Molded SMC manhole cover is one of the most popular manhole cover products in recent years.
First of all, the molded composite manhole cover is a new type of environmental protection cover. The molding composite manhole cover is a fiber reinforced thermosetting composite material made of unsaturated polyester resin by molding process. What are the advantges of molded composite manhole cover? The manhole cover produced by this method has the advantages of high polymerization degree, high desity, good impact and tensile strength, wear resistance, corrosion resistance, no corrosion and no polltution.
Why is the high temperature forming process much more advanced than the casting process? The main reason is that the internal high temperature molding process only needs a small amount of electric evergy in the operation process, which shows its excellent environmental protection and energy saving performance. Casting process not only has a great impact on the environment, but also consumes a lot of energy. Practice has proved that the high temperature forming process is more convenient and simple. As long as the temperature is set, when the set temperature is reached, the raw material can be injected. However, the casting process is not as simple as it is said, because the temperature of molten iron and the structure of SMC materials need to be controlled manually. Therefore, the requirements for operators are higher.
First of all, the molded composite manhole cover is a new type of environmental protection cover. The molding composite manhole cover is a fiber reinforced thermosetting composite material made of unsaturated polyester resin by molding process. What are the advantges of molded composite manhole cover? The manhole cover produced by this method has the advantages of high polymerization degree, high desity, good impact and tensile strength, wear resistance, corrosion resistance, no corrosion and no polltution.
Why is the high temperature forming process much more advanced than the casting process? The main reason is that the internal high temperature molding process only needs a small amount of electric evergy in the operation process, which shows its excellent environmental protection and energy saving performance. Casting process not only has a great impact on the environment, but also consumes a lot of energy. Practice has proved that the high temperature forming process is more convenient and simple. As long as the temperature is set, when the set temperature is reached, the raw material can be injected. However, the casting process is not as simple as it is said, because the temperature of molten iron and the structure of SMC materials need to be controlled manually. Therefore, the requirements for operators are higher.
The manhole covers are mostly round, and the molded SMC manhole covers are no exception. The circular design also helps to prevent irregular objects from falling, greatly improving safety. From the manhole cover products, it can be seen that the products produced by high temperature molding process are more beautiful, more three-dimensional and more exquisite, while the manhole cover made by traditional casting process is rough.
From the production process point of view, the advantages of molded SMC manhole cover can be clearly reflected, and its advantages are far more than these. The bearing grade and specification of the composite manhole cover can be determined according to the actual needs.