Recently, the highly anticipated "CTEF 2026 Shanghai International Heat Exchanger and Heat Transfer Technology Exhibition" grandly opened at the Shanghai New International Expo Centre. The technical team from Guangdong Hangao Technology Co., Ltd. showcased several cutting-edge industry technologies, demonstrating a one-stop solution for high-standard heat exchanger tube manufacturing to global customers.

Laser Welding Production Line: A Dual Breakthrough in Precision and Efficiency
The laser welding production line exhibited by Hangao represents the company's latest technological advancements in high-end welded pipe equipment. Designed specifically for applications with extremely stringent welding quality requirements, such as heat exchanger tubes, this production line achieves uniform weld microstructure and a minimal heat-affected zone, fundamentally improving the pressure resistance and service life of the pipes. Compared to traditional welding processes, Hangao's laser welding production line achieves significant optimizations in welding speed, forming accuracy, and energy consumption control, providing heat exchanger tube manufacturers with a more competitive production solution.
Rotary Black Annealing Production Line: A Further Upgrade in Heat Treatment Technology
The rotary black annealing production line is another highlight of Hangao's exhibition. This equipment utilizes innovative rotary annealing technology, coupled with an intelligent temperature control system, to ensure uniform heating of the pipes during the annealing process, effectively eliminating residual welding stress and improving the mechanical properties and surface quality of the pipes. As a key step in the heat exchanger tube production process, this production line significantly improves the ductility and corrosion resistance of the pipes, meeting the stringent requirements of high-performance pipes in the petrochemical, power, and energy industries.

Triple Cathode Welding System: A Stable and Efficient Industry Benchmark
The triple cathode welding system is an innovative achievement developed by Hangao specifically for the welding needs of large-diameter, thick-walled heat exchanger tubes. This system achieves more stable arc control and deeper penetration through a three-electrode collaborative working mode, significantly improving welding efficiency and weld consistency. For products like heat exchanger tubes, which have extremely high requirements for sealing and structural strength, the triple cathode welding system effectively reduces the welding defect rate, helping customers achieve high-quality, high-efficiency, large-scale production.

Hangao: Two Decades of Craftsmanship, Connecting the Future
At the exhibition, the Hangao technical team engaged in in-depth exchanges with numerous industry experts from Europe, Southeast Asia, and China. A Hangao representative stated, “CTEF is our window for in-depth dialogue with our customers. Hangao has always adhered to technology research and development as its core, evolving from early mechanical manufacturing to today's integrated automated and intelligent production system. Our goal is to ensure that every heat exchange system worldwide uses higher-quality tubing.”
As a company deeply rooted in the industry for many years, Hangao not only provides hardware equipment but is also committed to providing customers with full lifecycle services covering factory planning, process guidance, and after-sales support.
If you missed the exhibition, please feel free to visit our website or contact our technical team for more detailed quotations and technical manuals on laser welding production lines and heat exchanger tube manufacturing technology.

