External Welding Machine

In the LSAW (Longitudinally Submerged Arc Welded) pipe making production line, both internal and external welding machines are essential components used to weld the longitudinal seams of the pre-formed pipes. These machines play a crucial role in ensuring the integrity and strength of the welds, ultimately producing high-quality LSAW pipes suitable for various applications in industries such as oil and gas, construction, and infrastructure.

1.External Welding Machine:

Key features and functions of the external welding machine in the LSAW pipe making production line include:

  • Welding Method: Similar to the internal welding machine, the external welding machine also uses the Submerged Arc Welding (SAW) process. However, in this case, the welding arc is created between the continuously fed welding wire and the outside surface of the pre-formed pipe.
  • Welding Head and Manipulator: The external welding machine features a welding head and a manipulator for controlling the welding process. The welding head is equipped with the welding wire and other necessary components for creating and maintaining the welding arc.
  • Seam Tracking System: The external welding machine may also include a seam tracking system to ensure precise positioning and alignment of the welding head along the longitudinal seam of the pipe. This system helps maintain a consistent and uniform weld along the entire length of the pipe.
  • Welding Control System: Similar to the internal welding machine, the external welding machine includes a control system that allows operators to adjust welding parameters to achieve optimal welding quality and efficiency.

In summary, both the internal and external welding machines in the LSAW pipe making production line play critical roles in producing seamless and high-quality pipes. The internal welding machine creates a strong and efficient weld along the inside surface of the pipe’s longitudinal seam, while the external welding machine produces a secure and continuous weld along the outside surface. The combination of these welding processes ensures the structural integrity and reliability of the LSAW pipes, making them suitable for a wide range of applications in various industries.