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Analyzing and Troubleshooting Single-Screw Extruders

Analyzing and Troubleshooting Single-Screw Extruders
A Book

by Gregory A. Campbell,Mark A. Spalding

  • Publisher : Carl Hanser Verlag GmbH Co KG
  • Release : 2013-04-04
  • Pages : 800
  • ISBN : 3446432663
  • Language : En, Es, Fr & De
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Prior extrusion books are based on barrel rotation physics—this is the first book that focuses on the actual physics of the process—screw rotation physics. In the first nine chapters, theories and math models are developed. Then, these models are used to solve actual commercial problems in the remainder of the book. Realistic case studies are presented that are unique in that they describe the problem as viewed by a typical plant engineer and provide the actual dimensions of the screws. Overall, there is not a book on the market with this level of detail and disclosure. The new knowledge in this book will be highly useful for production engineers, technical service engineers working with customers, consultants specializing in troubleshooting and process design, and process researchers and designers that are responsible for processes that running at maximum rates and maximum profitability. Contents: o Introduction & Troubleshooting o Polymer Materials o Introduction to Polymer Rheology for Extrusion o Resin Physical Properties Related to Processing o Solids Conveying o The Melting Process o Fluid Flow in Metering Channels o Mixing Processes for Single-Screw Extruders o Scaling of Single-Screw Extrusion Processes o Introduction to Troubleshooting the Extrusion Process o Contaminations in the Finished Product o Flow Surging o Rate-Limited Extrusion Processes o Barrier and High-Performance Screws o Melt-Fed Extruders

Handbook of Industrial Polyethylene and Technology

Handbook of Industrial Polyethylene and Technology
Definitive Guide to Manufacturing, Properties, Processing, Applications and Markets Set

by Mark A. Spalding,Ananda Chatterjee

  • Publisher : John Wiley & Sons
  • Release : 2017-10-12
  • Pages : 1410
  • ISBN : 1119159784
  • Language : En, Es, Fr & De
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This handbook provides an exhaustive description of polyethylene. The 50+ chapters are written by some of the most experienced and prominent authors in the field, providing a truly unique view of polyethylene. The book starts with a historical discussion on how low density polyethylene was discovered and how it provided unique opportunities in the early days. New catalysts are presented and show how they created an expansion in available products including linear low density polyethylene, high density polyethylene, copolymers, and polyethylene produced from metallocene catalysts. With these different catalysts systems a wide range of structures are possible with an equally wide range of physical properties. Numerous types of additives are presented that include additives for the protection of the resin from the environment and processing, fillers, processing aids, anti-fogging agents, pigments, and flame retardants. Common processing methods including extrusion, blown film, cast film, injection molding, and thermoforming are presented along with some of the more specialized processing techniques such as rotational molding, fiber processing, pipe extrusion, reactive extrusion, wire and cable, and foaming processes. The business of polyethylene including markets, world capacity, and future prospects are detailed. This handbook provides the most current and complete technology assessments and business practices for polyethylene resins.

Extrusion

Extrusion
The Definitive Processing Guide and Handbook

by Harold F. Giles Jr,John R. Wagner, Jr.,Eldridge M. Mount

  • Publisher : William Andrew
  • Release : 2013-09-21
  • Pages : 636
  • ISBN : 1437734820
  • Language : En, Es, Fr & De
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The second edition of Extrusion is designed to aid operators, engineers, and managers in extrusion processing in quickly answering practical day-to-day questions. The first part of the book provides the fundamental principles, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. The next section covers advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. The final part provides applications case studies in key areas for engineers such as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. This practical guide to extrusion brings together both equipment and materials processing aspects. It covers basic and advanced topics, for reference and training, in thermoplastics processing in the extruder. Detailed reference data are provided on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. A practical guide to the selection, design and optimization of extrusion processes and equipment Designed to improve production efficiency and product quality Focuses on practical fault analysis and troubleshooting techniques

