Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Effect of tightening torque on sealing structural leakage rate of copper backing
| DOI: | 10.11809/bqzbgcxb2025.01.025 |
| Keywords: | sealing structure of copper backing; tightening torque; sealing property; compaction force |
| Abstract: | Based on theoretical analysis, the sealing performance under different tightening torques was studied for the optimization design of copper backing sealing structure. The experiments results show that the compaction force under low torque condition tends to produce weak deformation of copper backing, while that under excess torque condition tends to generate inner plastic deformation with damage. The actual applied tightening torque during the assembly of the sealing structure should be 90% to 95% of the upper limit value. At this point, the deformation degree of copper backing can promote cooperation between sealing surfaces and ensure low leakage rate. This paper may provide theoretical and experimental basis for the application of metal rigidity sealing structures, further improving the stability and reliability of high pressure products. |
| Issue: | Vol. 46 No. 1 (2025) |
| Published: | 2025-01-31 |