Datong cast iron drain pipe quotation customized according to drawings

Description :

　　The drainage pipe is a new type of corrugated permeable plastic pipe made of high-density polyethylene with other additives. The permeable corrugated pipe is processed by punching holes in the groove and wrapping it with needle punched geotextile around the outside of the pipe. Because the pipe holes of this product are located in the valley and are elongated, it effectively overcomes the harm of flat circular hole products being easily blocked and affecting drainage.

　　When the drainage pipe is cast, its appearance and thin film often appear white, with hard and brittle white tissue, poor processing function, and simple falling. Therefore, annealing elimination method should be selected. Annealing: Heat to 550-950 ℃ and hold for 2-5 hours, then furnace to 500-550 ℃ and air cool again. In the process of high-temperature insulation, high permeability carbon and eutectic infiltration, secondary carbide and eutectoid carbide differentiation, and graphitization.

　　Due to the mechanical function of the moving casting, the normalization of the drain pipe is sometimes achieved by preparing the ductile iron surface quenching structure, standardizing high-temperature normalizing, and low-temperature normalizing. The high-temperature normalizing temperature generally does not exceed 950~980 ℃, and the low-temperature heat incineration temperature is planned to be 820~820 ℃. After normalizing and tempering the drainage pipe, it is generally treated to eliminate internal stress generation and achieve high-temperature annealing and rocky desertification in casting.

　　Sometimes, in order to simplify the structure and save materials, the construction unit can directly reserve horizontal holes on the safety belts or curbstones on both sides of the inner lane, and use iron pipes or pipes to discharge water outside the bridge. The pipe mouth should extend 0.02~0.03m from the component to facilitate dripping, taking into account the production and transportation cycles.

　　So most customers inquire in advance and provide corresponding equipment drawings assuming that the drainage pipe is relatively thin. Slope development and soil and water conservation; Underground drainage in land preparation engineering; Cast iron drain pipe, suitable for paving structures with waterproof layers. The inner diameter of the drain pipe is generally 0.10~0.15m

　　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 seeping out of the outer surface of the main beam ribs. And the bridge cast iron drainage pipes that can be produced at 360 degrees, 270 degrees, 180 degrees, and 90 degrees are corrosion-resistant, beautiful in appearance, easy to install, low in cost, corrugated structure, and easy to discharge.

　　Bridge drainage pipes can be divided into two types: circular and rectangular. Taking this as an example, let's explain that this indicates a circular iron drainage pipe with a height of 420mm, a large horn mouth diameter of 215mm, a bottom circular mouth diameter of 114mm, and a wall thickness of 7mm; The corresponding drawings for rectangular requirements will not be listed here. Good details are called exquisite, while poor details are called rough.

　　In addition, the bridge drainage pipe, due to its common cast iron process, galvanized steel pipe raw materials, and double corrugated structure, is more conducive to sewage discharge, so it is not easy to rust, requires no protection, and is not easily deformed at high and low temperatures. It has a long service life. To ensure the smooth flow of the permeable system, the holes are mostly located in the valley, with a low price and convenient installation!

AfterSalesService :

• Datong cast iron drain pipe