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Co-Rotating Twin-Screw Extruder

Co-Rotating Twin-Screw Extruder
  • Author : Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2012-11-12
  • Total pages :368
  • ISBN : 9783446433410
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Summary : 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

Compounding in Co-Rotating Twin-Screw Extruders

Compounding in Co-Rotating Twin-Screw Extruders
  • Author : Yeh Wang
  • Publisher :Unknown
  • Release Date :2000
  • Total pages :136
  • ISBN : 1859571964
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Summary : This report describes the geometric structure of modular extruders, development of the various units of an extruder and their functions, the flow mechanisms and models of their behaviour and experimental studies of extruder performance and applications. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.

Co-rotating Twin-screw Extruders

Co-rotating Twin-screw Extruders
  • Author : Klemens Kohlgruber,Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2008
  • Total pages :354
  • ISBN : 1569904227
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Summary : &Quot;This book provides basic engineering knowledge regarding twin-screw extruders. It covers the most important technical requirements and provides examples based on actual practice. Better understanding of the process is emphasized as this is a prerequisite for optimizing twin-screw designs and operating them efficiently."--BOOK JACKET.

Co-Rotating Twin-Screw Extruders: Fundamentals

Co-Rotating Twin-Screw Extruders: Fundamentals
  • Author : Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2019-11-12
  • Total pages :432
  • ISBN : 1569907471
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Summary :

Co-rotating Twin-screw Extruders

Co-rotating Twin-screw Extruders
  • Author : Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2008
  • Total pages :354
  • ISBN : 3446413723
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Summary : 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

Co-Rotating Twin-Screw Extruders: Applications

Co-Rotating Twin-Screw Extruders: Applications
  • Author : Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2020-11-09
  • Total pages :364
  • ISBN : 1569907811
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Summary : Co-rotating twin-screw extruders are extensively used for the preparation, compounding, mixing, and processing of plastics, but also in other industry branches, such as in rubber and food processing, and increasingly in the pharmaceutical industry too. Derived from the classic bestselling work "Co-Rotating Twin Screw Extruders", this book focuses on the application and machine technology of co-rotating twin-screw extrusion. It includes functional zones in the extruder, scale-up and scale-down, machine technology, and many application examples from a broad range of areas. 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 is required in order to design and operate twin-screw extruders for economically successful operations. With chapters written by many expert authors from industry and academia, this book provides valuable information on applications from a practical perspective, suitable for both beginners and experienced professional engineers.

Co-Rotating Twin-Screw Extruders – Two Volume Set

Co-Rotating Twin-Screw Extruders – Two Volume Set
  • Author : Klemens Kohlgrüber
  • Publisher :Unknown
  • Release Date :2020-12-07
  • Total pages :796
  • ISBN : 9781569908785
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Summary : Co-rotating twin-screw extruders are extensively used for the preparation, compounding, mixing, and processing of plastics, but also in other industry branches, such as in rubber and food processing, and increasingly in the pharmaceutical industry too. Derived from the classic, bestselling work "Co-Rotating Twin Screw Extruders", this book brings much of the content up to date, with an expanded focus on the fundamentals of co-rotating twin-screw extrusion, including functional zones in the extruder, screw elements, material behavior, flow properties, performance behavior, and application of computational fluid dynamics. 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 is required in order to design and operate twin-screw extruders for economically successful operations. With chapters written by many expert authors from industry and academia, this book provides valuable information on applications from a practical perspective, suitable for both beginners and experienced professional engineers. Also derived from the classic bestselling work "Co-Rotating Twin Screw Extruders", the second book focuses on the application and machine technology of co-rotating twin-screw extrusion. It includes functional zones in the extruder, scale-up and scale-down, machine technology, and many application examples from a broad range of areas.

The Technology of Extrusion Cooking

The Technology of Extrusion Cooking
  • Author : N.D. Frame
  • Publisher :Unknown
  • Release Date :2012-12-06
  • Total pages :253
  • ISBN : 9781461521358
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Summary : Extrusion cooking is a specialist area of food technology because of the complexity of the interactive effects which are inherent in the system. General predictive modelling is very difficult because ingredients are diverse and can vary considerably. Modelling tends to be product specifi- new product development tends to be by experimental designs and good fortune. The emphasis of this book is on the latest and potential applications of twin screw extrusion in food production, specifically co-rotating inter meshing screw extruders. Of course, in order to develop products and maximise the extruder potential in terms of energy, product quality and output, an overall understanding of the material flow mechanism, barrel fill length and rheology is essential. The book aims to give explanations and general guidance with examples of screw design, configuration and operat ing parameters for a variety of product categories. It is also intended to help production operators diagnose the symptoms of particular problems such as temperature control, quality variation, raw material inconsistency, etc. For the product development technologist there is more than one way to make a similar product. For example, equipment manufacturers recom mend difficult methods for producing flaked corn. In addition, their machines may differ from each other in terms of screw design, power/ volume ratio, screw tip/barrel clearance, etc. , making scale-up more prob lematic.

