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Production skills of FRP grating plate
PUBTIME:
2025-02-24 10:02:34
There are three main types of glass fiber reinforced plastic grating production processes: reciprocating fiber winding process, continuous fiber winding process and centrifugal casting process.
There are three main types of glass fiber reinforced plastic grating production processes: reciprocating fiber winding process, continuous fiber winding process and centrifugal casting process.
1. Reciprocating fiber winding process (belonging to the fixed-length method): In this process, the dipping tank reciprocates with the rotating mandrel, and the long fiber glass filament is auxiliary placed relative to the mandrel axis at a certain oblique angle. The auxiliary angle (i.e. winding angle) is controlled by the ratio of the moving speed of the dipping tank to the rotating speed of the mandrel, and the translational movement of the dipping tank is controlled by a computerized machine-electricity. The number of winding layers is gradually increased until the designed wall thickness is reached. After winding is completed, the resin in the product is basically cured. After curing, the core mold is removed from the glass steel pipe. After curing, the core mold is removed from the glass steel pipe.
2. Continuous fiber winding process (belonging to continuous method): This process is that the pipe passes through a feeding station for supplying resin prepreg roving, chopped glass fiber and resin sand mixture, and the pipe is made by the continuous advancement of the mandrel.
3. Centrifugal casting process (belonging to fixed-length method): In this process, cut glass fiber reinforced materials and sand are fed into a steel mold fixed on a bearing, and unsaturated resin with catalyst is injected into one end of the steel mold to impregnate the reinforced materials. Under the action of centrifugal force, the resin displaces the air in the fibers and fillers, thus making a dense composite material without pores. Due to the action of centrifugal force, a smooth, bright and resin-rich inner surface layer is formed on the inner wall of the pipe. The pipe made by this method is also called glass fiber reinforced plastic sand pipe.
At present, there are many manufacturers who use reciprocating fiber winding process to make pipes in the world, compared with the other two production processes. One of the reasons is that the glass steel pipes made by reciprocating fiber winding process have wider applications and better applicability.
Polyester grating plate has the advantages of light weight, high strength, corrosion resistance, flame retardancy, firmness, non-slip, non-magnetic insulation, beautiful and diverse colors, easy cleaning and convenient installation. Widely used in petrochemical, light metallurgy, food brewing, energy and electricity, sewage treatment and other industries, it is an ideal replacement product of traditional metal grille.
Widely used in petroleum, chemical industry, electric power, marine exploration, electroplating, shipping, water and wastewater treatment, paper-making, wine-making, pharmaceutical and other industries, such as working platforms, equipment platforms, stair treads, Hao ditch cover plate, bridge decks, packing supports, etc., it is an ideal load-bearing component in corrosive environment. Features: corrosion resistance, flame retardant, light weight, high strength, aging resistance, design, safety and anti-slip, high performance.
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