What composite material is used for composite manhole covers?
Composite covers are generally SMC (unsaturated polyester resin fiber reinforced "sheet" mold plastic) or BMC (unsaturated polyester resin fiber reinforced "group" mold plastic) plus steel as raw material. In quality, SMC produced composite covers better than BMC plus steel, higher load.
The composite manhole cover is made of unsaturated resin and calcium powder as base material, glass fiber as reinforcing material, and thread steel as skeleton. Patented technology, high temperature and pressure molding.
Composite manhole cover characteristics:The composite manhole cover is reinforced with mesh reinforcement, the key force part is specially strengthened, and the pressure can be quickly dispersed in order to ensure the safety of the vehicle when the inevitable external force impact occurs.No metal, stone plastic well covers and concrete covers, steel skeleton is not enough to cover the total weight of 1/10. Not much of a steal. And because of the high strength of the manhole cover, it is extremely difficult to remove the small steel bar from the well cover. Therefore, thieves do not steal.The inorganic magnesium composite covers high strength, low price, beautiful appearance. The utility model can be painted at will, convenient for installation, maintenance and identification, and completely solves the problem of anti-theft because of no recycling value. Our country will gradually change the composite manhole cover in the next three to five years, and the market potential is enormousInorganic composite manhole cover. Honi is made of a new type of high strength inorganic composite material and glass fiber. Belongs to mid-range manhole cover products.
The composite manhole cover adopts high temperature and high pressure molding technology with high degree of polymerization, large density, good impact resistance and tensile strength, and has the advantages of wear resistance, corrosion resistance, no rust, no pollution, no maintenance, etc..
The composite well covers adopts unsaturated polyester resin as matrix and fiber reinforced thermosetting composite material, also called group molding plastics (DMC). It is made of pressing molding technology, and it is a new type of environmental protection type electric power cover plate.
