Co Rotating Twin Screw Extruder Manual
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| Author | : Harold F. Giles Jr |
| Publisher | : William Andrew |
| Total Pages | : 638 |
| Release | : 2013-09-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1437734820 |
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
| Author | : Klemens Kohlgrüber |
| Publisher | : Carl Hanser Verlag GmbH Co KG |
| Total Pages | : 370 |
| Release | : 2012-11-12 |
| Genre | : Technology & Engineering |
| ISBN | : 3446433414 |
Co-rotating screws and/or extruders are used in many branches of industry for producing, preparing and/or processing highly viscous materials. They find a wide variety of applications especially in the plastics, rubber and food industries. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes and material behavior are required in order to design twin-screw extruder for economically successful operations. This book provides basic engineering knowledge regarding twin-screw machines; it lists the most important machine-technical requirements and provides examples based on actual practice. Better understanding of the processes is emphasized as this is a prerequisite for optimizing twin-screw designs and operating them efficiently. Besides basic functions, such as compounding, the book focuses on: - the historical development of twin-screws - the geometry of the screw elements (fundamentals, basic patents, patents overview) - material properties and material behavior in the machine - fundamentals of feed behavior, pressure build-up and power input - examples of applications for various processing tasks - compounding: tasks, applications, processing zones - potential and limits of modeling - scaling-up various processes - machine design incl. drives and materials
| Author | : James Lindsay White |
| Publisher | : |
| Total Pages | : 444 |
| Release | : 2003 |
| Genre | : Plastics |
| ISBN | : 9783446196247 |
Screw extruders are the most important of all polymer processing machines There is a need for a comprehensive book on this subject. This book emphazises the understanding of the underlaying principles of screw extrusion, the design and behavior of screw based machines. It helps the enineer t optimize his equipment and enhance production rates. Contents: · Introduction · Fundamentals · Screw Extrusion Technology · Technology of Single Screw Extrusion with Reciprocating Screws · Single Screw Extruder Analysis and Design · Twin and Multiscrew Extrusion
| Author | : James Lindsay White |
| Publisher | : Hanser Gardner Publications |
| Total Pages | : 318 |
| Release | : 2010 |
| Genre | : Technology & Engineering |
| ISBN | : 9781569904718 |
Twin screw extrusion has become an important part of polymer processing technology. Twin screw extruders are widely used for reactive, procesing, including both polymerization and grafting reactions, for compounding, blending, devolatilization, as well as for thermoplastic final shaping operations, particularly profile extrusion. The purpose of this book is to carefully describe each of these three types of machines and the historical development of their technologies. The book also provides insight into the efforts to model/simulate the flow characteristics of these machines and into the experimental studies of their machine characteristics. This book is unique in clearly distinguishing between the different types of twin screw extruders on the market and in reviewing their capabilities. It is the authors' primary intention to provide a balanced but in-depth overview of twin screw extrusion technology to chemists, engineers and technologists alike
| Author | : Jean-Marie Bouvier |
| Publisher | : John Wiley & Sons |
| Total Pages | : 536 |
| Release | : 2014-06-23 |
| Genre | : Technology & Engineering |
| ISBN | : 1444338110 |
Extrusion is the operation of forming and shaping a molten or dough-like material by forcing it through a restriction, or die. It is applied and used in many batch and continuous processes. However, extrusion processing technology relies more on continuous process operations which use screw extruders to handle many process functions such as the transport and compression of particulate components, melting of polymers, mixing of viscous media, heat processing of polymeric and biopolymeric materials, product texturization and shaping, defibering and chemical impregnation of fibrous materials, reactive extrusion, and fractionation of solid-liquid systems. Extrusion processing technology is highly complex, and in-depth descriptions and discussions are required in order to provide a complete understanding and analysis of this area: this book aims to provide readers with these analyses and discussions. Extrusion Processing Technology: Food and Non-Food Biomaterials provides an overview of extrusion processing technology and its established and emerging industrial applications. Potency of process intensification and sustainable processing is also discussed and illustrated. The book aims to span the gap between the principles of extrusion science and the practical knowledge of operational engineers