DSD Composite Materials Co., Ltd.

What are the materials of the composite manhole cover?

Composite manhole cover is only a large category, generally made of composite materials called composite manhole cover, as everyone knows, composite materials are also divided into many kinds, some of the differences will also affect the quality of the manhole cover. Today, we would like introduce you how to choose the material of the composite manhole cover, and will also briefly talk about what the composite materials are.

It is important to know that the matrix material of composite materials can be divided into two categories: metal and non-metal. Metal matrix commonly used aluminum, magnesium, copper, titanium and their alloys. The non-metallic matrix mainly includes synthetic resin, rubber, ceramics, graphite, carbon and so on. The main reinforcement materials are glass fiber, carbon fiber, boron fiber, aramid fiber, silicon carbide fiber, asbestos fiber, whisker, metal.

And we often say that the composite manhole cover is the use of unsaturated polyester resin as the matrix of fiber reinforced thermosetting composite material, also known as the group molding plastic, is a new type of environmental protection manhole cover products. It adopts high temperature and high pressure one-time molding technology, high polymerization degree, high density, good impact resistance and tensile strength, with wear resistance, corrosion resistance, no rust, no pollution, maintenance-free and other advantages.

Therefore, in how to choose the material of the composite manhole cover, you can ask what material is made of in advance, and then choose the right manhole cover products according to the actual place to be used. Think about whether the characteristics of the composite manhole cover match their requirements.

Usually, the interior of the composite manhole cover is reinforced with mesh steel bars, and the key stress part is specially strengthened, which can quickly disperse the pressure to ensure the safety of the vehicle when the inevitable external impact occurs. And do not contain metal, stone plastic manhole cover and concrete manhole cover steel skeleton is less than 1/10 of the total weight of the manhole cover. Not much of a pilferage. Regarding the inorganic magnesite composite manhole cover, this material has high strength, low price and beautiful appearance. Composite material manhole covers can generally choose different colors, in terms of installation and maintenance are relatively simple. There is also an inorganic synthetic composite manhole cover, which uses a new type of high-strength inorganic synthetic material and glass fiber joint production, belongs to the middle range manhole cover products, the price will be slightly higher.