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Why Is Composite Manhole Cover Also Called Anti-Theft Manhole Cover

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Composite manhole cover is also called resin manhole cover, polymer manhole cover, anti-theft manhole cover and so on.
It use unsaturated resin as the base material and long glass fiber reinforced resin manhole covers. Because the structure adopts the bottom structure of the pot, the data is evenly stressed, and continuous fiber reinforcement is applied, and no reinforcement is required. The materials are all composite materials. , And then molded once at high temperature.
1. Strong anti-theft performance: Resin composite material manhole cover is made of unsaturated resin, glass fiber and other materials and reinforced skeleton composited by special production process. After high temperature grinding and pressing, the material has no use value, and it is very difficult to remove the steel bar (rebar cost) (Beyond the value of steel), so it has the function of active anti-theft.
2. Large bearing capacity: the bottom adopts a special pan-bottom structure, which increases the load area by dozens or even dozens of times. The continuous reinforcing fiber yarn used guarantees that the fiber yarn and the glass fiber cloth are integrated into one material, so that the product has sufficient bearing capacity.
3. Long service life: through the use of high-performance resin, glass fiber and special production process formula, to ensure the running-in of the resin in glass fiber, greatly enhance the adhesion between the two, so that the material under the action of cyclic loading, not Internal damage occurs, which guarantees the service life of the product and the same superiority of other resin composite manhole covers. Eliminate the disadvantages of poor adhesion.
4. Beautiful and practical, high-grade: According to customer needs, complex LOGO and a variety of colors can be made on the surface of the same well cover personalized design, making the pattern delicate, bright and clear. According to customer requirements, we can make all kinds of imitation stone surfaces and colors the same as various stone pavements.
5. High temperature / low temperature resistance, good insulation performance and strong corrosion resistance: the product is corrosion-resistant and has no metal additives, which has a significant insulation effect. Can be used in complex, changeable, harsh, and demanding places. The product has been tested by relevant testing agencies and has obvious resistance to acid and alkali and corrosion.
6.Environmental protection, non-slip, low noise: This product does not slip, no harsh noise and anti-interference phenomenon after the car is rolled. At the same time, due to the light weight of the product and the tight closure of the cover and seat, it overcomes the problems of "jumping, rocking, ringing, and shifting" of other inspection manhole covers.
Resin composite manhole cover is prominently made of polymer composite material, without any recycling value. After the popularization of resin manhole covers, the problem of urban black holes caused by theft of manhole covers will be solved, so composite manhole covers are also called anti-theft manhole covers.
This resin composite manhole cover is made of glass fiber and resin as the basic materials and a curing agent as the auxiliary material. Its weight is two-thirds lighter than cast iron manhole covers, and its service life is more than 20 years, which is twice that of cast iron manhole covers, and the price is only 80% of that of cast iron manhole covers. At the same time, this manhole cover also has the characteristics of insulation, no noise, corrosion resistance, high and low temperature resistance.
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