Which factors will cause rust corrosion of double-sided submerged arc welded spiral pipe

Which factors will cause rust corrosion of double-sided submerged arc welded spiral pipe

Spiral tubes are stacked outdoors, and most of them are buried in the ground when they are used, so they are easy to corrode and rust. In order to ensure the smooth flow of pipelines, it is required that spiral tubes have strong corrosion resistance. Once the pipeline is corroded, it will cause oil and gas leakage, not only interrupt transportation, but also pollute the environment, and may even cause fire, causing harm. The spiral pipe manufacturer tells you about the factors causing the corrosion of the spiral pipe.

1. The first is the influence of external conditions. Mainly depends on the characteristics of the medium around the pipeline, temperature, and whether the medium around the pipeline is corrosive. Because the corrosiveness of the medium is closely related to the microorganisms in the soil. And if it is a long-distance pipeline, the soil environment is more complex. In addition, the temperature of the environment in which the pipeline is located also affects the corrosion of the spiral pipe. If the temperature is higher, the corrosion speed will be accelerated, while the corrosion speed will be slowed down when the temperature is low.

2. Corrosion protection is invalid. When pipeline is erected, it is necessary to do a good job of anti-corrosion or use anti-corrosion double-sided submerged arc welded spiral pipe directly. The reason for pipeline corrosion is that the anti-corrosion layer of pipeline has been damaged. Once the anticorrosive coating and pipeline surface are separated, it will naturally cause anticorrosive failure. This is also ladder type. When choosing spiral pipe, we should choose anticorrosive spiral pipe.