The main manufacturing components of GRP bridge are unsaturated polyester resin, epoxy resin, glass fiber untwisted roving, glass fiber felt, and continuous glass fiber yarn. Next, Shandong bridge manufacturer will talk about the molding process and thickness specification of GRP cable bridge:
The forming process of FRP bridge includes:
Pultrusion glass fiber reinforced plastic bridge, molding glass fiber reinforced plastic bridge, composite glass fiber reinforced plastic bridge, hand lay-up glass fiber reinforced plastic bridge.
It has high strength, good insulation performance, light weight, reasonable structure, long service life, simple construction, flexible wiring and other characteristics, and has excellent chemical corrosion resistance, fire resistance, flame resistance and sufficient mechanical strength. It is widely used in cable laying places in petroleum, chemical, metallurgical, electrical and other departments.
The thickness specification of GRP cable tray is as follows:
When the width of fiberglass cable tray is less than 150mm, the small thickness of fiberglass cable tray plate shall reach 3.0mm
The small thickness of the plate of 150 mm wide~300 mm wide GRP cable tray shall reach 3.5 mm
The small thickness of the plate of the glass fiber reinforced plastic bridge with the width of 300mm~500mm shall reach 4.0mm
The small thickness of the plate of the glass fiber reinforced plastic bridge with the width of 500mm~800mm should reach 4.5mm
When the width of the fiberglass cable tray is greater than 800mm, the thickness of the small plate of the fiberglass cable tray shall reach 5.0mm
Note: The thickness of its connecting plate shall be selected at least according to the thickness of the side plate of the tray and ladder, or one grade of thickness can be selected. The thickness of the cover plate can be selected as a lower level according to the thickness of the tray and ladder. For GRP cable tray with width W ≥ 400, the bottom thickness is allowed to be lower than the thickness of tray and ladder side plate, but the cross bar must be added, and the center distance of the cross bar should not be greater than 400mm. The special structure type bridge is adopted, and the thickness of each part is allowed to be lower than that in this table, but the safety load (SWL) needs to meet the standard in 4.3.1 of Fiberglass Reinforced Plastic Cable Bridge NB/T10287-2019.
The relevant content of the molding process and thickness specification of the fiberglass cable tray will be explained here. If you have any doubts or questions about this, please come to our website http://www.yeeones.com Consult!