The high-temperature alloy casting project group of GYHF Precision Casting Co., Ltd., a leading manufacturer of precision casting blades and precision casting structural parts for China's leading aeroengines, has completed the mass production task of 400 single crystal blades of a certain model with high quality, marking that our institute has The batch production and supply capability of hollow single crystal blade castings with complex structure has realized the transformation from scientific research to production.
Monocrystalline blades are the key hot end components of advanced aero engines, and the manufacturing quality of the blades directly determines the overall performance of the engine. However, it is difficult to control the moldability and single crystal integrity of hollow single crystal blades with complex structures, and the overall pass rate is low. In response to this problem, the casting superalloy group has carried out a series of research work in recent years, revealing the formation mechanism of single crystal solidification defects, breaking through the defect control bottleneck of single crystal blade directional solidification, using self-developed directional solidification equipment to master The whole process preparation technology of high-quality complex structure hollow single crystal blade castings has been established, and a complete single crystal blade development and production platform has been built. It has the development and delivery capabilities of various complex structure hollow blade casting blanks and finished products. OEMs, Beijing Power Machinery Research Institute, Institute of Engineering Thermophysics, Chinese Academy of Sciences and other units have provided a variety of small batches of test evaluation components.
The successful completion of the batch production of single crystal blades provided valuable experience for the subsequent batch production of similar parts. Based on this, the research team will further optimize the preparation technology of single crystal blades, in accordance with the established planning direction, without forgetting the original intention and forging Go forward and continue to contribute to the development of China's advanced aero engines and gas turbines.
About GYHF Precision Casting Co., Ltd.
The company is a professional company integrating innovation research, product scheme testing and mass production as the core of the professionalization of aeroengine blade precision casting products. It has a national-level technical center and academician workstations. .
The company has more than 950 employees and more than 210 professional and technical personnel. Mainly engaged in the research and development, trial production, production, repair and sales of precision casting blades, precision casting structural parts, ceramic cores and casting master alloys of aeroengines.
The company has made outstanding achievements in scientific research and production of aeroengine precision casting blades. It has won many national aviation national major contribution units, national science and technology progress awards, quality awards, aviation national power pioneer pioneer awards, Shi Changxu and many others. Famous national experts and scholars have participated in research work in enterprises. As a specialized manufacturer and manufacturer of aeroengine turbine blades and a national complex hollow turbine blade R & D center, they have shouldered the historical mission and mission of providing high-quality blades for aerospace engines throughout the industry.
Over the years, the company has worked closely with many scientific research institutes such as the Academy of Aeronautical Materials, the Chinese Academy of Sciences, the Institute of Metals, Beihang University, etc. to continuously strengthen the promotion and application of new materials, new processes, and new technologies. Key technologies such as precision casting, complex cavity hollow blade manufacturing, micro-hole processing, blade heat surface treatment and protective coating have formed a relatively complete blade manufacturing process system and key manufacturing technology, filling a number of technical gaps and being in the domestic leading position and at advanced level in global market.