In recent years, offshore deep-water dock project has been large-scale construction in the domestic coastal, as the bearing capacity of the pile of deep-water wharf, commonly used spiral weld large diameter pipe piling; In addition, bridges, roads, high-rise buildings also need pipe piling.
Besides, pipe piling is a structural building material used to support and stabilize a building's foundation. When the soil below a building is loosely packed, it may not offer enough strength to keep the building stable over time. A pipe piling can be used to distribute the weight of the building deeper into the earth, where the soil is often more tightly packed.
Manufacturing methods of spiral welded steel pipes
Spiral Pipe is a strip coil as raw material, often warm extrusion molding, two-wire double-sided submerged arc welding process automatically welded spiral seam steel pipes.
Appearance quality of steel pipes
Steel pipes weld surface shall not have cracks, broken arc, craters and holes and other defects, the above-mentioned defects of the weld to allow welding defects allow grinding or repair. Pipe to allow the strip rival weld, steel pipes to allow the docking from two pipe butt welding can be submerged arc welding or manual welding process.
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