Common methods for anti-corrosion of 3PE anti-corrosion steel pipe

1. anti-corrosion steel pipeline generally adopts two common methods: outer coating and the application of cathodic protection.

2. although the vast majority of the surface of the pipeline is covered by the coating, the slightest leak will cause an incredible corrosion rate, or even a hole or crack. therefore, the coating system and cathodic protection are generally used in pipeline anticorrosion to achieve a coverage rate of 99.99%, to avoid unimaginable results in the future.

3. the cathodic protection selected for pipeline anticorrosion is divided into dedicated cathodic protection and impressed current cathodic protection.

4. the purpose of the anti-corrosion coating of 3pe anti-corrosion steel pipe is to form a continuous covering layer of insulating material, and the electrolyte in direct contact with the metal will be directly insulated so that the correct electrolytic reaction cannot occur.

5. the disconnected points during the coating laying process are called leakage points. the main reason for the occurrence is the coating, transportation, or installation process. it may also be caused by the aging of the coating, soil stress, or the movement of the pipeline in the soil. timely detection of damage caused by third parties.