Steel strip reinforced PVC pipe and production process thereof

A PVC pipe and production process technology, applied in the field of PVC pipe, steel belt reinforced PVC pipe and its production process, can solve the problem of high linear expansion coefficient, low service life, poor impact resistance, pressure bearing capacity and oxygen barrier performance and other problems, to achieve the effect of excellent impact resistance, long service life and excellent oxygen barrier performance

Inactive Publication Date: 2016-12-14
浙江中财管道衍生产品有限公司
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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.

Method used

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  • Steel strip reinforced PVC pipe and production process thereof

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Embodiment Construction

[0034] refer to figure 1 , a steel belt reinforced PVC pipe of the present invention, comprising an inner PVC pipe layer 1, a first hot-melt adhesive layer 2, a steel belt layer 3, a second hot-melt adhesive layer 4 and an outer PVC pipe layer 5, the first hot-melt adhesive layer 5 The melt adhesive layer 2 is distributed between the inner PVC pipe layer 1 and the steel belt layer 3, the second hot melt adhesive layer 4 is distributed between the outer PVC pipe layer 5 and the steel belt layer 3, and the steel belt layer 3 passes through the first A hot-melt adhesive layer 2 and a second hot-melt adhesive layer 4 are sandwiched between the inner PVC pipe layer 1 and the outer PVC pipe layer 5. When a steel belt reinforced PVC pipe is a cold water pipe, the inner PVC pipe layer 1 What adopted with outer PVC pipe layer 5 is PVC-U pipe; When a kind of steel strip reinforced PVC pipe is hot water pipe, what described inner PVC pipe layer 1 and outer PVC pipe layer 5 adopted is PVC...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/082B32B15/18B32B27/30B32B1/08B29D23/00
CPCB32B15/082B29D23/001B32B1/08B32B15/18B32B27/304
Inventor 俞仲达孙建忠陈江华黄获君何孟文
Owner 浙江中财管道衍生产品有限公司
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