Influences of Local Micro Impurity on Capillary Jet

Abstract:

In order to prevent the deflecting jet, a hypothetical model of local micro impurity is proposed to investigate the transformation of capillary jet on the deflection angle, jet direction, and local pressure. The changes are revealed as the local impurity lies at the different places of inner orifice wall. The simulation results agree with the experiments that the capillary jet deflects as the impurity lies in the orifice of capillary nozzle, which proves that the hypothetical model of local micro impurity is reasonable. Cleaning measures are taken to eliminate the jet deflection. This work is useful to improve the direction accuracy and the stability of capillary jet for the subsequent inkjet process in complex curved surface printing.

• Periodical: Applied Mechanics and Materials (Volume 731)
• Pages: 265-268
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.731.265
• Online since: January 2015
• Authors: Xiao Shan Jiang*, Ting Liang Chu
• Keywords: Capillary Jet, Deflection Angle, Inner Orifice Wall, Local Micro Impurity

References

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[2] X. S. Jiang: Research on the Uniform Metal Droplet Stream for Generation & Stable Spraying Process (Northwestern Polytechnical University, Xian, 2010).

[3] C. H. Passow: A Study of Spray Forming Using Uniform Droplet Sprays (MIT, MA, 1992).