目的 为研究丝网印刷参数对过墨量的影响，建立关于油墨动压和印刷参数之间的理论模型以及油墨动压与过墨量之间的有限元模型。方法 以流体力学理论研究丝网印刷参数与油墨动压的关系，通过有限元方法构建油墨动压与过墨量的关系曲线，最终设计实验对仿真结果进行验证。结果 仿真与实验的网孔过墨率与楔形动压曲线表明，网孔过墨率与楔形动压呈正相关，并且仿真结果与实验结果误差在10%以内。结论 丝网印刷仿真结果基本与印刷实验结果吻合，印刷参数与过墨量之间关系能较好地估计印刷参数对过墨量的影响，为实现过墨量的控制提供了理论指导。

The work aims to establish a theoretical model for the relationship between ink dynamic pressure and printing parameters, and a finite element model for the relationship between ink dynamic pressure and ink flow rate, so as to study the effect of screen printing parameters on ink flow rate. The relationship between screen printing parameters and ink dynamic pressure was studied with the knowledge of fluid mechanics. The relationship curve between ink dynamic pressure and ink flow rate was constructed by the finite element method. Finally, the simulation results were verified by design experiments. The curve of mesh ink flow rate and wedge dynamic pressure showed that mesh ink flow rate was positively correlated with wedge dynamic pressure, and the error between simulation and experiment results was within 10%. The simulation results of screen printing are basically consistent with the printing experimental results, and the relationship between the printing parameters and ink flow rate can better estimate the impact of printing parameters on ink flow rate, providing theoretical guidance for achieving ink flow rate control.