Technical Features of Pipe Making Machines

The flexible forming technology of the pipe-making machine adopts the roller bending forming principle. Through 12 to 24 progressive deformations, the steel strip is coiled into a circular or irregular cross-section. The latest servo drive system enables a forming speed of up to 60m/min and a thickness adaptation range of 0.5-25mm.
The high-frequency welding system is equipped with a 200-400kHz high-frequency induction welding machine, and the welding temperature can reach 1400℃ instantaneously. Equipped with an online eddy current flaw detector, it ensures that the weld quality complies with API/EN standards, and the synchronization deviation between the welding speed and the forming speed is less than 0.5%.
The multi-functional processing capability enables the same equipment to produce over 20 types of cross-sections, including round tubes, square tubes, and elliptical tubes, by changing the molds. Some models integrate post-processing units such as punching and embossing to achieve compound processing.
The modular design consists of a modular production line composed of an uncoiler, a leveling machine, a forming machine, a welding machine, a sizing machine and a cutting machine. It adopts a quick-change chuck design, and the specification switching time can be compressed to within 30 minutes.
The intelligent control system is equipped with a PLC+ human-machine interface control system, which can monitor 18 parameters such as forming force and welding current in real time. The new model is equipped with a visual positioning system, and the cutting accuracy reaches ±0.1mm.
The energy-saving and environmentally friendly configuration adopts variable frequency drive technology, reducing energy consumption by 25% compared with traditional equipment. Equipped with a welding fume collection device, the particulate matter emission concentration is less than 20mg/m³.
The dimensional accuracy performance of the sizing unit adopts a three-roll structure. The outer diameter tolerance of the finished product is ±0.15mm, and the ellipticity is ≤0.5%. The deviation of wall thickness uniformity is controlled within ±7% of the nominal thickness.
The mechanical performance advantages: The weld strength reaches over 95% of the base material, and the pass rate of the flaring test is over 99%. The requirements of different strength grades of Q235-Q460 can be achieved through online heat treatment.
The surface quality control is configured with an online polishing unit, and the surface roughness Ra is ≤1.6μm. The galvanized pipe production line integrates passivation treatment function, and the salt spray test time can reach 500 hours.