Glass fiber reinforced plastic cable channel cover plate and production method thereof

Abstract

The invention relates to a glass fiber reinforced plastic cable channel cover plate and a production method thereof. The cover plate is a rectangular hollow belly structure, longitudinal stiffening ribs are arranged in the hollow belly of the cover plate and the upper surface of the cover plate is provided with strip-shaped antiskid grains; the invention comprises the following raw materials: unsaturated polyester resin, curing agent, packing, polyvinyl alcohol solution, pigment, fiberglass roving and fiberglass felt; the invention comprises the following steps: (1) arranging a tooling equipment on an extrusion molding machine; (2) mixing and pouring the raw materials in a resin tank; and (3) inducing the fiberglass roving and the fiberglass felt through immersion, a performing device, a forming device, curing and cutting. The cover plate has high strength, smooth surface, neat and beautiful appearance, corrosion resistance of alkali, acid, petrol and the like, aging resistance, long service life without pulverization, discoloration, crack, deformation and the like. The invention ensures the safe operation of cables and prolongs the service life of the cables.

Description

technical field [0001] The invention relates to a glass fiber reinforced plastic cable trench cover plate and a production method thereof. Background technique [0002] At present, the cable trench covers used in power plants, transmission and substations, subways and traffic tunnels are generally made of cement reinforced concrete, and are made of angle iron frames around them. In recent years, it has begun to try out cover plates made of inorganic composite materials. The cable trench cover made of cement and reinforced concrete must be made thick in order to ensure a certain bearing capacity, so it is heavy and inconvenient to move, and it is not conducive to the maintenance and repair of the cable trench; and the surface of the cover is rough and uneven. The stitching gap is large; at the same time, the material is brittle, the impact resistance is poor, and it is easy to miss corners. Although the inorganic composite cover plate overcomes most of the defects of the ce...

AI Technical Summary

Problems solved by technology

The cable trench cover made of cement and reinforced concrete must be made thick in order to ensure a certain bearing capacity, so it is heavy and inconvenient to move, and it is not conducive to the maintenance and repair of the cable trench; and the surface of the cover is rough and uneven. The splicing gap is large; at the same time, the material is brittle, the impact resistance is poor, and it is easy to miss corners

Although the inorganic composite cover plate overcomes most of the defects of the cement cover plate, it not only takes up to three months to complete the curing time, resulting in a long production cycle; but also the bearing capacity is not strong; The ends are warped, badly deformed, and need to be replaced

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