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SMC Resin Strong Anti-Theft Performance Manhole Cover

The resin is made of resin and various additives. The product is delicate and beautiful, and can be colored freely. The bearing capacity is the strongest, and its cast iron is almost the same. But the price is the same as that of the national standard cast iron manhole cover, which is far higher than the other two. The steel fiber concrete manhole cover made of nonmetal manhole cover is an improved product of the original reinforced concrete manhole cover.
Glass fiber reinforced plastic manhole cover is made of unsaturated polyester resin as raw material, glass fiber as reinforcement material and certain filler. Due to different technology, structural materials and reinforcement materials, the performance of manhole cover products is also very different. The domestic production of FRP manhole cover is generally as follows:
(1)Resin transfer molding process. Due to the high resin content, the manhole cover is not suitable for use on the carriageway due to the insufficient bearing capacity
(2) Hand paste manufacturing process. Production efficiency is slow, not suitable for large-scale production, and there is no competitive advantage;
composite manhole cover
Using unsaturated resin as matrix material, 30-50mm short fiber as reinforcement material, SMC / BMC (sheet molding plastic / quality plastic) for manhole cover is used to prefabricate calcium carbonate. SMC / BMC mould well cover is to press the forming material into the reinforcement under certain temperature and pressure.
The resin manhole cover is made of unsaturated polyester resin as the matrix material, glass fiber as the reinforcement material, supplemented by certain rigid materials. The structure is made of pot bottom structure, and the bottom tensile strength material is evenly distributed. The material is divided into two layers, the upper part is wear-resistant and anti-aging material, and the service life of the product is long. The continuous glass fiber reinforcement is adopted at the bottom, so that the manhole cover has enough carrying capacity without any reinforcement. It is one of several well covers with good comprehensive properties.
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