Plastics Process Analysis Instrumentation And Control
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Plastics Process Analysis, Instrumentation, and Control
Author: Johannes Karl Fink
language: en
Publisher: John Wiley & Sons
Release Date: 2021-03-30
This book focuses on plastics process analysis, instrumentation for modern manufacturing in the plastics industry. Process analysis is the starting point since plastics processing is different from processing of metals, ceramics, and other materials. Plastics materials show unique behavior in terms of heat transfer, fluid flow, viscoelastic behavior, and a dependence of the previous time, temperature and shear history which determines how the material responds during processing and its end use. Many of the manufacturing processes are continuous or cyclical in nature. The systems are flow systems in which the process variables, such as time, temperature, position, melt and hydraulic pressure, must be controlled to achieve a satisfactory product which is typically specified by critical dimensions and physical properties which vary with the processing conditions. Instrumentation has to be selected so that it survives the harsh manufacturing environment of high pressures, temperatures and shear rates, and yet it has to have a fast response to measure the process dynamics. At many times the measurements have to be in a non-contact mode so as not to disturb the melt or the finished product. Plastics resins are reactive systems. The resins will degrade if the process conditions are not controlled. Analysis of the process allows one to strategize how to minimize degradation and optimize end-use properties.
Materials and Processes Used in Aircraft Construction
Author: Johannes Karl Fink
language: en
Publisher: John Wiley & Sons
Release Date: 2025-05-23
Materials and Processes Used in Aircraft Construction focuses on issues involving the use of plastics in the aerospace industry. A detailed discussion of their various applications is included, along with the innovations presented in the literature over the past decade. A wide range of important topics are discussed in the 13 chapters. Following a brief presentation of the evolution of aircraft design, aircraft design standards, and the simulation of aircraft models, individual chapters focus on: The basic and special materials used in aircraft construction; Lightweight materials for aircraft applications; Polymers used in the aerospace industry; Laminated materials used in the aerospace industry; Wing, helicopter, and balloon designs; Issues concerning the monitoring and management of the health of flight crews and passengers; The benefit of information acquired in real time, leading to an increased understanding of the fracture mechanics of composites, improving confidence in their use, and broadening their applications. Since the cost of inspecting aircraft is approximately one-third of the cost of acquiring and operating composite structures, to compete in the increasingly demanding area of aircraft structures, the cost-effective techniques that need to be developed are discussed. Audience This book will serve the needs of those working in the aerospace industry, both those with only a passing knowledge of the field and specialists who need to increase their knowledge of any particular area.
Handbook of Troubleshooting Plastics Processes
Author: John R. Wagner, Jr.
language: en
Publisher: John Wiley & Sons
Release Date: 2012-09-19
This handbook provides a framework for understanding how to characterize plastic manufacturing processes for use in troubleshooting problems. The 21 chapters are authored by well-known and experienced engineers who have specialized knowledge about the processes covered in this practical guide. From the Preface: “In every chapter, the process is described and the most common problems are discussed along with the root causes and potential technical solutions. Numerous case studies are provided that illustrate the troubleshooting process. Mark A. Spalding, The Dow Chemical Company