Application of RVGQ-557 Vacuum Gas Quenching Furnace—Gas Quenching and Tempering

2026-09-18 09:50

The vacuum gas quenching furnace is a piece of equipment used for the heat treatment of metal materials, widely applied in sectors such as aerospace, automotive manufacturing, and mold making. Integrating vacuum and gas-cooling technologies, the system operates by heating metal materials in a vacuum environment and subsequently rapidly cooling them through the injection of an inert gas (typically nitrogen or argon).

Additionally, the RVGQ-557 model is capable of performing vacuum tempering when the necessary vacuum conditions are met. To further enhance the quality and efficiency of the tempering process, the furnace is equipped with a high-performance circulation fan and an advanced partial pressure system. During the tempering heating phase, high-purity nitrogen can be precisely introduced to establish a specific working partial pressure; this utilizes the principle of convective heat transfer to significantly accelerate heating rates and improve thermal conductivity within low-to-medium temperature ranges. Throughout this process, the system effectively minimizes temperature fluctuations and heat loss. The circulation fan forces the protective gas to create a powerful, uniform convective flow, thereby eliminating the localized temperature disparities or “dead zones” often found in conventional vacuum furnaces. This ensures a highly uniform temperature distribution throughout the furnace chamber and allows for perfectly synchronized heating across all parts of the workpiece, resulting in superior consistency in the tempered microstructure, stable hardness, and enhanced overall mechanical properties—thereby meeting the most rigorous heat treatment standards.

SIMUWU RVGQ-557 vacuum gas quenching furnace equipped with an integrated control system for gas quenching and convective tempering.

The following are the specific technical specifications for SIMUWU RVGQ-557:

Furnace Type	RVGQ-557 (6 Bar) Horizontal type,single chamber, internal recycle
Loading method	Front Loading
Max. Loading size	500×500×700(W×H×L mm)
Max. Loading weight	400kg (Including Jig)
Power supply	3 Phase, 380V(±5%); 50Hz
Installed power	220 kw
Heating power	180 kw
Water-cooling motor power	132 kw
Max design temp.	1350℃
Typical Working temp.	980-1030℃ 180-350℃ (Tempering)
Temperature uniformity	9 Points temp testing ± 5℃
Temperature controller accuracy	S Type thermocouple ± 1℃
Quantity of heating zones	1-Zone independent temperature control
Heating element	High-temp molybdenum
Heating rate (empty furnace from room temp. to 1200℃)	0 ~ 20 ℃/min (speed adjustable)
Ultimate vacuum	6.7*10-3 Pa(cold empty furnace condition, after fully drying the furnace)
Working vacuum	1.0*10-2 Pa
Time to working vacuum	≤ 45min(After preheating the diffusion pump, cold empty furnace condition)
Pressure rising rate	≤ 0.67 Pa/h (cold empty furnace condition)
Cooling method	Gas cooling/Natural cooling
Cooling air	Nitrogen/Argon (purity: 99.99% or 99.999%)
Cooling rate(1000℃~200℃)	≤ 6 min
Partial pressure	1-1000 mbar Manual and automatic pressure control
Temp. control method	Intelligent programmable temperature controller
Operate method	PLC Automatic/Manual Interlock Protection Control
Equipment color	Customized