In 2023, Harbin Electric Power Group Harbin Electric Machinery Co., Ltd. and China First Heavy Machinery Co., Ltd. worked together to successfully overcome technical barriers and successfully offline the runner forgings of the world's largest impact hydropower unit. This feat not only marks a major breakthrough in the field of high-end equipment manufacturing in China, but also demonstrates the firm determination and outstanding strength of Harbin Electric Power Group to climb the peak of science and technology.

It is understood that the runner forging is one of the core components of the 500 MW impact hydropower unit of the Zara Hydropower Station, and its manufacturing is extremely difficult. The runner forgings are made of 300-ton martensitic stainless steel ingots, with a forging weight of more than 160 tons, an outer circle diameter of nearly 5 meters, a maximum thickness of 1.2 meters, and a weight of 107 tons of finished wheel hub forgings. This large-scale forging is facing great challenges in material selection, process design, quality control and so on.

With years of technology accumulation and innovation capabilities, Harbin Electric Group has successfully overcome technical barriers. In the manufacturing process, Harbin Electric Group adopts advanced forging technology and equipment, and realizes the near net shape and homogenization of forgings through precise process control and optimization. At the same time, Harbin Electric Group also used numerical simulation technology to conduct in-depth research and analysis of the forging process, effectively improving production efficiency and product quality.

The successful rolling-off of the runner forgings is of great significance for improving the equipment level and international competitiveness of China's hydropower industry. It can not only meet the needs of large hydropower stations for high-performance and high-reliability runner forgings, but also promote the development of China's hydropower equipment to high-end, intelligent and green.

Harbin Electric Power Group said that it will continue to adhere to the new development concept of "innovation, coordination, green, openness and sharing" and constantly promote technological innovation and industrial upgrading. In the future, Harbin Electric Power Group will continue to increase its investment in the field of high-end equipment manufacturing, strive to create more internationally competitive products and services, and make greater contributions to my country's industrial development.

The success of the runner forgings off the production line, but also by the industry's wide attention and praise. Experts said that this achievement not only shows the strong strength of Harbin Electric Group in the field of high-end equipment manufacturing, but also reflects China's great progress in scientific and technological innovation. In the future, with the continuous development and innovation of technology, it is believed that China's hydropower industry will usher in a broader space for development.