Patent ID: 6142382
Filing Date: 2000-11-07
Classification: B22F

Abstract:
Gas atomizing nozzle for atomizing a melt, comprising a melt supply member having a frusto-conical tip with a melt discharge orifice, said frusto-conical tip defining a tip apex angle not exceeding 40 degrees, a gas manifold for supplying pressurized atomizing gas, a plurality of discrete gas jet orifices disposed about said tip and comprising a converging section communicated to said gas manifold, a throat section, and a diverging section for discharging a supersonic gas jet, said orifices being in communication with said gas manifold and collectively converging at an orifice apex angle substantially matched to the tip apex angle for discharging supersonic gas jets to atomize said melt in a manner to establish a melt aspiration condition at said melt discharge orifice effective to draw melt therefrom.