What is an atmosphere furnace?

An atmosphere furnace is a special type of heating furnace mainly used for heat treatment of materials under specific atmospheres. The following is a detailed explanation about the atmosphere furnace:

definition:
An atmosphere furnace, also known as an oxygen free annealing furnace, vacuum atmosphere sintering furnace, etc., is a device that introduces a certain amount of gas into the furnace for sintering. This method is suitable for different materials, and by selecting the appropriate atmosphere for sintering, it can assist the sintering process, improve the densification degree of the product, and thus obtain products with good performance.

Type:
There are various types of atmosphere furnaces, which can be classified based on the atmosphere inside the furnace. Common atmospheres include exothermic, endothermic, organic liquid cracking, nitrogen-based, ammonia preparation, charcoal preparation, and hydrogen gas.

Ingredients and uses:
The atmosphere composition in the atmosphere furnace can be adjusted as needed. For example, a light type exothermic atmosphere is commonly used for steel oxidation treatment, while a thick type exothermic atmosphere is suitable for processes such as bright annealing, sintering, and brazing. Different atmosphere components play an important role in improving the quality and performance of products.

Technical principles:
The main technical principle of an atmosphere furnace is to introduce a certain amount of artificially prepared atmosphere into the furnace at a predetermined temperature, in order to achieve a certain heat treatment purpose. These heat treatment processes include gas carburization, carbonitriding, bright quenching, annealing, and normalizing.

characteristic:
The atmosphere furnace has a high degree of sealing to maintain the stability of the atmosphere inside the furnace and control the pressure inside the furnace. Meanwhile, it is equipped with an atmosphere control system that can automatically adjust the composition and stability of the atmosphere inside the furnace.
The heating methods of atmosphere furnaces are divided into two types: muffle furnace and non muffle furnace. The muffle furnace adopts indirect heating method, while the non muffle furnace separates the flame or electric heating element from the furnace gas through flame radiation tubes or electric radiation tubes to maintain the stability of the atmosphere inside the furnace.
The atmosphere furnace is also equipped with explosion-proof devices to prevent explosions caused by the mixture of reducing gas and air reaching a certain mixing ratio.

Application:
Atmosphere furnaces are widely used in industries such as mechanical manufacturing, metal processing, and ceramic manufacturing. It can not only improve the quality and performance of products, but also reduce production costs and energy consumption.

In summary, an atmosphere furnace is a device that performs material heat treatment under specific atmospheres, with various types and characteristics, and is widely used in various industries.