API ERWΦ42.2mm High frequency welded pipe mill line
This API pipe mill line is the industries of petroleum and natural gas production of straight seam welded pipe, special equipment for hot rolled strip steel as raw material, by using the method of cold bending forming and high frequency welding, production required specifications of the circular pipes and rectangular pipes. The whole set is selected by FFX molding method. This kind of forming method is especially suitable for the world’s advanced technology, and the stress state is more reasonable during the deformation process, which can save 50% of the roll. Based on this theory, our company is able to absorb and absorb this advanced molding technology into this unit, so that the unit can reach the international advanced technology level.
This API pipe mill line adopts the mature, reliable, complete, economic applicable advanced technology, advanced equipment, to ensure product quality, cost, and the consumption indexes reach the advanced level, products have strong competitiveness in quality and price.
This production line is not only formed part of the technology advanced, the fine forming, the diameter has its own characteristics, changing roller fast. It has a perfect production process.
Production Line Process
Coil loading ➔ Uncoiling ➔ Strip threading & leveling machine ➔ Shearing & Welding ➔ Accumulating ➔ Forming ➔ HF welding ➔ Inner & Outer de-burring ➔ On-line UT ➔pull-out stand ➔Weld annealing ➔pull-out stand ➔ Air Cooling ➔ water cooling ➔ Fine sizing ➔ Turk straightening ➔ Flying cut off ➔ End facing ➔ Hydrostatic testing ➔Tube body ultrasonic testing ➔ drifter➔Weighing、measuring and、spraying➔ Packaging ➔ storing.
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