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Automatic Design for Cooling Channels in Injection Molding under Steady-State Heat Conduction Analysis

机译:稳态热传导分析的注塑成型冷却通道自动设计

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摘要

An arrangement of cooling channels in a mold should be designed properly to improve productivity and formability for a molded product in injection molding, because temperature distribution on the mold is dependent on the arrangement and has some influence on molded defects. The purpose of this study is to develop a methodology for automatically designing arrangement of cooling channels so as to obtain the suitable temperature distribution to reduce molded defects and to realize high productivity. A cooling channel is modeled by a set of autonomous elements which is arranged as a line and has performance for extracting heat in the mold. The arrangement of cooling channels are automatically obtained by autonomous action of these elements, according to information sent from sources which are located on the mold cavity surface and evaluate temperature on its location. For estimating the temperature distribution, a steady-state heat conduction is assumed for heattransfer in the mold and calculated by numerical analysis. Several numerical experiments have been conducted for estimating the proposed method, and the effectiveness and feasibility have beeit confirmed for automatic design of cooling channels.
机译:模具中冷却通道的布置应适当设计,以提高注塑成型中模制品的生产率和可成型性,因为模具上的温度分布取决于布置,并且对模制缺陷有一定影响。这项研究的目的是开发一种用于自动设计冷却通道排列的方法,以便获得合适的温度分布,以减少成型缺陷并实现高生产率。冷却通道由一组独立的元素建模,这些元素排列成一条线并具有在模具中吸热的性能。根据从位于型腔表面并评估其位置温度的来源发出的信息,通过这些元件的自主作用自动获得冷却通道的布置。为了估计温度分布,假定稳态热传导用于模具中的热传递,并通过数值分析进行计算。已经进行了一些数值实验来估计所提出的方法,并且其有效性和可行性已被确认用于冷却通道的自动设计。

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