How to improve the quality of spiral welded steel pipes

Spiral welded steel pipes are one of the important materials used in the transportation of media. They are used for the external corrosion protection of steel oil, gas, water, and heating pipelines. What level of durability improvement is best for spiral welded steel pipes? The durability of spiral welded steel pipes has become an important signal for urban development!

Surface treatment of spiral welded steel pipes is beneficial to improving their service life.

1. Using tools such as wire brushes and sandpaper to grind the surface of the anti-corrosion spiral welded steel pipe can remove loose oxide scale, rust, welding slag, etc.

2. Using solvents and emulsions to clean the surface of the anti-corrosion spiral welded steel pipe can remove inorganic substances, but it cannot remove surface rust, oxide scale, welding flux, etc., so cleaning can only be used as an auxiliary method.

3. Chemical pickling is used for the corrosion protection of spiral welded steel pipes. This can remove oxide scale, rust, and old coatings, and can achieve a certain degree of cleanliness and roughness on the surface.

4. Driven by a high-power motor, the spray (blasting) blades rotate at high speed, causing abrasives such as steel grit, steel shot, iron wire segments, and minerals to be sprayed (blasted) onto the surface of the anti-corrosion spiral steel pipe under the action of centripetal force. This not only thoroughly removes rust, oxides, and dirt, but also achieves the required average roughness of the anti-corrosion spiral steel pipe under the action of the intense impact and friction of the abrasive.