and technicians. The authors bring their research and industrial experience in extrusion processing technology to provide a comprehensive, technical yet readable volume that will appeal to readers from both academic and practical backgrounds. This book is primarily aimed at scientists and engineers engaged in industry, research, and teaching activities related to the extrusion processing of foods (especially cereals, snacks, textured and fibrated proteins, functional ingredients, and instant powders), feeds (especially aquafeeds and petfoods), bioplastics and plastics, biosourced chemicals, paper pulp, and biofuels. It will also be of interest to students of food science, food engineering, and chemical engineering. Also available Formulation Engineering of Foods Edited by J.E. Norton, P.J. Fryer and I.T. Norton ISBN 978-0-470-67290-7 Food and Industrial Bioproducts and Bioprocessing Edited by N.T. Dunford ISBN 978-0-8138-2105-4 Handbook of Food Process Design Edited by J. Ahmed and M.S. Rahman ISBN 978-1-4443-3011-3
| Author | : Dennis Douroumis |
| Publisher | : John Wiley & Sons |
| Total Pages | : 404 |
| Release | : 2012-04-24 |
| Genre | : Science |
| ISBN | : 1118307879 |
Hot-melt extrusion (HME) - melting a substance and forcing it through an orifice under controlled conditions to form a new material - is an emerging processing technology in the pharmaceutical industry for the preparation of various dosage forms and drug delivery systems, for example granules and sustained release tablets. Hot-Melt Extrusion: Pharmaceutical Applications covers the main instrumentation, operation principles and theoretical background of HME. It then focuses on HME drug delivery systems, dosage forms and clinical studies (including pharmacokinetics and bioavailability) of HME products. Finally, the book includes some recent and novel HME applications, scale -up considerations and regulatory issues. Topics covered include: principles and die design of single screw extrusion twin screw extrusion techniques and practices in the laboratory and on production scale HME developments for the pharmaceutical industry solubility parameters for prediction of drug/polymer miscibility in HME formulations the influence of plasticizers in HME applications of polymethacrylate polymers in HME HME of ethylcellulose, hypromellose, and polyethylene oxide bioadhesion properties of polymeric films produced by HME taste masking using HME clinical studies, bioavailability and pharmacokinetics of HME products injection moulding and HME processing for pharmaceutical materials laminar dispersive & distributive mixing with dissolution and applications to HME technological considerations related to scale-up of HME processes devices and implant systems by HME an FDA perspective on HME product and process understanding improved process understanding and control of an HME process with near-infrared spectroscopy Hot-Melt Extrusion: Pharmaceutical Applications is an essential multidisciplinary guide to the emerging pharmaceutical uses of this processing technology for researchers in academia and industry working in drug formulation and delivery, pharmaceutical engineering and processing, and polymers and materials science. This is the first book from our brand new series Advances in Pharmaceutical Technology. Find out more about the series here.
| Author | : D.V. Rosato |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 791 |
| Release | : 2013-11-27 |
| Genre | : Technology & Engineering |
| ISBN | : 1461557933 |
Worldwide, extrusion lines successfully process more plastics into prod ucts than other processes by consuming at least 36 wt% of all plastics. They continue to find practical solutions for new products and/ or prob lems to meet new product performances. This book, with its practical industry reviews, is a unique handbook (the first of its kind) that covers over a thousand of the potential combina tions of basic variables or problems with solutions that can occur from up-stream to down-stream equipment. Guidelines are provided for maxi mizing processing efficiency and operating at the lowest possible cost. It has been prepared with an awareness that its usefulness will depend greatly upon its simplicity and provision of essential information. It should be useful to: 0) those already extruding and desiring to obtain additional information for their line and/ or prOVide a means of reviewing other lines that can provide their line with operating improvements; (2) those processing or extruding plastics for the first time; (3) those consider ing going into another extrusion process; (4) those desiring additional information about employing the design of various products more effi ciently, with respect to both performance and cost; (5) those contemplat ing entering the business of extrusion; (6) those in new venture groups, materials development, and/ or market development; (7) those in disci plines such as nonplastics manufacturers, engineers, designers, quality control, financial, and management; and (8) those requiring a textbook on extrusion in trade schools and high schools or colleges.
