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Development of Spherical Fine Powders by High-pressure Water Atomization Using Swirl Water Jet 2
Terai Shinji,Kikukawa Masato,Inaba Tsuneta,Koyama Tadashi 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
In order to obtain spherical fine powder, we have developed a new method of high-pressure water atomization system using swirl water jet with the swirl angle . The effect of nozzle apex angle upon the morphology of atomized powders was investigated. Molten copper was atomized by this method, with rad (swirl water jet) and rad (conical water jet). It was found that the median diameter of atomized powders decreased with decreasing down to 0.35 rad in each , but under θ<0.35 rad, increased abruptly with decreasing for rad, while it was still decreased with decreasing for rad.