High-strength fiber pultrusion pipeline

A high-strength fiber and pipe technology, applied in the direction of layered products, chemical instruments and methods, glass/slag layered products, etc., can solve the problems of slow production speed, high production cost and low production efficiency of fiber braided and pultruded pipes problems, achieve high production efficiency, ensure performance, and increase production efficiency

Pending Publication Date: 2019-09-17
江苏华盟新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, because the existing fiber braided and pultruded pipes use internal and external braiding, the production equipment needs to be combined with a braiding machine, and there are multiple wire reels on the braiding machine. Out-of-line state; and its production speed is slow, the output per minute is constant at 30CM, and its production efficiency is low
Makes fiber braided pultruded pipes with inner and outer braids very expensive to produce

Method used

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  • High-strength fiber pultrusion pipeline
  • High-strength fiber pultrusion pipeline
  • High-strength fiber pultrusion pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-2 As shown, a high-strength fiber pultruded pipe is composed of fibers impregnated with a thermosetting matrix; it includes an integral fiber layer 1 with a ring-shaped cross section. In this embodiment, the integral fiber layer 1 is warp and weft glass fiber cloth 11 A plurality of radially distributed fiber filaments 2 are arranged around the outer side of the warp and weft fiberglass cloth 11; the radially distributed fiber filaments 2 are evenly distributed and cover the outer side of the warp and weft fiberglass cloth 11. The outer sides of the radial fiber filaments 2 are respectively provided with wrapping layers, and in the wrapping layers, in any section of 8 mm taken along the radial direction, the number of glass fibers wrapped therein is more than one and a half turns. The outer side of the winding layer is provided with a reinforcing layer 4, and the reinforcing layer of this embodiment adopts the warp and latitude glass fiber cloth 41 wra...

Embodiment 2

[0038] Such as Figure 3-4 As shown, a high-strength fiber pultrusion pipe is composed of fibers impregnated with a thermosetting matrix; it includes an integral fiber layer 1 with a ring-shaped cross section. In this embodiment, the integral fiber layer 1 is a weft glass fiber cloth 11, Overlapping seams are arranged at the junctions of the warp and weft fiberglass cloths 11, and the width of the seams is more than one-tenth of the perimeter of the pultruded pipe. A plurality of radially distributed fiber filaments 2 are arranged around the outer side of the warp and weft fiberglass cloth 11; the radially distributed fiber filaments 2 are evenly distributed and cover the outer side of the warp and weft fiberglass cloth 11. The outer sides of the radial fiber filaments 2 are respectively provided with wrapping layers, and in the wrapping layers, in any section of 8 mm taken along the radial direction, the number of glass fibers wrapped therein is more than one and a half turns...

Embodiment 3

[0043] Such as Figure 5-6 As shown, a high-strength fiber pultrusion pipe is composed of fibers impregnated with a thermosetting matrix; it includes a fiber integral layer 1 with a ring-shaped cross section. In this embodiment, the fiber integral layer 1 adopts a braided fiber inner layer 12, The braided fiber inner layer 12 includes glass fibers E121 and glass fibers F122 woven in the radial direction. A plurality of radially distributed fiber filaments 2 are arranged around the outer side of the braided fiber inner layer 12 ; the radially distributed fiber filaments 2 are evenly distributed and cover the outer side of the braided fiber inner layer 12 . The outer sides of the radial fiber filaments 2 are respectively provided with wrapping layers, and in the wrapping layers, in any section of 8 mm taken along the radial direction, the number of glass fibers wrapped therein is more than one and a half turns. The outer side of the wrapping layer is provided with a reinforcing...

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Abstract

The invention discloses a high-strength fiber pultrusion pipeline. The high-strength fiber pultrusion pipeline is prepared from a dip dyeing thermosetting base body; the dip dyeing thermosetting base body comprises a fiber integral body layer with a circular cross section; a plurality of radially-distributed fiber filaments are arranged on the external side of the fiber integral body layer; the external sides of the radially-distributed fiber filaments are provided with a twining layer; the external side of the twining layer is provided with a strengthening layer; the twining layer comprises a glass fiber layer used for forward twining and a glass fiber layer used for backward twining. The tearing resistance and the shock resistance of the high-strength fiber pultrusion pipeline reaches industry required standard values. According to the high-strength fiber pultrusion pipeline, the performance indexes of the high-strength fiber pultrusion pipeline are ensured to reach the standards, and pultrusion pipeline production efficiency is increased, and production cost is reduced at the same time.

Description

technical field [0001] The invention relates to the technical field of pultruded pipes, in particular to a high-strength fiber pultruded pipe. Background technique [0002] Existing fiber braided pultrusion pipes are generally cylindrical or rectangular pipes with a smooth surface and a multi-layer fiber structure. The inner and outer surface layers are covered by fiber braids, and there are multiple longitudinal or circumferential distributions fiber layer. When fiber braided pultrusion pipes need performance testing, a section of 8 mm pipes will be randomly cut along its radial direction, and its performance indicators will be tested. It is necessary to ensure that the following six indicators reach the standard values ​​specified by the industry: 1. Tensile Strength: ≥200MPa; 2. Tensile strength after immersion in water: ≥170MPa; 3. Barcol hardness: ≥38; 4. Ring stiffness (5%): ≥25MPa; 5. Bending load thermal deformation temperature: ≥160MPa; 6. Dropping weight impact t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B5/02B32B5/26B32B17/02B32B17/12
CPCB32B1/08B32B5/02B32B5/26B32B2262/101
Inventor 李义宝吴如将
Owner 江苏华盟新型材料科技有限公司
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