| Author | : Frank Händle |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 414 |
| Release | : 2009-08-12 |
| Genre | : Science |
| ISBN | : 3540271007 |
Frank Handle ̈ 1.1 What to Expect For some time now, I have been toying around with the idea of writing a book about “Ceramic Extrusion”, because to my amazement I have been unable to locate a single existing, comprehensive rundown on the subject – much in contrast to, say, plastic extrusion and despite the fact that there are some outstanding contributions to be found about certain, individual topics, such as those in textbooks by Reed [1], Krause [2], Bender/Handle ̈ [3] et al. By way of analogy to Woody Allen’s wonderfully ironic movie entitled “Eve- thing You Always Wanted to Know about Sex”, I originally intended to call this book “Everything You Always Wanted to Know about Ceramic Extrusion”, but - ter giving it some extra thought, I eventually decided on a somewhat soberer title. Nevertheless, my companion writers and I have done our best – considering our target group and their motives – not to revert to the kind of jargon that people use when they think the less understandable it sounds, the more scienti c it appears. This book addresses all those who are looking for a lot or a little general or selective information about ceramic extrusion and its sundry aspects. We realize that most of our readers will not be perusing this book just for fun or out of intellectual curiosity, but because they hope to get some use out of it for their own endeavours.
| Author | : Leszek Moscicki |
| Publisher | : John Wiley & Sons |
| Total Pages | : 238 |
| Release | : 2011-01-11 |
| Genre | : Technology & Engineering |
| ISBN | : 352763410X |
Offering an engineering perspective and the latest information on the application of this rapidly expanding technique, this practical book covers the technology, engineering, materials and products, as well as economic and ecological aspects. In addition to the theory, it also utilizes case studies that can easily be put into industrial practice. Each step of the process is discussed in terms of sustainability, and all data complies with the EU and FTA environmental regulations. Invaluable reading for food chemists and technologists, process engineers, chemists in industry, agricultural scientists, and chemical engineers. From the Contents: * Engineering Aspects of Extrusion * Raw Materials in the Production of Extrudates * Production of Breakfast Cereals, Snack Pellets, Baby Food and more * Extrusion Technique in Confectionery * Pet Food and Aquafeed * Extrusion-Cooking in Waste Management and Paper Pulp Processing * Thermoplastic Starch * Expanders * Process Automation * Scale-Up of Extrusion-Cooking in Single-Screw Extruders
| Author | : K O Niska |
| Publisher | : Elsevier |
| Total Pages | : 383 |
| Release | : 2008-05-29 |
| Genre | : Technology & Engineering |
| ISBN | : 1845694570 |
Wood-polymer composites (WPC) are materials in which wood is impregnated with monomers that are then polymerised in the wood to tailor the material for special applications. The resulting properties of these materials, from lightness and enhanced mechanical properties to greater sustainability, has meant a growing number of applications in such areas as building, construction and automotive engineering. This important book reviews the manufacture of wood-polymer composites, how their properties can be assessed and improved and their range of uses.After an introductory chapter, the book reviews key aspects of manufacture, including raw materials, manufacturing technologies and interactions between wood and synthetic polymers. Building on this foundation, the following group of chapters discusses mechanical and other properties such as durability, creep behaviour and processing performance. The book concludes by looking at orientated wood-polymer composites, wood-polymer composite foams, at ways of assessing performance and at the range of current and future applications.With its distinguished editors and international team of contributors, Wood-polymer composites is a valuable reference for all those using and studying these important materials. - Provides a comprehensive survey of major new developments in wood-polymer composites - Reviews the key aspects of manufacture, including raw materials and manufacturing technologies - Discusses properties such as durability, creep behaviour and processing performance
