Spiral Welded Pipe Price

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Anti-Corrosion Spiral Welded Pipe Technology

The main process involves using a wire brush and other tools to polish the surface of the steel. Cleaning and preheating the spiral welded pipes can remove loose or lifted oxide scales, rust, welding slag, and more. Hand tool de-rusting can achieve the Sa2 level, and power tool de-rusting can reach the Sa3 level. If the steel surface has a firmly attached oxide scale, the de-rusting effect of the tools is not ideal, and it will not achieve the required anchor pattern depth for anti-corrosion construction.

Acid cleaning employs solvents and emulsions to clean the surface of the welded steel pipes used for low-pressure fluid transmission and to remove oil, grease, dust, lubricants, and similar organic substances. However, it cannot remove rust, oxide scales, welding flux, and other impurities from the surface of the steel, so it is only used as an auxiliary method in corrosion prevention production.

Generally, chemical and electrolytic methods are used for acid-cleaning treatment. Pipe corrosion prevention only uses chemical acid cleaning, which can remove oxide scales, rust, and old coatings and sometimes can be used as a post-treatment after sandblasting de-rusting. Although chemical cleaning can achieve a certain degree of cleanliness and roughness, its anchor pattern is shallow, and it can easily cause pollution in the environment where spiral welded pipes are stacked.

Overall, the anti-corrosion spiral welded pipe technology can help extend the storage time and ensure the quality of the pipes by employing effective rust prevention techniques.

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