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Fiber mesh tape-wound and reinforced composite pipe, preparation process and device

A fiber mesh, reinforced composite technology, applied in mechanical equipment, pipes, rigid pipes, etc., can solve the problems of unstable performance in long-term use, poor interface bonding of filament winding reinforced composite pipes, etc., to reduce the number of production workers, The effect of improving mechanical properties and reducing costs

Active Publication Date: 2013-04-03
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a fiber mesh belt winding reinforced composite pipe with excellent mechanical properties and long-term stable performance, as well as its preparation process and equipment, which solves the problem of the current fiber winding reinforced composite pipe interface. Defects of poor combination and unstable performance in long-term use

Method used

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  • Fiber mesh tape-wound and reinforced composite pipe, preparation process and device
  • Fiber mesh tape-wound and reinforced composite pipe, preparation process and device
  • Fiber mesh tape-wound and reinforced composite pipe, preparation process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Aramid fiber mesh belt winding reinforced polyethylene composite pipe

[0031] 95 parts of polyethylene (PE80) and 5 parts of black polyethylene masterbatch are mixed and dried, then added to a single-screw extruder, heated, sheared and plasticized, and then extruded. The extrusion temperature is 180-200°C. The extruded resin is pulled into the pre-vacuum spray sizing box to form a core pipe with the help of the traction tube, and the temperature of the circulating spray cooling water is 14-18°C. The core pipe passes through the front heating box, and the heating temperature is 220-240°C to melt the surface of the pipe, and then it passes through the bonding resin to coat the die head, and the bonding resin extrusion temperature is 200-220°C. The first and second winding machines wind the glued pipe successively, the speed range of the winding machines is 2-40rpm, and the winding tension is 150-600N. The wound pipe passes through the post-heating box, the he...

Embodiment 2

[0032] Example 2: Fiberglass grid tape winding reinforced polypropylene composite pipe

[0033]Mix and dry 96 parts of random copolymerized polypropylene (PP-R) and 4 parts of green masterbatch, add them to a single-screw extruder, heat, shear and plasticize, and then extrude. The extrusion temperature is 210-230°C. The extruded resin is pulled into the pre-vacuum spray sizing box to form a core pipe with the help of the traction tube, and the temperature of the circulating spray cooling water is 14-18°C. The core pipe passes through the front heating box, and the heating temperature is 230-240°C to melt the surface of the pipe, and then it passes through the bonding resin to coat the die head, and the bonding resin extrusion temperature is 200-220°C. The first and second winding machines successively wind the glued pipes, the speed range of the winding machines is 2-40rpm, and the winding tension is 150-400N. The wound pipe passes through the post-heating box, the heating te...

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Abstract

The invention relates to a fiber mesh tape-wound and reinforced composite pipe, a preparation process and a device, belonging to the technical field of forming processes of composite pipes. The composite pipe comprises an inner-layer core pipe and a post-coated layer, as well as a fiber mesh tape arranged between two layers, wherein the inner-layer core pipe is extruded by a core pipe extruding machine, the adhesive resin fiber mesh tape is heated through a post-heating box, and the composite pipe is finally obtained by traction through a post-traction machine, sizing through a vacuum spraying and sizing box and the like. According to the composite pipe disclosed by the invention, the technology is adopted, the preparation process is simple, the existing tape plastic covering treatment process and the composite pipe forming process are combined into a whole, the number of workers for production is reduced, and the degree of automation is improved; furthermore, the used device is a conventional device, and the cost is reduced; and in addition, adhesive resin is firstly coated on the outer surface of the core pipe, and the plain woven fiber mesh tape is further wounded, so that the interface problem in the pipe is effectively solved, the mechanical properties of the pipe are upgraded and the stability of the pipe during long-term use is also improved.

Description

technical field [0001] The invention belongs to the technical field of composite pipe forming technology, and in particular relates to a reinforced composite pipe wound with a fiber grid tape using reinforced fiber plain weave and a preparation process and equipment. Background technique [0002] With the rapid development of petroleum, natural gas and chemical industries, thousands of kilometers of chemical fluid pipelines are newly laid every year in my country. The use of traditional metal pipelines represented by steel pipes in these fields has exposed many problems such as corrosion and perforation, scaling on pipe walls, difficulties in installation and laying, and high maintenance and repair costs. At the same time, the consequences of environmental pollution, safety accidents, production stoppage and increased energy consumption caused by the above problems have seriously affected the development of the national economy and the balance of the ecological environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14B29C69/02B29C47/00B29C47/02B29C53/56
Inventor 许顺刘宇强霍福磊
Owner ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD
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