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1. Nitrogen acts as a protective gas: In a nitriding furnace, a high-purity nitrogen atmosphere can be formed by introducing nitrogen, effectively preventing the entry of oxygen and other gases, and avoiding adverse effects of impurities on the material's nitriding process. Meanwhile, nitrogen can also prevent oxidation reactions on the material surface during the nitriding process, improving the purity and effectiveness of nitriding.

 

2. Nitrogen provides reaction gas: In a nitriding furnace, nitrogen is usually mixed with other gases and used, for example, ammonia is introduced to form an ammonia atmosphere, which reacts with the material to form nitrides at high temperatures. Nitrogen, as a part of the reaction gas, participates in the gas reaction process and promotes the nitridation reaction of materials.

 

3. Nitrogen controlled atmosphere: In a nitriding furnace, by adjusting the flow rate and pressure of nitrogen, the composition and pressure of the atmosphere can be controlled, thereby adjusting the reaction conditions during the nitriding process, such as nitrogen concentration, oxygen concentration, temperature, etc., which have an impact on the rate, purity, and uniformity of the nitriding process.

 

Nitridation is a process of reacting a material with nitrogen gas to form a nitride layer on the surface of the material. This process can improve the hardness, wear resistance, corrosion resistance, and other properties of the material, thereby improving its performance and service life.

 

Gas nitriding furnaces have applications in many fields, such as metallurgy, material processing, electronic devices, etc. It can be used to prepare various nitride materials, such as silicon nitride, aluminum nitride, etc., in order to improve the performance and functionality of the materials.