China PQS Small Vacuum Furnace for Quenching and Annealing - Top Suppliers & Factory Solutions
Characteristic 01
Heat 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 FAQ
Q What is the temperature uniformity of this vacuum gas quenching furnace?
The furnace achieves a high temperature uniformity of ±5℃. This is accomplished through partition independent temperature control combined with a PID algorithm, ensuring excellent temperature control accuracy.
Q What cooling media and pressures are supported?
The cooling system supports nitrogen and argon (optional) as cooling gas media. The standard gas cooling pressure is 0.87 to 2.8 bar abs, with maximum support up to 10 bar abs, combined with a high-speed fan for controllable cooling speed.
Q What are the benefits of low pressure gas quenching compared to oil or water quenching?
Compared to traditional oil or water quenching, low pressure gas quenching technology significantly reduces workpiece deformation and residual stress. This makes it ideal for handling small, thin-walled, or complex-shaped parts.
Q What materials are used for the heating chamber construction?
The heating chamber features either a graphite composite material or an all-metal structure (incorporating molybdenum heating elements and metal heat insulation screens) to withstand high temperatures and high-pressure airflow for a prolonged service life.
Q Can the technical specifications of the furnace be customized?
Yes, we support full customization of key parameters including the effective working area size, maximum temperature, working vacuum level, and gas cooling pressure according to your specific production requirements.