Vacuum Heating Degassing Machine

The Vacuum Heating Degassing Machine combines both thermal degassing (copper block heating to ≤300°C) and vacuum degassing in a single production machine — achieving a more complete NCG removal than either process alone. The thermal stage drives free NCG and working fluid vapour out of the pipe through heating-induced expansion; the vacuum stage simultaneously or sequentially removes residual NCG to a lower residual level than thermal degassing alone can achieve. The result: the efficiency and throughput of thermal degassing with the NCG completeness approaching vacuum-only degassing. Servo motor controls riveting position. U-shaped riveting. ±0.5mm fixed-length tolerance. 5 workstations. 500 pcs/hr. Pipe OD Ø4–Ø10mm, wall 0.1–0.5 mm.

Key Specifications

Combined Process Advantage — Why Thermal + Vacuum Outperforms Each Method Alone

The combined vacuum+heating degassing process exploits the complementary strengths of both methods. Thermal degassing is highly effective at removing free NCG at high throughput but leaves a residual of dissolved NCG in the working fluid that only releases at elevated operating temperature. Vacuum degassing achieves lower residual NCG levels but requires more time per cycle at the fine vacuum stage, reducing throughput. The combination — heating while under vacuum — simultaneously drives NCG out of solution (thermal effect) and removes it through the vacuum port (pressure differential effect). This synergy means the combined machine achieves lower residual NCG than thermal alone, with higher throughput than vacuum-only degassing at equivalent NCG removal depth. For heat pipes in demanding AI server, data centre, and high-performance laptop applications where both throughput and NCG completeness are required, the vacuum heating machine is the correct production configuration.

Production Line Position — Where This Machine Fits in the Heat Pipe & Thermal Solution Manufacturing Sequence

The heat pipe degassing station sits at Step 5 in the complete 11-step heat pipe production sequence — after working fluid injection and before welding/sealing at Step 6. It is the quality gate that determines the internal vacuum quality and working fluid charge accuracy of every heat pipe that proceeds to welding, hot pressing, bending, and performance testing. A heat pipe that leaves the degassing station with incorrect NCG level or working fluid volume cannot be corrected at any downstream step.