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Glass fiber reinforced plastic flexible composite pipe, production device and production method

A technology for flexible composite pipes and production equipment, applied in the direction of hoses, pipes, tubular objects, etc., can solve the problems of limited process preparation conditions, pipeline sealing and safety affecting the use effect, etc., to reduce the number of joints, facilitate processing and Continuous, time-saving effect

Pending Publication Date: 2021-04-16
WEIHAI NACHUAN PIPE FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors found that the existing glass steel pipes mainly use glass fiber and its products as reinforcing materials, and use unsaturated polyester resin, epoxy resin or phenolic resin with high molecular weight components as matrix materials, and then add curing agents and other auxiliary agents to pass through. Prepared by fixed-length reciprocating winding process, the standard effective length of this kind of glass steel pipe is usually 6m and 12m, the process preparation conditions are limited, and more joints are needed for connection in actual installation and application, so the sealing and safety of pipeline transportation will affect Effect

Method used

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  • Glass fiber reinforced plastic flexible composite pipe, production device and production method
  • Glass fiber reinforced plastic flexible composite pipe, production device and production method
  • Glass fiber reinforced plastic flexible composite pipe, production device and production method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] In a typical embodiment of the present invention, such as figure 1 As shown, this embodiment discloses a flexible composite pipe made of glass fiber reinforced plastics, which is composed of a three-layer structure. From the inside to the outside, there are respectively a thermoplastic resin lining layer 3, a glass fiber reinforced plastic reinforcement layer 2, and a thermoplastic resin outer protective layer 1. The three-layer structure The fiberglass reinforced layer 2 includes glass fibers wound outside the thermoplastic resin lining layer, the thermosetting resin and thermoplastic resin mixture attached to the glass fibers, and the thermoplastic resin outer protective layer 1 is attached to the fiberglass reinforced layer 2 outer thermoplastic resin layer.

[0031] Wherein, the thermoplastic resin lining layer 3 is prepared by continuously extruding the thermoplastic resin lining pipe online through an extruder, and the thermoplastic resin can be PE, PP, PA, PVDF, ...

Embodiment 2

[0038] In a typical embodiment of the present invention, such as figure 2 As shown, this embodiment discloses a production device for FRP flexible composite pipe, which includes a lining pipe extruder 10, a winding machine 11, a heating oven 12, a coating extruder 13, a tractor 14 and a winding Large plate 15, wherein, the lined pipe extruder 10 is used to extrude a thermoplastic resin lined pipe, the central hole of the winding machine 11 is used for the thermoplastic resin lined pipe to pass through, and the heating oven 12 is used for At the same time, the curing of the thermosetting resin and the bonding of the thermoplastic resin are completed, the covering extruder 13 is used to extrude the outer protective layer 1 of the thermoplastic resin, the tractor 14 is used to draw the finished pipe, and the winding The large plate 15 is used for winding the finished product of the FRP composite flexible pipe.

[0039] Those skilled in the art can understand that the lined pipe...

Embodiment 3

[0044] In a typical implementation of the present invention, this embodiment discloses a production method of a flexible FRP composite pipe, using a production device for a FRP flexible composite pipe as described in Example 1, comprising the following steps:

[0045] 1) A plurality of yarn bobbins 114 and dipping nozzles 111 are simultaneously arranged on a winding machine 11, each yarn bobbin 114 is matched with a dipping nozzle 111, so that the lining tube passes through the center hole of the winding machine 11;

[0046] 2) The dipping nozzle 111 draws the resin liquid from the dipping tank 113 through the pipeline, and combines with the fiber bundles from the yarn drum 114 passing through the dipping nozzle 111, and the impregnated fiber bundles are in accordance with the set angle On-line continuous winding on the inner liner;

[0047] 3) Start the oven to realize the curing of the thermosetting resin and at the same time realize the bonding of the thermoplastic resin; ...

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Abstract

The invention discloses a glass fiber reinforced plastic flexible composite pipe, a production device and a production method, and belongs to the field of resin molding. A glass fiber reinforced plastic flexible composite pipeline which can be continuously produced and coiled by changing a processing method and components of glass fiber reinforced plastic raw materials, is large in continuous length and small in joint use quantity, and the effectiveness, safety and reliability of conveying of the pipeline are ensured. The composite pipe comprises a thermoplastic resin lining layer and a glass fiber reinforced plastic reinforcing layer which are sequentially and tightly attached from inside to outside, and the glass fiber reinforced plastic reinforcing layer comprises glass fibers wound around the outer side of the thermoplastic resin lining layer, thermosetting resin attached to the glass fibers and a thermoplastic resin mixture.

Description

technical field [0001] The invention belongs to the field of resin molding, and in particular relates to a flexible composite pipe made of glass fiber reinforced plastics, a production device and a production method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The inventors found that the existing glass steel pipes mainly use glass fiber and its products as reinforcing materials, and use unsaturated polyester resin, epoxy resin or phenolic resin with high molecular weight components as matrix materials, and then add curing agents and other auxiliary agents to pass through. Prepared by fixed-length reciprocating winding process, the standard effective length of this kind of glass steel pipe is usually 6m and 12m, the process preparation conditions are limited, and more joints are needed for connection in actual installation and application, so t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08F16L11/12B29D23/00
Inventor 王森王晓欣时晨慈胜宗
Owner WEIHAI NACHUAN PIPE FITTINGS
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