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Roll Forming Technology of Fiber Reinforced Thermoplastic Pipes

A thermoplastic and fiber-reinforced technology, which is applied in the field of roll-forming of fiber-reinforced thermoplastic pipes, to reduce equipment investment, facilitate large-scale production, and reduce production costs

Inactive Publication Date: 2011-11-30
HEFEI HUAYU RUBBER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] This method has the same disadvantage as other winding pipes, in that the fiber bundles are hoop-wound in the length direction of the pipe, and adjacent fiber bundles are spaced apart, thus, the longitudinal performance of the pipe is relatively low.

Method used

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  • Roll Forming Technology of Fiber Reinforced Thermoplastic Pipes
  • Roll Forming Technology of Fiber Reinforced Thermoplastic Pipes
  • Roll Forming Technology of Fiber Reinforced Thermoplastic Pipes

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Embodiment Construction

[0027] Combining with the technical route implemented by the present invention, the implementation of the present invention will be described as follows.

[0028] Fiber weaving into a net: use a weaving machine to weave fibers into a net. The diameter and quantity of warp and weft fiber bundles are determined according to the hoop performance and longitudinal performance of the pipe. The width of the fiber web is determined according to the diameter and wall thickness of the pipe. After the fibers are woven into a web, they are cleaned and sent to a drying oven.

[0029] Fiber web coupling treatment: According to the thermoplastics and fibers used, select the corresponding coupling agent and coat it on the surface of the fiber web.

[0030] Prefabricated strip-shaped sheet: After the thermoplastic is heated and plasticized in the extruder, a flat-mouth extruder is used to produce a strip-shaped thermoplastic sheet. The width of the strip-shaped thermoplastic sheet is substant...

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Abstract

Fiber-reinforced thermoplastic pipe rolling molding technology, the technical route is to first clean and dry the fiber-woven net, and perform coupling treatment; the thermoplastic is prefabricated into a strip-shaped sheet; The plastic sheet is calendered and stacked to form a strip-shaped composite sheet, and then the strip-shaped thermoplastic sheet and the strip-shaped composite sheet are stacked on the heated and rotating inner mold of the pipe, wound and rolled again, and cooled to form a fiber-reinforced thermoplastic. Plastic tubing. The invention has the advantages of simple process, low equipment investment cost, high production efficiency, and easy large-scale products. The longitudinal and transverse fibers of the fiber net improve the longitudinal and transverse properties of the pipe; adjusting the ratio of the longitudinal and transverse fibers of the fiber net can produce Pipes to meet different engineering requirements.

Description

technical field [0001] The invention relates to a thermoplastic composite pipe forming technology, in particular to a fiber reinforced thermoplastic pipe rolling forming technology. Background technique [0002] At present, the common thermoplastic composite pipe production technologies mainly include the following types: [0003] 1. Blending extrusion method: [0004] This method is mainly used in the production of steel-plastic composite pipes. The production process is as follows: first, a steel frame is prefabricated, and then the steel frame and plastic pellets are co-extruded. [0005] In this method, there are too many solder joints in the manufacture of the steel skeleton, and the welding process is difficult. The molding of the product requires high temperature and high pressure, which consumes a lot of energy and makes it difficult to enlarge the product. [0006] 2. Winding extrusion method: [0007] First, the core tube is extruded longitudinally by an extrud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29L23/00
Inventor 王健军毕经同吴坤张高峰
Owner HEFEI HUAYU RUBBER EQUIP
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