Double-plain wall reinforced glass steel tube and preparation process thereof

Abstract

The invention belongs to the technical field of the glass steel pipelines and specifically discloses a double-plain wall reinforced glass steel tube and a preparation process thereof. The following major technical scheme is adopted: the double-plain wall reinforced glass steel tube comprises an inner pipe layer and an outer pipe layer, the two of which are formed by winding a glass steel material, and a middle layer structure which is formed by use of a wound lightweight plate or a wound lightweight plate glass steel reinforcing rib is arranged between the inner pipe and the outer layer. The double-plain wall reinforced glass steel tube has the characteristics of reasonable structure, high strength, low weight and convenience in construction.

Description

technical field [0001] The invention belongs to the technical field of glass fiber reinforced plastic pipes, in particular to a double flat wall reinforced glass steel pipe and a preparation method thereof. Background technique [0002] FRP pipe is a new type of pipe made of resin as the matrix material, glass fiber and its products as the reinforcing material, and quartz sand as the filling material instead of metal. Compared with metal pipes, FRP pipes, especially large-diameter FRP pipes, have become a popular choice for chemical industry, water supply and drainage projects due to their excellent corrosion resistance, light weight, simple preparation process, convenient installation, short construction period and low comprehensive investment. The best choice for pipelines. The production method is to pre-soak the glass fiber in the resin solution, apply a certain tension, wind it on the mold according to the process requirements, and then demould it. [0003] Due to ...

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Problems solved by technology

[0003] For large-diameter glass steel pipes, due to the need for sufficient compressive strength, the pipe wall that constitutes the glass steel pipe must meet sufficient thickness. There are the following defects in the preparation and performance of glass steel pipes with caliber: first, not only the heavy weight makes installation difficult, but also wastes materials; second, in order to reduce costs and improve rigidity during preparation, adding Wrap the quartz sand layer; in this process, it is very easy to bring air bubbles into the sand layer, thereby forming irregular cavities in the formed pipe wall that greatly affect the compactness, smoothness and elastic modulus of the product; in addition, during the sand adding process , there is also the problem that the rigidity of the pipe wall is difficult to meet the requirements due to the uneven mixing of quartz sand and resin to form a sand layer with uneven density.

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