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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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Processing technology and characteristics of Chongqing composite well cover [2019-06-03] Composite manhole covers are usually made of comprehensive materials, of which fiber reinforced materials are the most widely used and the largest number. Fiber reinforced materials are characterized by small specific gravity, specific strength and high specific modulus. For example, there are carbon fiber and epoxy resin composites, whose specific strength and specific modulus are several times greater than those of steel and aluminum alloy, and also have excellent chemical year stability, antifriction and wear resistance, self lubrication, heat resistance, fatigue resistance, creep resistance, noise elimination, electrical insulation and other properties. -
More and more functions of composite manhole covers in Chongqing [2019-06-03] On the basis of the manhole cover, our composite manhole cover has emerged through the efforts of countless people and professional transformation. The composite well cover has the advantages that previous well covers do not have. It can be applied in all places, and has long service life, excellent quality, and no maintenance problems. The function of composite manhole cover is becoming more and more diversified, which makes its development more and more powerful. Composite manhole cover is frequently used in municipal administration and buildings. -
What are the 7 characteristics of nodular cast iron anti-theft manhole cover? [2019-06-03] 1. The chemical and physical characteristics of the new type of nodular cast iron manhole cover use QT500-7 as cast nodular cast iron, which is light in weight, high in strength, good in resistance, corrosion resistance, fatigue resistance, and suitable in cost. Compared with the gray cast iron manhole cover of the same specification and scale, it is 40%~50% lighter in weight and 40%~50% higher in strength than the old type of gray cast iron manhole cover. The old gray cast iron well cover is brittle and simple to fracture. The chemical composition and physical properties of nodular cast iron and gray cast iron are compared (see Table 1 and Table 2). From the comparison of the above chemical composition and physical property data, it can be concluded that the decisive indexes of ductile iron are much higher than that of gray cast iron in terms of tensile strength, elongation, yield strength and ultimate load indenter, and the various data of its chemical composition are much more reasonable than that of gray cast iron. -
Talking about the development prospect and trend of composite well cover [2019-06-03] With the rapid development of urban and rural construction, the demand for Chongqing composite manhole covers, the supporting facilities for new residential areas and roads, has increased sharply. However, the high cost of traditional cast iron manhole covers, serious theft, pedestrian injuries, and vehicle damage have always been a difficult problem for construction departments. -
Three precautions for stainless steel manhole cover of slow chat device [2019-06-03] With the continuous development of the city, urban road construction has also developed. In Chongqing, a new tier city where we live, some sewage well covers on the way have been gradually replaced by some stainless steel invisible well covers -
Some Correct Processes of Stainless Steel Well Cover [2019-06-03] With the development of the times, the size of urban sewage outlets is different. For example, the sewage outlets of some roads with smaller standards will be smaller -
Precautions and installation process of composite well cover [2019-06-03] With the continuous development of technology, manhole covers, as a common material for municipal administration and construction, have developed rapidly. Now, Chongqing manhole cover manufacturer will tell you the installation precautions of composite manhole covers: 1、 In order to keep the appearance of the cover beautiful and the surface pattern and writing clear, thin iron sheet or wood plate shall be used to cover the manhole cover during the construction of asphalt pavement, and the black manhole cover can also be brushed with waste oil to prevent asphalt spraying on the manhole cover -
What are the multiple uses of Chongqing composite well covers? [2019-06-03] Specific use of well cover plate: Well cover plate is widely used in municipal roads, garden facilities, residential areas, campuses, stadium pipes and other different places. Our company can also plan and manufacture well cover plates of other specifications and shapes according to special customer requirements.
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