Advantages and Application Scope of Gas Nitriding Heat Treatment

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Gas nitriding is a heat treatment process in which the workpiece is placed in a closed space, filled with nitrogen, ammonia and carbon dioxide, heated to 500-580°C and kept for several hours or tens of hours. By controlling the heat treatment time and temperature, to meet the technical requirements of different products.

The Role of Gas Nitriding

Make the surface of parts have high hardness and wear resistance. For example, a customer of Qingdao Fengdong Heat Treatment Co., Ltd. uses 38CrMoAl for construction machinery, and its surface hardness is between HV950-1200.

It can improve the anti-fatigue ability.

Improve the corrosion resistance of the workpiece. Because nitriding can form a dense and chemically stable epsilon phase layer on the surface of the workpiece. For example, Qingdao Fengdong’s heat-treated molds can not only improve the wear resistance and corrosion resistance, but also reduce the adhesion between the mold and the parts, thereby increasing the service life of the mold.

Before nitriding heat treatment, the workpiece is generally subjected to quenching and tempering heat treatment, so that a stable tempered sorbite structure can be obtained to ensure the final use performance of the part and the dimensional stability during use, and also to obtain a good nitride layer Prepare for the organization.

In recent years, the application of gas nitriding in molds, petrochemicals, automobiles, machine tools, tractors, etc. has been expanding. Therefore,   “SIMUWU” vacuum furnace heat treatment technology team is constantly exploring the research and development of gas nitriding heat treatment process, and strives to be at the forefront of the heat treatment industry.

Learn more:

Vacuum Nitriding Furnace

Plasma Nitriding Furnace