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UOE pipe "refers to a longitudinal welded steel pipe produced using the UOE (U-ing, O-ing, and expansion) method. This method involves multiple molding processes, including curling, U-shaped crimping, O-shaped crimping, and expansion, and is used for producing large-diameter pipes.
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UOE pipe is a longitudinally welded steel pipe produced using the UOE method, including crimping, U-crimping, O-crimping, and expansion.
UOE pipe "refers to a longitudinal welded steel pipe produced using the UOE (U-ing, O-ing, and expansion) method. This method involves multiple molding processes, including curling, U-shaped crimping, O-shaped crimping, and expansion, and is used for producing large-diameter pipes.
The UOE method starts with forming a U-shape at the edge of the curled sheet, followed by U-shaped pressing and O-shaped pressing to form a J-shape. The final step is to enlarge the J-shaped tube to form the finished product. This method allows for the production of pipes with diameters up to 1422mm and wall thicknesses up to 25.4mm.
The UOE method is renowned for its high productivity and ability to economically produce high-quality large-diameter pipelines. The pipelines produced using this method are used for various applications such as oil and gas transportation, offshore structures, and water supply.
Another method used for producing longitudinally welded steel pipes is the JCOE (J-ing, C-ing, and O-ing) method.
Firstly, use hard alloy milling equipment to chamfer the longitudinal edges of the steel plate. Then use a U-shaped press to form the inclined panel into a U-shape, and then use an O-shaped press to form an O-shape.
Trimming: Trim the longitudinal edges of the sheet metal by milling to achieve the desired width, and cut the ends diagonally to form a V-shaped groove for welding.
Pre bending: Use a specialized forming press to pre bend the edges of the sheet into a U-shape.
U-shaped forming: Then use a U-shaped forming press to press the U-shaped plate into a J-shape.
O-shaped forming: Then use an O-shaped forming press to press the J-shaped plate to form the final circle.
Welding: The edges of the sheet are longitudinally welded together to form a continuous seam.
Expansion: Then use an expansion machine to expand the welded pipe to its final diameter.
Final processing: UOE pipes are then subjected to various precision machining according to the desired end use, including trimming, end face, welding testing, and coating.
The UOE process is renowned for its ability to produce large-diameter pipelines with high precision and consistency, making it suitable for the transportation of oil and gas as well as various other applications.
The UOE mill adopts the most advanced technology and process, with high production efficiency, stable product quality, and complete testing equipment.
The UOE rolling mill adopts U&O forming, and the formed pipeline is internally welded with three welding wires through five internal welding stations, and externally welded with three wires through four external welding stations.
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