Glass fiber reinforced plastic pipe and manufacturing method thereof

Abstract

The invention relates to a glass fiber reinforced plastic pipe and a manufacturing method thereof. The glass fiber reinforced plastic pipe sequentially comprises a lining layer, a structural layer and a protective layer from inside to outside; the lining layer is formed by compounding a polytetrafluoroethylene film with the thickness of 0.1-0.15 mm and lining slurry; the structural layer is formed by compounding glass fiber cloth with the thickness of 0.2-0.3 mm and structural slurry; and the protective layer is formed by compounding 100# aramid fiber untwisted plain cloth with the thickness of 0.1-0.15 mm and protective slurry. Each layer of the glass fiber reinforced plastic pipe is formed by compounding the corresponding fiber cloth and the slurry respectively and a weak area at the end part caused by spiral winding is avoided; the cutting amount of the two ends of the pipe is controllable and small, and the waste of materials and the generation of industrial garbage are reduced; and the layers are connected through a resin curing forming process, the interface connection is firm, the integral strength of the glass fiber reinforced plastic pipe is high, and the lining and the protective layer have corrosion resistance.

Description

Technical field [0001] The invention relates to the technical field of glass steel pipe processing and manufacturing, in particular to a glass steel pipe and a manufacturing method thereof. Background technique [0002] Glass fiber reinforced plastic, namely glass fiber reinforced plastic, is also called glass fiber reinforced plastic sand pipe. According to GB / T21238-2007, glass fiber reinforced plastic sand-filled pipe refers to the use of glass fiber and its products as reinforcing materials, unsaturated polyester resin as the matrix material, and inorganic non-metallic particles such as quartz sand and calcium carbonate as fillers , The use of fixed-length winding process, centrifugal casting process, continuous winding process to make pipes. [0003] Among them, the fixed-length winding process is a production method that uses spiral winding and / or hoop winding processes to manufacture pipes layer by layer along the length of the pipe mold on a pipe mold with a certain length...

AI Technical Summary

Problems solved by technology

The threads at the head and tail are produced when the glass fiber is wound to the head and tail sections of the mandrel. After the glass fiber pipe is formed, the thread transition area at both ends is the weak area of ​​the pipe damage, which often leads to the failure of the pipe. In order to ensure For product performance, it is often necessary to cut off the long weak areas at both ends of the pipe, resulting in a large amount of material waste and industrial waste, increasing processing and cost

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