China PQS Small Vacuum Furnace Suppliers | High Precision Air Quenching Furnace Factory for Advanced Material Treatment
characteristic
01Heat the workpiece under different vacuum (10-2~10-6 mbar) to avoid surface oxidation and decarbonization and ensure the purity and finish of the material.
Partition independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy.
Through different cooling inert gas (nitrogen, argon, helium) and under different cooling pressure, combined with high-speed fan to quickly cool the workpiece, cooling speed is controllable.
The heating chamber is made of graphite composite material or all-metal structure (such as molybdenum heating elements and metal heat insulation screen), which is resistant to high temperature and high pressure airflow and has a long service life.
Low pressure gas quenching technology, compared with oil quenching or water quenching, reduce deformation and residual stress, suitable for small thin wall or complex shape parts.
Support heating, insulation, cooling multi-stage automatic control, can be preset complex heat treatment process.
Integrated PLC, with program controller or computer interface, touch screen, recorder and other real-time monitoring furnace vacuum degree, temperature, pressure and other data, support remote fault diagnosis and process tracing.
The whole equipment adopts miniaturized structure design, suitable for laboratory or small batch production, optimize space utilization, low energy consumption, flexible operation and so on.
Common specifications
02| Model number | PQS-23 | PQS-34 | PQS-42 | |||||||||
| Effective working area dimension: Width × height × length (mm) | 230×200×400 | 340×220×420 | 420×400×650 | |||||||||
| Working vacuum | 10-1~10-6mbar (optional) | |||||||||||
| Temperature | Maximum 1320℃ / normal operating temperature 540~1280℃ | |||||||||||
| Cooling gas medium | Nitrogen, Argon (optional) | |||||||||||
| Gas cooling pressure | 0.87~2.8 bar abs, Maximum support 10 bar abs (optional) | |||||||||||
| Handling weight approx. (Kg) | 30 | 60 | 180 | |||||||||
| Installed power (KW) | 70 | 75 | 80 | |||||||||
Frequently Asked Questions
What level of vacuum and temperature uniformity can these furnaces achieve?
The furnaces operate under vacuum levels ranging from 10-2 to 10-6 mbar. By combining partition independent temperature control with a PID algorithm, they achieve a furnace temperature uniformity of ±5℃.
What are the cooling media options and maximum cooling pressure supported?
The system supports inert gases such as Nitrogen and Argon (with Helium also optional). The standard cooling pressure is 0.87 to 2.8 barabs, with customization options supporting up to 10 barabs.
What materials are used in the construction of the heating chamber?
The heating chamber features either a graphite composite material or an all-metal structure containing molybdenum heating elements and metal heat insulation screens, engineered to resist high temperatures and high-pressure airflows.
Why is low pressure gas quenching preferred over oil or water quenching?
Low pressure gas quenching significantly reduces deformation and residual stresses during heat treatment, making it highly suitable for small, thin-walled, or complex-shaped parts.
Can the technical specifications and working dimensions be customized?
Yes. We support custom configurations for the effective working area dimensions, maximum operating temperature, working vacuum levels, gas cooling pressure, and other parameters tailored to your production demands.