Sensitivity of Contactless Ultrasound Processing to Variations of the Free Surface of the Melt with Induction Heating

机译：感应加热非接触超声处理对熔体自由表面变化的敏感性

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Contactless ultrasound treatment can be useful for high-temperature or reactive alloys in the liquid state, where contact with an immersed vibrating probe is undesirable. The alternating component of the Lorentz force can generate sound pressure levels leading to cavitation of gas bubbles in the melt, through acoustic resonance. Resonance is a function of the speed of sound in the liquid, the shape of the volume containing it and surrounding boundary conditions. Induction forces applied to a crucible lead to bulk stirring and in general deform the free surface, whose precise shape may influence the resonance conditions. This effect is investigated here by multi-physics computer modelling. Calculated results for aluminium melts are compared with experimental data and conclusions are drawn as to the sensitivity to process parameters and the reliability of this type of ultrasound metal processing.

机译：非接触式超声处理可用于液态的高温或反应性合金，在这种情况下，不宜与浸入式振动探头接触。洛伦兹力的交变分量可以产生声压级，从而通过声共振导致熔体中的气泡空化。共振是液体中声音速度，包含液体的体积的形状以及周围边界条件的函数。施加到坩埚的感应力会导致大量搅拌，并且通常会使自由表面变形，自由表面的精确形状可能会影响共振条件。在这里，通过多物理场计算机建模来研究这种效果。将铝熔体的计算结果与实验数据进行了比较，得出了对工艺参数的敏感性以及这种类型的超声金属加工的可靠性的结论。

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来源
《TMS annual meeting exhibition;International symposium on high-temperature metallurgical processing》|2017年|289-298|共10页
会议地点 San Diego(US)
作者
G. Djambazov; V. Bojarevics; D. Shevchenko; D. Burnard; W. Griffiths; K.A. Pericleous;
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University of Greenwich London UK;

University of Birmingham Birmingham UK;

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关键词
Ultrasound treatment; Liquid metal; Electromagnetic induction heating; Acoustic resonance; Cavitation;

机译：超声治疗；液态金属；电磁感应加热；声共振空化;

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1. Induction heating. Feasibility and prospects of application in processes of special electrometallurgy./Part 2. Methods and equipment for induction melting of metals at melt contact with a crucible wall [J] . Sheiko I. V., Grigorenko G. M. Современная элеκтрометаллургия . 2003,第4期

机译：感应加热。在特种电冶金工艺中的可行性和应用前景。/第2部分。熔融与坩埚壁接触时金属的感应熔化方法和设备
2. Induction heating. Feasibility and prospects of application in processes of special electrometallurgy./Part 2. Methods and equipment for induction melting of metals at melt contact with a crucible wall [J] . Sheiko I. V., Grigorenko G. M. Современная элеκтрометаллургия . 2003,第4期

机译：感应加热。在特种电冶金工艺中的可行性和应用前景。/第2部分。熔融与坩埚壁接触时金属的感应熔化方法和设备
3. Induction heating. Feasibility and prospects of application in processes of special electrometallurgy./Part 2. Methods and equipment for induction melting of metals at melt contact with a crucible wall [J] . Sheiko I. V., Grigorenko G. M. Современная элеκтрометаллургия . 2003,第4期

机译：感应加热。特殊电铝制过程中应用的可行性和展望./Part 2.熔融壁在熔融壁上感应熔化的方法和设备
4. Sensitivity of Contactless Ultrasound Processing to Variations of the Free Surface of the Melt with Induction Heating [C] . G. Djambazov, V. Bojarevics, D. Shevchenko, International Symposium on High-Temperature Metallurgical Processing . 2017

机译：非接触超声处理对熔体自由表面变化的敏感性，感应加热
5. Free Surface Melt Electrospinning: A Solvent Free Approach Toward Electrospinning [D] . Shabanizarinkafshrashti, Elnaz. 2020

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7. Structural variation of melt-crystallized PTT during the heating process revealed by FTIR and SAXS [O] . Zhen Chen, ShouKe Yan 2012

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Sensitivity of Contactless Ultrasound Processing to Variations of the Free Surface of the Melt with Induction Heating

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