How to improve the durability of SSAW steel pipes?

Improving the durability of SSAW (Spiral Submerged Arc Welded) steel pipes is crucial for their long-term performance, especially in harsh environments. To enhance their lifespan, various surface treatments and cleaning methods can be applied to prevent corrosion and wear. Below are some steps that can be taken to improve the durability of SSAW steel pipes.

Cleaning with Solvent and Emulsion:

The surface of the anti-corrosive SSAW steel pipe can be cleaned using a solvent and emulsion. This helps to remove organic material like oil, dirt, and grease. However, it does not remove surface rust, scale, or solder, so this cleaning method should be seen as a supplementary step.

Polishing with Wire Brushes and Sandpaper:

By using wire brushes, sandpaper, or other abrasive tools, the surface of the SSAW steel pipe can be polished to remove loose oxide scale, rust, and welding slag. This prepares the pipe for more effective corrosion resistance.

Chemical Pickling:

A more thorough cleaning method involves using chemical pickling, which can effectively remove scale, rust, and old coatings. This process also creates the desired level of cleanliness and surface roughness, which is critical for better adhesion of anti-corrosion coatings.

Abrasive Blasting:

High-speed motors can drive spray blades to rotate, propelling abrasives such as steel grit, steel shots, and wire segments onto the surface of the SSAW steel pipe. This abrasive blasting removes rust, oxides, and other contaminants while also achieving the required surface roughness. The impact and friction from the abrasives ensure the steel pipe is adequately prepared for anti-corrosion treatments.

By utilizing these techniques, the durability of SSAW steel pipes can be significantly improved, ensuring they withstand the elements and continue to perform well over time.