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Investigation into the dynamic behav...

Zook, Christopher David.

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Investigation into the dynamic behavior of an injection molding non-return value.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Investigation into the dynamic behavior of an injection molding non-return value./
作者:	Zook, Christopher David.
面頁冊數:	344 p.
附註:	Adviser: Avragm J. Isayer.
Contained By:	Dissertation Abstracts International61-10B.
標題:	Engineering, Materials Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9990713
ISBN:	0599981032

Investigation into the dynamic behavior of an injection molding non-return value.
Zook, Christopher David.

Investigation into the dynamic behavior of an injection molding non-return value. - 344 p.

Adviser: Avragm J. Isayer.

Thesis (Ph.D.)--The University of Akron, 2000.

The research presented in this dissertation describes experimentation and simulation to develop an understanding of the operation dynamics of injection molding non-return valves. The purpose of the valve is to shut the flow path between the injection screw and melt pool injected into the mold. The valve improves the variation in weight of the molded part. In addition, the valve provides a flow path during the plastication or recovery stage of the molding cycle. Experimental work has been developed to characterize the dynamic operating conditions of various commercially available non-return valves. Due to the transient nature of the non-return valve, benchmark experimental testing has been developed to understand the transient moving boundary during the flow of polymer melt in a rectangular channel. The non-return valve experiments have been simulated using a quasi-steady procedure and the simulation software FLUENT. The moving boundary polymer melt experiments have been simulated using the FLUENT software and viscoelastic software. In addition to this work, the flow of polymer melt through an axi-symmetric contraction has been simulated using the finite element method and the 3-mode Giesekus viscoelastic equation to progress the future development of viscoelastic code to simulate the injection molding non-return valve.

ISBN: 0599981032Subjects--Topical Terms:

1017759
Engineering, Materials Science.

Investigation into the dynamic behavior of an injection molding non-return value.
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520 $a The research presented in this dissertation describes experimentation and simulation to develop an understanding of the operation dynamics of injection molding non-return valves. The purpose of the valve is to shut the flow path between the injection screw and melt pool injected into the mold. The valve improves the variation in weight of the molded part. In addition, the valve provides a flow path during the plastication or recovery stage of the molding cycle. Experimental work has been developed to characterize the dynamic operating conditions of various commercially available non-return valves. Due to the transient nature of the non-return valve, benchmark experimental testing has been developed to understand the transient moving boundary during the flow of polymer melt in a rectangular channel. The non-return valve experiments have been simulated using a quasi-steady procedure and the simulation software FLUENT. The moving boundary polymer melt experiments have been simulated using the FLUENT software and viscoelastic software. In addition to this work, the flow of polymer melt through an axi-symmetric contraction has been simulated using the finite element method and the 3-mode Giesekus viscoelastic equation to progress the future development of viscoelastic code to simulate the injection molding non-return valve.
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