摘要
为了解决毛细射流过程中出现的射流偏斜问题,本研究提出微小杂质假设模型来研究局部微小杂质对毛细射流的影响,如毛细射流偏斜角、射流方向和局部压强的变化。当微小杂质处于喷孔壁的不同位置时,变化产生。仿真结果和实验结果表明,当喷孔内壁有微小杂质时,毛细射流发生偏斜,局部杂质假设模型合理。采取清洗措施消除了射流偏斜。本研究有助于提高后续喷墨印刷复杂曲面中的毛细射流方向精度和稳定性。
In order to prevent the deflecting jet,a hypothetical model of micro impurity is proposed to investigate the effect of micro impurity on the deflection angle of capillary jet,jet direction,and local pressure.The changes are revealed as the micro 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.
出处
《中国印刷与包装研究》
CAS
2014年第6期81-85,共5页
China Printing Materials Market
基金
科技部2013年科研院所技术开发研究专项--复杂三维曲面喷墨印刷方法的研发(No.2013EG140227)
北京市2013年科技创新基地培育与发展工程专项--3D打印物体表面着色基础研究(No.Z131110002813034)
关键词
毛细射流
微小杂质
喷孔内壁
偏斜角
Capillary jet
Micro impurity
Inner orifice wall
Deflection angle
