Flowing simulation of injection molded parts with micro-channel

• Published in: Applied mathematics and mechanics Vol. 35; no. 3; pp. 269 - 276
• Main Author: 崔志香 司军辉 刘春太 申长雨
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University 01.03.2014; National Engineering Research Center for Advanced Polymer Processing Technology,Zhengzhou University, Zhengzhou 450002, P.R.China%National Engineering Research Center for Advanced Polymer Processing Technology,Zhengzhou University, Zhengzhou 450002, P.R.China; School of Materials Science and Engineering, Fujian University of Technology,Fuzhou 350108, P.R.China
• Subjects: Applications of Mathematics; Channels; Classical Mechanics; Finite difference method; Fluid- and Aerodynamics; Heat transfer coefficients; Injection molding; Mathematical analysis; Mathematical Modeling and Industrial Mathematics; Mathematical models; Mathematics; Mathematics and Statistics; Melts; micro-injection; molding;flowing; Molds; Partial Differential Equations; simulation;micro-channel; O35; micro-channel; 76M20; 76M10; micro-injection molding; flowing simulation
• ISSN: 0253-4827; 1573-2754
• DOI: 10.1007/s10483-014-1789-7

In the micro-molding of component with a micro-sized channel, the ability for polymer melt to flowing into the micro-channel in a macro-sized part is a big challenge. The multidimensional flow behaviors are included in the injection molding the macrocomponent with a micro-channel. In this case, a simplified model is used to analyze the flow behaviors of the macro-sized part within a micro-channel. The flow behaviors in the macro-cavity are estimated by using the finite element and finite difference methods. The influence of the injection rate, micro-channel size, heat transfer coeffcient, and mold temperature on the flowing distance is investigated based on the non-isothermal analytic method. The results show that an increase in the radius of the micro-channel and mold temperature can improve effectively the flowing distance in the micro-channel.