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This project is mainly aimed at supporting the needs of large-scale hydro-generating units, coal mining machinery, metallurgical equipment, and nuclear power equipment. Research has been conducted on seal theory, materials, structures, manufacturing processes, quality control, and performance testing to form a finite element auxiliary seal. Structural optimization, elastic compensation design of sealing structure, large non-die seal ring turning machining, constant low friction and pressure resistant ultra-large PTFE combined sealing processing, super-large seal performance testing and high-performance nuclear main pump mechanical seal six core technology. During the implementation of the project, a high-performance hydraulic turbine generator set, coal mine hydraulic support, and AGC cylinder combination seals were developed, industrialization demonstration bases were established, and good economic benefits were achieved; 17 national patents were applied, including invention patents. Items, published 23 papers; at the same time, the development of three corporate standards and internal technical specification documents 4.
In particular, the three innovative achievements of the project are of great significance to the realization of the localization of major key components such as large-scale hydro-generator units, large-scale fully-mechanized coal mining machinery, and large-scale metallurgical equipment. The high-performance major equipment rubber and plastic seals developed by this project have reached the level of imported similar products with comprehensive performance and service life. The technology is at the leading domestic level, and some of the technologies have filled the domestic gap and have achieved significant economic and social benefits.
The “Eleventh Five-Year†project of Guangzhou Machinery Institute passed the acceptance
The total project of the “Key Basic Components and General Parts†project of the “Eleventh Five-Year†National Science and Technology Support Program jointly undertaken by the Guangzhou Institute of Machinery Science and the Hefei General Machinery Research Institute, as well as four sub-topics and three results, recently passed the expert group. Acceptance and identification. The expert group believes that through the implementation of the project, not only has opened up a research and development and production processing technology for low-cost, high-performance sealed products for hydroelectric, coal, metallurgy, nuclear power and other related industries, but also marks a major advanced machinery in China. Major breakthroughs have been made in the technology of key sealing elements.