Methods for preventing or slowing down the corrosion of petrochemical steel pipelines

1. Adapt measures to local conditions: Reasonably select pipeline building materials, and select different types of materials according to different conveying media and environmental conditions.
2. Steel pipe with external DC power supply: the metal of the pipeline that was originally the anode becomes the cathode to be protected.
3. Pre-treatment of the medium: remove highly corrosive components in the medium or adjust its pH value.
4. Add anti-corrosion coating on the surface of the steel pipe: it can isolate the steel pipe from contact with oxygen in the air to achieve protection.
5. Adding corrosion inhibitor: Corrosion inhibitor is the key development direction of anti-corrosion technology in pipelines and other fields. It is a special additive added to metal equipment to slow down corrosion. Its dosage is small, investment is low, and the effect is obvious.


Post time: Mar-08-2023

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