Troubleshooting the Extrusion Process

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