The Development and Application of Pipe Welding Machine Technology

The welded Pipe Machine is a specialized equipment that processes metal strips into straight seam steel pipes through forming, welding, sizing and other procedures. It is widely used in the fields of oil pipelines (accounting for 35%), building structures (25%) and mechanical manufacturing. The production speed of modern welded pipe production lines can reach 120m/min, with pipe diameters ranging from Φ10 to 2500mm, and the wall thickness accuracy control can reach ±0.1mm.
Core technology module
Forming system
The progressive roll bending forming technology is adopted, and the strip is rolled into a tube blank through 12 to 24 passes of roll rolling
The power of the high-frequency induction welding (HFW) equipment reaches 400-800kW, and the welding temperature is 1300-1500℃
Laser welding technology can achieve the welding of 0.2mm ultra-thin-walled tubes, with a heat-affected zone of less than 0.5mm
Intelligent control system
The defect detection rate of online weld seam inspection (X-ray/ultrasonic) is ≥99.7%
Siemens S7-1500PLC realizes dynamic compensation for the forming roller gap (adjustment accuracy 0.01mm)
The digital twin system can predict the mold wear cycle and reduce downtime by 30%
Industry innovation direction
The global market size of welded pipe machines is expected to exceed 5.4 billion US dollars in 2025, with an annual growth rate of 18% in the processing demand for lightweight materials (aluminum alloys/titanium alloys). Emerging technologies such as:
Plasma-mig composite welding (efficiency increased by 40%)
Real-time quality monitoring system based on machine vision
Modular design enables rapid switching between oil and gas pipelines and automotive exhaust pipe production lines