China OQ Vacuum Oil Quenching Furnace - High-Quality Suppliers and Factory Equipment for Precision Hardening
Characteristic 01
Heat the workpiece in vacuum (10-2~10-6 mbar) under different vacuum or low pressure inert gas environment to avoid surface oxidation and decarbonization and ensure material purity and finish.
Multi-zone independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy.
The heating chamber is covered with molybdenum plate, resistant to high temperature and high pressure airflow erosion, long service life, can meet a variety of process requirements, to achieve bright tempering process.
Dual chamber furnace with both heating chamber and gas cooling chamber, not affected by quenching oil, gas cooling, gas cooling pressure (87kPa abs.).
Adjustable cooling speed, by controlling the oil stirring speed, oil surface pressure and quenching oil temperature, adapt to the cooling needs of different materials, reduce the risk of deformation and cracking.
Vacuum slow cooling + oil quenching stage control (such as pre-cooling quenching), the deformation is better than the traditional oil quenching furnace.
Integrated condenser and activated carbon filter device, quenching oil mist recovery rate > 95%, in line with the prevailing environmental standards.
Integrated PLC, with program controller or computer interface, touch screen, recorder, real-time monitoring furnace vacuum, temperature, pressure, support remote fault diagnosis and process tracing.
Common specifications 02
| Model number | OQ-300 |
| Effective working area dimension: Width × height × length (mm) | 490 × 400 × 800 |
| Temperature | Maximum 1320℃ / normal operating temperature 540 ~ 1280℃ |
| Gas cooling pressure | 87kpa abs |
| Tank capacity (L) | 3800 |
| Handling weight approx. (Kg) | 300 |
| Installed power (KW) | 185 |
Frequently Asked Questions FAQ
How does the furnace prevent oxidation during heating?
The workpiece is heated in a high vacuum (10-2~10-6 mbar) or under a low-pressure inert gas environment. This effectively avoids surface oxidation and decarbonization, ensuring the purity and surface finish of the material.
What is the temperature uniformity and control accuracy of the furnace?
It features multi-zone independent temperature control combined with a PID algorithm to achieve a furnace temperature uniformity of ±5℃, providing precise temperature control throughout the process.
What are the specifications of the OQ-300 model?
The OQ-300 model has an effective working dimensions of 490×400×800 mm, a maximum temperature of 1320℃ (operating range 540~1280℃), a 3800L tank capacity, and can handle a weight of approximately 300 kg with an installed power of 185 KW.
How does the cooling system reduce workpiece deformation?
Deformation is minimized using vacuum slow cooling combined with oil quenching stage control (such as pre-cooling quenching). The cooling speed is adjustable by controlling the oil stirring speed, surface pressure, and quenching oil temperature.
Is this vacuum furnace environmentally friendly?
Yes. The furnace includes an integrated condenser and an activated carbon filter device, achieving a quenching oil mist recovery rate of over 95%, which complies with prevailing environmental standards.
Can the furnace operation be monitored and diagnosed remotely?
Yes, it features an integrated PLC with a program controller, computer interface, touch screen, and recorder. This system monitors furnace vacuum, temperature, and pressure in real-time, supporting remote fault diagnosis and process tracing.