Reactive Extrusion

Reactive Extrusion
  • Author : Günter Beyer,Christian Hopmann
  • Publisher :Unknown
  • Release Date :2018-01-11
  • Total pages :432
  • ISBN : 9783527340989
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Summary : This first comprehensive overview of reactive extrusion technology for over a decade combines the views of contributors from both academia and industry who share their experiences and highlight possible applications and markets. They also provide updated information on the underlying chemical and physical concepts, summarizing recent developments in terms of the material and machinery used. As a result, readers will find here a compilation of potential applications for reactive extrusion to access new and cost-effective polymeric materials, while using existing compounding machines.

Mixing Prediction of Co-rotating Twin Screw Extruder Via Three-dimensional Flow Modeling

Mixing Prediction of Co-rotating Twin Screw Extruder Via Three-dimensional Flow Modeling
  • Author : 陳春良
  • Publisher :Unknown
  • Release Date :2018
  • Total pages :229
  • ISBN : OCLC:1086581068
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Summary :

Twin-Screw Extruders

Twin-Screw Extruders
  • Author : F. Martelli
  • Publisher :Unknown
  • Release Date :1983
  • Total pages :137
  • ISBN : UOM:39015000500176
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Summary : 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.

Twin Screw Extrusion

Twin Screw Extrusion
  • Author : James Lindsay White,Eung Kyu Kim
  • Publisher :Unknown
  • Release Date :2010
  • Total pages :318
  • ISBN : 1569904715
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Summary : 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

Extrusion

Extrusion
  • Author : Harold F. Giles Jr,John R. Wagner, Jr.,Eldridge M. Mount
  • Publisher :Unknown
  • Release Date :2013-09-21
  • Total pages :636
  • ISBN : 9781437734829
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Summary : 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

Extrusion

Extrusion
  • Author : Harold F. Giles Jr,Eldridge M. Mount III,John R. Wagner, Jr.
  • Publisher :Unknown
  • Release Date :2004-12-31
  • Total pages :560
  • ISBN : 9780815517115
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Summary : Why is it important to get to equilibrium and how long does it take? Are there problems running polypropylene profiles on a single screw extruder? Does the job involve compounding color concentrates on a corotating twin screw extruder? This unique reference work is designed to aid operators, engineers, and managers in quickly answering such practical day-to-day questions in extrusion processing. This comprehensive volume is divided into 7 Parts. It contains detailed reference data on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. This reference is a practical guide to extrusion bringing together both the equipment and materials processing aspects. It provides basic and advanced topics about the thermoplastics processing in the extruder, for reference and training. Parts 1 û 3, emphasize the fundamentals, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. Parts 4 û 7 treat advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. Extensive applications in Part 7 cover such contemporary areas as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. Each chapter includes review topics.

Screw Extrusion

Screw Extrusion
  • Author : James Lindsay White
  • Publisher :Unknown
  • Release Date :2003
  • Total pages :444
  • ISBN : 3446196242
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Summary : 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

Advances in powder metallurgy

Advances in powder metallurgy
  • Author : I. Todd,A.T. Sidambe
  • Publisher :Unknown
  • Release Date :2013-08-31
  • Total pages :624
  • ISBN : 9780128088586
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Summary : Metal injection moulding (MIM) is a manufacturing process used for small-to-medium-shaped precision components. This chapter provides a detailed overview of MIM and includes descriptions of the principles of the process such as powders, binders, mixing and feedstock analysis, injection moulding, binder removal (debinding), sintering and post-sintering. The chapter concludes with case studies and the design requirements for MIM and its applications.

Pharmaceutical Extrusion Technology, Second Edition

Pharmaceutical Extrusion Technology, Second Edition
  • Author : Isaac Ghebre-Sellassie,Charles E. Martin,Feng Zhang,James DiNunzio
  • Publisher :Unknown
  • Release Date :2018-03-05
  • Total pages :413
  • ISBN : 9781351129008
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Summary : The first edition of Pharmaceutical Extrusion Technology, published in 2003, was deemed the seminal book on pharmaceutical extrusion. Now it is expanded and improved, just like the usage of extrusion has expanded, improved and evolved into an accepted manufacturing technology to continuously mix active pharmaceutical ingredients with excipients for a myriad of traditional and novel dosage forms. Pharmaceutical Extrusion Technology, Second Edition reflects how this has spawned numerous research activities, in addition to hardware and process advancements. It offers new authors, expanded chapters and contains all the extrusion related technical information necessary for the development, manufacturing, and marketing of pharmaceutical dosage forms.

