Intelligent sensors for atomization processing of molten metals and alloys
نویسندگان
چکیده
1 Atomization Process and Sensor Overview 2 Parameters 2 Processes 2 Mechanism 3 Heuristics 4 Summary 4 Intelligent Sensors for Atomization Process Control 4 Laser Scattering Techniques 5 Laser Diffraction Particle Analysis 5 Particle Counting, Sizing and Velocity Measurement 6 Phase/Doppler Particle Analysis 7 Imaging Techniques 9 Electrical Methods 1 o Isokinetic Sampling 1 o Prospects and Needs 11
منابع مشابه
MODELING OF RAPID SOLIDIFICATION PROCESS IN THE GAS ATOMIZATION OF MOLTEN METALS
In the present work, a model was proposed to predict the thermal history during rapid solidification (RS) of metal droplets in the gas atomization process. The classical theory of heterogeneous nucleation was based on Newtonian heat flow and enthalpy method. Solving the governing numerical equations by the finite difference method (FDM) gave up the opportunity of analyzing the temperature-time ...
متن کاملAssembly of metals and nanoparticles into novel nanocomposite superstructures
Molten salts are widely used to extract oxides and particulate phases from molten Al and protect Al from oxidization during molten aluminum alloys processing. It was reported that TiCN showed a reasonable stability in molten aluminum during solidification nanoprocessing of aluminum matrix nanocomposites. To further verify the TiCN stability in molten aluminum in molten salt, EDX and TEM were us...
متن کاملX-ray Diffraction Study of Molten Te and Tl-Te Alloys
X-ray diffraction patterns have been obtained from molten Te at 470, 520 and 570 °C. The heights of the peak maxima in the structure factor were much the same in contrast with those of typical molten metals such as sodium. Molten Tl-Te alloys have been studied by X-ray diffraction for the alloy compositions 25, 33.3, 50, 60 and 75 at% Te at 500 °C and at about 20 °C above the liquidus. The tota...
متن کاملCatalytic molten metals for the direct conversion of methane to hydrogen and separable carbon.
Metals that are active catalysts for methane (Ni, Pt, Pd), when dissolved in inactive low-melting temperature metals (In, Ga, Sn, Pb), produce stable molten metal alloy catalysts for pyrolysis of methane into hydrogen and carbon. All solid catalysts previously used for this reaction have been deactivated by carbon deposition. In the molten alloy system, the insoluble carbon floats to the surfac...
متن کاملA COMPARATIVE STUDY ON CHARACTERISTICS OF DYNAMIC OXIDE FILM OF MOLTEN Zn-Al ALLOYS
This paper investigates the difference between thickness of zinc-based alloys oxide films in dynamic condition using the oxide-metal-oxide (OMO) sandwich method and static condition by theoretical calculations. In dynamic condition, the thickness of the oxide film in the OMO sandwich sample was characterized by scanning electron microscopy (SEM). In the static condition, the thickness and type ...
متن کامل