Surface treatment of welded pipes

Welded pipes are steel pipes made of steel plates or strips after curling and welding, and are generally 6m long. The production process of welded steel pipes is simple, the production efficiency is high, and there are many varieties and specifications.

Surface treatment methods

The surface treatment of welded pipes includes hot-dip galvanizing, spraying, phosphating, electrogalvanizing and oxidation treatment, which are mainly used to improve their corrosion resistance, enhance coating adhesion and aesthetics.

The impact of surface treatment on the quality of welded pipes

1. Corrosion resistance: Effective surface treatment such as hot-dip galvanizing or spraying can prevent steel pipes from rusting and extend their service life.

2. Aesthetics: The surface of the treated welded pipe is smooth and uniform in color, which improves the appearance quality.

3. Adhesion: Phosphating and other processes enhance the bonding strength between the coating and the pipe and prevent the coating from peeling off.

4. Wear resistance: Appropriate surface treatment can improve the wear resistance of welded pipes and reduce damage during use.

In general, high-quality surface treatment can significantly improve the overall performance and service life of welded pipes.