Understanding Extrusion

Understanding Extrusion
  • Author : Chris Rauwendaal
  • Publisher :Unknown
  • Release Date :2018-12-10
  • Total pages :251
  • ISBN : 156990698X
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Summary : "The book provides a practical understanding of basic information on extrusion in a way useful to readers without an engineering degree as well as to those new to the field. It is primarily written for extruder operators, supervisors, technical service personnel, and process engineers. Designed for on-the-job use, it guides the reader step by step through material issues, machinery, processing, and troubleshooting. This revised and extended third edition now also covers interpretation of extrusion process data, analysis of shrink void formation, dimensional variation by melt temperature fluctuations, efficient extrusion, grooved barrel extruder technology, and more. Contents: Extrusion Machinery Instrumentation and Control Complete Extrusion Lines Plastics and Their Properties Important in Extrusion How an Extruder Works How to Run an Extruder How to Troubleshoot Extrusion Problems New Developments in Extrusion and Methods to Increase Efficiency"--

Introduction to Plastics Engineering

Introduction to Plastics Engineering
  • Author : Anshuman Shrivastava
  • Publisher :Unknown
  • Release Date :2018-05-15
  • Total pages :262
  • ISBN : 9780323396196
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Summary : Introduction to Plastics Engineering provides a single reference covering the basics of polymer and plastics materials, and their properties, design, processing and applications in a practical way. The book discusses materials engineering through properties formulation, combining part design and processing to produce final products. This book will be a beneficial guide to materials engineers developing new formulations, processing engineers producing those formulations, and design and product engineers seeking to understand the materials and methods for developing new applications. The book incorporates material properties, engineering, processing, design, applications and sustainable and bio based solutions. Ideal for those just entering the industry, or transitioning between sectors, this is a quick, relevant and informative reference guide to plastics engineering and processing for engineers and plastics practitioners. Provides a single unified reference covering plastics materials, properties, design, processing and applications Offers end-to-end coverage of the industry, from formulation to part design, processing, and the final product Serves as an ideal introductory book for new plastics engineers and students of plastics engineering Provides a convenient reference for more experienced practitioners

Extrusion Processing Technology

Extrusion Processing Technology
  • Author : Jean-Marie Bouvier,Osvaldo H. Campanella
  • Publisher :Unknown
  • Release Date :2014-03-31
  • Total pages :536
  • ISBN : 9781118541722
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Summary : The only up-to-date book on this important technology, Extrusion Processing Technology: Food and Non-Food Biomaterials bridges the gap between the principles of extrusion science and the practical "know how" of operational engineers and technicians. Written by internationally renowned experts with over forty years of experience between them, this valuable reference for food scientists, food engineers, chemical engineers, and students includes coverage of new, greener technologies as well as case studies to illustrate the practical, real-world application of the principles in various settings.

Extrusion Problems Solved

Extrusion Problems Solved
  • Author : M N Riaz,G J Rokey
  • Publisher :Unknown
  • Release Date :2011-11-09
  • Total pages :184
  • ISBN : 9780857095206
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Summary : Extrusion is widely used for the preparation of a variety of foodstuffs including breakfast cereals, snack food and pasta, as well as pet food and animal and aquaculture feed. Extrusion problems solved provides responses to more than 300 frequently asked questions about the process of food extrusion and the techniques and equipment involved, in a practical question-and-answer format. The book is divided into twelve chapters for ease of reference: the opening chapters concentrate on introductory queries and on different components of an extruder system, followed by two chapters that help the reader select the correct type of extruder for a product. Chapters five and six discuss the impact of factors such as protein content and particle size on the extrusion process, while the use of pre-conditioners is discussed in chapter seven. The latter part of the book discusses specific types of extruder and die and knife assemblies, followed by a chapter on issues relating to drying extruded food products. The final chapter offers practical guidelines and rules of thumb for the most common issues relating to food and feed extrusion. Written by two leading experts in the field, Extrusion problems solved is an essential reference source and troubleshooting guide for professionals working in food, pet food and feed extrusion. It will also be a valuable training resource for students of extrusion. Offers practical guidelines and rules of thumb for the most common food and feed extrusion problems Chapters concentrate on introductory queries, types of extruder and components of extruder systems, knife assemblies, the use of pre-conditioners and issues in drying extruded food products Provides responses to more than 300 frequently asked questions about the processes, equipment and techniques of food extrusion in a practical question-and-answer format