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Effect of Gas Atomization Parameters on Particle Size of 316L Stainless Steel Powder

June 28,2023

Gas atomization is a technique of spraying metal powder into fine droplets, which has a certain influence on the particle size of 316L stainless steel powder

The following are some common atomization parameters and their possible effects on particle size of 316L stainless steel powder:

Air pressure (spray air pressure): Higher air pressure creates a stronger spray force, spraying the metal powder into smaller droplets. Therefore, increasing the gas pressure may result in a finer powder.


Airflow: Proper airflow is critical to maintaining a steady spray process. Too high or too low air flow may affect the spray effect and powder particle size distribution.

Liquid injection speed: The liquid injection speed directly affects the injection speed and droplet formation of metal powder. Higher jet velocities may produce smaller droplets and finer powder sizes.

Fluid Preheat Temperature: Fluid preheat temperature is the temperature at which the metal powder and blasting media (usually a solvent) are heated prior to spraying. Appropriate liquid preheating temperature can improve the fluidity and spraying effect of the powder, thus affecting the particle size of the powder.


It should be noted that different gas atomization equipment and process conditions may have different effects, and the influencing factors are intertwined. Therefore, when controlling and adjusting these parameters during the atomization process, it is necessary to comprehensively consider the interaction between different factors, conduct experimental research and data analysis, in order to obtain accurate powder particle size control and optimization guidance.


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