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標題: 田口方法應用於射出成型製程與螺桿設計
Application of Taguchi Methods for The Injection Molding Process And Screw Design
作者: 林澤龍
Lin, Tzer-Long
關鍵字: Taguchi Methods;田口方法;Injection Screw;Injection Molding;射膠螺桿;射出成型
出版社: 機械工程學系
本研究之主要目的乃是,引用田口式品質工程之參數設計方法, 應用
直交表進行實驗 設計,改變射出成型機上相關參數,並探究各參數因子
品質與塑件之填充品質。本研究之重要結果分述如下: 一
度及加料轉速 快慢等不同程度之影響。而對PP塑料來說,則依次為
螺桿牙的深度、加料轉速快慢 及料管溫度設定。

The major goals of this research are to provide the design
information of the injection screws used in injection molding
machine and optimize the settings of operating conditions that
can improve the quality of the injection molded products and the
mold filling.
A parametric study based on the Taguchi methods accompanied
with orthogonal arry is applied to search the effective design
parameters of injection screw that attecting signficantly on the
temperature distribution during plasticating process and melt
material flow length in the molds . the above mentioned
temperature distribution and melt flow length are used to
identify the quality of injection molding products in the preset
study. A number of experiments were
conducted on a model injection molding machine by using two
kinds of polymer materials , ABS (Acrylonitride Butadiene
Stynene Copolymer) and PP (PolyPropylene). It was found that the
main parameters that affecting the flow length in the mold of a
given plastic material are the barrel temperatures and the
injection pressures . In addition , it is found that , for the
ABS material , the uniformity of temperature distribution during
injecting process is controlled effectively by the parameters
with the order of setting of barrel temperature , thread depth
of screw , and turning speed of screw. On the other hand , for
the PP material , the uniformity of temperature distribution is
controlled by the parameters with significance the order of
thread depth of screw , turning speed of screw , and setting of
barrel temperature .
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