Mixing in Single Screw Extrusion

Mixing in Single Screw Extrusion
A Book

by Martin Gale

  • Publisher : Smithers Rapra Technology
  • Release : 2009
  • Pages : 300
  • ISBN : 9781847351296
  • Language : En, Es, Fr & De
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Extrusion is used for about half of all plastics product manufacture, mostly using single screw extruders. Very often part of their role is the incorporation of one or more of a very wide range of additives, mainly in the form of masterbatches. These range from very visible colours to the invisible traces of anti-block and slip additives. There are also continuing pressures to improve overall economics and these require increased mixing performance in many cases. The situation that mixing in conventional single screw extruders can easily be sub-standard for the application is illustrated in the book's first chapter which describes a number of real examples of inadequate mixing. The book explains why these typical shortcomings occur and the application of mixing principles plus various practical approaches to eliminating such problems. With the growing pressures to increase the amount of plastics recycling, both the limitations and success in blending the mainly incompatible polymer combinations are explained. The development of 'add-on' cavity mixers and floating ring mixers, together with their methodology are described, whilst the associated innovative techniques using liquid injection of colours, tackifiers, lubricants, crosslinking agents and foaming agents, (particularly carbon dioxide) are included. Developments in controlled levels of blending by 'chaotic mixing' to produce products with very specific properties such as barrier films is briefly described. Extrusion tests for carbon black dispersion are included and the book concludes with a practical guide to the preparation of microtomed plastics specimens for evaluation by optical microscopy.

Food Processing Operations Analysis

Food Processing Operations Analysis
A Book

by Das

  • Publisher : Asian Books Private Limited
  • Release : 2005
  • Pages : 416
  • ISBN : 9788186299784
  • Language : En, Es, Fr & De
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The Book Tries To Make The Reader Understand The Food Processing Operations Through A Comprehensive Numerical Problem.Understanding Of The Operations Becomes Deeper When The Reader Solves The Exersise Problems Given Under Each Of The Operations. Answer To Most Of The Numerical Problems Have Been Provided In The Book. The Proposed Book Is Unique As It Includes (I) Comprehensive Numerical Problem Based On Actual Data Taken During Food Processing Operations (Ii) Mathematical Modelling Of The Processing Operations (Iii) Solutions Of The Numerical Problem Based On Mathematical Models Developed (Iv) Exersise Problems And (V) Inclusion Of Matlab Program In The Book. The Program Will Help The Reader To Find Out The Value Of The Responces As Affected By Varying The Independent Variables To Different Levels.Most Of The Materials Havebeen Class Tested Through The Teaching Of The Subjects. E.G., Food Processing Operations, Transfer Processes In Food Materials And Food Process Modelling And Evaluation. Content Highlights : - Part-I : Mechanical Operations : Size Reduction And Practice Size Analysis# High Pressure Homoginization. # Flexible Packaging And Shelf Life Prediction# Modified Atmosphere Packaging And Storage. # Single Screw Extrusion. # Seperation Of Liquids In Disk Type Centrifugal Seperator. # Seperation And Convaying On Oscillating Tray Surface. # Solid MixingsPart-Ii : Thermal Operations : Comparing Saturated And Flue Gas As Heat Transfer Media. # Liquid Heating In Plate Heat Exchanger. # Liquid Heating In Helical Tube Heat Exchanger. # Air Heating In Extended Surface Heat Exchanger. # In-Bottle Serialization. # Fluid Bed Freezing. # Concentration In Raising Film Evaporator. # Concentration In Falling Film Multistage Mechanical Vapour Recompression Evaporator. # Concentration In Scraped Surface Evaporator. # Osmo-Concentration In Fruit Solid. # Differential And Flash Distillation. # Air-Recirculatory Tray Drying. # Vaccum Drying. # Spray Drying. # Freeze Drying. # Hot Air Puffing.Part-Iii : Experimentation And Optimization : Empirical Model Development# Sensory Evaluation Using Fuzzy Logic. # Index

Analysis of the Flow Field in Single-screw Extruders Using Magnetic Resonance Imaging

