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What is the surface treatment of S235J0 steel plate?

The surface treatment of S235J0 steel plate can be used in the following ways:

1. Pickling: Pickling is a common surface treatment method that removes surface oxidation, rust and other impurities by soaking S235J0 steel plate in an acidic solution. Common pickling agents include hydrochloric acid and sulfuric acid.

2. Grinding wheel polishing (Grinding) : Grinding wheel polishing is to remove the uneven surface defects such as oxidation layer and burr on the surface of S235J0 steel plate through mechanical friction. This method is often used in applications where flat and smooth surfaces are required.

3. Shot Blasting: Shot blasting is to spray high-speed particles (such as steel or aluminum pellets) to the surface of the S235J0 steel plate to remove surface dirt, oxidation layer and rust, and provide a certain surface roughness.

4. Galvanizing: Galvanizing is to immerse the steel plate in melted zinc to form a protective layer of zinc on its surface. This method can effectively prevent the oxidation and corrosion of S235J0 steel plate and extend its service life.

5. Coating: By applying different types of coatings or paints on the surface of the S235J0 steel plate, it can provide anti-corrosion, aesthetic and other special performance requirements. Common coating methods include spraying, rolling coating and dipping coating.

The choice of the appropriate S235J0 surface treatment method depends on the specific application requirements, environmental conditions and expected performance. Before performing any surface treatment, it is recommended to refer to the relevant standards and specifications and consult a professional materials engineer or treatment supplier to ensure that the most appropriate surface treatment method is selected.