• Sort：Information
• Auth:
• Source:
• Release time：2024-10-21 10:00
• Pvs：

【概要描述】The production process of welded pipes: 1.Raw Material Preparation: Steel Coils: Sheets of steel are uncoiled from large rolls. Cleaning: The steel strips are cleaned to remove any rust, dirt, or scale. 2.Forming: Slitting: The cleaned steel coils are cut into narrower strips of predetermined width. Forming Machine: The steel strips are gradually shaped into a cylindrical form using rollers. 3.Welding: Electric Resistance Welding (ERW),High-Frequency Induction Welding (HFW), or Submerged Arc Welding (SAW): The edges of the formed steel strip are heated and fused together to create a continuous seam. 4.Weld Seam Treatment: Removal of Excess Welding Bead: Any excess material at the seam is trimmed off. Heat Treatment: The welded seam is often heat-treated to relieve stresses and improve its mechanical properties. 5.Sizing: Diameter and Thickness Adjustment: The welded pipe passes through sizing rolls to achieve the desired diameter and wall thickness. Straightening: The pipe is straightened to ensure it meets the required straightness tolerance. 6.Cutting: Cut to Length: The continuous pipe is cut into specified lengths using automated cutting machines. 7.Non-Destructive Testing (NDT): Ultrasonic Testing (UT),Eddy Current Testing (ECT), or Hydrostatic Testing: These tests are conducted to detect any defects in the pipe wall or weld seam. 8.Finishing: End Finishing: The pipe ends are machined (e.g., beveled, threaded) according to customer specifications. Coating: The pipes may be coated with protective layers to prevent corrosion. 9.Inspection: Visual and Dimensional Inspection: The pipes are inspected for visual defects and are checked for dimensional accuracy. Mechanical Testing: Samples may be tested for mechanical properties like tensile strength and hardness. 10.Marking and Packaging: Marking: Pipes are marked with relevant information such as dimensions, material grade, and heat number. Packaging: The finished pipes are bundled and prepared for shipment. This process ensures that the welded pipes meet the required standards and specifications for their intended application. For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com JinYuJie-Used Pipe Mills Supplier（Please click the link→) :second-hand pipe mill