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Corrosion Protection Processes and Quality Control for Steel Structures

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 Corrosion Protection Process for Steel Structures Corrosion protection processes for steel structures are essential for ensuring that steel structures remain in good condition over the long term. This article provides a detailed overview of the various steps involved in these processes, including surface preparation, priming, coating application, quality control, and final inspection and acceptance. Surface treatment Surface preparation is the first step in the corrosion protection process. Its primary purpose is to remove dirt, grease, rust, and other contaminants from the surface of steel structures to improve coating adhesion and corrosion protection. Surface preparation includes the following steps: Cleaning: Removing grease, dirt, and dust from the surface of steel structures using solvents or detergents. Degreasing: Removing grease and wax-like substances with an alkaline degreaser to improve coating adhesion. Rust Removal: Removing rust and other corrosion products from the...
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The surface of the steel structure workshop should be anti-corrosion and surface treatment

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 Steel structure engineering buildings can be seen in many places. However, the surface of the steel structure should be anti-corrosion and surface treatment to ensure the quality of the surface of the steel structure. The following steel structure plant will take a look at the corrosion prevention method and surface treatment of steel structure.

1, metal protective layer: metal protective layer is a metal or alloy with cathode or anode protection, through electroplating, spray plating, chemical plating, hot plating and osmotic plating and other methods, in the need to protect the metal surface to form a metal protective layer (film) to isolate the contact between the metal and the corrosive medium, or the use of electrochemical protection to protect the metal, so as to prevent corrosion.

2, chemical protective layer: through chemical or electrochemical methods to generate a compound film with corrosion resistance on the surface of the steel to isolate the contact between the corrosive medium and the metal to prevent the corrosion of the metal.

3, non-metallic protective layer: with paint, plastic, enamel and other materials, through brushing and spraying methods, the formation of a protective film on the metal surface, so that the metal and the corrosive medium isolation, so as to prevent the corrosion of the metal.



Steel surface treatment:

After steel processing, before leaving the factory, the surface of the component will inevitably be stained with pollutants such as oil, water, dust, and surface defects such as burrs, oxide sheets, and rust layers.

From the main reasons for the corrosion of the steel structure, we know that the content of pollutants is an important factor affecting the degree of atmospheric corrosion, and the surface dirt will seriously affect the adhesion of the paint on the surface of the steel, and make the rust under the paint film continue to expand, leading to the failure or destruction of the coating, and can not achieve the desired protective effect.

Therefore, the impact of the quality of steel surface treatment on the protective effect and life of the coating is sometimes even greater than the difference in the performance of the coating itself, and should be paid attention to.

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