In response to the welding needs of aluminum alloy parts of spacecraft, Hubei Wanrunda customized a high-purity argon (O₂≤1ppm) solution, and achieved a stable output with a pressure fluctuation of ≤0.5% through an intelligent gas cylinder cabinet to avoid weld oxidation. Supporting valve accessories and pipeline purge services reduce the welding porosity from 0.8% to 0.05%, meeting the 100% non-destructive testing standards for aerospace-grade materials, and helping the key components of the Long March series rocket fuel tanks to achieve a one-time pass rate of 100%.
