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Fiber wrapped pipeline made from composite material

A technology for winding composite materials and composite materials, applied in the field of filament winding composite material pipes, can solve problems such as low axial tensile strength, and achieve the effects of light weight, low cost and high strength

Inactive Publication Date: 2007-07-25
曾建祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermoplastic pipe made by spiral winding has a cost advantage, but the axial tensile strength is too low (generally 30-40MPa), which cannot meet the needs of actual use

Method used

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  • Fiber wrapped pipeline made from composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] As shown in Figure 1, a fiber-wound composite material pipe has a pipe wall composed of an inner winding layer [1], a middle winding layer [2], and an outer winding layer [3].

[0027] The middle winding layer [2] is a dense structure, composed of thermoplastic composite materials, prepared using the following components (parts by weight):

[0028] Thermoplastic resin: 150 parts,

[0029] Filling: 350 parts.

[0030] Among them, the thermoplastic resin is modified coal tar pitch, and the filler is 200 parts of quartz sand, 100 parts of mineral crystal fiber and 50 parts of calcium carbonate.

[0031] The inner winding layer [1] is composed of a thermosetting composite material, prepared by the following components (components by weight):

[0032] Unsaturated polyester resin: 120 parts (containing 2% initiator),

[0033] Long staple and / continuous staple: 150 parts,

[0034] Filling: 2 servings.

[0035] Wherein, the long fiber is glass fiber, and its length is 250 ...

Embodiment 2

[0042] As shown in Figure 2, a fiber-wound composite material pipe, the pipe wall is composed of an inner winding layer [1], a middle winding layer [2], and an outer winding layer [3].

[0043] The middle winding layer [2] is a hollow structure, composed of thermoplastic composite materials, prepared using the following components (parts by weight):

[0044] Thermoplastic resin: 180 parts,

[0045] Short fiber: 100 parts,

[0046] Filling: 320 parts.

[0047] Among them, the thermoplastic resin is modified petroleum asphalt; the short fiber is glass fiber with a length of 5-15 mm; the filler is 50 parts of crystal fiber, 20 parts of heavy calcium carbonate, 50 parts of diatomite, and 20 parts of hollow glass microspheres .

[0048] The inner winding layer [1] and the outer winding layer [3] are composed of thermosetting composite materials, and are prepared with the following components (components by weight):

[0049] Unsaturated polyester resin: 120 parts (containing 1.5...

Embodiment 3

[0053] As shown in Figure 3, a fiber-wound composite material pipe, the pipe wall is composed of an inner winding layer [1], a middle winding layer [2], and an outer winding layer [3].

[0054] The middle winding layer [2] is a hollow structure, composed of thermoplastic composite materials, prepared using the following components (parts by weight):

[0055] Thermoplastic resin: 200 parts,

[0056] Short fiber: 120 parts,

[0057] Filling: 50 parts.

[0058] Wherein, the thermoplastic resin is unmodified petroleum asphalt, the short fiber is glass fiber with a length of 1-5 mm, and the filler is heavy calcium carbonate.

[0059] The inner winding layer [1] is composed of thermoplastic composite materials, and is prepared with the following components (parts by weight):

[0060]Thermoplastic resin: 200 parts,

[0061] Long staple and / continuous staple: 100 parts.

[0062] Among them, the thermoplastic resin is modified petroleum asphalt; the long fiber and / continuous fiber...

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Abstract

The present invention relates to a fiber-winded composite material pipe for water supply and drainage. It is characterized by that its pipe wall is divided into three layers, including internal winded layer, intermediate winded layer and external winded layer. Its intermediate winded layer is made up by using thermoplastic composite material, its internal winded layer and external winded layer are made up by using filament and / or continuous fiber reinforced thermoplastic or thermosetting composite material.

Description

Technical field: [0001] The invention relates to water supply and drainage pipes, especially a fiber-wound composite material pipe. Background technique: [0002] Because of its many advantages, plastic pipes are constantly replacing metal or other traditional material pipes. Plastic pipes have been widely used in urban water supply, urban drainage, building water supply, building drainage, hot water supply, heating, and building rainwater drainage at home and abroad. , city gas, agricultural drainage and irrigation, chemical fluid transportation and wire, cable sheathing and other fields. [0003] At present, the large-caliber plastic pipes used for urban water supply and drainage mainly include FRP sand-filled pipes, double-wall corrugated pipes, and spirally wound pipes. FRP sand pipe is made of glass fiber as reinforcement material, unsaturated resin is used as matrix material, and quartz sand is used as filling material. The inner and outer layers of the pipe wall are...

Claims

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Application Information

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IPC IPC(8): F16L9/12
Inventor 曾建祥
Owner 曾建祥
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