News | Zhongjie Special Equipment Wins the First Prize for Scientific and Technological Innovation in Shandong's Equipment Manufacturing Industry!

On November 11, the Shandong Equipment Manufacturing Association announced the list of winners for the 2025 Shandong Equipment Manufacturing Technology Innovation Awards. Shandong Zhongjie Special Equipment Co., Ltd. stood out among numerous outstanding achievements and won the first prize for its project "Research and Industrialization of Strain Strengthening Key Technologies in PAW-GTAW Composite Welding for Cryogenic Containers." This achievement fully demonstrates the company's technical strength and leading position in the field of special equipment.

The project focuses on addressing bottlenecks in the manufacturing process of cryogenic containers, achieving breakthroughs in key technologies. Cryogenic containers are critical equipment for storing and transporting ultra-low temperature media such as liquid hydrogen, liquefied natural gas (LNG), liquid nitrogen, and liquid oxygen, with extremely high requirements for material low-temperature toughness, welding strength, and structural reliability. The company's developed PAW-GTAW hybrid welding and strain strengthening technologies overcome the limitations of traditional processes, significantly improving weld zone performance and low-temperature toughness while reducing equipment wall thickness. This achieves dual objectives of lightweighting and energy-saving in cryogenic container manufacturing, effectively supporting green manufacturing and industrial upgrading.

The successful industrialization of this technology has broken foreign technological barriers, enhanced China's independent manufacturing capabilities and market competitiveness in cryogenic storage and transportation equipment, and provided critical technical support for national energy security and cost reduction and efficiency improvement in related industries. This award is both an honor and motivation. In the future, Zhongjie Company will continue to uphold the innovative philosophy of "technology as the foundation and innovation as the driving force," further deepen research on key core technologies, and help Shandong's equipment manufacturing industry advance toward high-end, green, and intelligent development, injecting strong momentum into the industry's high-quality growth.