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Selection knowledge of heavy ductile iron manhole cover -
Process Characteristics of Heavy Ductile Iron Well Cover Technology -
How to install the ductile iron manhole cover correctly? -
Performance Characteristics of Heavy Ductile Iron Well Cover -
What are the performance and manufacturing process of nodular cast iron manhole cover?
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What is the standard of nodular cast iron manhole cover· [2019-09-15] The materials used for nodular cast iron well covers are high-quality nodular cast iron, coke and special spheroidizing agent from fixed-point manufacturers. The spherical grade is controlled within the range of 1 to 2, and the fine color is close to the asphalt surface layer and can expose the concrete well ring. The old gray cast iron manhole cover is gray and dark in appearance. The concrete well circle must be exposed. The color of the asphalt surface layer is inconsistent with that of the asphalt surface layer. The flatness is difficult to control and the road is difficult to integrate. It is difficult to beautify the city. -
Development potential and advantages of composite manhole covers [2019-06-03] Introduction to Chongqing Composite Well Cover Composite well cover is a new type of well cover with high efficiency, environmental protection and low cost, which is made of unsaturated polyester resin as the primary material and limited molding technology. -
Brief Analysis of Precautions for Stainless Steel Well Cover Installation [2019-06-03] With the development of the 21st century, people's living standards are getting higher and higher, and manhole covers are often seen on roads in some cities. What should be paid attention to when installing stainless steel manhole covers? Let's follow Chongqing Well Cover Company to have a look. -
Talking about 11 advantages of nodular graphite well cover [2019-06-03] Chongqing ductile iron manhole covers, mainly engaged in the production and sale of wholesale and customization, Chongqing ductile iron pipes and accessories, Chongqing Zhonghai manhole covers of various specifications, ductile iron manhole covers, resin composite products and manhole covers, HDPE double wall corrugated pipes, HDPE reinforced winding pipes type B, hollow wall winding pipes, plastic inspection wells, PE water supply pipes, steel mesh skeleton polyethylene composite pipes -
How to improve anticorrosion performance of nodular cast iron manhole cover [2019-06-03] Cast iron manhole covers have been used for many years. It can be said that the anti-corrosion performance of cast iron manhole covers must be very good. In order to withstand such a test, his anti-corruption performance must be good. To achieve such an effect, strict treatment must be carried out. It is through asphalt coating. Before painting, pipes are preheated to speed up the adhesion of asphalt and dry it quickly, and aluminum aluminate coating. These two processes are very suitable for anti-corrosion coating. Ball mill well cover is a kind of cast iron, It is made of cast iron and spheroidized to spheroidal graphite, which can effectively improve the performance of cast iron, especially improve the plasticity and toughness of the product, and finally reach a strength higher than that of carbon steel. This is the characteristics of our spheroidal graphite manhole cover. With these characteristics, it will be able to withstand various severe tests. -
Talking about the 6 common features of composite well cover [2019-06-03] In the current market, various Chongqing composite well cover manufacturers use different materials, but they still have the same characteristics: 1. Strong anti-theft property: the manhole covers produced by Chongqing composite manhole cover manufacturers are generally made of unsaturated resin, glass fiber and other materials through special production processes. After high-temperature grinding and pressing, the materials have no recycling value, and it is very difficult to take out the reinforcement. -
What are the five advantages of polymer composite well covers [2019-06-03] 1. Before installation, the foundation of well cover shall be neat and firm, and the inner diameter, length and width shall be determined according to the size of Chongqing composite well cover. 2. When installing Chongqing composite well cover on cement pavement, attention should be paid to the concrete pouring on the masonry of the wellhead, and a concrete protective ring should be built around the wellhead for maintenance for about 10 days.
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