文章基本信息

标题：Design and development of a brush atomization machine for metal powder production
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作者：O.S. Onwuka ; G.O. Unachukwu ; S.C. Nwanya 等
期刊名称：Scientific African
印刷版ISSN：2468-2276
出版年度：2021
卷号：14
页码：1-11
DOI：10.1016/j.sciaf.2021.e00986
语种：English
出版社：Elsevier
摘要：AbstractA novel brush atomization machine for the production of micro-sized metal powders with minimal energy, complexity, and cost was developed using locally sourced materials. This machine utilizes a round wire brush to produce tiny splatters of molten metals which solidify into powders. Performance test revealed respective powder median diameters of 201 µm, 174 µm, and 212 µm for aluminum, brass, and lead at brush speed of 3,905 rpm. These powder particles were largely irregular and round, although needle-like and dendritic particles were also noticed in sparse amounts. Bulk densities values are 5.61 g/cm3, 1.51 g/cm3, and 4.18 g/cm3for lead, aluminum, and brass respectively. High brush speed, smaller bristle diameter, and low flow rate are some factors favoring the production of smaller-sized powders. Adoption of this innovation will make powder metallurgy components cheaper, encourage manufacturing processes like additive manufacturing and sintering, create job opportunities, and reduce importation.
关键词：KeywordsAtomizationBrushMetalPowderMachine