When choosing a multi gas path tube furnace, multiple factors need to be considered to ensure that the selected equipment can meet the specific needs of the experiment or production. Let's take a look at what aspects to pay attention to when choosing a multi gas path tube furnace!

Commonly used multi gas path rotary tube furnace (click on the image to view product details)

1. Temperature range and accuracy
Temperature range: Select a tube furnace with an appropriate temperature range based on the high or low temperature environment required for the experiment. The common working temperature range of CVD tube furnaces is between 800 ℃ and 1600 ℃, and some high-end equipment can even reach 1700 ℃.
Temperature accuracy: High precision temperature control is important for the reproducibility of experimental results. Therefore, a tube furnace with high-precision temperature control system should be selected, such as equipment using PID automatic control, thyristor (thyristor) output power, 30 segment programmable controller and other technologies.

2. Furnace tube size and material
Furnace tube size: Select the appropriate furnace tube size based on the size and shape of the experimental sample. The common outer diameters of furnace tubes include Φ 60, Φ 80, Φ 100, etc., and the length is usually within 1000mm.
Furnace tube material: There are generally two types of furnace tube materials: stainless steel and quartz glass. Stainless steel is corrosion-resistant and suitable for various experimental environments; Quartz glass does not hinder the observation of experimental processes, but its price is relatively high.

3. Heating zone and constant temperature zone
Heating zone: The heating zone determines the heating range inside the furnace tube, and the appropriate length of the heating zone should be selected according to experimental needs.
Constant temperature zone: The constant temperature zone determines the area of temperature uniformity. For experimental samples that require uniform heating, a tube furnace with sufficient constant temperature zone should be selected.

4. Gas supply system
Multi gas path supply: Experimental multi gas path tube furnaces require a good multi gas path supply system to achieve the mixing of two or more gases or vapors in a certain proportion and their introduction into the high-temperature furnace.
Flow meter: The gas supply system should be equipped with multiple flow meters, such as float flow meters and mass flow meters, to accurately control the intake air volume.

5. Mixing device
Choose a tube furnace with an efficient gas mixing device to ensure the uniformity and stability of gas mixing. This is important for experiments that require precise control of the atmosphere.

6. Vacuum system
Choose a suitable vacuum system based on the required vacuum level and cleanliness for the experiment. Common vacuum systems include low vacuum systems and high vacuum systems. Low vacuum systems generally include rotary vane pumps, slide valves, dry pumps, etc., while high vacuum systems generally include molecular pumps, diffusion pumps, and other equipment.
Choose a tube furnace equipped with a vacuum gauge to monitor the vacuum status inside the furnace in real-time.

7. Control System and Operating Interface
Control system: Choose a tube furnace with a good control system and human-machine interface, such as touch screen control, remote monitoring, etc., to improve the convenience and safety of operation.
User interface: A user-friendly interface can simplify the operation process and reduce the difficulty of operation.

8. Security performance
Consider the safety performance of tube furnaces, such as overheat protection, leakage protection, emergency shutdown and other safety devices. These safety devices can protect the safety of equipment and operators in emergency situations.

9. Brand and after-sales service
Brand selection: Choose a tube furnace manufacturer with a good reputation to ensure the quality and stability of the equipment.
After sales service: Understand the manufacturer's after-sales service policy, including support for installation and commissioning, technical training, maintenance, and other aspects. Good after-sales service can ensure timely and effective maintenance and support of equipment during use.

Customized production type multi gas path rotary tube furnace (click on the picture to view product details)

In general, when choosing a multi gas path tube furnace, multiple factors need to be considered, including temperature range and accuracy, furnace tube size and material, heating zone and constant temperature zone, gas supply system, mixing device, vacuum system, control system and operation interface, safety performance, as well as brand and after-sales service. By considering these factors comprehensively, a tube furnace equipment that is more suitable for one's own experimental or production needs can be selected.Click to learn more tube furnaces! Or click on online customer service to learn more about product information!