摘 要:本課題以 PC 插頭注射成型工藝為分析對象,應用熱流道系統(tǒng)進行模具設計。 熱流道注射塑料模縮短了制件的成型周期、節(jié)約了塑料原料、實現(xiàn)了自動化生產(chǎn)過程，

更是由于熱流道模具的成型過程中，塑料熔體的溫度在流道系統(tǒng)里能得到準確地控制，流道內(nèi)的壓力損耗小，熔融塑料以及其以均勻的狀態(tài)流入各個模腔，從而獲得品質(zhì)良好一致的塑料制件。熱流道注射成型的零件澆口質(zhì)量好、脫模后殘余應力低、零件變形小。

　　　運用 Moldflow CAE 技術對產(chǎn)品在注射成型中可能形成的缺陷進行了分析, 準確預測 熔體的填充、保壓、冷卻情況，以及制品中的應力分布、分子和纖維取向分布、制品的收 縮和翹曲變形等情況，CAE 技術提供了從制品設計到生產(chǎn)的完整解決方案，在模具制造之 前，預測塑膠熔體在型腔中的整個成型過程，幫助判斷潛在的問題，有效地防止問題發(fā)生， 提出了模具設計的改進方案。

　　　應用 Pro/E 進行塑件的三維實體分模并設計其注射模具，實現(xiàn)了整套模具的 CAD/CAE 設計過程。

關鍵詞：PC 插頭，注塑模,熱流道，Moldflow 分析

Abstract:With the PC plug injection molding process is analyzed, the application of hot runner system for mould design.

　　　Hot runner injection plastic mould shortened product molding cycle and the plastic materials, realized the automation production process, is due to the mould of hot flow path molding process, plastic melt temperature in the runner system can get the accurate control of the pressure inside the passage, loss, and the molten plastic with uniform state into each cavity, thus obtains good quality product of plastic. Hot runner injection molding parts of the gate of good quality, low after stripping the residual stress, deformation.

　　　While using Moldflow CAE technology of products in the injection molding in analyzing the defects of the melt and accurate prediction, pressure, filling, and products of cooling the stress distribution, molecular and fiber orientation distribution, the products of contraction and warp, CAE technology offers from product design to production of complete solution, in mould, plastic melt in before the whole molding process, help judge potential problems, effectively prevent problems, and puts forward the improvement scheme mould design.

　　　Application for Pro/E plastic mould and the three-dimensional entity points, realize its injection mold design a whole mould CAD/CAE design process.

Keyword: PC plug, Injection molding, Hot runner, Moldflow analysis