How To Solve the Corrosion Problems of Steel Pipes?

Corrosion is a major factor that seriously affects materials. Metal corrosion is an economic problem. According to statistics of relevant enterprise information, the annual loss caused by metal corrosion accounts for about 5% of the total number of social and economic products. Pipeline corrosion accounts for a considerable proportion.
 
With the sustainable and rapid development of the economy, the demand for energy is constantly increasing, and the amount of pipeline construction is also increasing. In a variety of different urban development planning, there are a large number of gas supply, water supply and heat supply pipelines to be constructed, which makes the corrosion protection technology of pipelines more and more important. Therefore, it is of great significance to strengthen the research of pipeline anticorrosive coating for the development of information technology of pipeline anticorrosive control in the entire management system.
 
The main reason for the hole on the surface of the steel pipe is electrochemical corrosion. When the metal structure has electrochemical reaction, the part with lower electrode potential is easy to lose electrons and become the anode. The more potential part of the electrode can become the cathode by increasing the electrons.
 
The 3PE anticorrosion layer structure: the outer layer is polyethylene with a thickness of about 3mm. The bottom layer is FBE with a thickness of about 50 to 128 mm, and the middle layer is copolymer glue with a thickness of about 200 mm. This structure combines the high adhesion, oxygen resistance, chemical corrosion resistance and cathode-stripping performance of FBE with the moisture resistance, electrical insulation and mechanical system damage resistance performance of HDPE into a perfect organic whole, which has the outstanding advantages of strong surface adhesion, good electrical insulation performance, impact resistance and long life.
 
The 3PE anticorrosion technology combines the excellent properties of epoxy coating with extruded polyethylene coating, and it combines the interface corrosion resistance and chemical corrosion performance of epoxy coating with the mechanical protection performance of extruded polyolefin coating. Its characteristics are as follows: the mechanical management system design research work has high strength, wear resistance, corrosion resistance, heat resistance and cold resistance. It can be used in 150 degrees medium. In addition, the 3PE anticorrosive coating is the ideal anticorrosive coating for buried pipelines. According to the analysis and testing conducted by the relevant authority management departments, the service life of the buried pipeline with 3PE anti-corrosion data processing technology can be as long as 50 years.
 
In the long run, excellent value for money is very obvious. The pipeline system structure of 3PE anticorrosive steel pipe is as follows: The first layer of epoxy powder: FBE > 100 μm. The second layer of adhesive (copolymer adhesive): 170 to 250 um. The third layer of polyethylene (PE): 2.5 to 3.7 mm. The three materials are closely fused together, closely combined with the steel pipe to form a fine tube wall, and preheated according to the epoxy powder process. When the powder is in contact with the pipe wall, the powder will melt and adhere to the pipe wall, reducing the temperature of the pipe wall and reducing the amount of powder adhering to the pipe wall.