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首页> 外文期刊>Journal of Micromechanics and Microengineering >Electrohydrodynamic (EHD) jet printing with a circulating dual-channel nozzle
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Electrohydrodynamic (EHD) jet printing with a circulating dual-channel nozzle

机译:电流动力学(EHD)喷射用循环双通道喷嘴印刷

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摘要

Electrohydrodynamic (EHD) printing is a promising technique for additive manufacturing of high-resolution features with low cost and high efficiency. One of the major issues in EHD printing is nozzle clogging, which often occurs in the printing of colloidal inks with high concentrations. We proposed a new EHD printing nozzle configuration with dual channels to enable ink flow circulation to resolve the above issue. In this study, we focused on the meniscus dynamics and jetting characteristics of this new EHD printing process. Various jetting modes, i.e. continuous jet, pulsating jet, and pulsating droplet, as a function of the electric field intensity and nozzle configuration, were discussed. Dot patterns on a flexible substrate have been demonstrated via the new EHD printing process when operated at the pulsating droplet mode.
机译:电液动力学(EHD)印刷是一种有助于生产高分辨率特征的高分辨率制造技术,具有低成本和高效率。 EHD印刷中的一个主要问题是喷嘴堵塞,这通常发生在具有高浓度的胶体油墨印刷中。 我们提出了一种新的EHD印刷喷嘴配置,具有双通道,使墨水流动循环能够解决上述问题。 在这项研究中,我们专注于这种新的EHD印刷过程的弯月面动态和喷射特性。 讨论了各种喷射模式,即作为电场强度和喷嘴配置的函数的连续喷射,脉动射流和脉动液滴。 在在脉动液滴模式下操作时,已经通过新的EHD印刷工艺证明了柔性基板上的点图案。

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