Pipe corrosion is a common problem. Therefore, in order to avoid or reduce the corrosion of the pipeline, it is necessary to take anti -corrosion measures. Under normal circumstances, the anti -corrosion method of the steel pipe is to apply preservatives, or the surface of the metal tube removal is evenly applied to the surface of the metal pipes and closely apply it densely on the surface Painting, or evenly painted paint on the inner wall of the steel pipe; although some steel pipes have been anticorrosive, this does not mean that they can use it for many years. So, what are the factors that affect the service life of anticorrosive steel pipes? Which factor is the key? How can we solve it?
In order to extend the service life of anti -corrosion steel pipes, the service life of anticorrosive steel pipes depends to a large extent on the anti -corrosion method of steel pipes. Therefore, good anticorrosive materials and anticorrosive methods need to be used. Specifically, it is divided into two points:
(1) To extend the service life of anti -corrosion steel pipes, you must start with the choice of anticorrosive materials.
The materials used in anticorrosive coatings are mainly coal scorched oil enamel paint, which can better protect the pipeline. However, these materials also have many shortcomings, which limits their application scope; The emergence of anti -corrosion -soluble powder coating guides the rapid development of pipeline protection technology.
The main advantage of epoxy resin anticorrosive melting powder coating is good corrosion resistance, good mechanical properties and strong anti -cathode stripping. This process is a single layer of overloaded epoxy powder coating, double -layer heavy -loaded epoxy powder coatings Combining the anti -corrosion structure of the three -layer heavy -loaded epoxy powder coating can protect the steel pipe piles to the greatest extent, alleviate the corrosion of the steel pipe pile, and effectively obtain the anticorrosive pipe and plastic lining pipe; Accurate and scientific, suitable for anti -corrosion treatment of underground pipelines or underwater pipelines.
(2) Correct anticorrosive treatment to extend the service life of anticorrosive steel pipes.
When anticorrosive treatment of steel pipes, pay attention to the following points: surface pre -processing, spray coating on the metal surface of the inner wall of the pressure steel pipe to remove rust, and build The rust removal or mechanical, mechanical rust removal by sand spraying and other methods can improve labor efficiency and reduce pollution to people and air; when the inner wall and outer wall of the pipeline are required or the inner walls of the pipeline are required The rust remover effectively removes the pipeline, the inner surface and the oxides on the outer surface.
After the inner wall of the paint steel pipe, after the quality of the inner wall of the steel pipe is qualified, the paint should be painted in time; the upper paint should be carried out strictly in accordance with the instructions of the paint manufacturer; Completed within 8 hours.
