Vacuum Gas Quenching Furnace

Vacuum quenching refers to the smooth quenching of parts. The quenching and cooling of parts are carried out in the vacuum furnace, and the quenching medium is mainly gas (such as inert gas), water and vacuum quenching oil. Vacuum quenching has been widely used in the quenching of various steels, alloy tool steels, high-speed steels and stainless steels, as well as the solution treatment of various aging alloys and hard magnetic alloys.

There are two kinds of quenching in vacuum: gas quenching and liquid quenching. Gas quenching is when the workpiece is heated in a vacuum and then cooled by high-purity neutral gas (such as nitrogen) in the cooling chamber. High-speed steel and high carbon and high chromium steel are suitable for gas quenching. Liquid quenching is to heat the workpiece in the heating chamber, move it to the cooling chamber, fill it with high-purity nitrogen, and immediately send it to the quenching oil tank for rapid cooling. If high surface quality is needed, tempering and precipitation hardening after vacuum quenching and solution heat treatment should still be carried out in a vacuum furnace.

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Technical Data

1. Especially suitable for carburizing steel, stainless steel and air-cooling steel, more suitable for small holes, and blind holes.

2. Stainless steel can achieve excellent effects without removing passive film.

3. No black structure, reduce fatigue sources, greatly improve the life of parts.

4. It can be carburized at medium temperature and high temperature and high speed with high efficiency.

5. Precise vacuum low-pressure carburizing process, stable operation, good reproducibility.

6. The one-button intelligent control system can accurately control the surface carbon content, and the carburized layer depth is uniform.

Gas Quenching Vacuum Carburizing Furnace

Vacuum Gas Quenching Medium:

The cooling rate of vacuum air quenching is related to the type of gas, gas pressure, flow rate, furnace structure and loading condition. Available gases are Ar, He, H, and N,. Assuming that the heat transfer rate of air under the same conditions is 1, then Ar is 0.70, He is 6, H is 7, and N2 is 0.99.

Specifications

A Vacuum Gas Quenching Furnace is applied for quenching high-speed tool steel, measuring vacuum hardening and cutting steel, tool steel and other alloy steel, with a convection heating function, which can achieve the process of step hardening, isothermal quenching, but also tempering, annealing and other heat treatment process. Ultimate pressure: cooling gas,6Bar or 10Bar. The control system was controlled by PLC, temperature was controlled by an intelligent temp controller, accurate control, and high automation. Users can choose auto or manual undisturbed switching to operate it, this furnace has abnormal conditions and alarming function, easy to operate. The environmental protection performance of vacuum furnaces has been improved, with maintenance cost saving, energy cost savings.

Numbering	Model	Working Zone size(mm)	Capacity(kg)	Heating material	Cooling Gas	HeatingPower (KW)	Max temperature (℃)	Temperature uniformity（℃）	Limit vacuum degree (PA)	Air cooling pressure (bar)
VHG-446	VHGgr-40/40/60-1300	400x400x600	200	Graphite	N2/Ar	80	1300	±5	6x10-1Pa	10
VHG-669	VHGgr-60/60/90-1300	600x600x900	500	Graphite	N2/Ar	150	1300	±5	6x10-1Pa	10
VHG-8812	VHGgr-80/80/120-1300	800x800x1200	1000	Graphite	N2/Ar	240	1300	±5	6x10-1Pa	10
Remark: The working zone of equipment could be customized based on the customer's production.

The Vacuum Gas Quenching Furnace produced by Haoyue is a high-quality product for the vacuum air quenching process of the tool and mold. Good temperature control accuracy and uniformity ensure the effective progress of the vacuum air quenching process. Haoyue specializes in the manufacture of vacuum furnaces, has more than ten years of relevant experience, and has a good reputation in the field of vacuum furnace manufacturing. The product line includes vacuum annealing furnaces, vacuum oil quenching furnaces, vacuum brazing furnaces, etc., widely sold in developed and developing countries.

Contact us for more details like:

Furnace Body

Vacuum System

Heating System

Cooling System

Auxiliary System

Control System

We can also make some special designs according to your requirements. Our specialists are ready to determine with precision the best treatment adapted to your needs. Contact us!

Application

Bright quenching of alloy steel, high speed steel, die steel, bearing steel, elastic alloy, stainless steel and other materials;

Vacuum heat treatment of magnetic materials;

High temperature vacuum brazing and vacuum sintering.

Vacuum Gas Quenching Furnace Advantages:

/ Wide range of heat treatment processes and applications
/ High-speed cycles with high-pressure gas quench
/ Low consumption of energy, process gases, and other utilities
/ Environmentally friendly with low emissions of process gases
/ Simple design, modular, fitted and adjusted to tasks and plant conditions
/ Guaranteed quality and repeatable process results
/ Predictive maintenance
/ Remote control and monitoring
/ Fast delivery and simple installation
/ Customizable

Main Ingredients

#Diminishes distortions due to hardening and/or any other variation of distortion

#The controllable intensity of quenching via controlled gas pressure and gas velocity

#Flexibility in procedure

#Simplicity in procedure

#Involves non-toxic working conditions

#Integration into manufacturing lines

#Ultimate fine quenching results

#Easy maintenance