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VACUUM ›› 2025, Vol. 62 ›› Issue (1): 67-71.doi: 10.13385/j.cnki.vacuum.2025.01.11

• Vacuum Metallurgy and Thermal Engineering • Previous Articles     Next Articles

Liquid Metal Cooling Furnace for Large-Sized Single Crystal Blades

SONG Jingsi1, WANG Fu2, JIA Shi3, CHEN Jiuqiang1, SUN Zulai1   

  1. 1. Shenyang Vacuum Technology Institute, Shenyang 110042, China;
    2. Xi'an Jiaotong University, Xi'an 710049, China;
    3. AECC Shenyang Liming Aero-Engine Co., Ltd., Shenyang 110043, China
  • Received:2024-08-14 Online:2025-01-25 Published:2025-02-10

Abstract: With the rapid progress of the gas turbine, the demand for large-sized single crystal blades has increased significantly. However, there are obvious shortcomings in the preparation of large-size single crystal blades by traditional HRS method. Liquid metal cooling ( LMC ) method may be the first choice for the preparation of large-size single crystal blades in the future. In this context, this article first introduces the common structural forms, technical characteristics and current usage status of single crystal furnaces. Then, the shortcomings of existing single crystal furnaces in the preparation of large blades are elaborated. Finally, the technical characteristics of the new liquid metal cooled single crystal furnace and the future development prospects of this type of equipment are introduced.

Key words: LMC, single crystal furnace, directionally solidified, precision casting, gas turbine, blade

CLC Number:  TF341.7

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