In-shot Material Property Changes from a Reaction Injection Moulding (RIM) Machine

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Publisher :
ISBN 13 :
Total Pages : 303 pages
Book Rating : 4.:/5 (117 download)

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Book Synopsis In-shot Material Property Changes from a Reaction Injection Moulding (RIM) Machine by : Nicholas Tucker

Download or read book In-shot Material Property Changes from a Reaction Injection Moulding (RIM) Machine written by Nicholas Tucker and published by . This book was released on 1994 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the development of machine control and data capture techniques on a unique four stream reaction injection moulding (RIM) machine. This multi-RIM machine was then used to investigate techniques with the potential for the production of RIM articles with controlled material property gradients throughout the moulding, or "zoned" articles. The original control computer was replaced with a personal computer and a GPIB interface. The process monitoring sensors - linear potentiometers, thermocouples, & pressure transducers were characterised, and work was started on the examination of the curing process in epoxy resins during and after the moulding process by dielectric (non-flow based) methods. For the production of zoned articles, the apparatus was characterised using a non-reacting liquid (polyol) which is close in rheological character to the experimental reacting systems, namely hard and soft polyurethanes. These polyurethanes were also injected through an in-line rheometer, and in a separate experiment into apparatus to measure the adiabatic temperature rise of the polymerisation reactions. Next, injection lance velocity profiles were altered to change the ratio of reagents between the limits of system stoichiometry. Three lances injecting through a single mixhead were then employed to produce a change in material type during the shot: two different polyols were fired sequentially against a common isocyanate stream. Finally, two mix heads were attached to a single mould, allowing two pairs of lances to inject into the mould during the shot. The changes in property produced by these methods were quantified by non-destructive testing (ultrasound), and by dynamic mechanical thermal analysis (DMTA). Evidence of correlation between the two methods is presented.

Tool and Manufacturing Engineers Handbook: Plastic Part Manufacturing

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Publisher : Society of Manufacturing Engineers
ISBN 13 : 0872634566
Total Pages : 695 pages
Book Rating : 4.8/5 (726 download)

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Book Synopsis Tool and Manufacturing Engineers Handbook: Plastic Part Manufacturing by : Philip Mitchell

Download or read book Tool and Manufacturing Engineers Handbook: Plastic Part Manufacturing written by Philip Mitchell and published by Society of Manufacturing Engineers. This book was released on 1996-12-09 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on the practical application of processes for manufacturing plastic products. It includes information on design for manufacturability (DFM), material selection, process selection, dies, molds, and tooling, extrusion, injection molding, blow molding, thermoforming, lamination, rotational molding, casting, foam processing, compression and transfer molding, fiber reinforced processing, assembly and fabrication, quality, plant engineering and maintenance, management.

Processing and Testing of Reaction Injection Molding Urethanes

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Publisher : ASTM International
ISBN 13 :
Total Pages : 107 pages
Book Rating : 4./5 ( download)

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Book Synopsis Processing and Testing of Reaction Injection Molding Urethanes by : W. A. Ashe

Download or read book Processing and Testing of Reaction Injection Molding Urethanes written by W. A. Ashe and published by ASTM International. This book was released on 1982 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reactive Processing of Polymers

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Publisher : iSmithers Rapra Publishing
ISBN 13 : 9781859570111
Total Pages : 146 pages
Book Rating : 4.5/5 (71 download)

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Book Synopsis Reactive Processing of Polymers by : M.W.R. Brown

Download or read book Reactive Processing of Polymers written by M.W.R. Brown and published by iSmithers Rapra Publishing. This book was released on 1994 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in machinery, materials and applications are outlined in the cond104 of commercial considerations and advances in fundamental understanding. The principles and benefits of polymer modification and blending via reactive extrusion are explained. A b257 of novel techniques which have developed out of the major reactive processes are also described. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.

Analysis of Polyurethane Reaction Injection Molding (RIM)

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Publisher :
ISBN 13 :
Total Pages : 544 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Analysis of Polyurethane Reaction Injection Molding (RIM) by : Ly James Lee

Download or read book Analysis of Polyurethane Reaction Injection Molding (RIM) written by Ly James Lee and published by . This book was released on 1979 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Products by Novel Reaction Injection Moulding Methods

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Publisher :
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.:/5 (117 download)

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Book Synopsis New Products by Novel Reaction Injection Moulding Methods by : Stephen Sik Fan Wong

