나선형 용접 파이프 생산 공정

The process in the production of spiral welded pipes includes raw material preparation, coil feeding and uncoiling, leveling, shearing and butt welding, edge trimming, feeding, pre-forming and forming, internal welding, external welding, pipe cutting and initial inspection, slag removal, repair welding, chamfering, hydrostatic testing, X-ray inspection, ultrasonic inspection, finished product inspection, inkjet coding, and warehousing.