistatic functions, so it cannot be used for underground ventilation or water supply and drainage in coal mines. [0003] The end faces of existing polyethylene pipes are g...

AI Technical Summary

Problems solved by technology

At present, the existing steel wire or steel belt PE composite pipe is usually made of steel wire or steel belt and ordinary PE material. The PE material usually does not have flame retardant and antistatic functions, so it cannot be used for ventilation or water supply and drainage in coal mines

[0003] The end faces of existing polyethylene pipes are generally planar structures, and the inner corners and outer corners of the pipe end faces are right-angled structures. The PE material squeezes to both sides of the seam and forms burrs in the inner cavity of the pipe wall, thus affecting the normal flow of the medium in the pipe

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