On April 2nd, China First Heavy Industries organized and held a full - scale forging technical appraisal meeting on the "Development of 620℃ Ultra - Supercritical Steam Turbine FB2 High/Intermediate - Pressure Rotor Forgings" in Qiqihar City. Experts from units such as China Huaneng, China Datang, China Huadian, State Power Investment Corporation, National Energy Group, Yanshan University, Taiyuan University of Science and Technology, and the Institute of Metal Research, Chinese Academy of Sciences participated in the meeting. Relevant personnel from Shanghai Turbine Works and Harbin Turbine Works also attended the meeting.
The participating experts listened to the report on the forging development work of China First Heavy Industries and user evaluations. After on - site inspections, inquiries, and demonstrations, they unanimously determined that the overall manufacturing technology of the 620℃ ultra - supercritical steam turbine FB2 high/intermediate - pressure rotor forgings developed by China First Heavy Industries has reached the international advanced level, and some performance indicators are internationally leading. This marks a major breakthrough in the field of ultra - supercritical thermal power core components in China, breaking foreign technological monopolies.
As the "heart" components of ultra - supercritical steam turbines, high/intermediate - pressure rotors need to operate stably for a long time in a high - temperature (620℃), high - pressure, and complex stress environment, with extremely strict requirements for material properties and manufacturing processes. Starting from basic material research and development, China First Heavy Industries has overcome numerous challenges over the years. Relying on the engineering verification of equal - cross - section medium - sized specimens, it has mastered the full - process hot - working manufacturing technologies for the 620℃ ultra - supercritical steam turbine FB2 high/intermediate - pressure rotor forgings, including smelting, ingot casting, forging, and heat treatment. It has overcome key technologies such as the uniform control technology for the alloy of the complex composition system of FB2 high/intermediate - pressure rotor forgings, the formation control technology for preventing cracking and controlling high - temperature ferrite in martensitic heat - resistant steels, and the heat - treatment technology for matching microstructure control with strength, toughness, and creep properties, achieving a significant improvement in the impact performance of rotor forgings.
This achievement not only verifies the mass - production capacity of domestic rotor forgings but also establishes a technical standard with independent intellectual property rights. It will strongly promote China's high - end heavy - duty equipment to move towards the high - end of the global value chain, and is of strategic significance for promoting the construction of a new power system, achieving the "dual - carbon" goal, and ensuring the safety of the national energy industry chain.
Customer service 1 
Customer service 2