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Thermoplasticity winding pressure pipeline and manufacturing method thereof

A pressure pipe and thermoplastic technology, applied in the direction of rigid pipes, pipes, mechanical equipment, etc., can solve the problems of poor wettability of reinforced layer resin and low performance of pipes, and achieve convenient transportation and construction, good impact resistance, high strength and rigidity Effect

Inactive Publication Date: 2015-03-18
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent application with publication number CN101418886A discloses a continuous fiber-reinforced thermoplastic composite pipe, which comprises a three-layer structure of an inner liner, a reinforcement layer and an outer surface layer. However, the reinforcement layer is prepared by first laying continuous fibers or The fabric is then impregnated with thermoplastic resin. The reinforced layer prepared by this process has poor resin wettability and low pipe performance. It can be seen from the examples that the burst pressure of a 62mm inner diameter pipe with a wall thickness of 5mm is only 15MPa

Method used

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  • Thermoplasticity winding pressure pipeline and manufacturing method thereof
  • Thermoplasticity winding pressure pipeline and manufacturing method thereof
  • Thermoplasticity winding pressure pipeline and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1 ~ Figure 3 As shown, a thermoplastic winding pressure pipe has an inner diameter of 150mm and is composed of an inner lining layer 1, a structural layer 2 and an outer protective layer 3 from the inside to the outside (see Table 1 for the structural composition data).

[0042] image 3 Among them, the structural layer 2 is composed of continuous fiber 4 reinforced thermoplastic 5 prepreg tape, and the prepreg tape is wound on the inner lining layer 1 through cross and hoop winding processes, and the thickness of the structural layer is 3 mm; the outer protective layer 3 is made of thermoplastic Sheet construction, 1 mm thick, by winding a thermoplastic sheet on the structural layer 2 .

[0043] Table 1

[0044] pipe

thickness

material

winding angle

heating temperature

Lining

2mm

PP pipe

hoop winding

preheating, surface melting

structural layer

3mm

40%PP+60%glass

65°cross winding / loop...

Embodiment 2

[0052] Such as Figure 1 ~ Figure 3 As shown, a thermoplastic winding pressure pipe has an inner diameter of 500mm and is composed of an inner lining layer 1, a structural layer 2 and an outer protective layer 3 from the inside to the outside (see Table 2 for the structural composition data).

[0053] image 3 Among them, the structural layer 2 is composed of continuous fiber 4 reinforced thermoplastic 5 prepreg tape, and the prepreg tape is wound on the inner liner 1 through cross and hoop winding processes, with a thickness of 10mm; the outer protective layer 3 is made of thermoplastic sheet Constructed, with a thickness of 1 mm, by winding a thermoplastic sheet on the structural layer 2 .

[0054] Table 2

[0055]

[0056] The preparation method is as follows:

[0057] (1) Wrap a polypropylene sheet with a thickness of 1mm on the mandrel to form an inner lining.

[0058] (2) After the continuous fiber-reinforced thermoplastic prepreg tape is preheated by an infrared ...

Embodiment 3

[0062] Such as Figure 1 ~ Figure 2 As shown, a thermoplastic winding pressure pipe, the pipe includes an inner lining layer 1, a structural layer 2 and an outer protective layer 3 from the inside to the outside, and the inner diameter of the pipe is 80 mm (see Table 3 for its structural composition data).

[0063] image 3 Among them, the structural layer 2 is a continuous glass fiber 4 reinforced polypropylene 5 prepreg tape, which is heated and wound in a cross-hoop direction on the surface of the inner lining layer to form a winding layer with a cross-hoop structure; the outer protective layer is a polypropylene sheet heated The winding layer formed on the surface of the structural layer after winding.

[0064] table 3

[0065]

[0066] The preparation method is as follows:

[0067] (1) Put the PP pipe with an inner diameter of 80mm and a wall thickness of 1mm directly on the expansion and contraction shaft, and then expand and tighten the expansion and contraction s...

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Abstract

The invention belongs to the technical field of pipeline materials and relates to a thermoplasticity winding pressure pipeline and a manufacturing method of the thermoplasticity winding pressure pipeline. The thermoplasticity winding pressure pipeline sequentially comprises a lining layer, a structural layer and an outer protecting layer from interior to exterior, the inner walls of the lining layer and the structural layer are connected, the outer wall of the structural layer and the outer protecting layer are connected, and the structural layer is a constant fiber reinforcing thermoplasticity material presoaking belt winding layer. The manufactured thermoplasticity winding pressure pipeline has a higher strength and rigidity and can manufacture a large-caliber pipeline, and the thermoplasticity winding pressure pipeline is excellent in lightness, good in anti-impact performance, environment-friendly and convenient to transport and construct.

Description

technical field [0001] The invention belongs to the technical field of pipeline materials, and relates to a thermoplastic winding pressure pipeline and a preparation method thereof. Background technique [0002] There are two main types of pipes used in industry and life, metal pipes and non-metal pipes. Metal pipes are mainly steel pipes, and non-metal pipes are mainly plastic pipes and fiberglass pipes. Steel pipes have high strength and strong pressure resistance, but they are heavy, troublesome in transportation and construction, and not resistant to corrosion. They must be treated with anti-corrosion in corrosive occasions, and the cost is high. Plastic pipes are light and have good corrosion resistance, but the strength of plastic pipes is poor. Generally, they are only used in low-pressure fields. When they are forced to be used in high-pressure fields, the wall thickness can only be increased, which greatly increases the cost. over steel pipe. At present, FRP pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/16B29C53/58
CPCB29C53/56F16L9/16
Inventor 杨桂生徐龙彬
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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