Aug.2024 26
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Cleaning of impurities inside ductile iron pipes

Details

It is difficult to clean the debris inside ductile iron pipes. To address this issue, Huazheng Foundry has developed a relative solution. The following content will explain how to clean the debris inside ductile iron pipes.

Remove and clean all debris from the socket of ductile iron pipes. Clean the adhesive on the rubber ring, bend the rubber ring into a "plum blossom" or "8" shape and insert it into the socket groove. Press the entire rubber ring with your hand or use a rubber hammer to press it firmly, ensuring that all parts of the rubber ring do not curl or twist, and are evenly stuck in the groove. Apply lubricant evenly on the inner surface of the rubber ring installed on the socket, and when applying lubricant on the outer surface of the socket, brush all the socket parts outside the socket line evenly.

The pipe should be lowered to the bottom of the groove according to the requirements of the pipe, usually using manual or mechanical lowering methods. Installation of machinery and equipment: Install the prepared machinery and equipment in place for ductile iron pipes, and be careful not to contaminate the cleaned pipe parts again during installation. Both ductile iron pipes and ordinary cast iron pipes contain graphite monomers, which means that cast iron is a mixture of iron and graphite.

Graphite in ordinary cast iron exists in flakes, and its strength is very low, so it is equivalent to the presence of many flake like voids in cast iron. Therefore, ductile iron pipes have lower strength and brittleness in ordinary cast iron. The graphite in graphite cast iron is spherical, corresponding to the presence of many spherical voids in cast iron. The impact of spherical voids on the strength of cast iron is much smaller than that of sheet-like voids, so the strength of ductile iron pipes is much higher than that of ordinary cast iron.

As an excellent water supply pipe material, ductile iron pipes should have the following characteristics: high strength, corrosion resistance, high pressure resistance, low accident rate, long service life, and high elongation. The main pipes used in water and gas pipeline engineering include cement pipes, gray iron pipes, ductile iron pipes, and steel pipes.