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
在這個研究中，縫隙澆口澆注系統(tǒng)被用于提高模具填充能力及用金屬模生產(chǎn)鑄鋁件的質(zhì)量。用于實時監(jiān)測熔融鋁流入金屬模腔的設(shè)備和操作規(guī)程已經(jīng)被開發(fā)出來了。結(jié)果表明融融金屬能通過合適的縫隙交口澆注系統(tǒng)平滑的流入鑄模型腔。一個較大的垂直冒口，適當(dāng)?shù)目p隙澆口厚度和更低的涂層粗糙度不僅可以提供一個更好的模具充填方式，還能保證熱熔體充填型腔頂部。要獲得一個合適的溫度梯度，型腔的底部溫度高，頂部低。這促成了鑄件凝固時的補縮。澆口優(yōu)化的目的是減小注塑件翹曲變形等情況，因為對于大多數(shù)注塑件而言，翹曲是一個非常重要的質(zhì)量問題,而這又顯著影響了澆口位置。最后，通過一個例子進行了探討和分析結(jié)果表明,提出的方法是有效的。
關(guān)鍵詞：縫隙澆口澆注系統(tǒng) 模具充填過程 澆口位置