Steel pipelines play an important role in people's lives and work. Oil transportation, gas transportation, chemical material transportation, etc. are inseparable from pipelines. Their own characteristics are that they are prone to corrosion. The occurrence of corrosion will have varying degrees of impact on human production and life. At the least, it will cause economic losses, and at the worst, it will endanger personal safety. Therefore, anti-corrosion in pipelines is the main method to prevent corrosion.
Zhuohuang Industrial Polyethylene Anti-corrosion Tape
Steel pipes will be corroded and damaged by the environment after being buried in the air or buried. In order to prevent corrosion and damage of steel pipes, anti-corrosion layer and cathode protection methods are usually used to protect the pipes. The function of the external anti-corrosion layer is to isolate the surface of the steel pipe from the surrounding environment, thereby achieving the purpose of suppressing corrosion. Cathodic protection is to reduce the corrosion potential, that is, when the buried steel pipe is exposed to corrosion, corrosive electrons are first provided by the cathodic protection current, rather than the iron of the steel pipe, thereby achieving the purpose of electrochemical protection. Regarding the effects of external anticorrosion layer protection and cathode protection, expert experiments have proved that the external anticorrosion layer protection of the pipeline is the main and cathode protection is auxiliary.
Zhuohuang Industrial Polypropylene Anti-corrosion belt
When the anti-corrosion layer outside the buried pipeline is riddled with holes, cathode protection will not work, and may even play a negative role, such as cathode peeling. The importance of the anti-corrosion layer of
pipeline is very clear. Let me introduce to you the combination anti-corrosion layer of polyethylene anti-corrosion belt + polypropylene anti-corrosion belt. The main advantages of polyethylene anti-corrosion belt are that they have high insulation resistance, good anti-straight current performance, and easy construction. The disadvantage is that it has poor resistance to soil stress. This anti-corrosion layer is suitable for pipeline repair, pipe fitting anti-corrosion and ground pipe anti-corrosion. The polypropylene anticorrosion tape base material is modified polypropylene woven fiber cloth, and butyl rubber modified asphalt is used as the anticorrosion rubber layer. It has the characteristics of simplicity of construction, impact resistance, aging resistance, tensile resistance, ultraviolet radiation resistance, and high bond strength. The combination of the two can solve the corrosion protection problem of buried pipes.
