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What are the advantages of composite manhole covers?
Source: Banan District Jianguo Building Materials Business Department Release time: 19:00:32, June 3, 2019

compound material The well cover is also called resin well cover, mainly It is made of carbon fiber and epoxy resin composite material. What are the characteristics and advantages of this resin composite manhole cover?

characteristic: Among the resin well cover materials, fiber reinforced materials are the most widely used and used. It is characterized by small specific gravity, large specific strength and specific modulus.

For example, carbon fiber and epoxy resin composite materials, whose specific strength and specific modulus are several times greater than steel and aluminum alloy, also have excellent chemical stability, antifriction and wear resistance, self-lubricating, heat resistance, fatigue resistance, creep resistance, noise elimination, electrical insulation and other properties.

The composite of graphite fiber and resin can obtain a material with an expansion coefficient almost equal to zero.

advantage: Another characteristic of fiber reinforced materials is anisotropy, so the arrangement of fibers can be designed according to the strength requirements of different parts of the parts. Carbon fiber reinforced carbon, graphite fiber reinforced carbon or graphite fiber reinforced graphite constitute ablation resistant materials, which have been used in spacecraft, rocket missiles and atomic energy reactors.

The application of non-metallic materials is a major feature of resin well covers. Because non-metallic materials have no reuse value, they can be said to be real anti-theft manhole covers.