What are the advantages of high fidelity air quenching furnace?
11-18-2025 Author: KJ technology
The high vacuum air quenching furnace has the following significant advantages:
1. No oxidation or decarburization, excellent surface quality
Heat in a vacuum environment (10 ⁻² Pa~10 ⁻⁴ Pa) to completely isolate impurities such as oxygen and water vapor, avoiding surface oxidation or decarburization of the workpiece. After treatment, the surface is bright and clean, without the need for subsequent polishing, sandblasting, or cleaning, directly meeting the requirements of precision assembly. For example, the surface roughness of automotive transmission gears can be reduced after treatment, significantly improving assembly accuracy.
2. Uniform cooling and precise deformation control
Using high-pressure inert gas for forced convection cooling, the cooling rate is close to oil quenching but more uniform. By implementing the strategy of "low voltage start-up+gradual pressure increase", stress concentration can be significantly reduced, especially suitable for complex structures such as thin-walled and sharp corners. For example, the radial deformation of the turbine disk of an aircraft engine is reduced after treatment, meeting the requirements of high-precision assembly.
3. Material performance enhancement and significant improvement in lifespan
Vacuum degassing can remove micro pores inside the workpiece and improve material density. For example, after treatment, the hardness of mold steel is increased, the impact toughness is improved, and the service life is extended; Titanium alloy components can accurately control the precipitation morphology of alpha phase through gas quenching process, and the fatigue life can exceed 1 × 10 ⁷ cycles.
4. Flexible craftsmanship and adaptability to diverse materials
By adjusting the gas type (nitrogen, argon, helium), pressure (0.8-20bar), and flow rate, the quenching needs of different materials can be met:
Structural steel: 2MPa nitrogen quenching achieves high surface hardness and high core hardness.
High speed steel: The helium cooling rate reaches 100 ℃/s, enhancing its red hardness.
Titanium alloy: High vacuum environment avoids loss of volatile elements and meets aerospace grade purity requirements.
5. Environmental protection and energy conservation, reducing operating costs
Equipment equipped with a gas recovery system can reduce nitrogen consumption, eliminating the cost of quenching oil procurement and waste liquid treatment.
6. Intelligent control improves production efficiency
Equipped with PLC/intelligent control system to achieve precise temperature control, automatic inflation and deflation, and reduce human error.
7. Widely applied in various fields, covering high-end manufacturing
Aerospace: Processing key components such as nickel based high-temperature alloy turbine discs and titanium alloy casings to eliminate casting segregation defects and improve durability.
Automotive industry: After processing precision parts such as transmission synchronizers, differential planetary gears, etc., the thermal distortion control is precise, and the qualification rate is significantly improved.
Medical equipment: The surface finish of stainless steel precision parts after processing reaches mirror level, meeting sterile requirements.
