Introduction to spiral welded pipe unit
The spiral welded pipe unit is a steel pipe formed by rolling low-carbon carbon structural steel or low-alloy structural steel strips into pipe blanks by a forming machine at a certain forming angle, and then using a submerged arc welding machine to weld the spiral pipe seams. Its advantages It is possible to produce large-diameter steel pipes from narrower strips of steel.
use
1. Used for liquid transportation: water supply and drainage;
2. Used for gas transportation: coal gas, steam, liquefied petroleum gas;
3. Used for structural purposes: piling pipes, bridges, docks, roads, building structure pipes, etc.
product specifications
Pipe diameter φ90~φ3500mm;
Wall thickness: 1~25mm;
Material: All models of Q235~X80
Process flow
Coiling → Uncoiling → Leveling → Shearing and butt welding → Disc shear → Milling → Delivery machine → Pre-bending guide plate → Forming → Internal welding → External welding → Cutting → Pulling out → Flat head chamfering → Hydraulic test → Collection of finished products