LSAW steel pipe manufacturing process

    Generally speaking, longitudinal sub-merged arc welded steel pipe’s production process include hot rolled, casting and other production methods.

    LSAW steel pipe’s production process is as below:

    Steel plate--- Electromagnetiic lifter--- Jointed plate--- Reversed double-side external welding--- torch trimming--- O pressing--- C pressing--- J pressing--- Pre-welding (melting pole argon arc welding)--- welding of run-on/off tab--- internal welding--- back gouging--- external welding--- removal of run-on/off tab--- ultrasonic inspection--- straightening--- rounding--- ultrasonic inspection--- Circumferential stratified --- UT inspection at pipe end--- X ray inspection--- Magnetic particle examination at pipe end--- finished product inspection--- weighing and measuring--- external anti-corrosion---internal anti-corrosion---marking---cargo delivery.

    You can tell that we can have a mature manufacturing and quality control system.

    http://www.xysteelpipe.com/info/LSAW-steel-pipe-manufacturing-process-736-1.htm

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