Steel strip reinforced PVC pipe and production process thereof

Abstract

The invention provides a steel strip reinforced PVC pipe which comprises an inner PVC pipe layer, a first hot melt adhesive layer, a steel strip layer, a second hot melt adhesive layer and an outer PVC pipe layer; the first hot melt adhesive layer is distributed between the inner PVC pipe layer and the steel strip layer, the second hot melt adhesive layer is distributed between the outer PVC pipe layer and the steel strip layer, and the steel strip layer is sandwiched between the inner PVC pipe layer and the outer PVC pipe layer through the first hot melt adhesive layer and the second hot melt adhesive layer. The steel strip layer is added on a traditional PVC pipe, and a special production process is used in production and processing, so that a compound pipeline having the advantages of excellent shock resistance, strong loading capacity, excellent oxygen resistance, low linear expansion coefficient and long service life is obtained, and the PVC pipeline can be used in the fields of municipal water supply, high building water supply, petroleum, chemical engineering, buildings, shipbuilding, communication, electric power and underground gas transmission.

Description

【Technical field】 [0001] The invention relates to the technical field of PVC pipes, in particular to the technical field of a steel strip reinforced PVC pipe and its production process. 【Background technique】 [0002] The main component of PVC pipe is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, ductility, etc. PVC pipe (UPVC pipe) rigid polyvinyl chloride pipe is made of polyvinyl chloride resin, stabilizer, lubricant, etc. and then melted and extruded. It is the earliest plastic pipe that has been developed and applied. It is used as water supply and drainage, sheath pipe Wait. Existing PVC pipes generally have a simple single-layer structure, so the impact resistance, pressure bearing capacity and oxygen barrier performance are poor, and there are disadvantages such as high linear expansion coefficient and low service life. 【Content of invention】 [0003] The purpose of the present invention is to solve the problems in ...

AI Technical Summary

Problems solved by technology

Existing PVC pipes generally have a simple single-layer structure, so the impact resistance, pressure bearing capacity and oxygen barrier performance are poor, and there are disadvantages such as high linear expansion coefficient and low service life.

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