Abstract
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 macro-component 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 coefficient, 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.
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Project supported by the National Natural Science Foundation of China (Nos. 51303027 and 11172271), the Scientific Research Staring Foundation, Fujian University of Technology of China (No.GY-Z13028), the Research Fund of Fujian Education Department (No. JA11189), and the Research Fund for Enterprise Technology Innovation (No. 2011-702-04)
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Cui, Zx., Si, Jh., Liu, Ct. et al. Flowing simulation of injection molded parts with micro-channel. Appl. Math. Mech.-Engl. Ed. 35, 269–276 (2014). https://doi.org/10.1007/s10483-014-1789-7
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DOI: https://doi.org/10.1007/s10483-014-1789-7