High-stiffness composite tube formed through fixed length winding and manufacturing method thereof

A winding forming, high rigidity technology, applied in the direction of rigid pipes, ceramic molding machines, chemical instruments and methods, etc., can solve the problems of high construction requirements, inconvenient construction and transportation, high cost of matrix material resin, etc., and achieve excellent corrosion resistance and hydraulic strength performance, good economic performance, and solve the effect of low stiffness

Active Publication Date: 2014-02-05
WUHAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its rigidity is low, it is a flexible pipe, and its deformation is relatively large, so it has high requirements for construction.
If you want to further increase its height without changing the structure of the existing FRP pipe, the cost will increase a lot, mainly because the cost of the matrix material resin is too high
[00

Method used

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  • High-stiffness composite tube formed through fixed length winding and manufacturing method thereof
  • High-stiffness composite tube formed through fixed length winding and manufacturing method thereof
  • High-stiffness composite tube formed through fixed length winding and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] According to the above preparation process steps, the following process parameters are used for preparation:

[0045] The inner lining layer has a resin content of 65wt% and is reinforced with glass fiber surface mat and knitted mat, with a thickness of 1.2mm;

[0046] The inner structure layer and the outer structure layer have a resin content of 25wt% and are reinforced with continuous glass fiber yarns, with a thickness of 0.3 mm; the outer structure layer exerts tension on the continuous glass fiber yarns during the winding molding process, and the size is the strength of the continuous glass fiber yarns 1%;

[0047] The outer protective layer has a resin content of 90wt% and is reinforced with glass fiber surface mat, with a thickness of 0.15mm;

[0048] The middle structural layer is PVA fiber concrete cement-based composite material, the fiber content is 1wt%, and the thickness is 20mm;

[0049] The interface adaptation layer is Record's 2 The mixture of two-...

Embodiment 2

[0052] According to the above preparation process steps, the following process parameters are used for preparation:

[0053] The inner lining layer has a resin content of 90wt% and is reinforced with glass fiber surface mat and knitted mat, with a thickness of 5mm;

[0054] The inner structure layer and the outer structure layer have a resin content of 35wt% and are reinforced with continuous glass fiber yarns, with a thickness of 30 mm respectively; the outer structure layer exerts tension on the continuous glass fiber yarns during the winding molding process, and the size is 100% of the strength of the continuous glass fiber yarns. 50%;

[0055] The resin content of the outer protective layer is 95wt% and reinforced with glass fiber surface mat, with a thickness of 2mm;

[0056] The middle structural layer is a glass fiber concrete cement-based composite material, the fiber content is 5wt%, and the thickness is 100mm;

[0057] The interface adaptation layer is Record's 2...

Embodiment 3

[0060] According to the above preparation process steps, the following process parameters are used for preparation:

[0061] The inner lining layer has a resin content of 80wt% and is reinforced with glass fiber surface mat and knitted mat, with a thickness of 3mm;

[0062] The inner structure layer and the outer structure layer have a resin content of 30wt% and are reinforced with continuous glass fiber yarns, with a thickness of 15mm respectively; the outer structure layer exerts tension on the glass fiber surface mat during the winding molding process, and the size is 1% of the strength of the glass fiber surface mat. 25%;

[0063] The outer protective layer has a resin content of 92wt% and is reinforced with glass fiber surface mat, with a thickness of 1mm;

[0064] The middle structural layer is steel fiber concrete cement-based composite material, the fiber content is 3wt%, and the thickness is 50mm;

[0065] The interface adaptation layer is Record's 2 The mixture o...

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Abstract

The invention discloses a high-stiffness composite tube formed through fixed length winding. The tube wall of the composite tube structurally and sequentially comprises an inside liner, an inner structure layer, an interface adaptation layer, an intermediate structure layer, an interface adaptation layer, an outer structure layer and an outer protective layer from inside to outside, wherein the inside liner, the inner structure layer, the outer structure layer and the outer protective layer are made of resin matrix composites, and the resin matrix composite is made of glass fibers and fabrics thereof, and resin; the intermediate structure layer is made of fiber reinforced concrete cement-based composite material; the interface adaptation layers are made of the mixture of organic bonding material and quartz sand. The prepared composite tube has the advantages that the stiffness of the composite tube is more than ten times of that of a commonly used glass steel tube at present, the weight of the composite tube is one third of that of a normal concrete pipe, the defects that the glass steel tube is low in stiffness and the concrete pipe is heavy are overcome, the cost of the composite tube is between the costs of the glass steel tube and the concrete pipe, and the composite tube is good in economic performance.

Description

technical field [0001] The invention relates to a fixed-length winding high-rigidity composite pipe and a manufacturing method thereof. Background technique [0002] FRP pipe is a resin-based composite pipe with light weight, high strength, corrosion resistance, and excellent hydraulic performance. It is widely used in water supply and drainage pipeline engineering and other industries. However, its rigidity is low, and it is a flexible pipe with large deformation and high construction requirements. If you want to further increase its height without changing the structure of the existing glass steel pipe, the cost will increase a lot, mainly because the cost of the base material resin is too high. [0003] The cement-based material concrete is relatively cheap. The wall thickness of cement-based pipes is very thick and the rigidity is very high. However, a single cement-based pipe such as PCCP is not corrosion-resistant, has poor hydraulic performance, is too bulky, and is ...

Claims

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Application Information

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IPC IPC(8): F16L9/14B32B1/08B32B17/04B32B13/02B28B21/44B29D23/00
CPCB28B21/44B29D23/001B32B1/08B32B13/02B32B17/04F16L9/14
Inventor 陈建中宋建国宋建华李卓球张小玉宋鹏飞韩继明方玺吕泳
Owner WUHAN UNIV OF TECH
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