摘要
基于电流体动力学原理的电喷印技术是一种用于制造微纳尺度三维结构的喷印技术,可以在喷头不易堵塞的基础上实现亚微米和纳米级分辨率的高精度图案化,对电喷印施加脉冲电压可以实现按需喷印。通过实验得出方波脉冲电压对于喷印的影响规律,其中频率越大,沉积液滴直径越小;频率不变,电压幅值或入口压力增大都会使沉积液滴直径增大;而增大电压或气压值,可以提高液滴最大释放频率。最终获得了频率为300 Hz和平均直径为52.3μm的液滴,确立了较为理想的喷印工艺条件。
E-jet printing based on electrohydrodynamic（ EHD） is a micro/nano scale 3D printing processes. It can achieve sub-micron and nanometer resolution patterning precision in the nozzle not prone to clogging. Applying a pulse voltage can achieve drop-on-demand printing.Experiment is used to get the influence law of square impulse voltage on E-jet Printing. If the frequency is bigger, the diameter of the deposit droplet will be smaller. If the frequency is constant, the deposited droplet diameter will increase with increased voltage amplitude or inlet pressure. Increasing the voltage amplitude or pressure value can increase the frequency of droplet release. Ultimately we obtain the droplets which the ejection frequency is 300 Hz and the average diameter is 52.3μm, an ideal spray printing process condition is established.
出处
《机械工程师》
2016年第4期29-31,共3页
Mechanical Engineer
关键词
电流体动力学
电喷印
按需喷印
脉冲电压
electrohydrodynamic
E-jet printing
drop on demand
impulse voltage
