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Author: Sushil Kainth
Publisher: Hanser Gardner Publications
ISBN: 9781569906729
Category : Die-casting
Languages : en
Pages : 344
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Book Description
Die Design for Extrusion of Plastic Tubes and Pipes covers this topic from a uniquely practical perspective. The content draws on the author's over 50 years of experience in the plastics processing industry, most recently as head of the successful extrusion die manufacturing company he established in 1995. His approach is oriented toward solving production problems at the design stage using computer aided techniques for design and simulation of the plastic flow. The book provides a step-by-step guide to extrusion die design, with worked examples to illustrate problem solving. It is shown how important melt flow variables (e.g., pressure drop, shear stress, shear rate, temperature variations, and distribution variations, etc.) of key materials are determined using FEM software. The detailed drawings of complete dies for various applications that are provided constitute a rare and valuable resource. Both mono- and multilayer pipes are covered. Using the proven methods and examples from this book, the reader is well-equipped to understand dies for successful manufacture of tubes and pipes of many types. With the purchase of this book, you also receive a free personal access code to download the eBook.
Author: Sushil Kainth
Publisher: Hanser Gardner Publications
ISBN: 9781569906729
Category : Die-casting
Languages : en
Pages : 344
Get Book Here
Book Description
Die Design for Extrusion of Plastic Tubes and Pipes covers this topic from a uniquely practical perspective. The content draws on the author's over 50 years of experience in the plastics processing industry, most recently as head of the successful extrusion die manufacturing company he established in 1995. His approach is oriented toward solving production problems at the design stage using computer aided techniques for design and simulation of the plastic flow. The book provides a step-by-step guide to extrusion die design, with worked examples to illustrate problem solving. It is shown how important melt flow variables (e.g., pressure drop, shear stress, shear rate, temperature variations, and distribution variations, etc.) of key materials are determined using FEM software. The detailed drawings of complete dies for various applications that are provided constitute a rare and valuable resource. Both mono- and multilayer pipes are covered. Using the proven methods and examples from this book, the reader is well-equipped to understand dies for successful manufacture of tubes and pipes of many types. With the purchase of this book, you also receive a free personal access code to download the eBook.
Author: Walter Michaeli
Publisher:
ISBN:
Category : Dyes and dyeing
Languages : en
Pages : 472
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Book Description
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).
Author: Harold F. Giles Jr
Publisher: William Andrew
ISBN: 1437734820
Category : Technology & Engineering
Languages : en
Pages : 638
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Book Description
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: Sayyad Zahid Qamar
Publisher: BoD – Books on Demand
ISBN: 9535138375
Category : Technology & Engineering
Languages : en
Pages : 222
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Book Description
Extrusion is a very popular manufacturing process, especially because of its versatility in terms of materials and shapes. Representing the vast and multifaceted field of extrusion, this book contains write-ups on latest developments from experts in the field. Part (A) on Metal Extrusion contains chapters on spur gear manufacturing, stiff vacuum extrusion, and indirect extrusion for subsurface tubular expansion. Part (B) on Food and Polymer Extrusion includes chapters on extrusion cooking of functional foods, changes in nutritional properties in extrusion of cereals, physicochemical changes of starch in extrusion of corn flour, extruded aquaculture feed, optimal design of polymer extrusion dies, and extrusion cooking technology for food products.
Author: Olga Carneiro
Publisher: Smithers Rapra
ISBN: 1847355196
Category : Science
Languages : en
Pages : 306
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Book Description
The design of extrusion forming tools (dies and calibrators) is a difficult task usually performed by the employment of experimental trial-and-error procedures, which can hinder the performance and cost of the tools, may increase the time to market of new extruded products and limit their complexity.This book provides detailed information on the design of extrusion forming tools. It describes the main problems to be faced when designing dies and calibrators, the most relevant polymer properties to be considered in the design process, the specific problems related to several types of conventional extrusion dies, and recent developments on the design of special dies and process modeling. It is an updated and unique book on the subject, where each chapter is prepared by internationally recognized experts. Having in mind its nature, it is expected to become a useful reference book for higher education students (both undergraduate and graduate ones), teachers, researchers and engineers active in the extrusion industry.
Author: Pradip K. Saha
Publisher: ASM International
ISBN: 1615032452
Category : Technology & Engineering
Languages : en
Pages : 270
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Book Description
Author: Walter Michaeli
Publisher: Hanser Gardner Publications
ISBN: 9781569903490
Category : TECHNOLOGY & ENGINEERING
Languages : en
Pages : 362
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Book Description
The third edition of this well-received 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. Advice on the configuration of dies is given, and the possibilities of computer-aided design, as well as its limitations, are demonstrated. The fundamentals and computational procedures are well explained so that the reader does not need any special prior knowledge of the subject. The mechanical configuration, handling, and maintenance of extrusion dies are described. Calibration procedures for pipes and profiles are also dealt with. This book was written for plastics engineers who need daily support in their practical work in industry and science as well for students preparing for their professional life.
Author: T. Sheppard
Publisher: Springer Science & Business Media
ISBN: 1475730012
Category : Technology & Engineering
Languages : en
Pages : 428
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Book Description
In recent years the importance of extruded alloys has increased due to the decline in copper extrusion, increased use in structural applications, environmental impact and reduced energy consumption. There have also been huge technical advances. This text provides comprehensive coverage of the metallurgical, mathematical and practical features of the process.
Author: Graham David Wells
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The development of a proven scientific method for the design of calibration dies for the extrusion processing of semi-crystalline polymers has received very little, if any, attention in the past. Previously processing manufacturers have relied upon trial and error techniques coupled with hard gained experience acquired over a number of years. This method of approach was unacceptable to Railko Ltd. for the processing of their oiled acetal copolymer material, designated PV80. This was mainly due to their inexperience in the field of work coupled with the urgency required in launching this material into the market in various forms and sizes. The need for a proven scientific method for the design of extrusion dies was apparent and of paramount importance. This thesis describes a method for the design of rod, tube, and slab dies. The mathematical model developed uses .a 'Lumped Parameter Finite Difference Technique' for the solution of the energy equation. This model allows for the inclusion of the polymers thermal properties with temperature together with flow properties of the polymer melt. Due to the lack of data available on PV80 these properties were obtained experimentally and therefore represent an integral part of the whole project. Typical processing conditions, which were obtained from an extensive and comprehensive experimental programme using a fully instrumented research die and modified production dies have also been allowed for in the mathematical model. The validity of the model has been proven experimentally by means of the fully instrumented research die and the successful design of a number of production dies that are currently in use. The experimental work also provided the opportunity to investigate possible remedies to existing production processing problems and hence enabling the formulation of processing guide lines. Finally, it has been shown by macroscopic and microscopic examination of a number of experimentally obtained extruded samples that the materials bearing characteristics are not dependent upon the processing conditions.
