模具的发展及浇口的分析和优化(英文翻译）.rar

In this study，the slot gating system is employed to improve mold filling behavior and therefore．to impromve the quality of aluminum castings produced in permanent molds. The results indicate that molten metal can smoothly fill into casting cavity with a proper slot gating system．A bigger vertical riser，proper slot thickness and rougher coating can provide not only a better mold filling pattern．but also hot melt into the top of the cavity．A proper temperature gradient is obtainable．higher at the bottom and lower at the top of the casting cavity．which is in favor of feeding during casting solidification. The objective of the gate optimization is to minimize the warpage of injection molded parts, because warpage is a crucial quality issue for most injection molded parts while it is influenced greatly by the gate location.Finally, an example is discussed in the paper and it can be concluded that the proposed
Key words: slot gating system；mold filling process； Gate location

摘要
在这个研究中，缝隙浇口浇注系统被用于提高模具填充能力及用金属模生产铸铝件的质量。用于实时监测熔融铝流入金属模腔的设备和操作规程已经被开发出来了。结果表明融融金属能通过合适的缝隙交口浇注系统平滑的流入铸模型腔。一个较大的垂直冒口，适当的缝隙浇口厚度和更低的涂层粗糙度不仅可以提供一个更好的模具充填方式，还能保证热熔体充填型腔顶部。要获得一个合适的温度梯度，型腔的底部温度高，顶部低。这促成了铸件凝固时的补缩。浇口优化的目的是减小注塑件翘曲变形等情况，因为对于大多数注塑件而言，翘曲是一个非常重要的质量问题,而这又显著影响了浇口位置。最后，通过一个例子进行了探讨和分析结果表明,提出的方法是有效的。
关键词：缝隙浇口浇注系统 模具充填过程 浇口位置