Chongqing Drainage Pipe Cast Iron Drainage Pipe Manufacturer 420mm Bridge Drainage Pipe in Mass Production

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　　Chongqing Drainage Pipe Cast Iron Drainage Pipe Manufacturer 420mm Bridge Drainage Pipe in Mass Production

　　Cast iron drainage pipes are mainly used for drainage in railway bridges. Cast iron pipes have good wear resistance and corrosion resistance, and due to their long service life, the cost of support and hanger, handling, installation, and operation is reduced. The engineering cost of cast iron pipes is comparable to that of cast stone, and compared with wear-resistant alloy pipes, the engineering cost has decreased by about 20%. Before installing cast iron pipes, check the pipe openings, reserved holes, steel structures, etc. It is not advisable to wait until construction to discover any errors. It is necessary to check in advance. The slope of cast iron pipes should also be fully measured, and the welding location should be set in an easily visible place, which is also beneficial for future maintenance and upkeep. When connecting, attention should also be paid to preventing strong relative situations. Ensure that each interface is fully welded, which can guarantee its sealing effect. Bridge guardrail supports, engineering and chemical wastewater discharge systems on both sides of the highway. To ensure drainage efficiency, the quality of drainage pipes must meet the standards. So what kind of drainage pipe is a good drainage pipe?

　　Bridge deck paving should be carried out simultaneously across the entire width of the bridge, or as instructed by the supervising engineer. The above content is compiled based on the problems encountered by students in their actual work, for reference only. If there are any problems, please communicate and correct them in a timely manner. Does the sliding wire break during the tensioning process of the mobile formwork cast-in-place concrete box girder? The occurrence of slippage during the tensioning process is mainly related to the anchoring clip. One reason is that the hardness of the clamp is not sufficient, and the clamp rack cannot overcome the strong pulling force and is damaged, resulting in slippage; The second issue is that the gap between the clamping teeth is not clean, and there is grease or particulate matter in the gap, which causes the clamping to not be tight during tension, resulting in slipping; Thirdly, the surface of the steel strand is severely corroded, and the clamping is not tight during tensioning, resulting in wire slippage. So to overcome wire slippage, the first step is to ensure that the clamp hardness is qualified. In addition, before installing the jack, clean the working clamp and tool clamp, and polish the corroded steel strand with sandpaper.

　　The commonly used circular cast iron drain pipes have heights of 420mm, 500mm, 600mm, 800mm, etc. Among them, 420x215x100x7 is particularly commonly used. 420mm is the height, the horn mouth height is 100mm, the straight pipe part is 320mm long, the inlet outer diameter is 215mm, the outlet inner diameter is 100mm, and the wall thickness is 7mm. Rectangular cast iron drain pipes are suitable for paving with waterproof layers. The inner diameter is generally 0.10-0.15m, and the lower end of the pipe should extend at least 0.15-0.20m below the bottom of the roadway slab to prevent moisture from the main beam rib surface. The pipe body is smooth and has a long service life. It is a drainage system for highways and railways. The price of cast iron drain pipes varies depending on their model and weight, so it is important to compare prices from three different suppliers before purchasing.

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