Design and Analysis of a Polymer Co-extrusion Die Using the Finite Element Method PDF Download
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Author: Madiajagane Rathinavelu
Publisher:
ISBN:
Category : Extrusion process
Languages : en
Pages : 216
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Book Description
Author: Madiajagane Rathinavelu
Publisher:
ISBN:
Category : Extrusion process
Languages : en
Pages : 216
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Book Description
Author: Ihsan Aladdin Abbud
Publisher:
ISBN:
Category : Extrusion
Languages : en
Pages : 182
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Book Description
Author: G.N. Kouzilos
Publisher:
ISBN:
Category : Technology
Languages : en
Pages :
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Book Description
A computational fluid dynamics (CFD) model has been developed to compute the pressure, temperature, velocity, viscosity and viscous dissipation in the high-density polyethylene (HDPE) extrusion process. The numerical approach agrees fairly well with the experimental data recorded during the extrusion process of the material. The extrusion spider die was designed to produce high-density polyethylene pipes of 32 mm inner nominal diameter and 2.4 mm thickness. In order to investigate if the spider legs are able to perform under the pressure occurred using the maximum flow rate provided by the single screw extruder of this study, a stress analysis was conducted on a single spider leg. This fluid-structure interaction (FSI) problem was solved using the COMSOL Multiphysics software. Finally, the results obtained from the FE analysis were applied in the design and fabrication of the spider die, selecting IMPAX (tool steel) as fabrication material.
Author: Christian Hopmann
Publisher: Carl Hanser Verlag GmbH Co KG
ISBN: 1569906815
Category : Technology & Engineering
Languages : en
Pages : 479
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Book Description
This definitive book provides a comprehensive account of the full range of dies used for extrusion of plastics and elastomers. The distinctive features of the various types of dies are described in detail. Expert advice on the configuration of dies is given, and the possibilities of computer-aided design, as well as its limitations, are demonstrated. Fundamentals and computational procedures are clearly explained so that no special prior knowledge of the subject is required. The mechanical configuration, handling, and maintenance of extrusion dies are described. Calibration procedures for pipes and profiles are also discussed. This book was written for plastics engineers who need daily support in their practical work in industry and science, as well as for students preparing for their professional life. The 4th edition is brought up to date with several important additions, including coverage of multilayer (>15 layer) dies, melt encapsulation, and simulation tools (rheological/thermal CFD simulations).
![Finite Element Analysis of Layer Non-uniformity in Polymer Coextrusion Flows [microform] PDF](https://books.google.com/books/content/images/frontcover/Rgk9NwAACAAJ?fife=w80-h100)
Author: Agustin Torres Riquelme
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612058729
Category : Finite element method
Languages : en
Pages : 254
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Book Description
Author: Pierre G. Lafleur
Publisher: John Wiley & Sons
ISBN: 1118827171
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
Extrusion is by far the most important and the oldest processing and shaping method for thermoplastic polymers. This process concerns almost all synthetic polymers, as well as elastomers or food materials. Single-screw extrusion is mainly used nowadays to manufacture finished goods or semi-finished products. More than 90 million tons of thermoplastics are therefore processed every year. Twin-screw extrusion may be divided into two systems: contra-rotating systems used within the context of PVC extrusion, for the manufacture of pipes or profiles; and co-rotating systems experiencing nowadays a very significant development, because of their significant adaptability and flexibility, which enables the manufacture of specific materials (polymer alloys, thermoplastic elastomers, filled polymers, nanocomposites). Extrusion is carried out by passing molten polymer through a tool called die that will give the product its final shape (films and sheets, rolled products, and electric cables). Thanks to the design of dies, we obtain at the output a product with controlled dimensions, uniform speeds and homogeneous temperatures. The book will discuss the same production types, but only in the case of coextrusion flows, i.e. multilayer stratified products. First of all, we will present in this book the physics of the mechanisms at stake, then propose more or less complex models in order to describe these mechanisms and then go forward in the interpretation of results and the control of condition flows.
Author: Michael J. Bland
Publisher:
ISBN:
Category :
Languages : en
Pages : 422
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Author: James Allen Peitzmeier
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Book Description
Author: Prashant Gosavi
Publisher:
ISBN:
Category : Extrusion process
Languages : en
Pages : 170
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Book Description
Author: Walter Michaeli
Publisher:
ISBN:
Category : Dyes and dyeing
Languages : en
Pages : 472
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Book Description
