What is a tube furnace？

A tube furnace is a heating equipment with a specific structure and function. The following is a detailed introduction to tube furnaces:

1、 Basic concepts
A tube furnace is a heating equipment with a tubular structure in the furnace, usually composed of furnace tubes, heating elements, control systems, and auxiliary equipment. The furnace tube is the main body and is often made of high-temperature and corrosion-resistant materials, such as quartz, ceramics, or metals.

2、 Structural composition
Shell: Usually made of materials such as stainless steel or aluminum alloy to ensure its corrosion resistance and strength.
Insulation layer: an isolation layer set up to reduce the loss of energy.
Heating device: It is the core part that generates high temperature, and common ones include resistance wires, silicon carbon rods, silicon molybdenum rods, etc.
Control system: used to precisely control the temperature inside the furnace, ensuring the stability and safety of the heating process. The system can accurately set the temperature and adjust the heating power as needed.

3、 Working principle
The working principle of a tube furnace mainly utilizes the diffusion combustion of gas and air to form a high-temperature flame, which heats the furnace and partition walls, and heats the gas itself to a very high temperature. On the one hand, this causes the furnace tube to be directly radiated by high-temperature gas and flames, and on the other hand, it plays a role in convective conduction heating through the influence of gas flow infiltration.

4、 Application field
Tube furnaces are mainly used in the following fields:
Metallurgy: used for heat treatment processes such as heating, annealing, quenching, and tempering of metals.
Glass: Used for sintering and melting glass in glass manufacturing.
Heat treatment: used for material heat treatment in multiple industries, such as the preparation of lithium battery positive and negative electrode materials.
New energy: In the field of new energy, such as the manufacturing of solar cells, it is used for material heat treatment.
Grinding tool: used for heat treatment of grinding tools to improve their hardness and wear resistance.

5、 Advantages and characteristics
Efficient and energy-saving: Adopting advanced heating technology and optimized furnace structure, the thermal efficiency is high.
Uniform heating: The furnace temperature has high uniformity, ensuring product quality.
Safe and reliable: equipped with various safety protection devices to ensure the safe and stable operation of the equipment.
Easy to operate: The operation interface is concise and clear, making it easy to operate.
Widely applicable: suitable for multiple industries and fields, meeting the heating needs of different materials.

In summary, tube furnace is a powerful and widely used heating equipment, playing an important role in the industrial field.