Application of a plate sonotrode to ultrasonic degassing of aluminum melt: Acoustic measurements and feasibility study
Application of a plate sonotrode to ultrasonic degassing of aluminum melt: Acoustic measurements and feasibility study
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DOI：
10.1016/j.jmatprotec.2015.03.006
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发表时间：
2015-08-01
影响因子：
6.3
通讯作者：
Tzanakis, I.
中科院分区：
文献类型：
--
作者：
Eskin, D. G.;Al-Helal, K.;Tzanakis, I.
采用平板声电极对铝熔体进行超声波熔炼（脱气）。计算表明，该声电极应有几个最大振幅的天线，间隔为16.5 mm。在空气中的直接测量和在水中的间接测量验证了这些计算。利用空化仪对水和液态铝合金中的空化活度进行了独特的声学测量，证实了该方案满足空化条件。在间歇操作中，平板声呐极的熔体脱气效率（70-80%）明显高于传统的圆柱形声呐极（45-50%）。新方案也适用于熔体流中的超声波熔体处理，脱气效率约为50%，这为升级该技术以处理更大体积的熔体开辟了道路。(C) 2015年作者。这是一篇基于CC by许可（http://creativecommons.org/licenses/by/4.0/）的开放获取文章。
A flat plate sonotrode was used for ultrasonic melt processing (degassing) of aluminum melts. Calculations showed that this sonotrode should have several antinodes with maximum amplitude, spaced at 16.5 mm. The direct measurements of the amplitude in air and indirect measurements of foil cavitation erosion in water validated these calculations. Unique acoustic measurements of cavitation activity in water and a liquid aluminum alloy were performed using a cavitometer and confirmed that the cavitation conditions were met with this scheme. The melt degassing efficiency using the plate sonotrode was significantly higher (70-80%) than with a conventional cylindrical sonotrode (45-50%) in batch operation. The new scheme was also suitable for ultrasonic melt processing in the melt flow giving about 50% degassing efficiency, which opens the way to upscaling this technology to treat larger volumes of melt. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).