Practical Guide to Injection Moulding
iSmithers Rapra Publishing, 2004 - Technology & Engineering - 264 pages
This Practical Guide to Injection Moulding is based on course material used by Arburg in training operators of injection moulding machines. It comes from many years of experience in this field and has been edited by an expert injection moulder at Warwick University. It will be of use to experts looking to fill gaps in their knowledge base and to those new to the industry. The factors involved in injection moulding, from material properties and selection to troubleshooting faults, are all examined in this book. It covers the equipment types in use and machine settings for different types of plastics. rheology and viscosity. High temperature can lead to poor quality mouldings due to material degradation and this is discussed. There are an exceptional number of figures in this text, with many photographs of machinery and mouldings to illustrate key points. There are also numerous tables listing key properties and processing parameters. Flow charts are included in the chapter on troubleshooting to indicate what can be changed to resolve common problems. Injection moulding in the Western World is becoming increasingly competitive as the manufacturing base for many plastics materials has moved to the East. products and mouldings to provide more added value and maintain market share. Technology is becoming more critical, together with innovation and quality control. There is a chapter on advanced processing in injection moulding covering multi-material and assisted moulding technologies. appropriate processing techniques for the range of plastics and products in the marketplace. Every injection moulder will find useful information in this text. Arburg has been manufacturing injection moulding machines since 1954 and is one of the major global players. The company prides itself on the support offered to clients, which is exemplified in its training courses. This book is based on some of this training material and hence is based on years of experience.
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Introduction to Plastics
Injection Moulding Machinery
Injection Mould Tooling Basics
Process Control Systems
Processing Amorphous and SemiCrystalline Thermoplastics
Processing Thermoset LSR and Ceramic Materials
amorphous applications back pressure blow moulding change mould Check and/or change clamping unit co-injection moulding colour components compound temperature compression compression moulding control unit cooling crosslinking cylinder temperature demoulding ejection ejector example fibre Flow behaviour Flow Chart flow front gas injection gate go through Flow heat higher holding pressure hot runner hydraulic increase initial injection injection moulding machine injection pressure injection speed injection unit internal pressure ketone manufacture melt temperature mould cavity mould filling mould temperature mould tool mould wall temperature moulding compound moulding process multi-shot nozzle parameters piston plastic plasticising plasticising cylinder platen PMMA polyamide polyether polyethylene polymer polystyrene possible Pre-drying Processing data Processing shrinkage production properties reduce resistance rheology rigidity sealing semi-crystalline shear shear rate shot shown in Figure sink marks sprue streaks stress surface technique temperature control thermal thermoplastic elastomer thermoset thermoset plastics viscosity vulcanisation wall thickness