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Why can the composite well cover be widely used [2023-03-27] Why can composite well covers be widely used? Fiber reinforced materials are widely used in composites. For example, the specific strength and specific modulus of carbon fiber and epoxy resin composites are several times that of steel and aluminum alloys. They also have excellent chemical stability, antifriction and wear resistance, self lubrication, heat resistance, fatigue resistance, creep resistance, noise elimination and electrical insulation properties. The materials with almost zero expansion coefficient can be obtained by composite of graphite fiber and resin. Another characteristic of fiber reinforced materials is anisotropy, so the arrangement of fibers can be designed according to the strength of different parts. The aluminum matrix composites reinforced with carbon fiber and silicon carbide fiber can still maintain sufficient strength at 500 ℃. -
How to ensure the quality of composite well cover [2023-03-24] Composite well cover is a kind of well cover, so how to ensure the quality of composite well cover? 1、 The bearing capacity of the composite well cover is not less than 180KN, the specification and characteristics of the composite well cover are not less than 250KN, and the allowable residual deformation is (1/500) * D. The bearing capacity of the composite well cover is not less than 90KN, the damage bearing capacity is not less than 130KN, and the allowable residual deformation is (1/500) * D. -
What are the advantages of composite manhole covers [2023-03-22] What are the advantages of composite manhole covers? 1、 Structural innovation The polymer anti-theft art well cover adopts the pot bottom structure, which makes the stress area ten to dozens of times larger than the flat plate ribbed. The whole well cover structure layer is paved with continuous glass fiber, and the stress is uniform, so that the product has stronger structural bearing capacity. -
Talking about the forming process of compound well cover [2023-03-17] The forming process of composite well cover is briefly described. Composite manhole cover is one of the popular manhole cover products in recent years. Different from the traditional ductile iron manhole cover, it is made of polymer material, so it chooses the high-temperature molding process. Composite well cover is a new type of environmental protection well cover. The composite well cover is a chemical fiber improved thermosetting plastic polymer material made of unsaturated fatty alkyd resin. The production manhole cover has the advantages of high glass temperature, high relative density, impact resistance, good compressive strength, wear resistance, corrosion resistance, non corrosion, non pollution, etc. The key reason why the high-temperature forming process is superior to the forging process is that the internal high-temperature forming process only shows a small amount of electromagnetic environmental protection energy. -
Solution to Cast Iron Well Cover Wear [2023-03-13] With the rapid development of urban planning and construction, cast iron manhole covers have been widely used in various construction projects, and their advantages have been recognized by everyone. For better use, let's take a look at the solution after the wear of cast iron manhole covers. -
Cleaning method of cast iron well cover in use [2023-03-10] With the rapid development of urban planning and construction, cast iron manhole covers have been widely used in various engineering construction, and their many advantages have also been recognized by people. Let's take a look at the cleaning method of cast iron manhole covers in use. -
Precautions for cleaning composite well cover [2023-03-06] As the application of composite well cover is more and more common, appropriate operation methods will be selected during construction, and its advantages will be more and more in use. Let's take a look at the precautions for cleaning the composite well cover. -
Precautions for transportation of cast iron manhole cover [2023-03-03] Cast iron manhole covers are used more and more widely. Only by selecting appropriate operation methods in the whole construction process, can we achieve a stronger use effect. For better application, let's take a look at the precautions for the transportation of cast iron manhole covers. -
Key points for attention during installation of composite well cover [2023-02-24] Precautions during installation of composite well cover At present, composite well covers are widely used in many fields, with the advantages of long service life, higher requirements for product performance and higher requirements for construction technology. Let's take a look at the precautions during the installation of the composite well cover. -
Common problems in the use of cast iron well covers [2023-02-17] With the use of nodular cast iron manhole covers becoming more and more common, their quality is also getting higher and higher. Because of its characteristics and advantages, it is widely used. In order to better apply it, let's look at the common problems in the use of nodular cast iron manhole covers. -
Manufacturing and installation method of composite well cover [2023-02-10] With the acceleration of urban construction and the improvement of infrastructure, more and more facilities and pipelines are transferred to the ground due to the narrow ground space. The market demand for manhole covers is growing, not only that, but also people's requirements for performance are becoming increasingly stringent. Because of the price of materials and the loss of manhole covers. Composite well covers gradually occupy the mainstream of the market. Today, let's take a look at the manufacturing and installation methods of composite well covers.. -
Importance of the Shape of Ductile Iron Well Cover [2023-02-03] Importance of the Shape of Ductile Iron Well Cover The manhole cover is familiar to everyone. Now we usually see nodular cast iron manhole covers, which are basically circular. Then the question arises, why is the shape of the manhole cover round and other shapes bad? Let's professionals introduce this problem in detail.
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