Analysis of the Flow Field in Single-screw Extruders Using Magnetic Resonance Imaging
A Book

by Cynthia Kiyoko Agemura

  • Publisher : Unknown Publisher
  • Release : 1993
  • Pages : 318
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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International Polymer Processing

International Polymer Processing
The Journal of the Polymer Processing Society

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2009
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Extruder Principles and Operation

Extruder Principles and Operation
A Book

by M.J. Stevens,Jose Covas

  • Publisher : Springer Science & Business Media
  • Release : 1995-10-31
  • Pages : 494
  • ISBN : 9780412635908
  • Language : En, Es, Fr & De
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Thoroughly updated since the publication of the first edition, with new chapters on die design for operators, solids conveying and melting and twin-screw extruders, this book bridges the gap between theoretical studies and the practical experience of the processor in the extrusion of thermoplastic polymers and rubbers. Theoretical discussions generally give little attention to practical considerations, such as the conflict between productivity and product quality. Here however the authors give a clear representation of the physical mechanisms on which so much of the polymer processing industry depends, followed by guidance on operational strategies and the likely effects in terms of output, quality, uniformity and stability. Practical information is given on start-up trials, scale-up, product changing, dismantling and cleaning. Supported by over 40 tables and 176 figures, Extruder Principles and Operation will provide commercial processors with a logical background based on theory and experience, which will help them to obtain the best performance from their equipment, to recognize its limitations and to face new problems with confidence.

Frontiers of Manufacturing and Design Science

Frontiers of Manufacturing and Design Science
A Book

by Ran Chen

  • Publisher : Trans Tech Publications Ltd
  • Release : 2010-12-06
  • Pages : 4432
  • ISBN : 3038135267
  • Language : En, Es, Fr & De
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Volume is indexed by Thomson Reuters CPCI-S (WoS). This collection brings together 820 peer-reviewed papers, on Manufacturing and Design Science, aimed at promoting the development of design and manufacturing science, strengthening international academic cooperation and communications, and exchanging research ideas. It is divided into: Chapter 1 Frontiers in Manufacturing Science, Chapter 2: Frontiers in Design Science, Chapter 3: Frontiers in Mechanics and Materials, Chapter 4: Frontiers in Automation and Information.

Conference Proceedings

Conference Proceedings
A Book

by Society of Plastics Engineers. Technical Conference

  • Publisher : Unknown Publisher
  • Release : 2002
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Plastics Extrusion Technology, and Theory

Plastics Extrusion Technology, and Theory
The Design and Operation of Screw Extruders for Plastics

by Gerhard Schenkel

  • Publisher : Unknown Publisher
  • Release : 1966
  • Pages : 489
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Materials Science and Technology, Processing of Semiconductors

Materials Science and Technology, Processing of Semiconductors
A Book

by Kenneth A. Jackson

  • Publisher : Wiley-VCH
  • Release : 1996-09-17
  • Pages : 715
  • ISBN : 9783527268290
  • Language : En, Es, Fr & De
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This self-contained handbook deals with the enabling materials technology for the electronics industry. World renowned authors have contributed to this unique treatment of the processing of semiconductors and related technologies. Contents: Wilkes: Silicon Processing. Mullin: Compound Semiconductor Processing, Kuech/BleLagally/Tischler: Epitaxial Growth. Leuschner/Pawlowski: Photolithography. Griffin: Doping. Turner/Donohoe: Etching Processes in Semiconductor Manufacturing. Chang/Sze: Silicon Device Structures. Lam/Stanchina: Compound Semiconductor Device Structures. Kwong: Silicon Device Processing. Parsey, Jr: Compound Semiconductor Device Processing. Amey: Chip Carriers. Knausenberger/Turlik: Interconnection Systems.

