Glass reinforced plastic fiber pipe and manufacturing method thereof

Abstract

The invention provides a glass reinforced plastic fiber pipe and a manufacturing method of the glass reinforced plastic fiber pipe. The manufacturing method includes the following steps that a liner layer, an inner reinforcement layer and an outer reinforcement layer are placed in preset positions in a vibratory compaction mold respectively, and an annular cavity is formed between the inner reinforcement layer and the outer reinforcement layer; mortar is injected to the annular cavity, and the vibratory compaction mold is vibrated. According to the glass reinforced plastic fiber pipe and the manufacturing method of the glass reinforced plastic fiber pipe, the mortar is injected into the annular cavity between the inner reinforcement layer and the outer reinforcement layer, moreover, a sand inclusion layer is formed through vibration, wherein the thickness of the sand inclusion layer and the granularity of gravel material in the mortar in use are not limited, and the manufactured sand inclusion layer is compact and can improve rigidity and strength of the sand inclusion glass reinforced plastic fiber pipe.

Description

technical field [0001] The invention relates to municipal pipeline engineering, in particular to a method for manufacturing a fiberglass fiber pipe and the fiberglass fiber pipe. Background technique [0002] At present, there are mainly three molding processes for glass fiber reinforced plastic sand-filled pipes (including pipe jacking) produced internationally: fixed-length winding process, continuous winding process and centrifugal casting process. [0003] The fixed-length winding process is a production method that uses spiral winding and / or hoop winding technology to manufacture pipes layer by layer within the length of the pipe mold on a pipe mold with a certain length. This production method uses wet sand inclusion The sand inclusion process is carried out, that is, the pre-mixed quartz sand is manufactured by low hoop winding of yarn / cloth pocket. [0004] The centrifugal casting process is a production method that uses a feeder to cast glass fiber, resin, quartz s...

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Problems solved by technology

[0007] The invention provides a method for manufacturing a fiberglass fiber pipe and a fiberglass fiber pipe, which are used to solve the problem that the sand layer of the fiberglass fiber pipe in the prior art is not dense enough, and the thickness of the quartz sand grains and the interlayer in the sand layer is limited, and the axial compression of the pipeline Problems such as low strength

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