Abstract
A caloric probe to measure average specific enthalpies of molten metal droplets in a spray cone of a free fall atomizer was developed. Molten tin was used in this caloric probe to collect the particles of the spray. The results of standard deviation of the consistency measurements were examined comprehensively. The experiments were made with low carbon steel, bearing steel AISI 52100 and copper. The process parameters, gas mass flow rate and melt mass flow rate were varied. The specific enthalpy within the spray cone clearly decreased with increasing radial distance from the center of the spray cone and with increasing axial distance to the nozzle. A correlation between median particle diameter and average specific enthalpy was clearly observed. Experimental results are compared with data from numerical simulations.
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