How to choose vacuum sintering furnaces for experiments?

When choosing a vacuum sintering furnace for experiments, multiple factors need to be considered to ensure the selection of high-quality equipment that meets the experimental requirements. Let’s take a detailed look below!

Commonly used graphite vacuum sintering furnace (click on the image to view product details)

Temperature range and uniformity:
It is necessary to measure at different temperature points, such as 300 ℃, 600 ℃, 900 ℃, 1400 ℃, etc. It is not enough to measure only one high temperature zone, because the heating electrode of the furnace is different at different temperature states.
The uniformity of the temperature zone inside the furnace is important for the experimental results, and it is necessary to ensure that the temperature distribution inside the furnace is uniform within the required temperature range.

Heating element material and wiring method:
The material of the heating element should be high-quality materials such as high-purity graphite to ensure good heating efficiency and stability.
The wiring method should be safe and reliable, with good insulation materials, and the wiring structure should not easily cause short circuits.

Vacuum degree and leakage rate:
It is necessary to consider the ultimate vacuum degree and leakage rate, which are related to the sealing of the furnace and other issues. At the same time, the vacuum degree is closely related to the heating rate. Under ideal conditions that ignore vacuum chamber leakage and material deflation, the vacuum chamber pressure is closely related to the heating rate.
The time required to reach the ultimate vacuum is also a consideration when purchasing equipment, as it relates to the quality of mechanical pumps and Roots pumps.

Heating and cooling rates:
The speed of heating is related to whether the selection of thermocouples is reasonable, and also reflects the quality of thermocouples.
The cooling rate (production efficiency) from high temperature to room temperature and the presence or absence of rapid cooling devices are also factors that need to be considered.

Special gas compliance:
If certain process gases need to be introduced during the experiment, the vacuum sintering furnace must meet this requirement.

Vacuum gauge specifications:
Some vacuum gauges are not resistant to pollution and may malfunction, so it is necessary to choose the appropriate vacuum gauge specifications according to experimental needs. Vacuum gauges generally include digital vacuum gauges and mechanical vacuum gauges.

After-sale service:
Comprehensive after-sales service is an important guarantee for ensuring the long-term stable operation of equipment. We need to choose a manufacturer that provides comprehensive after-sales service and can respond and solve problems in a timely manner.

Security:
Safety is an important factor that cannot be ignored when choosing a vacuum sintering furnace. It is necessary to ensure that the equipment has comprehensive safety protection measures, such as setting up safety warning signs and equipping emergency facilities. At the same time, operators also need to receive relevant safety training to ensure that they can use the equipment correctly and safely during the experimental process.

Price and Budget:
Price is an important factor to consider when choosing equipment. It is necessary to choose a suitable vacuum sintering furnace based on experimental requirements and budget. At the same time, it is also important to avoid blindly pursuing low prices while neglecting the quality and performance of the equipment.

Industrial vacuum furnace (click on the image to view product details)

In general, when choosing a vacuum sintering furnace for experiments, multiple factors need to be considered comprehensively, including temperature range and uniformity, heating element material and wiring method, vacuum degree and leakage rate, heating and cooling speed, special gas compliance, vacuum gauge specifications, after-sales service, and safety. By comprehensively evaluating these factors, high-quality vacuum sintering furnaces that meet experimental requirements can be selected.Click to learn more Vacuum Furnaces! Or click on online customer service to learn more about product information!