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How to prevent corrosion when welding the industrial galvanized steel pipes
Anti-corrosion of galvanized steel pipe welding: After surface treatment, hot spray zinc. If galvanizing is not possible on-site, you can follow the on-site anti-corrosion method: brush epoxy zinc-rich primer, epoxy micaceous iron intermediate paint, and polyurethane topcoat. The thickness refers...Read more -
Specific content introduction of wave detection of straight seam steel pipe
The wave detection technology of straight seam steel pipe weld is a detection process that has gradually emerged in recent years. It is of great significance to improve the stability of straight seam steel pipe. Regarding the specific application and common problems of wave detection of straight ...Read more -
What inspections are required after the production of submerged arc steel pipes
In the process of producing submerged arc steel pipes, the temperature must be strictly controlled to ensure the reliability of welding. If the temperature is too low, the welding position may not reach the temperature required for welding. When most of the metal structures are still solid, it is...Read more -
Diameter expansion technology and detection methods for straight seam steel pipes
Generally speaking, the diameter of steel pipes can be divided into outer diameter, inner diameter, and nominal diameter. The outer diameter of a steel pipe made of straight seam steel pipe is represented by the letter D, followed by the size of the outer diameter and wall thickness. For example,...Read more -
Differences and uses of seamless steel pipes and spiral welded pipes
Seamless steel pipes have a wide range of uses. 1. General-purpose seamless steel pipes are rolled from ordinary carbon structural steel, low-alloy structural steel, or alloy structural steel, with the largest output, and are mainly used as pipes or structural parts for conveying fluids. 2. They ...Read more -
How to prevent decarburization of spiral welded steel pipes
The service life of spiral welded steel pipes is related to the surface decarburization of spiral welded steel pipes. If the surface is decarburized, the strength and wear resistance of the spiral welded steel pipe will be reduced, which will directly affect the service life of the spiral welded ...Read more