Zinc Anti-Corrosion Material ZAP Series [Mechanism of Corrosion Promotion in Piping Support Structures]

basic information

■□■Mechanism■□■ The piping support structure may experience a harsher corrosion environment compared to general areas due to the combined effects of the factors listed below, which can lead to various corrosion incidents. 【Promoting Factors】 ■ Water tends to accumulate (long wetting time) - The shape easily allows accumulation (rainwater and condensation water collect along the piping) - Debris and dust tend to accumulate, making capillary condensation likely ■ Wear of coatings and piping due to thermal expansion and contraction - Piping moves relative to the support structure due to thermal expansion, causing significant friction at the contact points, leading to early peeling of the coating. - The corrosion products that form afterward repeat peeling and regeneration, significantly wearing down the piping (can be considered a type of erosion-corrosion). ■ Structurally, an oxygen concentration cell is formed - An oxygen concentration cell is formed between the contact points of the piping and the support structure, as well as the surrounding areas. ■ For more details, please contact us.

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Applications/Examples of results

In facilities such as oil refineries, piping systems for transporting water, steam, gas, and other substances are intricately laid out like a web. Among these, the contact points between the piping and the supports are exposed to harsh corrosion environments due to electrochemical reactions and thermal expansion. As a result, rust progresses quickly, and in the worst-case scenario, holes can form, posing a high risk of environmental issues and disasters. Therefore, corrosion protection for piping supports is crucial for risk management.