Ultrasonic Cavitation - an overview | ScienceDirect Topics
Ultrasonic cavitation is fundamentally responsible for the removal of oxide film in the thin layer of liquid metal [66,67] (as shown in Fig. 6 A). In addition, ultrasonic cavitation in the thin liquid layer will appear in the process of non-contact near-field acoustic levitation and transport of planar objects [68] (as shown in Fig. 6 C). The ...
Developing high intensity ultrasonic cleaning (HIUC) for post ...
2022年12月1日 · In the present work, we designed an ultrasonic cleaning machine with geometrical focusing of ultrasonic waves. Immersible transducer sets were placed on the sides of an ultrasonic tank to generate a highly intense central cavitation zone – with sufficient intensity to remove partially melted powders from AM surfaces.
Ultrasonic washing of textiles - ScienceDirect
2016年3月1日 · The results demonstrate that cavitation bubbles oscillating in acoustic fields are capable of removing soils from textiles. Since the washing performance is mitigated in a large washing bath when using an ultrasonic transducer, we propose a novel washing scheme by combining the ultrasonic vibration with a conventional washing method utilizing ...
Ultrasonic cavitation: An effective cleaner and greener …
2022年11月1日 · Acoustic cavitation from ultrasound influences chemical reactivity, otherwise termed ‘sonochemistry’ [30]. Sonochemistry assists physical and chemical processes and effectively leads to controlled shapes and sizes of nanomaterials [31]. The flow of the ultrasonic mechanism that leads to sono-physical effects is depicted in Fig. 3 (c).
Fabrication of deep micro-holes in reaction-bonded SiC by …
2014年1月1日 · With ultrasonic cavitation in pure EDM oil, the surface of the micro-hole is very rough (0.28 µmRa) and covered with resolidified material (Fig. 6 a). In contrast, in Fig. 6 (b), the surface machined with ultrasonic cavitation in carbon nanofiber mixed EDM oil is smoother (0.20 µmRa), and surface
Recent advances in ultrasonic cavitation technologies for emulsion ...
2024年9月1日 · Ultrasonic cavitation causes bubbles to oscillate and collapse, resulting in stable emulsions with small droplet sizes. Ultrasonic devices are popular for emulsification due to their excellent emulsion stability, low energy consumption, and low cost.
Trends and characteristics of employing cavitation technology for …
2023年2月1日 · On the contrary, in Germany, most research focused on industrial-scale applications of ultrasonic cavitation for wastewater treatment (Lippert et al., 2020) or the physical processes regulating ultrasonic cavitation and the consequent bubble generation (Izak Ghasemian et al., 2021). This shift in focus can be ascribed to the higher ...
Ultrasonic Vibration and Cavitation-aided Micromachining of Hard …
2012年1月1日 · Cavitation machining is a method is aided by ultrasonic vibration of the cutting fluid. We investigated the effects of USV, cavitation, and their combination on the micro drilling of SiC. Experimental results clearly showed an improvement in tool life and a reduction in tool wear.
Process mechanism in ultrasonic cavitation assisted fluid jet …
2018年1月1日 · A dual-frequency ultrasonic cavitation dynamics model is established in this paper to investigate dynamic evolution of bubble under single and dual frequency ultrasonic modes. The variation of bubble radius, pressure, energy, temperature, and number of water vapor molecules inside the bubble in single and dual frequency ultrasonic modes are ...
Ultrasonic vibration-assisted (UV-A) manufacturing processes: …
2020年3月1日 · The interaction between ultrasonic cavitation bubbles and dendrites is shown in Fig. 17. Due to the high attenuation of ultrasonic vibration in the liquid materials, cavitation bubbles are primarily created around the ultrasonic probe [120]. It can be clearly seen that the primary dendrite is initially bent and then fragmented into small pieces ...