Independent production of high-performance graphite sealing materials

On March 19, the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences announced that the team of researcher Liu Zhanjun of the institute has developed graphite sealing materials for aero/space engines and established corresponding enterprise standards.
The results have been approved as national military standards.

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? The engine is the heart of the aero/space vehicle, and the sealing material is the core component of the engine
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High-performance graphite material is the material of choice for the mechanical seal of China's launch vehicle engines and gas turbines, but this material has been heavily dependent on imports for a long time
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? In view of the performance requirements of high-performance graphite sealing materials in the fields of new aviation/aerospace engines, gas turbines and unmanned aerial vehicles, researcher Liu Zhanjun from the Key Laboratory of Carbon Materials of Shanxi Coal Chemical Institute led the team to achieve high-performance graphite sealing after years of research and exploration.
Self-manufacturing of materials and their application in aviation/aerospace engines
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The series of graphite seal materials developed by the research team have high density, high strength, low porosity, wear resistance, self-lubricating and many other characteristics, which can meet the needs of complex engine conditions and provide key sealing components for China's aerospace/aero engine Material guarantee
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? "The development of high-performance graphite sealing materials began in early 2000.
For more than ten years, the project team has successively undergone laboratory research, pilot test and industrial demonstration stages.
At present, it has mass production and manufacturing capabilities, which can meet the needs of China's advanced aviation/aerospace The service requirements of the engine are tightly sealed
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" Liu Zhanjun said
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? Based on the development of high-performance graphite sealing materials, the project team also established the corporate standards of "HCG graphite for aerospace" and "ASG graphite for aerospace"
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In January 2019, the achievement was declared and approved as the National Military Standard of the People's Republic of China (GJB Military Uniform [2018] No.
824-HCG Graphite Specification for Liquid Oxygen Kerosene Rocket Engine)
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? "The significance of the national military standard approved is very significant, which means that it has obtained the market leadership and voice of this product
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Because all materials applied to military equipment need a unified standard, the standard means that the material preparation has For reference, in the future, whether domestic or foreign materials are used, they must meet this standard
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" Liu Zhanjun introduced
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? He also said that the currently developed high-performance graphite sealing materials are not only used in military industry, but also in other fields
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In the future, the research team will further develop graphite materials urgently needed in other application fields, especially high-performance graphite materials used in nuclear reactors
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