Steel Pipe Mill

• The core process of the automated carbon steel pipe mill that welds carbon steel strips into steel pipes through a series of processing procedures is as follows:
• Raw material preparation: Unfold the coiled steel strips, correct their flatness through a straightening machine, and remove surface impurities.
• Forming processing: The steel strip is gradually bent into a tubular shape through a series of roller mould, causing the edges of the steel strip to gradually join together to form an open tube blank.
• Welding process: By using a specific welding method (high-frequency induction welding), the butt edges of the tube blanks are fused and welded to form a closed steel pipe.
• Subsequent processing: After welding, the steel pipes undergo cooling, sizing and straightening to ensure dimensional accuracy and straightness, and are finally cut into fixed-length finished products.
• Stacking, packaging and storage: The cut steel pipes are packaged, transported and stored according to the pre-set quantity.

• High production efficiency: With a high degree of automation, it can operate continuously and is suitable for mass production. Compared with seamless steel pipes, its production cycle is shorter.
• High material utilization rate: Using steel strips as raw materials, there is less material loss during the processing, especially for large-diameter steel pipes, the cost advantage is obvious.
• Flexible product specifications: By adjusting the roller mould and welding parameters, steel pipes of different diameters and wall thicknesses can be produced to meet diverse demands.
• Stable process: The welding quality is controllable, and the performance of the steel pipe is uniform, which can meet the usage requirements of most industrial fields (such as construction, machinery, and fluid transportation).
• Lower equipment investment: Compared with seamless steel pipe production lines, welded pipe production lines have lower equipment costs and energy consumption.

Raw material (steel coil) → uncoiling → shearing and butt-welding → material accumulating → non-power leveling →mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling → sizing → roughly straightening → fixed length cutting → run-out table → Automatic Stacking, Packing and bundling

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