Because they are stacked outdoors, and most of the steel pipes are buried in the ground, they are easy to corrode and rust. In order to ensure the smooth flow of the pipe, the spiral submerged arc pipe must have strong corrosion resistance. Once the pipeline is corroded, oil and gas leakage will occur, which will not only interrupt the transportation, but also pollute the environment and may even cause fire and damage. Spiral tube manufacturers tell you about the factors that cause spiral tube corrosion:
1. Anti-corrosion failure. When the pipeline is erected, it is necessary to do anti-corrosion work or directly use anti-corrosion spiral steel pipe. The reason for the corrosion of the pipeline is because the anti-corrosion layer of the pipeline has been damaged. Once the anti-corrosion layer and the surface of the pipe are detached, it will naturally cause corrosion failure. This is also the ladder type we must use anti-corrosion spiral tube when purchasing the spiral tube.
2. The influence of external conditions. The main thing is to look at the characteristics of the medium around the pipe, the temperature, and whether the medium around the pipe is corrosive. Because the corrosiveness of the medium is closely related to the various microorganisms contained in the soil. And if it is a long-distance pipeline, the nature of the soil environment is more complicated.
In addition, the temperature of the environment in which the pipeline is located also affects the corrosion of the spiral tube. If the temperature is higher, the corrosion rate will be faster, and if the temperature is lower, the corrosion rate will be slower. The above is the two reasons for the rust of the spiral tube.