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Breakup process modeling and production of FeSiAl magnetic powders by close-coupled gas atomization
Journal of Materials Research and Technology, 2023 Close-coupled gas atomization is extensively used in the industrial production of alloy powders due to the advantages of high efficiency, low cost and excellent powder properties.
Pu Wang +5 more
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Journal of Materials Research and Technology, 2023 A two-way coupling Discrete Phase Model (DPM) is applied to calculate the secondary atomization process. The particle flight and cooling processes are studied under different process parameters.
Pu Wang +5 more
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Melt Damage and Prevention of Gas Nozzle Tip in Close-Coupled Gas Atomization [PDF]
JGas atomization is one method for producing fine metal powder. In close-coupled gas atomization, a high-speed gas jet is ejected near the molten metal, and the molten metal is further broken down in the shear layer at the outer edge of the jet, producing
Nazuku Kato +4 more
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Journal of Materials Research and Technology, 2023 The primary atomization process is simulated by Volume of Fluid (VOF) model and dynamic adaptive mesh method. The influence of melt mass flow rate and atomization pressure on the breakup process is investigated, and the effect of hot gas atomization is ...
Jiaqi Liu +5 more
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MetalsThe breakup process of molten metal is the most critical stage in atomization powder production. Conducting systematic research on the breakup process of molten metal during gas atomization is highly significant for understanding the formation mechanism ...
Yi Wang +3 more
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Influence of melt superheat on breakup process of close-coupled gas atomization
Transactions of Nonferrous Metals Society of China, 2007 In close-coupled gas atomization(CCGA), the influences of melt superheat on breakup process are fundamental to obtain desired or finer powder. Based on a series of Cu atomization experiment under different superheating conditions, the influences of melt superheat on breakup process were studied.
Bai-Yun Huang
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Numerical and experimental modelling of back stream flow during close-coupled gas atomization [PDF]
Computers and Fluids, 2013 This paper reports the numerical and experimental investigation into the effects of different gas jet mis-match angles (for an external melt nozzle wall) on the back-stream flow in close coupled gas atomization. The Pulse Laser Imaging (PLI) technique was applied for visualising the back-stream melt flow phenomena with an analogue water atomizer and ...
Robert Cochrane +2 more
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Evaluation of a Mathematical Model Based on Lubanska Equation to Predict Particle Size for Close-Coupled Gas Atomization of 316L Stainless Steel [PDF]
Materials Research, 2022 Close-Coupled Gas Atomization (CCGA) is often used to produce spherical metal powders with a wider Particle Size Distribution (PSD) (10 – 500 µm) compared to that required by the main Additive Manufacturing processes (10 – 105 µm).
Flávia Costa da Silva +2 more
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Liquid interface dynamics at primary breakup in close-coupled gas atomization
International Journal of Multiphase FlowBo Kong, René van Hout
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Gas Velocity Measurements of Close-Coupled Atomizers
Materials Science Forum, 2007 It is commonly considered that the character of atomizing gas-flowing field would affect breaking method of molten metal, liquid droplet size and mass distribution. It is one of the important factors which determine the microstructure and metallurgical quality of products. In this paper, three types of atomizers were designed and Pitot tube was used to
Shun Li Zhao +3 more
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