1. The Composite Manhole Cover is made of unsaturated polyester resin as the matrix fiber-reinforced thermosetting composite material, also known as agglomerate molding compound (DMC), which is made by pressing forming technology and is a new type of environmentally friendly cover plate. The composite manhole cover adopts high temperature and high-pressure one-time compression molding technology, which has a high polymerization degree, high density, good impact resistance, and tensile strength, and has the advantages of wear resistance, corrosion resistance, no rust, no pollution, and no maintenance.
2. FRP (FRP) is also known as GFRP, that is, fiber-reinforced plastics generally refers to the use of glass fiber reinforced unsaturated polyester, epoxy resin, and phenolic resin matrix. A reinforced plastic made of glass fiber or its products as a reinforcing material, called glass fiber reinforced plastic, or glass fiber reinforced plastic, is distinguished from tempered glass. Because of the variety of resins used, it is called polyester fiberglass, epoxy glass-reinforced plastic, and phenolic glass reinforced plastic. Light and hard, non-conductive, stable performance. High mechanical strength, low recycling, corrosion resistance. Machine parts and automobiles, ship casings, etc. can be manufactured instead of steel.
Composite manhole covers are usually made of composite materials, and several fiber reinforcement materials are widely used. Fiber-reinforced materials are characterized by small specific gravity, specific strength and specific modulus. The composite manhole cover material has a flexible molding process, and the structure and characteristics of the composite material have strong plasticity and designability. In general, the composite manhole cover is manufactured by a single molding method using a special mold to improve the structural strength.
Resin Manhole Cover suppliers can improve the performance of different parts of the building through fiber types and different layouts. By adjusting the composition, composition, and arrangement of the components of the composite material, the components can be subjected to different forces at different positions, and a composite multifunctional product having the contradiction properties of rigidity, toughness, and plasticity can be produced. These are not available in the cast iron manhole cover. The underground environment of the marine climate is more harmful to corrosion. In addition, the stray current corrosion of the subway project greatly reduces the service life of the metal material.
In the application technology of composite evacuation platforms and cable supports, the “designability” of composite properties plays a large role. However, the corrosion resistance of metal materials used in the original has been difficult to solve, such as various metal cable brackets and components that are subject to humidity, acid rain, salt spray, and other corrosion.
Contact: Elaine Yang
Add: No125 Liuquan Road Gaoxin District Zibo City,Shandong Province,China