what is the tube furnace working principle?
The working principle of the tube furnace mainly includes the following aspects:
The tube furnace is mainly composed of a furnace body, heating elements, furnace tubes, a temperature control system and a gas circulation system.
The heating elements are usually distributed around the furnace tubes. Common heating elements include resistance wires, silicon carbon rods, etc. When current passes through the heating elements, they generate a large amount of heat energy.
This heat energy is transferred to the furnace tubes by radiation and convection. The materials that need to be heated are placed inside the furnace tubes.
The temperature control system monitors the temperature in the furnace through thermocouples or other temperature sensors and feeds the temperature signal back to the controller. The controller adjusts the power output of the heating element according to the set temperature value, thereby accurately controlling the temperature in the furnace.
In some applications, the tube furnace is also equipped with a gas circulation system, which can introduce specific gases such as inert gas, reducing gas or oxidizing gas into the furnace to create a specific reaction atmosphere.
The material is heated in the furnace tube and undergoes physical changes, chemical reactions or heat treatment under the set temperature and atmosphere conditions, thereby achieving the desired treatment effect.
In general, tube furnaces provide a stable, controlled environment for material processing through precise temperature control and atmosphere regulation.