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Propagation of Power Ultrasound in Calcium Ferrite Melt

机译：功率超声在铁氧体钙熔体中的传播

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摘要

Ultrasonic vibration was introduced into calcium ferrite (CF) melt in order to develop a new sintering process. Based on the acoustic refraction and reflection principles, ultrasonic propagation between amplitude transformer and CF melt has been analyzed and discussed. In addition, numerical simulation of ultrasonic propagation in CF melt has also been carried out using finite element method. The distribution of acoustic pressure in CF melt were obtained, and the effects of ultrasonic power and frequency on acoustic pressure distribution were also investigated. The results show that increasing ultrasonic power promotes the acoustic pressure amplitude in the CF melt, while increasing frequency decrease the acoustic pressure amplitude. The acoustic pressure amplitude with the frequency closer to the resonant frequency may get the best cavitation effect because its average acoustic pressure is greater than those of others.
机译：超声波振动被引入到铁酸钙（CF）熔体中，以开发新的烧结工艺。基于声折射和反射原理，分析和讨论了变幅器和CF熔体之间的超声传播。此外，还使用有限元方法对CF熔体中的超声波传播进行了数值模拟。得到了CF熔体中的声压分布，并研究了超声功率和频率对声压分布的影响。结果表明，增加超声功率会促进CF熔体中的声压振幅，而增加频率会降低声压振幅。频率接近谐振频率的声压振幅可能会获得最佳的空化效果，因为其平均声压大于其他声压。

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