The QHM series vacuum furnace supports diamond brazing, metal-to-metal brazing, metal-to-non-metal brazing, and vacuum annealing. Ideal for heat treatment requiring high vacuum. Pure metal chamber ensures zero oxygen release at high temperature, maintaining excellent vacuum.
Structure: Separate double-shell design with circulating insulation. High-quality stainless steel with anti-rust treatment and electrostatic coating, compliant with international lab standards.
Hot zone: 4-layer molybdenum foil (internal) and 3-layer stainless steel (external). No volatile emissions at high temperature, meeting international industry standards.
Heating element: High-quality Mo-La alloy heater with annular design for excellent temperature uniformity, heating workpieces uniformly from multiple directions.
Auto operation: One-touch start after programming. Fully automatic from heating to cooling — no operator attendance required.
Alarm: Automatic alarm and protection upon abnormal over-temperature detection during operation.
Monitoring: Power and heating indicator lights on control panel for real-time status monitoring.
Safety: Circuit breaker on side panel. Pneumatic breaker auto-activates on short circuit or leakage to prevent injury and equipment damage.
| Model | QHM-7714 |
|---|---|
| Chamber size (WHD) | 700x700x1400mm |
| Max temperature | 1300°C (within 2 hours) |
| Working Temp. | ≦ 1200 ℃ |
| Voltage and rated output | ● Standard: Input 380V, 3-phase Heating: 260kW / Total: 285kW ● For 220V 3-phase conversion: Heating: 300kW / Total: 325kW ● Note: Equipped with dedicated 380V to 220V transformer for 220V 60Hz user environments. |
| Temperature control accuracy | ± 1 ℃ |
| Temperature uniformity | ± 5 ℃ |
| Heating rate (recommended) | ● Below 1000°C: ≤20°C/min recommended ● 1000°C-1300°C: ≤15°C/min recommended |
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