Chemical plating technology for corrosion protection materials in refining units

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Electroless plating is a chemical treatment method for metal coatings, which uses an appropriate reducing agent to enable metal ions in the solution to be selectively reduced and deposited on a catalytically activated surface. Practice has shown that electroless nickel plating offers the following advantages: it provides excellent corrosion protection, and compared to carbon steel, it can extend the service life of equipment by 2 to 5 times ； It exhibits better corrosion resistance in chloride environments than stainless steel ； Good heat resistance ； Good heat transfer performance ； It has a certain scale-resistant capacity ； It has good wear resistance. Process equipment for sulfur-containing crude oil is often subjected to corrosion from agents such as H2S, SO2, and Cl-, and applying electroless nickel plating has yielded significant results. In addition to electroless nickel plating, there is also the electroless nickel-chromium co-plating technique.