Learn about corrosion and protection in chemical industry atmospheres
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This post was last edited by Wang Wei2 on 2025-1-28 09:35. The corrosion of metals under natural atmospheric conditions is known as atmospheric corrosion. There are a large number of metal surfaces exposed to the atmosphere, which means that metal loss due to atmospheric corrosion is also significant. For example, in petrochemical plants, about 70% of the metal components operate under atmospheric conditions. Atmospheric corrosion causes severe damage to many metal structures. Some steel structures develop corrosion products 2-3 millimeters thick after about a year of use; common steel platforms, as well as electrical equipment and instruments, all suffer from severe corrosion. It can be seen that atmospheric corrosion in petrochemical production is both widespread and severe.
Corrosion in chemical industry atmospheres is primarily caused by the presence of acidic gases, salts, humidity, and other factors in the environment, which lead to damage to metal materials. To prevent corrosion, common methods include using corrosion-resistant materials to manufacture equipment, applying surface coatings to the equipment, using preservatives, as well as conducting regular maintenance and inspections. Through these measures, the service life of equipment can be effectively extended and economic losses reduced. .