Chris Rauwendaal Livres

Troubleshooting extrusion problems is one of the most challenging tasks for everyone involved in extrusion operations. It requires a good understanding of the extrusion process, knowledge of the material properties, good instrumentation, good analysis tools, and a systematic and logical approach. This book addresses all issues crucial in extrusion troubleshooting. In addition, industrial case studies, richly illustrated with photographs and photomicrographs, are used to provide exemplary approaches to efficient problem analysis and problem solving. Contents - Requirements for Efficient Troubleshooting - Tools for Troubleshooting - Systematic Troubleshooting - Case Studies: Film Coextrusion - Degradation in the Middle Layer - Film Coextrusion with Interfacial Problems - Lines in Extruded Film - Color Variation in Fibers - Film with Poor Transparency - Wear Problem in Film Extrusion - Multilayer Film with Appearance Problems - Dispersion Problem in HDPE Bottles - Polymer Degradation - Heat Sealing Problems in Coextruded Film - Output Problem in Blown Film Line - Master Batch Selection - Pipe Extrusion Problems - Systematic Problem Solving - Machine Troubleshooting and Maintenance

The intention of this book is to teach SPC and its application to specific processes in an integrated fashion. Many SPC training programs are taught by people that are very familiar with statistics but know little about process technology. However, successful implementation of SPC requires an understanding of SPC as well as process know-how. This book, therefore, aims to teach not only the principles of SPC but also basic injection molding and extrusion process technology. Contents - Injection Molding Technology - Extrusion Technology - Plastics and Plastics Properties Important in Injection Molding and Extrusion - Introduction to Statistical Process Control - Data Collection, Data Analysis, and Problem Solving - Measurement - Control Charts - Process Capability and Special SPC Techniques for Molding and Extrusion - Other Tools to Improve Process Control - Appendices

"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"--

This book covers the fundamental aspects of polymer mixing as well as modern mixing equipment. It emphasizes the basic mechanisms involved in the different mixing processes with a quantitative description of each process. This self-study guide features end of section questions so readers can evaluate their progress. Contents: Evaluation of Mixtures. Distributive Mixing. Dispersive Mixing. The Single Screw Extruder. Twin Screw Extruders. Internal and External Mixers. Static Mixing Devices.

Statistical process control has become an indispensable tool for improving productivity and quality in plastics manufacturing. This book teaches both the principles of statistical process control and extrusion process technology in an integrated manner. It is intended to help introduce the advances of SPC in extrusion operations and to show how extrusion machinery should be configured to achieve the best performance most efficiently. The book is for all people working in the polymer processing industry, especially those involved in extrusion operations. The mathematics is kept to a minimum, with the exception of a final chapter on advanced statistical techniques. An extensive glossary and comprehensive index are included, and the book contains tables and listings of available software packages. The author, Chris Rauwendaal, is the author of the well-known and widely used guide Polymer Extrusion (Hanser Publishers, 1986).