Materials Science and Technology: Processing of semiconductors

Materials Science and Technology: Processing of semiconductors
A Book

by Robert W. Cahn,Peter Haasen,Edward J. Kramer

  • Publisher : Wiley-VCH
  • Release : 1997
  • Pages : 715
  • ISBN : 9783527268290
  • Language : En, Es, Fr & De
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Each volume in this series deals with properties, processing, applications or general phenomena associated with the most important classes of materials: metals; ceramics; glasses; polymers; semiconductors; and composites.

Twin-Screw Extruders

Twin-Screw Extruders
A Basic Understanding

by F. Martelli

  • Publisher : Springer
  • Release : 1983
  • Pages : 137
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Most books on plastics machinery include a preamble on the origin of such equipment, and some even discuss the origin of plastic itself, dating back to the early 1900s and such men as Leo Baekeland - the real founder of synthetic plastics. There seems therefore, little pur pose in reiterating what has been said before and going over the same ground so adequately covered in a number of books as well as the trade press. We are indebted to the author of this excellent treatise on twin-screw extruders for getting right down to the business at hand. The author makes mention of two pioneers - Roberto Colombo and Carlo Pasquetti - who were the first to develop twin-screw ex truders. It was my good fortune to follow the work of these pioneers, and, interestingly enough, the principles were so good that their work continues to be relevant even to the advanced and more sophisticated models so well defmed in this book.

Extrusion Cooking

Extrusion Cooking
A Book

by Ch Mercier,Pekka Linko,Judson M. Harper

  • Publisher : Amer Assn of Cereal Chemists
  • Release : 1989
  • Pages : 471
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Engineering Aspects of Food Extruders. Instrumentation for Extrusion Processes. Extrusion Plant Design. Extrusion Cooking, Modeling, Control, and Optimization. Extrusion Cooking of Starch and Starchy Products. Color. Flavor Formation and Retention During Extrusion. Nutritional Properties of Extruded Food Products. Extrusion Foods and Food Safety.

Chemical Engineering Education

Chemical Engineering Education
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1973
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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In-line-measurement of the Polymer Melting Behavior in Single Screw Extruders

In-line-measurement of the Polymer Melting Behavior in Single Screw Extruders
A Book

by Maria del Pilar Noriega Escobar

  • Publisher : Unknown Publisher
  • Release : 2001
  • Pages : 80
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Journal of Engineering for Industry

Journal of Engineering for Industry
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1985
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Principles of Polymer Processing

Principles of Polymer Processing
A Book

by Zehev Tadmor,Costas G. Gogos

  • Publisher : John Wiley & Sons
  • Release : 2013-12-02
  • Pages : 984
  • ISBN : 0470355921
  • Language : En, Es, Fr & De
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Thoroughly revised edition of the classic text on polymer processing The Second Edition brings the classic text on polymer processing thoroughly up to date with the latest fundamental developments in polymer processing, while retaining the critically acclaimed approach of the First Edition. Readers are provided with the complete panorama of polymer processing, starting with fundamental concepts through the latest current industry practices and future directions. All the chapters have been revised and updated, and four new chapters have been added to introduce the latest developments. Readers familiar with the First Edition will discover a host of new material, including: * Blend and alloy microstructuring * Twin screw-based melting and chaotic mixing mechanisms * Reactive processing * Devolatilization--theory, mechanisms, and industrial practice * Compounding--theory and industrial practice * The increasingly important role of computational fluid mechanics * A systematic approach to machine configuration design The Second Edition expands on the unique approach that distinguishes it from comparative texts. Rather than focus on specific processing methods, the authors assert that polymers have a similar experience in any processing machine and that these experiences can be described by a set of elementary processing steps that prepare the polymer for any of the shaping methods. On the other hand, the authors do emphasize the unique features of particular polymer processing methods and machines, including the particular elementary step and shaping mechanisms and geometrical solutions. Replete with problem sets and a solutions manual for instructors, this textbook is recommended for undergraduate and graduate students in chemical engineering and polymer and materials engineering and science. It will also prove invaluable for industry professionals as a fundamental polymer processing analysis and synthesis reference.

International Polymer Science and Technology

International Polymer Science and Technology
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1991
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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