Recently, the first Asian largest self-propelled cutter suction dredger independently designed and built by China, "Tiankun" successfully completed its first sea trial, marking that "Tiankun" has stepped forward to become a real tool for dredging and island building A crucial step. The high-performance wear-resistant and corrosion-resistant steel developed by China's SHBG Special Steel Technology Group for 9 years has been successfully applied on the "Tiankun".
The high-performance wear-resistant and corrosion-resistant steel developed by SHBG has been successfully applied to the dredging pipelines of "Tiankun", which provides a strong guarantee for the sailing of the dredging island heavy equipment. The high-performance wear-resistant and corrosion-resistant steel is a special abrasion-resistant steel developed by SHBG researchers based on the failure behavior of pipelines under seawater dredging conditions. It has the perfect combination of high wear resistance and high corrosion resistance, and is currently the highest level of strength and wear resistance. The steel dredging pipe material with the best corrosion-resistant performance.
In the process of research and development of wear-resistant steel, technicians have overcome many problems, such as: key production technology of wear-resistant steel, anti-corrosion performance evaluation system, ultra-high-strength steel pipe manufacturing technology, high-efficiency welding technology, etc. After three rounds of design, five rounds of certification, and nine years before and after, finally ushered in the first exciting official order, all of these products are used in the national heavy equipment "Sky Whale" and "Tiankun".
The successful development and application of anti-corrosive steel will not only raise the steel grade of China's dredging pipelines to the world's leading level, but also make new contributions to the full implementation of the national marine strategy. It will also reflect significant social benefits: it will enable the service life of dredging pipelines. The extension is doubled. With its nationwide promotion, it is estimated that about 50,000 tons of steel will be saved every year, and it will make outstanding contributions to emission reduction, energy saving and environmental protection.