Network glass fiber fabric reinforced composite GRP pipe of very high molecular weight polyethylene
A technology for ultra-high molecular weight, composite pipes, applied in the field of grid glass cloth reinforced ultra-high molecular weight polyethylene FRP composite pipes, which can solve the problems of difficult bonding between polymer materials and FRP shells, and difficult adhesion of polymer materials
Inactive Publication Date: 2006-02-15
SHANGHAI INST OF TECH
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problem of polymer materials being difficult to stick, and provide a grid glass cloth reinforced super high Molecular weight polyethylene fiberglass composite pipe
[0005] This solution solves the problem of difficult bonding between the polymer material used as the lining and the FRP shell
Method used
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[0007] The specific structure and molding process of the present invention will be further described below with reference to the accompanying drawings. Such as figure 1 As shown, in the present invention, the grid glass cloth reinforced ultra-high molecular weight polyethylene FRP composite pipe is composed of an outer shell 1 and an inner lining 2, and its characteristic is that the inner lining 2 is made of grid glass cloth through hot pressing into a polymer material Formed, the shell 1 is made of glass fiber reinforced plastic, and the inner lining 2 reinforced by grid glass cloth is bonded to the inner surface of the glass fiber reinforced plastic shell 1 with epoxy resin adhesive 3 through the grid glass cloth 4 with a certain thickness exposed on its outer surface. Knot connection. In this embodiment, the thickness of the outer surface of the grid glass cloth exposed on the lining side is 0.1-0.8mm. A preferred thickness is 0.5 mm. The polymer material used in the li...
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Abstract
The present invention relates to one kind of wear resistant, anticorrosive and antiscale composite netted glass fiber fabric reinforced GRP pipe for hydraulic conveyance of coal cinder, ore sand, silt and other solid grains. The composite pipe consists of outer casing and lining, and features that the lining is formed via hot pressing netted glass fiber fabric into polymer material, the outer casing is GRP, and the lining with netted glass fiber fabric extending beyond the outer surface of the lining for certain thickness is connected to the outer casing via adhesion with epoxy resin adhesive firmly. The composite pipe has the advantages of light weight, high strength, high corrosion resistance, high wear resistance and scaling resistance.
Description
technical field [0001] The invention relates to a wear-resistant, corrosion-resistant and anti-scaling grid glass cloth reinforced ultra-high molecular weight polyethylene glass-steel composite pipeline for hydraulically transporting solid particles such as coal ash, ore sand, and silt. Background technique [0002] Thermal power plants need long-distance output of burnt coal ash. Now thermal power plants often use pipelines for hydraulic transportation of ash. The wear is very serious during transportation, especially at the elbow, so that the pipeline is often worn out and leaks Accidents and emergency repairs continue, which not only affects the safe production and operation of thermal power plants, but also increases maintenance costs, and ash and sewage often cause environmental pollution. In addition, when the pipeline transports ash with high calcium content, fouling often occurs on the inner surface of the metal pipeline, resulting in a decrease in the flow section o...
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IPC IPC(8): B29C63/00B29C70/22
Inventor 杨俭安
Owner SHANGHAI INST OF TECH