Introducing the spiral welded pipe production line for sale.
Unlike ERW, which changes the production size through roll replacement, the spiral pipe manufacturing process changes the pipe production size by changing the angle of the inlet connected from the uncoiler to the main driver.
The manufacturing process begins by unwinding the hot-rolled steel coil, which is the material of the product, through an uncoiler facility without going through a separate cutting process.
The unwound coils go through a process called plywood that connects coils to each other for continuous manufacturing operations.
The plywood coil goes through the edge milling process to process both ends to improve welding efficiency and quality.
Afterwards, the coil is advanced through the main driver and enters the forming process to manufacture it into a circular shape.
The welding method is a SEW method that uses welding wire and flux to weld without the arc being visible, and is a welding method suitable for manufacturing large-diameter and thick steel pipes.
Welding consists of completing internal welding and then proceeding with external welding.
The pipe, which has a circular shape, is cut to meet product specifications through plasma cutting.
The cut pipe goes through a process of chamfering both ends to suit the intended use, and at this time, detailed length adjustments are made.
Among manufactured products that require repair, repair work is done using automatic plywood welding equipment that automatically welds the plywood portion of the pipe.
Finally, the completed pipe goes through marking and inspection before being shipped.
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2 окт 2024
