Design, optimization, and manufacturing of a multiple-thickness profile extrusion die with a cross flow

Autor:	M. Bakhshi Jooybari, A. Rezaei Shahreza, Amir Hossein Behravesh, Ehsan Soury
Rok vydání:	2010
Předmět:	Work (thermodynamics) Materials science business.product_category Polymers and Plastics Computer simulation Flow (psychology) Plastics extrusion Process (computing) Mechanical engineering General Chemistry Cross section (physics) Materials Chemistry Die (manufacturing) Extrusion business
Zdroj:	Polymer Engineering & Science. 50:2417-2424
ISSN:	0032-3888
Popis:	This article presents a procedure to achieve a uniform outlet flow of molten polymer for a complex die profile with various thicknesses in die outlet cross section. According to a specific optimization methodology, the die was optimized based on varying die land length. The scope of this article includes: 3D flow simulation, optimization of the die velocity outputs based on the results of simulation process, and comparison of numerical predictions with the experimental data. Finally a significant result obtained by this work indicates higher ratio of the land length to the height of the zone with cross flow rather than the zones that are directly fed by the extruder. POLYM. ENG. SCI., 2010. © 2010 Society of Plastics Engineers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bebb18d5b90ba931ad615de67f11bcd https://doi.org/10.1002/pen.21770 Zobrazit plný text záznamu Plný text