Download or read book New Products by Novel Reaction Injection Moulding Methods written by Stephen Sik Fan Wong and published by . This book was released on 1995 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work presented in this thesis is to produce materials with different but defined properties at specific positions in an article, produced by reaction injection moulding using controlled perturbation of the stoichiometric ratio of reagents and other reactant variations during the mould filling process. The control software for the four streams RIM machine has been upgraded making it possible to (a) alter the stoichiometric ratio of reagents continuously throughout a mould filling operation (shot) to give a product with a gradation of physical properties, (b) make a step change in the stoichiometric ratio of reagents during a shot to give products with a step-change in physical properties or zoned products, and (c) utilize a dual self cleaning mixhead system which gives better control over the production of zoned products. It is aspects of these new machine developments which will be described, in particular, their application for the production of novel polymers and polymer composites. The ratio variation achieved by changing the lances velocities of two streams of the RIM machine is rather restrictive in producing an useful article. With our unique computer controlled four streams RIM machine facility, it is possible to perturb the reagent feeds by controlling the relative velocities of three or four lances to produce a wide range of polymers with different properties. Novel polymeric materials and composites of polyurethane, polyester, polyamide and epoxy were prepared in linear and centre-gated disc moulds which are fully instrumented to monitor the in-mould temperature and pressure; therefore, the thermal history of polymers during processing were fully documented. The properties of the polymer matrices and SRIM composites were evaluated by dynamic mechanical and thermal analysis (DMTA), impact test and tensometry. The relationship between the structures of polymer matrices and their physical properties were studied. The material property gradient produced from the two polyurethane systems by.

Materials Processing

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Publisher : Elsevier
ISBN 13 : 0128239093
Total Pages : 668 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Materials Processing by : Lorraine F. Francis

Download or read book Materials Processing written by Lorraine F. Francis and published by Elsevier. This book was released on 2024-04-25 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Processing: A Unified Approach to Processing of Metals, Ceramics and Polymers, Second Edition is the first textbook to bring the fundamental concepts of materials processing together in a unified approach that highlights the overlap in scientific and engineering principles. It teaches students the key principles involved in the processing of engineering materials, specifically metals, ceramics and polymers, from starting or raw materials through to the final functional forms. Its self-contained approach is based on the state of matter most central to the shaping of the material: melt, solid, powder, dispersion and solution, and vapor. With this approach, students learn processing fundamentals and appreciate the similarities and differences between the materials classes. This fully updated edition includes expanded coverage on additive manufacturing, as well as adding a new section on machining. The organization has been modified and a greater emphasis has been placed on the fundamentals of processing and manufacturing methods. This book can be utilized by upper-level undergraduates and beginning graduate students in Materials Science and Engineering who are already schooled in the structure and properties of metals, ceramics and polymers, and are ready to apply their knowledge to materials processing. It will also appeal to students from other engineering disciplines who have completed an introductory materials science and engineering course. Includes comprehensive coverage on the fundamental concepts of materials processing Provides coverage of metals, ceramics, and polymers in one text Presents examples of both standard and newer additive manufacturing methods throughout Gives students an overview on the methods that they will likely encounter in their careers

Engineering Materials and Processes Desk Reference

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Publisher : Butterworth-Heinemann
ISBN 13 : 0080878393
Total Pages : 543 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Engineering Materials and Processes Desk Reference by : Michael F. Ashby

Download or read book Engineering Materials and Processes Desk Reference written by Michael F. Ashby and published by Butterworth-Heinemann. This book was released on 2009-01-06 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-stop desk reference, for engineers involved in the use of engineered materials across engineering and electronics, this book will not gather dust on the shelf. It brings together the essential professional reference content from leading international contributors in the field. Material ranges from basic to advanced topics, including materials and process selection and explanations of properties of metals, ceramics, plastics and composites. A hard-working desk reference, providing all the essential material needed by engineers on a day-to-day basis Fundamentals, key techniques, engineering best practice and rules-of-thumb together in one quick-reference sourcebook Definitive content by the leading authors in the field, including Michael Ashby, Robert Messler, Rajiv Asthana and R.J. Crawford

Concise Encyclopedia of Plastics

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Publisher : Springer Science & Business Media
ISBN 13 : 146154579X
Total Pages : 696 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Concise Encyclopedia of Plastics by : Marlene G. Rosato

Download or read book Concise Encyclopedia of Plastics written by Marlene G. Rosato and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: After over a century of worldwide production of all kinds trol persons, cost estimators, buyers, vendors, consultants, of products, the plastics industry is now the fourth largest and others. industry in the United States. This brief, concise, and prac The bulk of the book is the alphabetical listing of en tical book is a cutting edge compendium of the plastics tries. Preceding those entries is A Plastics Overview: Fig industry's information and terminology-ranging from ures and Tables (which presents eight summary guides on design, materials, and processes, to testing, quality control, the subjects examined in the text) and then the World of regulations, legal matters, and profitability. New and use Plastics Reviews (which presents 14 articles that provide ful developments in plastic materials and processing con general introductory information, comprehensive updates, tinually are on the horizon, and the examples of these de and important networking avenues within the world of velopments that are discussed in the book provide guides plastics). Following the alphabetical listing of entries, at the to past and future trends. end of the encyclopedia, seven appendices provide back This practical and comprehensive book reviews the ground and source guide information keyed to the text of the book. The extensive and useful Appendix A, List of plastics industry virtually from A to Z through its more than 25,000 entries. Its concise entries cover the basic is Abbreviations, lists all abbreviations used in the text.

