Composite metal net reinforced superhigh molecule weight polyethylene GRP pipe
An ultra-high molecular weight and metal wire mesh technology is applied in the field of metal wire mesh reinforced ultra-high molecular weight polyethylene glass fiber reinforced plastic composite pipes, which can solve the problems of difficult adhesion of polymer materials and difficult adhesion of polymer materials and glass fiber reinforced plastic shells.
Inactive Publication Date: 2004-09-08
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 kind of metal mesh reinforced ultra-high molecular weight with good wear resistance, good corrosion resistance, anti-fouling, and more economical. 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. like figure 1 As shown, in the present invention, the wire mesh 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 formed by hot pressing the wire mesh into the polymer material The shell 1 is made of glass fiber reinforced plastic, and the inner lining 2 reinforced by wire mesh is bonded to the inner surface of the glass fiber reinforced plastic shell 1 with epoxy resin adhesive 3 through the wire mesh 4 exposed on its outer surface with a certain thickness. The wire mesh is steel wire mesh, copper wire mesh or aluminum wire mesh. In this embodiment, the metal wire mesh is a steel wire mesh, and the thickness of the outer surface of the steel wire mesh exposed on one side of the lining is 0.1-0.8 mm....
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Abstract
The present invention is one kind of composite metal net reinforced superhigh molecular weight polyethylene GRP pipe for hydraulic conveying of coal cinder, mineral sand, silt and other solid grains. The composite pipe consists of outer casing and inner lining, and features the inner lining formed via hot pressing metal net into polymer material, the outer casing of GRP, and the firm adhesion of the inner lining with metal net exposed in outer surface to the inner surface of the GRP outer casing via epoxy resin adhesive. The composite pipe of the present invention has the advantages of light weight, high strength and anticorrosion, like GRP pipe, and the lining with excellent characteristic of being wear resistant, anticorrosive and antiscaling.
Description
technical field [0001] The invention relates to a wear-resistant, corrosion-resistant and anti-scaling wire mesh reinforced ultra-high molecular weight polyethylene glass-steel composite pipe for hydraulically conveying 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 of the pipeline...
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IPC IPC(8): F16L9/147
Inventor 杨俭安
Owner SHANGHAI INST OF TECH