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VACUUM ›› 2025, Vol. 62 ›› Issue (4): 15-21.doi: 10.13385/j.cnki.vacuum.2025.04.03

• Measurement and Control • Previous Articles     Next Articles

Research on the Performance of a 60 Degree Cone Seal Structure under 1 200 MPa Condition

YAN Zeen1, MA Zihao1, LIU Geliang1, LI Guanzhuo1, ZHANG Yuhang1, PANG Guibing1, GAO Hang2, TONG Qiang1   

  1. 1. School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian 116034, China;
    2. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
  • Received:2024-11-26 Online:2025-07-25 Published:2025-07-24

Abstract: To investigate the sealing performance of a 60° cone seal structure under 1 200 MPa high-pressure condition, simulation analysis was conducted using ANSYS Workbench software to obtain the contact pressure distribution on the sealing surface. Sealing performance experiments were then carried out under a 1 200 MPa oil medium load using different material combinations. The experiment employed a “soft-hard” material combination of 316L and Cr12MoV, with varying tightening torques to test the sealing effect. The results show that this material combination maintains excellent sealing performance and no leakage under ultra-high pressure. A tightening torque greater than 180 N·m is required for stable sealing, and the difference in material hardness plays a significant role in enhancing sealing reliability and service life. This structure demonstrates good application potential in high-pressure environments and is suitable for critical equipment requiring ultra-high pressure sealing.

Key words: ultra-high pressure, 60 degree cone seal, sealing performance, quantitative evaluation

CLC Number:  TH136

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