Introduction to Reaction Injection Molding

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Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Introduction to Reaction Injection Molding by : F. Melvin Sweeney

Download or read book Introduction to Reaction Injection Molding written by F. Melvin Sweeney and published by . This book was released on 1979 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Processing and Property Development in Polyurea Reaction Injection Molding

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Publisher :
ISBN 13 :
Total Pages : 586 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Processing and Property Development in Polyurea Reaction Injection Molding by : Wayne Robert Willkomm

Download or read book Processing and Property Development in Polyurea Reaction Injection Molding written by Wayne Robert Willkomm and published by . This book was released on 1990 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dangerous Properties of Industrial Materials Report

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Publisher :
ISBN 13 :
Total Pages : 740 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dangerous Properties of Industrial Materials Report by :

Download or read book Dangerous Properties of Industrial Materials Report written by and published by . This book was released on 1980 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Liquid Moulding Technologies

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Publisher : Elsevier
ISBN 13 : 1845695445
Total Pages : 476 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Liquid Moulding Technologies by : C D Rudd

Download or read book Liquid Moulding Technologies written by C D Rudd and published by Elsevier. This book was released on 1997-01-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid moulding technologies such as RTM and SRIM are increasingly used for manufacturing composites in a variety of industries. Most interest stems from the automotive industry in the continuing search for weight savings, manufacturing economies and vehicle refinement. Liquid Moulding Technologies provides a unique insight into the development and use of such processes with a comprehensive description of the material, process variants, equipment, control strategies and tooling techniques used. Procedures for materials characterisation, preform and mould design are also described and the text is augmented by a number of case studies for prototype and production parts. This book is an invaluable source for both industrial moulders and those working in research and development.

Plastic Product Material and Process Selection Handbook

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Publisher : Elsevier
ISBN 13 : 0080514057
Total Pages : 653 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Plastic Product Material and Process Selection Handbook by : Dominick V Rosato

Download or read book Plastic Product Material and Process Selection Handbook written by Dominick V Rosato and published by Elsevier. This book was released on 2004-08-04 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is for people involved in working with plastic material and plastic fabricating processes. The information and data in this book are provided as a comparative guide to help in understanding the performance of plastics and in making the decisions that must be made when developing a logical approach to fabricating plastic products to meet performance requirements at the lowest costs. It is formatted to allow for easy reader access and this care has been translated into the individual chapter constructions and index. This book makes very clear the behaviour of the 35,000 different plastics with the different behaviours of the hundreds of processes. Products reviewed range from toys to medical devices, to cars, to boats, to underwater devices, containers, springs, pipes, aircraft and spacecraft. The reader's product to be designed and/or fabricated can be directly or indirectly related to plastic materials, fabricating processes and/or product design reviews in this book. *Essential for people involved in working with plastic material and plastic fabricating processes *Will help readers understand the performance of plastics *Helps readers to make decisions which meet performance requirements and to keep costs low

Polyurethanes 94

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Publisher :
ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Polyurethanes 94 by :

Download or read book Polyurethanes 94 written by and published by . This book was released on 1994 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Plastics Technology Handbook - Volume 2

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Publisher : Momentum Press
ISBN 13 : 1606500848
Total Pages : 1024 pages
Book Rating : 4.6/5 (65 download)

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Book Synopsis Plastics Technology Handbook - Volume 2 by : Don Rosato

Download or read book Plastics Technology Handbook - Volume 2 written by Don Rosato and published by Momentum Press. This book was released on 2011-10-13 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive handbook provides a simplified, practical and innovative approach to understanding the design and manufacture of plastic products. It will expand the reader's understanding of plastics technology by defining and focusing on past, current, and future technical trends. The content is presented so that both technical and nontechnical readers can understand the interrelationships of materials to processes. Different plastic products are examined and their related critical factors are shown, from meeting performance requirements in different environments, to reducing costs and targeting for zero defects. Examples used include small to large, and simple to complex shapes. Information is included on static properties (tensile, flexural), dynamic properties (creep, fatigue, impact) and physical and chemical properties. Extensive reference sources and useful data and physical and chemical constants are also provided. Volume 2 offers detailed coverage of most major plastics processing techniques, including injection molding, extrusion, blow molding, and thermoforming.

Injection Molds and Molding

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Publisher : Springer Science & Business Media
ISBN 13 : 0442217854
Total Pages : 420 pages
Book Rating : 4.4/5 (422 download)

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Book Synopsis Injection Molds and Molding by : J.B. Dym

Download or read book Injection Molds and Molding written by J.B. Dym and published by Springer Science & Business Media. This book was released on 1987-04-30 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: