Inorganic reinforced fiberglass pipe jacking and molding process

A technology of inorganic reinforcement and glass fiber reinforced plastics, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of limited resources, high resistance, water resistance, etc., and achieve the effect of smooth inner surface, long service life and quick installation

Inactive Publication Date: 2008-01-02
贺建军
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  • Abstract
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AI Technical Summary

Problems solved by technology

Plastic pipes are easy to age, become brittle, and cost high; reinforced concrete prestressed pipes have thick walls, heavy weight, high resistance during jacking construction, and difficulty in installation and transportation; glass fiber reinforced thermosetting resin sand pipes have smooth inner and outer surfaces , The resistance is small during jacking method construction, but the main raw material of the pipe is petroleum by-products, the resources are limited, and the cost is also high; the inorganic composite materials with magnesium chloride, magnesium oxide, etc. as the main materials generally have low strength, are not resistant to water, anti-moisture, Rehalogenated and easily deformed

Method used

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  • Inorganic reinforced fiberglass pipe jacking and molding process

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Embodiment Construction

[0010] The manufacturing process of inorganic reinforced FRP jacking pipe:

[0011] Organic inner surface production: impregnate glass fiber surface felt and knitted felt with unsaturated polyester resin, wrap it on the surface of the mandrel, squeeze it with mesh cloth, and drive away air bubbles. A high-resin-content waterproof inner liner is formed, which is then wrapped with dry fiberglass cloth.

[0012] Intermediate inorganic structure layer: The inorganic materials (magnesium chloride, magnesium oxide, ferrous sulfate, calcium sulfate, calcium dihydrogen phosphate, fly ash mixed glue) are proportioned, coated on the surface layer, and scraped with a scraper Flattened, then wrapped with fiberglass cloth or reinforced with continuous fiber winding. Repeat the operation until the appropriate thickness is reached. The thickness of a single production is determined according to the size of the pipe diameter and the requirements of the pressure level and rigidity level.

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Abstract

The invention discloses an inorganic reinforced fiberglass top pipe and forming craft, which is characterized by the following: choosing fiberglass reinforced organic resin composite material as seepage control and preserve lining; using fiberglass reinforced modified inorganic material as middle forced structure layer; using fiberglass fiber reinforced organic resin as covering layer; adopting top advanced construction method; adopting metal collar and plug with rubber ring to bell and spigot joint. The inner pressure of this pipe is 1.0MPa.

Description

technical field [0001] The invention relates to a water delivery pipe and a molding process Background technique [0002] At present, the pipes used in the jacking construction method for water supply and drainage, sewage treatment, etc. mainly include glass fiber reinforced thermosetting resin sand pipes, reinforced concrete prestressed pipes, etc. Plastic pipes are easy to age, become brittle, and cost high; reinforced concrete prestressed pipes have thick walls, heavy weight, high resistance during jacking construction, and difficulty in installation and transportation; glass fiber reinforced thermosetting resin sand pipes have smooth inner and outer surfaces , The resistance is small during jacking method construction, but the main raw material of the pipe is petroleum by-products, the resources are limited, and the cost is also high; the inorganic composite materials with magnesium chloride, magnesium oxide, etc. as the main materials generally have low strength, are no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14F16L47/08B32B1/08
Inventor 贺建军
Owner 贺建军
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