Meaning
Aerodynamic shock structures move away from the exit plane of a supersonic nozzle when the operating pressure ratio deviates from design limits. Mach disk detachment alters the velocity and temperature distribution of the gas jet used in metal atomization. This displacement changes the location where the gas meets the liquid metal stream, which reduces atomization efficiency.
Sourcing specialists evaluate nozzle designs to ensure stable gas flows under varying inlet pressures.
Pressure Ratio
High gas pressures force the shock cell structures downstream, which shifts the position of the mach disk. This shift reduces the kinetic energy transferred to the melt.
Atomization Yield
Incorrect shock positions prevent the gas from breaking the liquid metal into fine, uniform droplets. This flow mismatch increases the proportion of oversized particles.
Operational Constraint
Stable jet conditions require precise control of the gas delivery pressure to prevent detachment. Continuous monitoring of pressure lines maintains consistent powder quality throughout the run.
