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Since its establishment, Kunhong Technology has always focused on innovation and manufacturing in the fields of vacuum and metal pressure vessels. It has achieved remarkable results in the research and development of vacuum application equipment, vacuum acquisition equipment, non-standard vacuum equipment, and pressure vessel products.
Why choose us
Solution
We are committed to providing high-performance and high-quality solutions. From design to production, Kunhong Technology strictly controls every aspect and provides customers with diverse and personalized products to meet different needs, winning high recognition from users.
Widely used
Our products are widely used in aerospace, new energy vehicles, power, metallurgy, petrochemical, shipbuilding, military and other high-end fields, providing strong support for the development of related industries.
Customer Service
Our customer service team is committed to providing exceptional support and addressing any concerns promptly. We prioritize clear communication and proactive problem-solving to ensure a seamless experience for every client.
Oxidation Prevention
One of the most significant benefits of using a vacuum annealing furnace is the prevention of oxidation. In a normal atmospheric environment, when metals are heated during the annealing process, they react with oxygen in the air, forming oxides on the surface. These oxides can cause discoloration, reduce the surface quality, and even affect the mechanical properties of the material.
Improved Material Purity
Vacuum annealing also helps to improve the purity of the materials being treated. During the heating process in a vacuum, volatile impurities such as gases and low - melting - point metals can be removed from the material. These impurities can have a detrimental effect on the material's properties, including its strength, ductility, and electrical conductivity.
Uniform Heating
Another advantage of vacuum annealing furnaces is their ability to provide uniform heating. The design of these furnaces allows for precise control of the temperature distribution within the chamber. The heating elements are carefully arranged to ensure that all parts of the workpiece are exposed to the same temperature, eliminating temperature gradients that can cause uneven annealing.
Fine Grain Structure
A vacuum annealing furnace can promote the formation of a fine grain structure in metals and alloys. During the annealing process, the material is heated to a specific temperature and then cooled at a controlled rate. In a vacuum environment, the reduced presence of contaminants and the uniform heating conditions allow for better control of the recrystallization process.
Energy Efficiency
Vacuum annealing furnaces are also relatively energy - efficient compared to some other types of annealing furnaces. Since the vacuum chamber reduces heat loss through convection and radiation, less energy is required to maintain the desired annealing temperature. Additionally, the precise temperature control in these furnaces allows for more efficient use of energy, as the heating elements can be accurately adjusted to provide only the necessary amount of heat.
Versatility
Vacuum annealing furnaces are highly versatile and can be used to anneal a wide range of materials, including ferrous and non - ferrous metals, alloys, and even some ceramics. Different materials require different annealing parameters, such as temperature, time, and cooling rate. Vacuum annealing furnaces can be easily programmed to accommodate these specific requirements.
Reduced Distortion
The vacuum annealing process can help to reduce distortion in the annealed parts. When metals are heated and cooled, thermal expansion and contraction occur. In a normal atmosphere, uneven heating and cooling can cause internal stresses in the material, leading to distortion.
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Main data parameters of vacuum annealing furnace |
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|
Model |
Average temperature zone sizeimension of work zone |
Maximum temperature |
Ultimate pressure |
Pressure rise rate |
Temperature uniformity |
Loading volume |
|
RVST-448G |
400×400×800 |
1300 |
2×10-3 |
0.5 |
±5 |
300 |
|
RVST-459G |
450×450×900 |
1300 |
2×10-3 |
0.5 |
±5 |
500 |
|
RVST-669G |
600×600×900 |
1300 |
2×10-3 |
0.5 |
±5 |
800 |
|
RVST-6612G |
600×600×1200 |
1300 |
2×10-3 |
0.5 |
±5 |
1000 |
|
RVST-7712G |
700×700×1200 |
1300 |
2×10-3 |
0.5 |
±5 |
1500 |
|
RVST-8812G |
800×800×1200 |
1300 |
2×10-3 |
0.5 |
±5 |
1500 |
|
RVST-2TG |
1100×1000 |
1300 |
2×10-3 |
0.5 |
±5 |
2000 |
Vacuum Furnace Chamber: Ceramic fiber, molybdenum, or graphite, designed to withstand high temperatures and vacuum conditions.
Heating System: Electric resistance heating elements including heating wires, SiC heating elements, and Mosi2 heating elements. Molybdenum or graphite heating elements.
Vacuum System: Mechanical pump, Diffusion pump, Molecular pump.
Control System: Temperature control: PID or PLC control.
Process automation: Programmable cycles, data logging, data export.
Pressure monitoring.（if needed)
Cooling System: Water cooling jacket.
Gas cooling system. (if needed)
Power conditions: Three-phase 380V (±6%); 50Hz.
Cooling water requirements: Inlet pressure 0.1～0.2MPa; temperature ≤30℃; pH value approximately 7; water quality should be soft, without sediment and impurities; flow rate 40T/h.
Environmental conditions: Ambient temperature should be above 0°C and below 35°C; ambient relative humidity should be ≤95% (25°C); altitude below 1000m.
Compressed air (power air source): Pressure 0.4～0.6MPa.
Installation method: Ground installation.
As one of the leading vacuum annealing furnace manufacturers in China, we warmly welcome you to wholesale high-grade vacuum annealing furnace made in China here from our factory. All customized products are with high quality and low price.
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